From bbf6cc6679497e36eb46b7e58d9aca3a4507f7b0 Mon Sep 17 00:00:00 2001
From: TongTongStudio <tongtongstudios@gmail.com>
Date: Fri, 21 Aug 2026 19:10:09 +0800
Subject: [PATCH] =?UTF-8?q?refactor(mvvm):=20=E9=87=8D=E6=9E=84=E9=97=B9?=
 =?UTF-8?q?=E9=92=9F=E4=B8=8E=E5=BA=94=E7=94=A8=E5=88=97=E8=A1=A8ViewModel?=
 =?UTF-8?q?=E4=B8=BAAndroidViewModel?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

将ViewModel改为继承BaseAndroidViewModel，通过构造器注入Application，使用addDisposable管理RxJava订阅，LiveData改为私有并提供getter，移除RxLifecycle依赖。
---
 AGENTS.md                                     | 1059 +++++++++++++++++
 .../activity/alarm/add/AlarmAddActivity.java  |    4 +-
 .../activity/alarm/add/AlarmAddViewModel.java |   84 +-
 .../alarm/edit/AlarmEditActivity.java         |    6 +-
 .../alarm/edit/AlarmEditViewModel.java        |  108 +-
 .../alarm/list/AlarmListActivity.java         |    6 +-
 .../alarm/list/AlarmListViewModel.java        |  121 +-
 .../dialer/activity/app/AppListActivity.java  |   16 +-
 .../dialer/activity/app/AppListViewModel.java |  175 +--
 .../contact/add/ContactAddActivity.java       |    6 +-
 .../contact/add/ContactAddViewModel.java      |   34 +-
 .../contact/edit/ContactEditActivity.java     |   19 +-
 .../contact/edit/ContactEditViewModel.java    |   24 +-
 .../contact/list/ContactListActivity.java     |    2 +-
 .../contact/list/ContactListViewModel.java    |   17 +-
 .../contact/test/ContactTestActivity.java     |    6 +-
 .../contact/test/ContactTestViewModel.java    |   30 +-
 .../dialer/activity/main/MainActivity.java    |   64 +-
 .../dialer/activity/main/MainViewModel.java   |   97 +-
 .../settings/call/SettingsCallActivity.java   |    2 +-
 .../settings/call/SettingsCallViewModel.java  |    4 +-
 .../settings/home/SettingsActivity.java       |    8 +-
 .../settings/home/SettingsViewModel.java      |   35 +-
 .../settings/utils/SettingsUtilsActivity.java |    2 +-
 .../utils/SettingsUtilsViewModel.java         |    5 +-
 .../activity/template/TemplateActivity.java   |    2 +-
 .../activity/template/TemplateViewModel.java  |    4 +-
 .../weather/main/WeatherMainActivity.java     |   13 +-
 .../weather/main/WeatherMainViewModel.java    |   26 +-
 .../com/ttstd/dialer/base/BaseFragment.java   |  103 +-
 .../base/mvvm/BaseAndroidViewModel.java       |  135 +++
 .../dialer/base/mvvm/BaseMvvmActivity.java    |  161 ++-
 .../ttstd/dialer/base/mvvm/BaseViewModel.java |  133 ++-
 .../ttstd/dialer/base/mvvm/IMvvmUiState.java  |   22 +
 .../mvvm/fragment/BaseMvvmDialogFragment.java |  132 +-
 .../base/mvvm/fragment/BaseMvvmFragment.java  |  164 ++-
 .../dialer/fragment/app/AppFragment.java      |    8 +-
 .../dialer/fragment/app/AppViewModel.java     |   62 +-
 .../fragment/contact/ContactFragment.java     |   10 +-
 .../fragment/contact/ContactViewModel.java    |   27 +-
 .../dialog/contact/call/CallFragment.java     |    2 +-
 .../dialog/contact/call/CallViewModel.java    |    4 +-
 .../delete/ContactDeleteDialogFragment.java   |    2 +-
 .../delete/ContactDeleteViewModel.java        |    4 +-
 .../contact/edit/EditDialogFragment.java      |    2 +-
 .../dialog/contact/edit/EditViewModel.java    |    4 +-
 .../dialog/dock/DockAppDialogFagment.java     |   10 +-
 .../dialog/dock/DockAppViewModel.java         |    5 +-
 .../dialog/move/MoveAppDialogFagment.java     |   10 +-
 .../dialog/move/MoveAppViewModel.java         |    4 +-
 .../shortcut/ShortcutDialogFagment.java       |   10 +-
 .../dialog/shortcut/ShortcutViewModel.java    |    4 +-
 .../dialer/fragment/home/HomeFragment.java    |    2 +-
 .../dialer/fragment/home/HomeViewModel.java   |    4 +-
 .../fragment/settings/SettingsFragment.java   |    2 +-
 .../fragment/settings/SettingsViewModel.java  |    4 +-
 .../ttstd/dialer/network/OkHttpManager.java   |    7 +
 57 files changed, 2236 insertions(+), 780 deletions(-)
 create mode 100644 AGENTS.md
 create mode 100644 app/src/main/java/com/ttstd/dialer/base/mvvm/BaseAndroidViewModel.java
 create mode 100644 app/src/main/java/com/ttstd/dialer/base/mvvm/IMvvmUiState.java

diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..f8f3215
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,1059 @@
+# AIAGENTS.md — Android MVVM 架构规范
+
+> 本文件用于指导 AI Agent 在 Android 项目中正确生成 MVVM 架构代码。  
+> 所有新增/修改的 Activity、Fragment、ViewModel 必须遵循以下规范。
+
+---
+
+## 一、架构总览
+
+```
+┌─────────────────────────────────────────────────────┐
+│                      View (UI)                       │
+│         Activity / Fragment / ViewBinding            │
+│  职责：渲染 UI、接收用户输入、订阅 ViewModel 状态       │
+└────────────────────┬────────────────────────────────┘
+                     │ 调用方法 / 观察 LiveData
+                     ▼
+┌─────────────────────────────────────────────────────┐
+│                   ViewModel                         │
+│         持有 UI 状态、处理业务逻辑、暴露数据            │
+│  职责：不持有 View 引用、不直接操作数据层               │
+└────────────────────┬────────────────────────────────┘
+                     │ 调用
+                     ▼
+┌─────────────────────────────────────────────────────┐
+│                  Repository                         │
+│         统一数据源入口（网络 + 本地缓存）               │
+└────────────────────┬────────────────────────────────┘
+                     │
+                     ▼
+┌─────────────────────────────────────────────────────┐
+│                    Model (Data)                      │
+│          Retrofit / Room / SharedPreferences         │
+└─────────────────────────────────────────────────────┘
+```
+
+---
+
+## 二、核心原则
+
+| 原则 | 说明 |
+|------|------|
+| **单向数据流** | View → 调用 ViewModel 方法 → ViewModel 更新 LiveData → View 被动刷新 |
+| **ViewModel 不持有 View 引用** | 禁止传入 Activity / Fragment / View / Context |
+| **View 不直接访问数据层** | 所有数据必须通过 ViewModel → Repository |
+| **生命周期安全** | ViewModel 中的数据操作需在 `viewModelScope` 或 `Lifecycle` 感知下执行 |
+| **可测试性** | ViewModel 不依赖 Android Framework，便于单元测试 |
+
+---
+
+## 三、基类代码
+
+### 3.1 BaseViewModel（无需 Context 时使用）
+
+> **适用场景：** ViewModel 不需要 `Context`（如纯内存计算、通过 Repository 访问数据等）。  
+> 若需要 `Context` / `Application`，请使用 **3.2 BaseAndroidViewModel**。
+
+```java
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.disposables.Disposable;
+
+/**
+ * MVVM ViewModel 基类（无 Context 版本）
+ *
+ * 职责：
+ *   - 持有 UI 状态（LiveData）
+ *   - 处理业务逻辑
+ *   - 暴露数据给 View 层
+ *   - 通过 CompositeDisposable 统一管理 RxJava 异步任务
+ *
+ * 禁止：
+ *   - 持有任何 View 引用（Activity / Fragment / View / Context）
+ *   - 直接进行网络请求或数据库操作（必须通过 Repository）
+ *   - 在 ViewModel 中弹 Toast / Dialog / Snackbar
+ *   - 手动创建 Thread / Executor 执行异步任务（必须使用 RxJava + CompositeDisposable）
+ *   - 忘记将 Disposable add 到 disposables 中
+ */
+public abstract class BaseViewModel extends ViewModel {
+
+    // ============================================================
+    // 通用 UI 状态
+    // ============================================================
+
+    /** 全局加载状态 */
+    private final MutableLiveData<Boolean> loadingLiveData = new MutableLiveData<>(false);
+
+    /** 全局错误提示 */
+    private final MutableLiveData<String> errorLiveData = new MutableLiveData<>();
+
+    /** 全局成功提示 */
+    private final MutableLiveData<String> successLiveData = new MutableLiveData<>();
+
+    // ============================================================
+    // RxJava 异步管理（核心）
+    // ============================================================
+
+    /**
+     * CompositeDisposable 用于统一管理所有 RxJava 订阅。
+     * 在 onCleared() 中自动 dispose，防止内存泄漏。
+     *
+     * 使用方式：
+     *   disposables.add(
+     *       repository.fetchUser(id)
+     *           .subscribeOn(Schedulers.io())
+     *           .observeOn(AndroidSchedulers.mainThread())
+     *           .subscribe(user -> { ... }, throwable -> { ... })
+     *   );
+     */
+    protected final CompositeDisposable disposables = new CompositeDisposable();
+
+    // ============================================================
+    // 对外暴露（只读）
+    // ============================================================
+
+    public LiveData<Boolean> getLoadingLiveData() {
+        return loadingLiveData;
+    }
+
+    public LiveData<String> getErrorLiveData() {
+        return errorLiveData;
+    }
+
+    public LiveData<String> getSuccessLiveData() {
+        return successLiveData;
+    }
+
+    // ============================================================
+    // 受保护的方法（子类调用）
+    // ============================================================
+
+    protected void setLoading(boolean loading) {
+        loadingLiveData.postValue(loading);
+    }
+
+    protected void setError(String message) {
+        errorLiveData.postValue(message);
+    }
+
+    protected void setSuccess(String message) {
+        successLiveData.postValue(message);
+    }
+
+    /**
+     * 便捷方法：将 Disposable 添加到 CompositeDisposable 中管理。
+     * 子类在发起 RxJava 请求时调用此方法。
+     */
+    protected void addDisposable(Disposable disposable) {
+        disposables.add(disposable);
+    }
+
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
+    @Override
+    protected void onCleared() {
+        super.onCleared();
+        // ViewModel 销毁时，自动取消所有正在执行的 RxJava 任务
+        if (!disposables.isDisposed()) {
+            disposables.clear();
+        }
+    }
+}
+```
+
+---
+
+### 3.2 BaseAndroidViewModel（需要 Context 时使用）
+
+> **适用场景：** ViewModel 需要 `Context` / `Application`（如读取 `SharedPreferences`、访问 `Resources`、使用 `SystemService` 等）。  
+> 继承 `AndroidViewModel`，通过 `getApplication()` 获取 `Application` 上下文（**不会泄漏**）。  
+> 其余代码结构与 `BaseViewModel` 完全一致。
+
+```java
+import android.app.Application;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.disposables.Disposable;
+
+/**
+ * MVVM ViewModel 基类（带 Context 版本）
+ *
+ * 继承 AndroidViewModel，可通过 getApplication() 获取 Application 级别的 Context。
+ * Application Context 生命周期与进程一致，不会造成内存泄漏。
+ *
+ * 职责：
+ *   - 持有 UI 状态（LiveData）
+ *   - 处理业务逻辑
+ *   - 暴露数据给 View 层
+ *   - 通过 CompositeDisposable 统一管理 RxJava 异步任务
+ *   - 可通过 getApplication() 获取 Application Context（安全）
+ *
+ * 禁止：
+ *   - 持有任何 View 引用（Activity / Fragment / View）
+ *   - 使用 Activity Context 或持有 View 的 Context（只能使用 Application）
+ *   - 直接进行网络请求或数据库操作（必须通过 Repository）
+ *   - 在 ViewModel 中弹 Toast / Dialog / Snackbar
+ *   - 手动创建 Thread / Executor 执行异步任务（必须使用 RxJava + CompositeDisposable）
+ *   - 忘记将 Disposable add 到 disposables 中
+ */
+public abstract class BaseAndroidViewModel extends AndroidViewModel {
+
+    // ============================================================
+    // 通用 UI 状态
+    // ============================================================
+
+    /** 全局加载状态 */
+    private final MutableLiveData<Boolean> loadingLiveData = new MutableLiveData<>(false);
+
+    /** 全局错误提示 */
+    private final MutableLiveData<String> errorLiveData = new MutableLiveData<>();
+
+    /** 全局成功提示 */
+    private final MutableLiveData<String> successLiveData = new MutableLiveData<>();
+
+    // ============================================================
+    // RxJava 异步管理（核心）
+    // ============================================================
+
+    /**
+     * CompositeDisposable 用于统一管理所有 RxJava 订阅。
+     * 在 onCleared() 中自动 dispose，防止内存泄漏。
+     */
+    protected final CompositeDisposable disposables = new CompositeDisposable();
+
+    // ============================================================
+    // 构造方法
+    // ============================================================
+
+    public BaseAndroidViewModel(@NonNull Application application) {
+        super(application);
+    }
+
+    // ============================================================
+    // 对外暴露（只读）
+    // ============================================================
+
+    public LiveData<Boolean> getLoadingLiveData() {
+        return loadingLiveData;
+    }
+
+    public LiveData<String> getErrorLiveData() {
+        return errorLiveData;
+    }
+
+    public LiveData<String> getSuccessLiveData() {
+        return successLiveData;
+    }
+
+    // ============================================================
+    // 受保护的方法（子类调用）
+    // ============================================================
+
+    protected void setLoading(boolean loading) {
+        loadingLiveData.postValue(loading);
+    }
+
+    protected void setError(String message) {
+        errorLiveData.postValue(message);
+    }
+
+    protected void setSuccess(String message) {
+        successLiveData.postValue(message);
+    }
+
+    /**
+     * 便捷方法：将 Disposable 添加到 CompositeDisposable 中管理。
+     * 子类在发起 RxJava 请求时调用此方法。
+     */
+    protected void addDisposable(Disposable disposable) {
+        disposables.add(disposable);
+    }
+
+    // ============================================================
+    // Context 安全访问
+    // ============================================================
+
+    /**
+     * 获取 Application Context（安全，不会泄漏）。
+     * 子类可通过此方法访问：
+     *   - getApplication().getSharedPreferences(...)
+     *   - getApplication().getResources().getString(...)
+     *   - getApplication().getSystemService(...)
+     */
+    @NonNull
+    protected Application getAppContext() {
+        return getApplication();
+    }
+
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
+    @Override
+    protected void onCleared() {
+        super.onCleared();
+        // ViewModel 销毁时，自动取消所有正在执行的 RxJava 任务
+        if (!disposables.isDisposed()) {
+            disposables.clear();
+        }
+    }
+}
+```
+
+> **选择指南：**
+> | 需求 | 继承 |
+> |------|------|
+> | 不需要 Context，纯数据驱动 | `BaseViewModel` |
+> | 需要 SharedPreferences / Resources / SystemService | `BaseAndroidViewModel` |
+> | 需要 Activity Context（弹 Dialog 等） | ❌ 不允许，应通过 View 层 LiveData 回调处理 |
+
+---
+
+### 3.3 BaseMvvmActivity
+
+```java
+/**
+ * MVVM Activity 基类
+ * 
+ * 职责：
+ *   - 绑定 ViewBinding
+ *   - 初始化 ViewModel
+ *   - 订阅 ViewModel 中的 LiveData
+ *   - 将用户操作转发给 ViewModel
+ * 
+ * 禁止：
+ *   - 在 Activity 中直接进行网络请求或数据库操作
+ *   - 持有可变 LiveData 的引用
+ *   - 在 Activity 中写业务逻辑
+ * 
+ * @param <VM> ViewModel 类型，必须继承 BaseViewModel 或 BaseAndroidViewModel
+ * @param <VB> ViewBinding 类型
+ */
+public abstract class BaseMvvmActivity<VM extends BaseViewModel, VB extends ViewBinding>
+        extends AppCompatActivity {
+
+    // ============================================================
+    // 成员
+    // ============================================================
+
+    protected VM viewModel;
+    protected VB binding;
+
+    // ============================================================
+    // 抽象方法（子类必须实现）
+    // ============================================================
+
+    /** 创建 ViewModel 实例 */
+    protected abstract VM createViewModel();
+
+    /** 创建 ViewBinding 实例 */
+    protected abstract VB createViewBinding();
+
+    /** 初始化界面（如设置 Adapter、Listener 等） */
+    protected abstract void initView();
+
+    /** 订阅 ViewModel 的 LiveData */
+    protected abstract void observeViewModel();
+
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // 1. 创建 ViewBinding
+        binding = createViewBinding();
+        setContentView(binding.getRoot());
+
+        // 2. 创建 ViewModel
+        viewModel = createViewModel();
+
+        // 3. 订阅 ViewModel
+        observeViewModel();
+
+        // 4. 初始化界面
+        initView();
+
+        // 5. 加载数据
+        onLoadData();
+    }
+
+    /**
+     * 页面创建完成后加载数据
+     * 子类可重写此方法触发首次数据加载
+     */
+    protected void onLoadData() {
+        // 默认空实现
+    }
+
+    // ============================================================
+    // 通用订阅（可选重写）
+    // ============================================================
+
+    /**
+     * 订阅全局通用状态（loading / error / success）
+     * 子类可在 observeViewModel() 中调用 super.observeCommonState()
+     */
+    protected void observeCommonState() {
+        viewModel.getLoadingLiveData().observe(this, loading -> {
+            if (loading != null && loading) {
+                showLoading();
+            } else {
+                hideLoading();
+            }
+        });
+
+        viewModel.getErrorLiveData().observe(this, error -> {
+            if (error != null && !error.isEmpty()) {
+                showError(error);
+            }
+        });
+
+        viewModel.getSuccessLiveData().observe(this, msg -> {
+            if (msg != null && !msg.isEmpty()) {
+                showSuccess(msg);
+            }
+        });
+    }
+
+    // ============================================================
+    // UI 辅助方法（子类可重写）
+    // ============================================================
+
+    protected void showLoading() {
+        // 默认实现：可替换为自定义 LoadingDialog
+        // LoadingDialog.show(this);
+    }
+
+    protected void hideLoading() {
+        // LoadingDialog.dismiss();
+    }
+
+    protected void showError(String message) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    }
+
+    protected void showSuccess(String message) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    }
+
+    // ============================================================
+    // 禁止使用的模式（编译期约束）
+    // ============================================================
+
+    /**
+     * @deprecated 禁止在 Activity 中直接创建 Handler 做延时操作
+     *             → 应使用 ViewModel + LiveData 驱动
+     */
+    @Deprecated
+    protected Handler getHandler() {
+        throw new UnsupportedOperationException("禁止在 MVVM Activity 中使用 Handler");
+    }
+}
+```
+
+---
+
+### 3.4 BaseMvvmFragment
+
+```java
+/**
+ * MVVM Fragment 基类
+ * 
+ * 职责：
+ *   - 绑定 ViewBinding
+ *   - 初始化 ViewModel（默认与 Activity 共享 ViewModel）
+ *   - 订阅 ViewModel 中的 LiveData
+ *   - 将用户操作转发给 ViewModel
+ * 
+ * 禁止：
+ *   - 在 Fragment 中直接进行网络请求或数据库操作
+ *   - 持有可变 LiveData 的引用
+ *   - 在 Fragment 中写业务逻辑
+ *   - 使用 getActivity() 强转后直接操作 Activity（应通过 ViewModel 通信）
+ * 
+ * @param <VM> ViewModel 类型，必须继承 BaseViewModel 或 BaseAndroidViewModel
+ * @param <VB> ViewBinding 类型
+ */
+public abstract class BaseMvvmFragment<VM extends BaseViewModel, VB extends ViewBinding>
+        extends Fragment {
+
+    // ============================================================
+    // 成员
+    // ============================================================
+
+    protected VM viewModel;
+    protected VB binding;
+
+    /** 是否与 Activity 共享 ViewModel（默认 true） */
+    protected boolean shareViewModelWithActivity() {
+        return true;
+    }
+
+    // ============================================================
+    // 抽象方法（子类必须实现）
+    // ============================================================
+
+    /** 创建 ViewModel 实例 */
+    protected abstract VM createViewModel();
+
+    /** 创建 ViewBinding 实例 */
+    protected abstract VB createViewBinding(@NonNull LayoutInflater inflater, @Nullable ViewGroup container);
+
+    /** 初始化界面 */
+    protected abstract void initView();
+
+    /** 订阅 ViewModel 的 LiveData */
+    protected abstract void observeViewModel();
+
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        binding = createViewBinding(inflater, container);
+        return binding.getRoot();
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        // 1. 创建 ViewModel
+        viewModel = createViewModel();
+
+        // 2. 订阅 ViewModel
+        observeViewModel();
+
+        // 3. 初始化界面
+        initView();
+
+        // 4. 加载数据
+        onLoadData();
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        // 释放 ViewBinding 引用，防止内存泄漏
+        binding = null;
+    }
+
+    /**
+     * 页面创建完成后加载数据
+     * 子类可重写此方法触发首次数据加载
+     */
+    protected void onLoadData() {
+        // 默认空实现
+    }
+
+    // ============================================================
+    // 通用订阅（可选调用）
+    // ============================================================
+
+    /**
+     * 订阅全局通用状态（loading / error / success）
+     */
+    protected void observeCommonState() {
+        if (getViewLifecycleOwner() == null) return;
+
+        viewModel.getLoadingLiveData().observe(getViewLifecycleOwner(), loading -> {
+            if (loading != null && loading) {
+                showLoading();
+            } else {
+                hideLoading();
+            }
+        });
+
+        viewModel.getErrorLiveData().observe(getViewLifecycleOwner(), error -> {
+            if (error != null && !error.isEmpty()) {
+                showError(error);
+            }
+        });
+
+        viewModel.getSuccessLiveData().observe(getViewLifecycleOwner(), msg -> {
+            if (msg != null && !msg.isEmpty()) {
+                showSuccess(msg);
+            }
+        });
+    }
+
+    // ============================================================
+    // UI 辅助方法（子类可重写）
+    // ============================================================
+
+    protected void showLoading() {
+        // 可替换为自定义 LoadingDialog
+    }
+
+    protected void hideLoading() {
+        // LoadingDialog.dismiss();
+    }
+
+    protected void showError(String message) {
+        if (getContext() != null) {
+            Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    protected void showSuccess(String message) {
+        if (getContext() != null) {
+            Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    // ============================================================
+    // 工具方法
+    // ============================================================
+
+    /**
+     * 获取 Activity 级别的 ViewModel（用于 Fragment 间通信）
+     */
+    protected <T extends ViewModel> T getActivityViewModel(Class<T> vmClass) {
+        return new ViewModelProvider(requireActivity()).get(vmClass);
+    }
+
+    // ============================================================
+    // 禁止使用的模式
+    // ============================================================
+
+    /**
+     * @deprecated 禁止在 Fragment 中直接使用 getActivity() 强转
+     *             → 应通过 ViewModel 或接口回调通信
+     */
+    @Deprecated
+    protected <T> T getActivityAs(Class<T> clazz) {
+        throw new UnsupportedOperationException("禁止强转 Activity，请使用 ViewModel 通信");
+    }
+}
+```
+
+---
+
+## 四、使用示例
+
+### 4.1 无需 Context 的 ViewModel（继承 BaseViewModel）
+
+```java
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+import io.reactivex.disposables.Disposable;
+
+public class UserViewModel extends BaseViewModel {
+
+    private final MutableLiveData<User> userLiveData = new MutableLiveData<>();
+    private final UserRepository repository;
+
+    public UserViewModel(UserRepository repository) {
+        this.repository = repository;
+    }
+
+    public LiveData<User> getUser() {
+        return userLiveData;
+    }
+
+    public void loadUser(String userId) {
+        setLoading(true);
+
+        Disposable disposable = repository.fetchUser(userId)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(
+                        user -> {
+                            userLiveData.setValue(user);
+                            setSuccess("加载成功");
+                            setLoading(false);
+                        },
+                        throwable -> {
+                            setError(throwable.getMessage());
+                            setLoading(false);
+                        }
+                );
+
+        // 必须添加到 disposables 中，确保 ViewModel 销毁时自动取消
+        addDisposable(disposable);
+    }
+
+    public void updateUserName(String userId, String newName) {
+        setLoading(true);
+
+        Disposable disposable = repository.updateName(userId, newName)
+                .andThen(repository.fetchUser(userId))  // 更新后刷新数据
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(
+                        user -> {
+                            userLiveData.setValue(user);
+                            setSuccess("更新成功");
+                            setLoading(false);
+                        },
+                        throwable -> {
+                            setError(throwable.getMessage());
+                            setLoading(false);
+                        }
+                );
+
+        addDisposable(disposable);
+    }
+}
+```
+
+> **说明：** `UserRepository` 的方法返回 `Single<User>` / `Completable` 等 RxJava 类型，
+> 由 ViewModel 通过 `disposables` 统一管理订阅生命周期。
+
+---
+
+### 4.2 需要 Context 的 ViewModel（继承 BaseAndroidViewModel）
+
+```java
+import android.app.Application;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
+import io.reactivex.disposables.Disposable;
+
+/**
+ * 需要读取 SharedPreferences / Resources 等系统服务时使用 BaseAndroidViewModel
+ */
+public class SettingsViewModel extends BaseAndroidViewModel {
+
+    private final MutableLiveData<String> appVersionLiveData = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> darkModeLiveData = new MutableLiveData<>();
+    private final SettingsRepository repository;
+
+    public SettingsViewModel(Application application, SettingsRepository repository) {
+        super(application);
+        this.repository = repository;
+    }
+
+    public LiveData<String> getAppVersion() {
+        return appVersionLiveData;
+    }
+
+    public LiveData<Boolean> getDarkMode() {
+        return darkModeLiveData;
+    }
+
+    /**
+     * 读取 Application Context 中的 SharedPreferences
+     */
+    public void loadSettings() {
+        setLoading(true);
+
+        // 通过 getAppContext() 安全获取 Application Context
+        String version = getAppContext()
+                .getPackageManager()
+                .getPackageInfo(getAppContext().getPackageName(), 0)
+                .versionName;
+        appVersionLiveData.postValue(version);
+
+        // 从 SharedPreferences 读取设置
+        boolean darkMode = getAppContext()
+                .getSharedPreferences("settings", Application.MODE_PRIVATE)
+                .getBoolean("dark_mode", false);
+        darkModeLiveData.postValue(darkMode);
+
+        setLoading(false);
+    }
+
+    /**
+     * 保存设置到 SharedPreferences + 远程同步
+     */
+    public void saveDarkMode(boolean enabled) {
+        setLoading(true);
+
+        // 本地持久化（使用 Application Context，安全）
+        getAppContext()
+                .getSharedPreferences("settings", Application.MODE_PRIVATE)
+                .edit()
+                .putBoolean("dark_mode", enabled)
+                .apply();
+
+        // 远程同步
+        Disposable disposable = repository.syncDarkMode(enabled)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(
+                        () -> {
+                            darkModeLiveData.setValue(enabled);
+                            setSuccess("设置已保存");
+                            setLoading(false);
+                        },
+                        throwable -> {
+                            setError(throwable.getMessage());
+                            setLoading(false);
+                        }
+                );
+
+        addDisposable(disposable);
+    }
+}
+```
+
+> **关键点：**  
+> - 构造函数必须接收 `Application` 并传给 `super(application)`  
+> - 通过 `getAppContext()` 获取 Context，绝不使用 Activity Context  
+> - 其余 RxJava 订阅管理与 `BaseViewModel` 完全一致
+
+### 4.3 具体 Activity（使用 BaseViewModel）
+
+```java
+public class UserProfileActivity extends BaseMvvmActivity<UserViewModel, ActivityUserProfileBinding> {
+
+    @Override
+    protected UserViewModel createViewModel() {
+        UserRepository repository = new UserRepository();
+        return new ViewModelProvider(this, new ViewModelProvider.Factory() {
+            @Override
+            public <T extends ViewModel> T create(Class<T> modelClass) {
+                return (T) new UserViewModel(repository);
+            }
+        }).get(UserViewModel.class);
+    }
+
+    @Override
+    protected ActivityUserProfileBinding createViewBinding() {
+        return ActivityUserProfileBinding.inflate(getLayoutInflater());
+    }
+
+    @Override
+    protected void initView() {
+        binding.btnRefresh.setOnClickListener(v -> {
+            viewModel.loadUser("123");
+        });
+
+        binding.btnUpdate.setOnClickListener(v -> {
+            viewModel.updateUserName("123", "新名字");
+        });
+    }
+
+    @Override
+    protected void observeViewModel() {
+        observeCommonState();
+
+        viewModel.getUser().observe(this, user -> {
+            if (user != null) {
+                binding.tvName.setText(user.getName());
+                binding.tvAge.setText(String.valueOf(user.getAge()));
+            }
+        });
+    }
+}
+```
+
+### 4.4 具体 Fragment
+
+```java
+public class UserDetailFragment extends BaseMvvmFragment<UserViewModel, FragmentUserDetailBinding> {
+
+    @Override
+    protected UserViewModel createViewModel() {
+        UserRepository repository = new UserRepository();
+        return new ViewModelProvider(requireActivity(), new ViewModelProvider.Factory() {
+            @Override
+            public <T extends ViewModel> T create(Class<T> modelClass) {
+                return (T) new UserViewModel(repository);
+            }
+        }).get(UserViewModel.class);
+    }
+
+    @Override
+    protected FragmentUserDetailBinding createViewBinding(LayoutInflater inflater, ViewGroup container) {
+        return FragmentUserDetailBinding.inflate(inflater, container, false);
+    }
+
+    @Override
+    protected void initView() {
+        binding.tvTitle.setText("用户详情");
+    }
+
+    @Override
+    protected void observeViewModel() {
+        observeCommonState();
+
+        viewModel.getUser().observe(getViewLifecycleOwner(), user -> {
+            if (user != null) {
+                binding.tvEmail.setText(user.getEmail());
+            }
+        });
+    }
+}
+```
+
+### 4.5 具体 Activity（使用 BaseAndroidViewModel）
+
+```java
+public class SettingsActivity extends BaseMvvmActivity<SettingsViewModel, ActivitySettingsBinding> {
+
+    @Override
+    protected SettingsViewModel createViewModel() {
+        SettingsRepository repository = new SettingsRepository();
+        // BaseAndroidViewModel 需要传入 Application
+        return new ViewModelProvider(this, new ViewModelProvider.Factory() {
+            @Override
+            public <T extends ViewModel> T create(Class<T> modelClass) {
+                return (T) new SettingsViewModel(getApplication(), repository);
+            }
+        }).get(SettingsViewModel.class);
+    }
+
+    @Override
+    protected ActivitySettingsBinding createViewBinding() {
+        return ActivitySettingsBinding.inflate(getLayoutInflater());
+    }
+
+    @Override
+    protected void initView() {
+        binding.switchDarkMode.setOnCheckedChangeListener((buttonView, isChecked) -> {
+            viewModel.saveDarkMode(isChecked);
+        });
+    }
+
+    @Override
+    protected void observeViewModel() {
+        observeCommonState();
+
+        viewModel.getAppVersion().observe(this, version -> {
+            binding.tvVersion.setText("版本：" + version);
+        });
+
+        viewModel.getDarkMode().observe(this, enabled -> {
+            binding.switchDarkMode.setChecked(enabled != null && enabled);
+        });
+    }
+
+    @Override
+    protected void onLoadData() {
+        viewModel.loadSettings();
+    }
+}
+```
+
+---
+
+## 五、禁止规范（AI Agent 必须遵守）
+
+### 5.1 ❌ ViewModel 层禁止
+
+| 禁止行为 | 原因 |
+|----------|------|
+| 持有 Activity / Fragment / View 引用 | 导致内存泄漏，ViewModel 生命周期长于 View |
+| 在 BaseViewModel 中持有任何 Context 引用 | BaseViewModel 不应依赖 Context，如需 Context 应改用 BaseAndroidViewModel |
+| 在 BaseAndroidViewModel 中使用 Activity Context | 只能使用 Application Context（通过 getAppContext()），Activity Context 会泄漏 |
+| 直接进行网络请求（如 new OkHttpCall()） | 应委托给 Repository |
+| 直接操作数据库（如 Room DAO 调用） | 应委托给 Repository |
+| 弹 Toast / Dialog / Snackbar | ViewModel 不应感知 UI 组件 |
+| 手动创建 Thread / Executor / AsyncTask | 必须使用 RxJava + CompositeDisposable |
+| 发起 RxJava 请求后不 add 到 disposables | 导致内存泄漏，ViewModel 销毁后任务仍在执行 |
+| 在 onCleared 之外手动调用 `disposables.clear()` | 应由基类统一管理，子类不应干预销毁时机 |
+| 暴露 MutableLiveData 给外部 | 应只暴露 LiveData（不可变） |
+| 在 ViewModel 中写死 Context 相关资源（R.string.xxx） | 降低可测试性，应通过 Repository 或资源 ID 传递 |
+| 创建独立的 Disposable 而不加入 CompositeDisposable | 必须统一通过 `addDisposable()` 管理 |
+
+### 5.2 ❌ View 层（Activity / Fragment）禁止
+
+| 禁止行为 | 原因 |
+|----------|------|
+| 直接调用 Retrofit / OkHttp / Room | 破坏分层架构 |
+| 持有 MutableLiveData 引用并直接 setValue | 破坏单向数据流 |
+| 在 Activity/Fragment 中写业务逻辑 | 降低可维护性和可测试性 |
+| 使用 findViewById 替代 ViewBinding | 低效且易出错 |
+| 在 onDestroyView 之后访问 binding | 导致空指针 |
+| 使用静态变量存储 View / Context | 严重内存泄漏 |
+| 在 Fragment 中通过 getActivity() 强转调用 Activity 方法 | 应使用 ViewModel 或接口回调 |
+
+### 5.3 ❌ 数据层禁止
+
+| 禁止行为 | 原因 |
+|----------|------|
+| Repository 直接持有 ViewModel 引用 | 数据层不应感知 UI 层 |
+| Model 中混杂业务逻辑 | Model 只做数据定义和存储 |
+| 在 Repository 中弹 Toast / Dialog | 数据层不应感知 UI |
+
+---
+
+## 六、代码生成检查清单
+
+AI Agent 在生成 MVVM 相关代码时，必须逐项确认：
+
+- [ ] ViewModel 是否继承 `BaseViewModel` 或 `BaseAndroidViewModel`？
+- [ ] 需要 Context 的 ViewModel 是否改为继承 `BaseAndroidViewModel`（而非在 BaseViewModel 中持有 Context）？
+- [ ] Activity 是否继承 `BaseMvvmActivity`？
+- [ ] Fragment 是否继承 `BaseMvvmFragment`？
+- [ ] ViewModel 中是否没有任何 View / Activity Context 引用？
+- [ ] BaseAndroidViewModel 中是否只通过 `getAppContext()` 获取 Application Context？
+- [ ] 所有数据获取是否通过 Repository？
+- [ ] View 层是否只通过 LiveData 观察数据？
+- [ ] View 层是否只调用 ViewModel 方法，不直接操作数据？
+- [ ] MutableLiveData 是否声明为 `private`，对外只暴露 `LiveData`？
+- [ ] Fragment 的 `onDestroyView` 中是否置空了 binding？
+- [ ] 是否没有使用 `findViewById`？
+- [ ] 所有 RxJava 订阅是否通过 `addDisposable()` 添加到 `disposables` 中？
+- [ ] ViewModel 中是否没有手动创建 Thread / Executor / AsyncTask？
+- [ ] Repository 方法返回类型是否为 RxJava 类型（Single / Observable / Completable / Maybe）？
+
+---
+
+## 七、目录结构建议
+
+```
+app/src/main/java/com/example/
+├── base/
+│   ├── BaseViewModel.java          (无需 Context 时继承)
+│   ├── BaseAndroidViewModel.java   (需要 Context 时继承)
+│   ├── BaseMvvmActivity.java
+│   └── BaseMvvmFragment.java
+├── model/
+│   ├── User.java
+│   └── ApiResponse.java
+├── repository/
+│   ├── UserRepository.java
+│   ├── SettingsRepository.java
+│   └── RemoteDataSource.java
+├── viewmodel/
+│   ├── UserViewModel.java           (extends BaseViewModel)
+│   ├── SettingsViewModel.java      (extends BaseAndroidViewModel)
+│   └── HomeViewModel.java
+├── view/
+│   ├── activity/
+│   │   ├── UserProfileActivity.java
+│   │   └── SettingsActivity.java
+│   └── fragment/
+│       └── UserDetailFragment.java
+└── network/
+    ├── ApiService.java
+    └── RetrofitClient.java
+```
+
+---
+
+## 八、所需依赖（build.gradle）
+
+```groovy
+dependencies {
+    // Jetpack ViewModel & LiveData
+    implementation 'androidx.lifecycle:lifecycle-viewmodel:2.6.2'
+    implementation 'androidx.lifecycle:lifecycle-livedata:2.6.2'
+
+    // RxJava 3
+    implementation 'io.reactivex.rxjava3:rxjava:3.1.8'
+    implementation 'io.reactivex.rxjava3:rxandroid:3.0.2'
+
+    // Retrofit + RxJava adapter（如网络层使用 Retrofit）
+    implementation 'com.squareup.retrofit2:adapter-rxjava3:2.9.0'
+
+    // ViewBinding（在 android {} 块中启用）
+    // buildFeatures { viewBinding true }
+}
+```
+
+---
+
+> **最后更新：** 2026-08-21  
+> **维护者：** Android Team  
+> **适用版本：** Android SDK 21+ / Jetpack ViewModel 2.5+ / RxJava 3.x / ViewBinding enabled
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddActivity.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddActivity.java
index 6f15a98..dcbf083 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddActivity.java
@@ -45,8 +45,8 @@ public class AlarmAddActivity extends BaseMvvmActivity<AlarmAddViewModel, Activi
     }
 
     @Override
-    protected void initData() {
-        mViewModel.mSaveResult.observe(this, success -> {
+    protected void observeViewModel() {
+        mViewModel.getSaveResult().observe(this, success -> {
             if (success) {
                 TipDialog.show("添加成功", WaitDialog.TYPE.SUCCESS);
                 finish();
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddViewModel.java
index dad773b..7d26914 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/add/AlarmAddViewModel.java
@@ -1,40 +1,38 @@
 package com.ttstd.dialer.activity.alarm.add;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.alarmclock.AlarmManagerHelper;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityAlarmAddBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.alarm.AlarmInfo;
 import com.ttstd.dialer.db.alarm.AlarmRepository;
 import com.ttstd.dialer.utils.Logger;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Completable;
 import io.reactivex.rxjava3.core.Single;
-import io.reactivex.rxjava3.core.SingleObserver;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class AlarmAddViewModel extends BaseViewModel<ActivityAlarmAddBinding, ActivityEvent> {
+public class AlarmAddViewModel extends BaseAndroidViewModel {
     private static final String TAG = "AlarmAddViewModel";
-    private AlarmRepository mRepository;
+    private final AlarmRepository mRepository;
 
     private int mVolume = 80;
     private int mSnoozeInterval = 5;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = new AlarmRepository(context);
+    private final MutableLiveData<Boolean> mSaveResult = new MutableLiveData<>();
+
+    public AlarmAddViewModel(Application application) {
+        super(application);
+        mRepository = new AlarmRepository(application);
     }
 
-    public MutableLiveData<Boolean> mSaveResult = new MutableLiveData<>();
+    public LiveData<Boolean> getSaveResult() {
+        return mSaveResult;
+    }
 
     public void saveAlarm(int hour, int minute, String label, boolean vibration, int repeatType) {
         AlarmInfo alarmInfo = new AlarmInfo();
@@ -47,43 +45,31 @@ public class AlarmAddViewModel extends BaseViewModel<ActivityAlarmAddBinding, Ac
         alarmInfo.setVolume(mVolume);
         alarmInfo.setSnoozeInterval(mSnoozeInterval);
 
-        Single.fromCallable(() -> mRepository.insertAlarm(alarmInfo))
+        addDisposable(Single.fromCallable(() -> mRepository.insertAlarm(alarmInfo))
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new SingleObserver<Long>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.d(TAG, "开始保存闹钟");
-                    }
+                .subscribe(aLong -> {
+                            Logger.d(TAG, "闹钟保存成功，ID: " + aLong);
+                            alarmInfo.setId(aLong.intValue());
 
-                    @Override
-                    public void onSuccess(Long aLong) {
-                        Logger.d(TAG, "闹钟保存成功，ID: " + aLong);
-                        alarmInfo.setId(aLong.intValue());
+                            // 计算并设置系统闹钟
+                            long nextTime = AlarmManagerHelper.calculateNextTime(alarmInfo);
+                            alarmInfo.setNextTriggerTime(nextTime);
 
-                        // 计算并设置系统闹钟
-                        long nextTime = AlarmManagerHelper.calculateNextTime(alarmInfo);
-                        alarmInfo.setNextTriggerTime(nextTime);
-
-                        // 更新数据库中的下次触发时间
-                        Completable.fromAction(() -> mRepository.updateNextTriggerTime(alarmInfo.getId(), nextTime))
-                                .subscribeOn(Schedulers.io())
-                                .subscribe(() -> {
-                                    AlarmManagerHelper.setExactAlarm(getSafeContext(), alarmInfo.getId(), nextTime);
-                                    mSaveResult.postValue(true);
-                                }, throwable -> {
-                                    Logger.e(TAG, "更新下次触发时间失败: " + throwable.getMessage());
-                                    mSaveResult.postValue(true); // 依然认为保存成功，只是系统闹钟可能没设好
-                                });
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "闹钟保存失败: " + e.getMessage());
-                        mSaveResult.setValue(false);
-                    }
-
-                });
+                            // 更新数据库中的下次触发时间
+                            addDisposable(Completable.fromAction(() -> mRepository.updateNextTriggerTime(alarmInfo.getId(), nextTime))
+                                    .subscribeOn(Schedulers.io())
+                                    .subscribe(() -> {
+                                        AlarmManagerHelper.setExactAlarm(getAppContext(), alarmInfo.getId(), nextTime);
+                                        mSaveResult.postValue(true);
+                                    }, throwable -> {
+                                        Logger.e(TAG, "更新下次触发时间失败: " + throwable.getMessage());
+                                        mSaveResult.postValue(true); // 依然认为保存成功，只是系统闹钟可能没设好
+                                    }));
+                        },
+                        throwable -> {
+                            Logger.e(TAG, "闹钟保存失败: " + throwable.getMessage());
+                            mSaveResult.setValue(false);
+                        }));
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditActivity.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditActivity.java
index 52f798b..4d767c7 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditActivity.java
@@ -51,8 +51,8 @@ public class AlarmEditActivity extends BaseMvvmActivity<AlarmEditViewModel, Acti
     }
 
     @Override
-    protected void initData() {
-        mViewModel.mUpdateResult.observe(this, success -> {
+    protected void observeViewModel() {
+        mViewModel.getUpdateResult().observe(this, success -> {
             if (success) {
                 TipDialog.show("保存成功", WaitDialog.TYPE.SUCCESS);
                 finish();
@@ -61,7 +61,7 @@ public class AlarmEditActivity extends BaseMvvmActivity<AlarmEditViewModel, Acti
             }
         });
 
-        mViewModel.mDeleteResult.observe(this, success -> {
+        mViewModel.getDeleteResult().observe(this, success -> {
             if (success) {
                 TipDialog.show("删除成功", WaitDialog.TYPE.SUCCESS);
                 finish();
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditViewModel.java
index ad0a9ed..745036f 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/edit/AlarmEditViewModel.java
@@ -1,40 +1,42 @@
 package com.ttstd.dialer.activity.alarm.edit;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.alarmclock.AlarmManagerHelper;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityAlarmEditBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.alarm.AlarmInfo;
 import com.ttstd.dialer.db.alarm.AlarmRepository;
 import com.ttstd.dialer.utils.Logger;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Completable;
-import io.reactivex.rxjava3.core.CompletableObserver;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class AlarmEditViewModel extends BaseViewModel<ActivityAlarmEditBinding, ActivityEvent> {
+public class AlarmEditViewModel extends BaseAndroidViewModel {
     private static final String TAG = "AlarmEditViewModel";
-    private AlarmRepository mRepository;
+    private final AlarmRepository mRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = new AlarmRepository(context);
-    }
-
-    public MutableLiveData<Boolean> mUpdateResult = new MutableLiveData<>();
-    public MutableLiveData<Boolean> mDeleteResult = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> mUpdateResult = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> mDeleteResult = new MutableLiveData<>();
 
     private AlarmInfo mOriginalAlarm;
 
+    public AlarmEditViewModel(Application application) {
+        super(application);
+        mRepository = new AlarmRepository(application);
+    }
+
+    public LiveData<Boolean> getUpdateResult() {
+        return mUpdateResult;
+    }
+
+    public LiveData<Boolean> getDeleteResult() {
+        return mDeleteResult;
+    }
+
     public void loadAlarmInfo(AlarmInfo alarmInfo) {
         this.mOriginalAlarm = alarmInfo;
     }
@@ -57,58 +59,36 @@ public class AlarmEditViewModel extends BaseViewModel<ActivityAlarmEditBinding,
             alarmInfo.setNextTriggerTime(nextTime);
         }
 
-        Completable.fromAction(() -> mRepository.updateAlarm(alarmInfo))
+        addDisposable(Completable.fromAction(() -> mRepository.updateAlarm(alarmInfo))
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new CompletableObserver() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.d(TAG, "开始更新闹钟");
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "闹钟更新失败: " + e.getMessage());
-                        mUpdateResult.setValue(false);
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.d(TAG, "更新闹钟完成");
-                        if (alarmInfo.isEnabled()) {
-                            AlarmManagerHelper.setExactAlarm(getSafeContext(), alarmInfo.getId(), alarmInfo.getNextTriggerTime());
-                        } else {
-                            AlarmManagerHelper.cancelAlarm(getSafeContext(), alarmInfo.getId());
-                        }
-                        mUpdateResult.setValue(true);
-                    }
-                });
+                .subscribe(() -> {
+                            Logger.d(TAG, "更新闹钟完成");
+                            if (alarmInfo.isEnabled()) {
+                                AlarmManagerHelper.setExactAlarm(getAppContext(), alarmInfo.getId(), alarmInfo.getNextTriggerTime());
+                            } else {
+                                AlarmManagerHelper.cancelAlarm(getAppContext(), alarmInfo.getId());
+                            }
+                            mUpdateResult.setValue(true);
+                        },
+                        throwable -> {
+                            Logger.e(TAG, "闹钟更新失败: " + throwable.getMessage());
+                            mUpdateResult.setValue(false);
+                        }));
     }
 
     public void deleteAlarm(AlarmInfo alarmInfo) {
-        Completable.fromAction(() -> mRepository.deleteAlarm(alarmInfo))
+        addDisposable(Completable.fromAction(() -> mRepository.deleteAlarm(alarmInfo))
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new CompletableObserver() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.d(TAG, "开始删除闹钟");
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "闹钟删除失败: " + e.getMessage());
-                        mDeleteResult.setValue(false);
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.d(TAG, "删除闹钟完成");
-                        AlarmManagerHelper.cancelAlarm(getSafeContext(), alarmInfo.getId());
-                        mDeleteResult.setValue(true);
-                    }
-                });
+                .subscribe(() -> {
+                            Logger.d(TAG, "删除闹钟完成");
+                            AlarmManagerHelper.cancelAlarm(getAppContext(), alarmInfo.getId());
+                            mDeleteResult.setValue(true);
+                        },
+                        throwable -> {
+                            Logger.e(TAG, "闹钟删除失败: " + throwable.getMessage());
+                            mDeleteResult.setValue(false);
+                        }));
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListActivity.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListActivity.java
index 37a8dc1..0bccc17 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListActivity.java
@@ -109,8 +109,8 @@ public class AlarmListActivity extends BaseMvvmActivity<AlarmListViewModel, Acti
     }
 
     @Override
-    protected void initData() {
-        mViewModel.mAlarmListData.observe(this, new Observer<List<AlarmInfo>>() {
+    protected void observeViewModel() {
+        mViewModel.getAlarmListData().observe(this, new Observer<List<AlarmInfo>>() {
             @Override
             public void onChanged(List<AlarmInfo> alarmInfos) {
                 mViewDataBinding.swipeRefreshLayout.setRefreshing(false);
@@ -121,7 +121,7 @@ public class AlarmListActivity extends BaseMvvmActivity<AlarmListViewModel, Acti
             }
         });
 
-        mViewModel.mDeleteLiveData.observe(this, new Observer<Boolean>() {
+        mViewModel.getDeleteLiveData().observe(this, new Observer<Boolean>() {
             @Override
             public void onChanged(Boolean success) {
                 if (success) {
diff --git a/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListViewModel.java
index c05bdef..d3cf4ed 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/alarm/list/AlarmListViewModel.java
@@ -1,14 +1,12 @@
 package com.ttstd.dialer.activity.alarm.list;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.alarmclock.AlarmManagerHelper;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityAlarmListBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.alarm.AlarmInfo;
 import com.ttstd.dialer.db.alarm.AlarmRepository;
 import com.ttstd.dialer.utils.Logger;
@@ -16,111 +14,76 @@ import com.ttstd.dialer.utils.Logger;
 import java.util.List;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Completable;
-import io.reactivex.rxjava3.core.CompletableObserver;
 import io.reactivex.rxjava3.core.Single;
-import io.reactivex.rxjava3.core.SingleObserver;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class AlarmListViewModel extends BaseViewModel<ActivityAlarmListBinding, ActivityEvent> {
+public class AlarmListViewModel extends BaseAndroidViewModel {
     private static final String TAG = "AlarmListViewModel";
-    private AlarmRepository mRepository;
+    private final AlarmRepository mRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = new AlarmRepository(context);
+    private final MutableLiveData<List<AlarmInfo>> mAlarmListData = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> mDeleteLiveData = new MutableLiveData<>();
+
+    public AlarmListViewModel(Application application) {
+        super(application);
+        mRepository = new AlarmRepository(application);
     }
 
-    public MutableLiveData<List<AlarmInfo>> mAlarmListData = new MutableLiveData<>();
+    public LiveData<List<AlarmInfo>> getAlarmListData() {
+        return mAlarmListData;
+    }
+
+    public LiveData<Boolean> getDeleteLiveData() {
+        return mDeleteLiveData;
+    }
 
     public void getAllAlarms() {
-        Single.fromCallable(() -> mRepository.getAllAlarms())
+        addDisposable(Single.fromCallable(() -> mRepository.getAllAlarms())
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new SingleObserver<List<AlarmInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.d(TAG, "开始加载闹钟列表");
-                    }
-
-                    @Override
-                    public void onSuccess(List<AlarmInfo> alarmInfos) {
-                        Logger.d(TAG, "加载闹钟列表成功，数量: " + alarmInfos.size());
-                        mAlarmListData.setValue(alarmInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "加载闹钟列表失败: " + e.getMessage());
-                        mAlarmListData.setValue(null);
-                    }
-                });
+                .subscribe(alarmInfos -> {
+                            Logger.d(TAG, "加载闹钟列表成功，数量: " + alarmInfos.size());
+                            mAlarmListData.setValue(alarmInfos);
+                        },
+                        throwable -> {
+                            Logger.e(TAG, "加载闹钟列表失败: " + throwable.getMessage());
+                            mAlarmListData.setValue(null);
+                        }));
     }
 
     public void updateAlarmEnabled(AlarmInfo alarmInfo) {
-        Completable.fromAction(() -> {
+        addDisposable(Completable.fromAction(() -> {
                     mRepository.updateAlarmEnabled(alarmInfo.getId(), alarmInfo.isEnabled());
                     if (alarmInfo.isEnabled()) {
                         long nextTime = AlarmManagerHelper.calculateNextTime(alarmInfo);
                         alarmInfo.setNextTriggerTime(nextTime);
                         mRepository.updateNextTriggerTime(alarmInfo.getId(), nextTime);
-                        AlarmManagerHelper.setExactAlarm(getSafeContext(), alarmInfo.getId(), nextTime);
+                        AlarmManagerHelper.setExactAlarm(getAppContext(), alarmInfo.getId(), nextTime);
                         Logger.d(TAG, "updateAlarmEnabled: 闹钟状态开启");
                     } else {
-                        AlarmManagerHelper.cancelAlarm(getSafeContext(), alarmInfo.getId());
+                        AlarmManagerHelper.cancelAlarm(getAppContext(), alarmInfo.getId());
                         Logger.d(TAG, "updateAlarmEnabled: 闹钟状态关闭");
-
                     }
                 })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new CompletableObserver() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.d(TAG, "updateAlarmEnabled: 更新闹钟状态成功");
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "updateAlarmEnabled: 更新闹钟状态失败: " + e.getMessage());
-                    }
-                });
+                .subscribe(() -> Logger.d(TAG, "updateAlarmEnabled: 更新闹钟状态成功"),
+                        throwable -> Logger.e(TAG, "updateAlarmEnabled: 更新闹钟状态失败: " + throwable.getMessage())));
     }
 
-    public MutableLiveData<Boolean> mDeleteLiveData = new MutableLiveData<>();
-
     public void deleteAlarm(AlarmInfo alarmInfo) {
-        Completable.fromAction(() -> mRepository.deleteAlarm(alarmInfo))
+        addDisposable(Completable.fromAction(() -> mRepository.deleteAlarm(alarmInfo))
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
-                .subscribe(new CompletableObserver() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.d(TAG, "开始删除闹钟");
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e(TAG, "删除闹钟失败: " + e.getMessage());
-                        mDeleteLiveData.setValue(false);
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.d(TAG, "删除闹钟完成");
-                        AlarmManagerHelper.cancelAlarm(getSafeContext(), alarmInfo.getId());
-                        mDeleteLiveData.setValue(true);
-                    }
-                });
+                .subscribe(() -> {
+                            Logger.d(TAG, "删除闹钟完成");
+                            AlarmManagerHelper.cancelAlarm(getAppContext(), alarmInfo.getId());
+                            mDeleteLiveData.setValue(true);
+                        },
+                        throwable -> {
+                            Logger.e(TAG, "删除闹钟失败: " + throwable.getMessage());
+                            mDeleteLiveData.setValue(false);
+                        }));
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/app/AppListActivity.java b/app/src/main/java/com/ttstd/dialer/activity/app/AppListActivity.java
index b383326..b373ffb 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/app/AppListActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/app/AppListActivity.java
@@ -159,13 +159,13 @@ public class AppListActivity extends BaseMvvmActivity<AppListViewModel, Activity
 
 
     @Override
-    protected void initData() {
+    protected void observeViewModel() {
         LiveDataBus.get().<String>on(LiveDataAction.ACTION_UPDATE_APPS)
                 .observe(this, event -> {
                     mViewModel.getDbAppList();
                     mViewModel.getHotseatApp();
                 });
-        mViewModel.mHotseatAppData.observe(this, new Observer<List<AppInfo>>() {
+        mViewModel.getHotseatAppData().observe(this, new Observer<List<AppInfo>>() {
             @Override
             public void onChanged(List<AppInfo> appInfos) {
                 if (appInfos != null && !appInfos.isEmpty()) {
@@ -177,18 +177,15 @@ public class AppListActivity extends BaseMvvmActivity<AppListViewModel, Activity
                 mAppGridAdapter.setAppInfos(appInfos);
             }
         });
-        mViewModel.getHotseatApp();
 
-        mViewModel.mDesktopSortAppData.observe(this, new Observer<List<AppInfo>>() {
+        mViewModel.getDesktopSortAppData().observe(this, new Observer<List<AppInfo>>() {
             @Override
             public void onChanged(List<AppInfo> appInfos) {
                 mMoreAppAdapter.setAppInfos(appInfos);
             }
         });
 
-        mViewModel.getDbAppList();
-
-        mViewModel.mAppUpdateData.observe(this, new Observer<Integer>() {
+        mViewModel.getAppUpdateData().observe(this, new Observer<Integer>() {
             @Override
             public void onChanged(Integer integer) {
                 if (integer > 0) {
@@ -198,7 +195,12 @@ public class AppListActivity extends BaseMvvmActivity<AppListViewModel, Activity
                 mViewModel.getAllApp();
             }
         });
+    }
 
+    @Override
+    protected void onLoadData() {
+        mViewModel.getHotseatApp();
+        mViewModel.getDbAppList();
         mViewModel.getAllApp();
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/activity/app/AppListViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/app/AppListViewModel.java
index f795545..802355d 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/app/AppListViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/app/AppListViewModel.java
@@ -1,13 +1,11 @@
 package com.ttstd.dialer.activity.app;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityAppListBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.app.AppInfo;
 import com.ttstd.dialer.db.app.AppRepository;
 import com.ttstd.dialer.manager.AppManager;
@@ -17,132 +15,90 @@ import java.util.List;
 import java.util.concurrent.Callable;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Observable;
-import io.reactivex.rxjava3.core.Observer;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class AppListViewModel extends BaseViewModel<ActivityAppListBinding, ActivityEvent> {
+public class AppListViewModel extends BaseAndroidViewModel {
     private static final String TAG = "AppListViewModel";
 
-    private AppRepository mAppRepository;
+    private final AppRepository mAppRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mAppRepository = new AppRepository(context);
+    private final MutableLiveData<List<AppInfo>> mAllAppData = new MutableLiveData<>();
+    private final MutableLiveData<List<AppInfo>> mHotseatAppData = new MutableLiveData<>();
+    private final MutableLiveData<List<AppInfo>> mDesktopSortAppData = new MutableLiveData<>();
+    private final MutableLiveData<Integer> mAppUpdateData = new MutableLiveData<>();
+
+    public AppListViewModel(Application application) {
+        super(application);
+        mAppRepository = new AppRepository(application);
     }
 
-    public MutableLiveData<List<AppInfo>> mAllAppData = new MutableLiveData<>();
+    public LiveData<List<AppInfo>> getAllAppData() {
+        return mAllAppData;
+    }
+
+    public LiveData<List<AppInfo>> getHotseatAppData() {
+        return mHotseatAppData;
+    }
+
+    public LiveData<List<AppInfo>> getDesktopSortAppData() {
+        return mDesktopSortAppData;
+    }
+
+    public LiveData<Integer> getAppUpdateData() {
+        return mAppUpdateData;
+    }
 
     public void getAllApp() {
-        Observable.fromCallable(new Callable<List<AppInfo>>() {
+        addDisposable(Observable.fromCallable(new Callable<List<AppInfo>>() {
                     @Override
                     public List<AppInfo> call() throws Exception {
                         return mAppRepository.getAllApp();
                     }
-                }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+                })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<AppInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("getAllApp", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull List<AppInfo> appInfos) {
-                        Logger.e("getAllApp", "onNext: " + appInfos);
-                        mAllAppData.setValue(appInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("getAllApp", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("getAllApp", "onComplete: ");
-                    }
-                });
+                .subscribe(appInfos -> {
+                            Logger.e("getAllApp", "onNext: " + appInfos);
+                            mAllAppData.setValue(appInfos);
+                        },
+                        throwable -> Logger.e("getAllApp", "onError: " + throwable.getMessage())));
     }
 
-    public MutableLiveData<List<AppInfo>> mHotseatAppData = new MutableLiveData<>();
-
     public void getHotseatApp() {
-        Observable.fromCallable(new Callable<List<AppInfo>>() {
+        addDisposable(Observable.fromCallable(new Callable<List<AppInfo>>() {
                     @Override
                     public List<AppInfo> call() throws Exception {
                         return mAppRepository.getHotseatApp();
                     }
-                }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+                })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<AppInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("getHotseatApp", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull List<AppInfo> appInfos) {
-                        Logger.e("getHotseatApp", "onNext: " + appInfos);
-                        mHotseatAppData.setValue(appInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("getHotseatApp", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("getHotseatApp", "onComplete: ");
-                    }
-                });
+                .subscribe(appInfos -> {
+                            Logger.e("getHotseatApp", "onNext: " + appInfos);
+                            mHotseatAppData.setValue(appInfos);
+                        },
+                        throwable -> Logger.e("getHotseatApp", "onError: " + throwable.getMessage())));
     }
 
-    public MutableLiveData<List<AppInfo>> mDesktopSortAppData = new MutableLiveData<>();
-
     public void getDbAppList() {
-        Observable.fromCallable(new Callable<List<AppInfo>>() {
+        addDisposable(Observable.fromCallable(new Callable<List<AppInfo>>() {
                     @Override
                     public List<AppInfo> call() throws Exception {
                         return mAppRepository.getInsideApp();
                     }
-                }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+                })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<AppInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("getDbAppList", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull List<AppInfo> appInfos) {
-                        Logger.e("getDbAppList", "onNext: " + appInfos);
-                        mDesktopSortAppData.setValue(appInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("getDbAppList", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("getDbAppList", "onComplete: ");
-                    }
-                });
+                .subscribe(appInfos -> {
+                            Logger.e("getDbAppList", "onNext: " + appInfos);
+                            mDesktopSortAppData.setValue(appInfos);
+                        },
+                        throwable -> Logger.e("getDbAppList", "onError: " + throwable.getMessage())));
     }
 
-    public MutableLiveData<Integer> mAppUpdateData = new MutableLiveData<>();
-
     public void updateAppInfo(AppInfo appInfo) {
-        Observable.fromCallable(new Callable<Integer>() {
+        addDisposable(Observable.fromCallable(new Callable<Integer>() {
                     @Override
                     public Integer call() throws Exception {
                         if (appInfo.getOutside() == 0) {
@@ -166,32 +122,15 @@ public class AppListViewModel extends BaseViewModel<ActivityAppListBinding, Acti
 
                         return mAppRepository.update(appInfo);
                     }
-                }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+                })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<Integer>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("updateAppInfo", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull Integer row) {
-                        Logger.e("updateAppInfo", "onNext: " + row);
-                        mAppUpdateData.setValue(row);
-                        AppManager.getInstance().reorderAppPositions();
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("updateAppInfo", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("updateAppInfo", "onComplete: ");
-                    }
-                });
+                .subscribe(row -> {
+                            Logger.e("updateAppInfo", "onNext: " + row);
+                            mAppUpdateData.setValue(row);
+                            AppManager.getInstance().reorderAppPositions();
+                        },
+                        throwable -> Logger.e("updateAppInfo", "onError: " + throwable.getMessage())));
     }
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddActivity.java b/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddActivity.java
index da2ce88..ac64707 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddActivity.java
@@ -80,8 +80,8 @@ public class ContactAddActivity extends BaseMvvmActivity<ContactAddViewModel, Ac
     }
 
     @Override
-    protected void initData() {
-        mViewModel.mOnlineIdData.observe(this, new Observer<Long>() {
+    protected void observeViewModel() {
+        mViewModel.getOnlineIdData().observe(this, new Observer<Long>() {
             @Override
             public void onChanged(Long aLong) {
                 if (aLong > 0) {
@@ -92,7 +92,7 @@ public class ContactAddActivity extends BaseMvvmActivity<ContactAddViewModel, Ac
                 }
             }
         });
-        mViewModel.mDbIdData.observe(this, new Observer<Long>() {
+        mViewModel.getDbIdData().observe(this, new Observer<Long>() {
             @Override
             public void onChanged(Long aLong) {
                 PopTip.show("添加成功").iconSuccess();
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddViewModel.java
index 4b9b155..3d101ee 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/add/ContactAddViewModel.java
@@ -1,13 +1,12 @@
 package com.ttstd.dialer.activity.contact.add;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.data.repository.ContactDataRepository;
-import com.ttstd.dialer.databinding.ActivityContactAddBinding;
 import com.ttstd.dialer.db.contact.ContactInfo;
 import com.ttstd.dialer.utils.Logger;
 
@@ -17,22 +16,27 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
  * 新增联系人 ViewModel（Google 标准 MVVM）：
  * 网络优先 / 本地降级的策略已下沉到 Repository，ViewModel 只负责状态分发。
  */
-public class ContactAddViewModel extends BaseViewModel<ActivityContactAddBinding, ActivityEvent> {
+public class ContactAddViewModel extends BaseAndroidViewModel {
     private static final String TAG = "ContactAddViewModel";
 
-    private ContactDataRepository mRepository;
+    private final ContactDataRepository mRepository;
 
-    /**
-     * 服务端保存成功返回的 id
-     */
-    public MutableLiveData<Long> mOnlineIdData = new MutableLiveData<>();
+    /** 服务端保存成功返回的 id */
+    private final MutableLiveData<Long> mOnlineIdData = new MutableLiveData<>();
     /** 网络失败降级到本地 Room 保存返回的 id */
-    public MutableLiveData<Long> mDbIdData = new MutableLiveData<>();
+    private final MutableLiveData<Long> mDbIdData = new MutableLiveData<>();
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = ContactDataRepository.getInstance(context);
+    public ContactAddViewModel(Application application) {
+        super(application);
+        mRepository = ContactDataRepository.getInstance(application);
+    }
+
+    public LiveData<Long> getOnlineIdData() {
+        return mOnlineIdData;
+    }
+
+    public LiveData<Long> getDbIdData() {
+        return mDbIdData;
     }
 
     /**
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditActivity.java b/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditActivity.java
index 9872c92..121d98b 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditActivity.java
@@ -35,15 +35,7 @@ public class ContactEditActivity extends BaseMvvmActivity<ContactEditViewModel,
     @Override
     protected void initDataBinding() {
         mViewDataBinding.setClick(new BtnClick());
-    }
 
-    @Override
-    protected void initView() {
-
-    }
-
-    @Override
-    protected void initData() {
         Intent intent = getIntent();
         mContactInfo = (ContactInfo) intent.getSerializableExtra("ContactInfo");
         if (mContactInfo == null) {
@@ -52,7 +44,16 @@ public class ContactEditActivity extends BaseMvvmActivity<ContactEditViewModel,
         }
         mViewDataBinding.setContactInfo(mContactInfo);
         GlideUtils.loadImageSafe(ContactEditActivity.this, mContactInfo.getAvatar(), mViewDataBinding.nvAvatar, AvatarCacheUtil.getAvatar(ContactEditActivity.this, mContactInfo.getName()));
-        mViewModel.mBooleanMutableLiveData.observe(this, new Observer<Boolean>() {
+    }
+
+    @Override
+    protected void initView() {
+
+    }
+
+    @Override
+    protected void observeViewModel() {
+        mViewModel.getBooleanMutableLiveData().observe(this, new Observer<Boolean>() {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditViewModel.java
index 22bc0c4..66d3b91 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/edit/ContactEditViewModel.java
@@ -1,15 +1,14 @@
 package com.ttstd.dialer.activity.contact.edit;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
 import com.kongzue.dialogx.dialogs.PopTip;
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.data.ApiException;
 import com.ttstd.dialer.data.repository.ContactDataRepository;
-import com.ttstd.dialer.databinding.ActivityContactEditBinding;
 import com.ttstd.dialer.db.contact.ContactInfo;
 import com.ttstd.dialer.utils.Logger;
 
@@ -18,17 +17,20 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 /**
  * 编辑联系人 ViewModel（Google 标准 MVVM）：只依赖 Repository。
  */
-public class ContactEditViewModel extends BaseViewModel<ActivityContactEditBinding, ActivityEvent> {
+public class ContactEditViewModel extends BaseAndroidViewModel {
     private static final String TAG = "ContactEditViewModel";
 
-    private ContactDataRepository mRepository;
+    private final ContactDataRepository mRepository;
 
-    public MutableLiveData<Boolean> mBooleanMutableLiveData = new MutableLiveData<>();
+    private final MutableLiveData<Boolean> mBooleanMutableLiveData = new MutableLiveData<>();
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = ContactDataRepository.getInstance(context);
+    public ContactEditViewModel(Application application) {
+        super(application);
+        mRepository = ContactDataRepository.getInstance(application);
+    }
+
+    public LiveData<Boolean> getBooleanMutableLiveData() {
+        return mBooleanMutableLiveData;
     }
 
     /**
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListActivity.java b/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListActivity.java
index 44b2576..4fc5659 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListActivity.java
@@ -159,7 +159,7 @@ public class ContactListActivity extends BaseMvvmActivity<ContactListViewModel,
     }
 
     @Override
-    protected void initData() {
+    protected void observeViewModel() {
         // 观察 Resource 状态：LOADING / SUCCESS(含缓存 stale 数据) / ERROR(含兜底数据)
         mViewModel.getContactListData().observe(this, new Observer<Resource<List<ContactInfo>>>() {
             @Override
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListViewModel.java
index f9dc64e..bd45a05 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/list/ContactListViewModel.java
@@ -1,15 +1,13 @@
 package com.ttstd.dialer.activity.contact.list;
 
-import android.content.Context;
+import android.app.Application;
 
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.data.Resource;
 import com.ttstd.dialer.data.repository.ContactDataRepository;
-import com.ttstd.dialer.databinding.ActivityContactListBinding;
 import com.ttstd.dialer.db.contact.ContactInfo;
 import com.ttstd.dialer.utils.Logger;
 
@@ -21,18 +19,17 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
  * 联系人列表 ViewModel（Google 标准 MVVM）：
  * 只依赖 Repository，向 UI 暴露 LiveData&lt;Resource&lt;T&gt;&gt;，不感知网络/缓存/数据库细节。
  */
-public class ContactListViewModel extends BaseViewModel<ActivityContactListBinding, ActivityEvent> {
+public class ContactListViewModel extends BaseAndroidViewModel {
     private static final String TAG = "ContactListViewModel";
 
-    private ContactDataRepository mRepository;
+    private final ContactDataRepository mRepository;
 
     private final MutableLiveData<Resource<List<ContactInfo>>> mContactList = new MutableLiveData<>();
     private final MutableLiveData<Boolean> mDeleteResult = new MutableLiveData<>();
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = ContactDataRepository.getInstance(context);
+    public ContactListViewModel(Application application) {
+        super(application);
+        mRepository = ContactDataRepository.getInstance(application);
     }
 
     public LiveData<Resource<List<ContactInfo>>> getContactListData() {
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestActivity.java b/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestActivity.java
index ed50718..03f76b2 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestActivity.java
@@ -162,8 +162,8 @@ public class ContactTestActivity extends BaseMvvmActivity<ContactTestViewModel,
     }
 
     @Override
-    protected void initData() {
-        mViewModel.mOnlineContactListData.observe(this, new Observer<List<ContactInfo>>() {
+    protected void observeViewModel() {
+        mViewModel.getOnlineContactListData().observe(this, new Observer<List<ContactInfo>>() {
             @Override
             public void onChanged(List<ContactInfo> contactInfos) {
                 if (contactInfos == null) {
@@ -177,7 +177,7 @@ public class ContactTestActivity extends BaseMvvmActivity<ContactTestViewModel,
             }
         });
 
-        mViewModel.mLocalContactListData.observe(this, new Observer<List<ContactInfo>>() {
+        mViewModel.getLocalContactListData().observe(this, new Observer<List<ContactInfo>>() {
             @Override
             public void onChanged(List<ContactInfo> contactInfos) {
                 if (contactInfos == null) {
diff --git a/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestViewModel.java
index 0a102ed..667b0d1 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/contact/test/ContactTestViewModel.java
@@ -1,13 +1,12 @@
 package com.ttstd.dialer.activity.contact.test;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.data.repository.ContactDataRepository;
-import com.ttstd.dialer.databinding.ActivityContactTestBinding;
 import com.ttstd.dialer.db.contact.ContactInfo;
 import com.ttstd.dialer.utils.Logger;
 
@@ -18,19 +17,26 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 /**
  * 联系人测试页 ViewModel（Google 标准 MVVM）：只依赖 Repository。
  */
-public class ContactTestViewModel extends BaseViewModel<ActivityContactTestBinding, ActivityEvent> {
+public class ContactTestViewModel extends BaseAndroidViewModel {
     private static final String TAG = "ContactTestViewModel";
 
-    private ContactDataRepository mRepository;
+    private final ContactDataRepository mRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = ContactDataRepository.getInstance(context);
+    private final MutableLiveData<List<ContactInfo>> mOnlineContactListData = new MutableLiveData<>();
+    private final MutableLiveData<List<ContactInfo>> mLocalContactListData = new MutableLiveData<>();
+
+    public ContactTestViewModel(Application application) {
+        super(application);
+        mRepository = ContactDataRepository.getInstance(application);
     }
 
-    public MutableLiveData<List<ContactInfo>> mOnlineContactListData = new MutableLiveData<>();
-    public MutableLiveData<List<ContactInfo>> mLocalContactListData = new MutableLiveData<>();
+    public LiveData<List<ContactInfo>> getOnlineContactListData() {
+        return mOnlineContactListData;
+    }
+
+    public LiveData<List<ContactInfo>> getLocalContactListData() {
+        return mLocalContactListData;
+    }
 
     /**
      * 网络联系人（走多级缓存 + SWR，数据已按 position 排序）
diff --git a/app/src/main/java/com/ttstd/dialer/activity/main/MainActivity.java b/app/src/main/java/com/ttstd/dialer/activity/main/MainActivity.java
index 89dabda..277ee44 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/main/MainActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/main/MainActivity.java
@@ -205,8 +205,39 @@ public class MainActivity extends BaseMvvmActivity<MainViewModel, ActivityMainBi
     }
 
     @Override
-    protected void initData() {
-        Log.e(TAG, "initData: ");
+    protected void observeViewModel() {
+        LiveDataBus.get().<String>on(LiveDataAction.ACTION_UPDATE_APPS)
+                .observe(this, event -> {
+                    mViewModel.getOutsideApp();
+                    mViewModel.getHotseatApp();
+                });
+
+        mViewModel.getDesktopSortAppData().observe(this, new Observer<List<AppInfo>>() {
+            @Override
+            public void onChanged(List<AppInfo> appInfos) {
+                mAppInfos = appInfos;
+                Logger.e(TAG, "onChanged: mAppInfos size = " + mAppInfos.size());
+                setAppList();
+            }
+        });
+
+        mViewModel.getHotseatAppData().observe(this, new Observer<List<AppInfo>>() {
+            @Override
+            public void onChanged(List<AppInfo> appInfos) {
+                if (appInfos != null && !appInfos.isEmpty()) {
+                    GridLayoutManager layoutManager = (GridLayoutManager) mViewDataBinding.gvApp.getLayoutManager();
+                    if (layoutManager != null) {
+                        layoutManager.setSpanCount(Math.max(1, appInfos.size()));
+                    }
+                }
+                mAppGridAdapter.setAppInfos(appInfos);
+            }
+        });
+    }
+
+    @Override
+    protected void onLoadData() {
+        Log.e(TAG, "onLoadData: ");
         registerReceivers();
         AppManager.getInstance().addProgressCallback(new AppManager.ProgressCallback() {
             @Override
@@ -219,37 +250,8 @@ public class MainActivity extends BaseMvvmActivity<MainViewModel, ActivityMainBi
                 mViewModel.getOutsideApp();
             }
         });
-
-        LiveDataBus.get().<String>on(LiveDataAction.ACTION_UPDATE_APPS)
-                .observe(this, event -> {
-                    mViewModel.getOutsideApp();
-                    mViewModel.getHotseatApp();
-                });
-
-        mViewModel.mDesktopSortAppData.observe(this, new Observer<List<AppInfo>>() {
-            @Override
-            public void onChanged(List<AppInfo> appInfos) {
-                mAppInfos = appInfos;
-                Logger.e(TAG, "onChanged: mAppInfos size = " + mAppInfos.size());
-                setAppList();
-            }
-        });
         mViewModel.getOutsideApp();
-
-        mViewModel.mHotseatAppData.observe(this, new Observer<List<AppInfo>>() {
-            @Override
-            public void onChanged(List<AppInfo> appInfos) {
-                if (appInfos != null && !appInfos.isEmpty()) {
-                    GridLayoutManager layoutManager = (GridLayoutManager) mViewDataBinding.gvApp.getLayoutManager();
-                    if (layoutManager != null) {
-                        layoutManager.setSpanCount(Math.max(1, appInfos.size()));
-                    }
-                }
-                mAppGridAdapter.setAppInfos(appInfos);
-            }
-        });
         mViewModel.getHotseatApp();
-
     }
 
     @Override
diff --git a/app/src/main/java/com/ttstd/dialer/activity/main/MainViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/main/MainViewModel.java
index df8c9e7..75346a6 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/main/MainViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/main/MainViewModel.java
@@ -1,13 +1,11 @@
 package com.ttstd.dialer.activity.main;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.ActivityEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityMainBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.app.AppInfo;
 import com.ttstd.dialer.db.app.AppRepository;
 import com.ttstd.dialer.utils.Logger;
@@ -16,91 +14,60 @@ import java.util.List;
 import java.util.concurrent.Callable;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Observable;
-import io.reactivex.rxjava3.core.Observer;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class MainViewModel extends BaseViewModel<ActivityMainBinding, ActivityEvent> {
+public class MainViewModel extends BaseAndroidViewModel {
     private static final String TAG = "MainViewModel";
 
-    private AppRepository mAppRepository;
+    private final AppRepository mAppRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mAppRepository = new AppRepository(context);
+    private final MutableLiveData<List<AppInfo>> mDesktopSortAppData = new MutableLiveData<>();
+    private final MutableLiveData<List<AppInfo>> mHotseatAppData = new MutableLiveData<>();
+
+    public MainViewModel(Application application) {
+        super(application);
+        mAppRepository = new AppRepository(application);
     }
 
-    public MutableLiveData<List<AppInfo>> mDesktopSortAppData = new MutableLiveData<>();
+    public LiveData<List<AppInfo>> getDesktopSortAppData() {
+        return mDesktopSortAppData;
+    }
+
+    public LiveData<List<AppInfo>> getHotseatAppData() {
+        return mHotseatAppData;
+    }
 
     public void getOutsideApp() {
-        Observable.fromCallable(new Callable<List<AppInfo>>() {
+        addDisposable(Observable.fromCallable(new Callable<List<AppInfo>>() {
             @Override
             public List<AppInfo> call() throws Exception {
                 return mAppRepository.getOutsideAppWithoutHotseat();
             }
-        }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+        })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<AppInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("getOutsideApp", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull List<AppInfo> appInfos) {
-                        Logger.e("getOutsideApp", "onNext: " + appInfos);
-                        mDesktopSortAppData.setValue(appInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("getOutsideApp", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("getOutsideApp", "onComplete: ");
-                    }
-                });
+                .subscribe(appInfos -> {
+                            Logger.e("getOutsideApp", "onNext: " + appInfos);
+                            mDesktopSortAppData.setValue(appInfos);
+                        },
+                        throwable -> Logger.e("getOutsideApp", "onError: " + throwable.getMessage())));
     }
 
-    public MutableLiveData<List<AppInfo>> mHotseatAppData = new MutableLiveData<>();
-
     public void getHotseatApp() {
-        Observable.fromCallable(new Callable<List<AppInfo>>() {
+        addDisposable(Observable.fromCallable(new Callable<List<AppInfo>>() {
                     @Override
                     public List<AppInfo> call() throws Exception {
                         return mAppRepository.getHotseatApp();
                     }
-                }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), ActivityEvent.DESTROY))
+                })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<AppInfo>>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("getHotseatApp", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull List<AppInfo> appInfos) {
-                        Logger.e("getHotseatApp", "onNext: " + appInfos);
-                        mHotseatAppData.setValue(appInfos);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("getHotseatApp", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("getHotseatApp", "onComplete: ");
-                    }
-                });
+                .subscribe(appInfos -> {
+                            Logger.e("getHotseatApp", "onNext: " + appInfos);
+                            mHotseatAppData.setValue(appInfos);
+                        },
+                        throwable -> Logger.e("getHotseatApp", "onError: " + throwable.getMessage())));
     }
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallActivity.java b/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallActivity.java
index fea813c..b3bde3b 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallActivity.java
@@ -60,7 +60,7 @@ public class SettingsCallActivity extends BaseMvvmActivity<SettingsCallViewModel
     }
 
     @Override
-    protected void initData() {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallViewModel.java
index 3f89f8a..52259cd 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/call/SettingsCallViewModel.java
@@ -1,9 +1,7 @@
 package com.ttstd.dialer.activity.settings.call;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivitySettingsCallBinding;
 
-public class SettingsCallViewModel extends BaseViewModel<ActivitySettingsCallBinding, ActivityEvent> {
+public class SettingsCallViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsActivity.java b/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsActivity.java
index 6a7919f..fa59e0c 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsActivity.java
@@ -44,11 +44,15 @@ public class SettingsActivity extends BaseMvvmActivity<SettingsViewModel, Activi
     }
 
     @Override
-    protected void initData() {
-        mViewModel.snRegister();
+    protected void observeViewModel() {
 
     }
 
+    @Override
+    protected void onLoadData() {
+        mViewModel.snRegister();
+    }
+
     public class BtnClick {
         public void exit(View view) {
             finish();
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsViewModel.java
index 6b395d3..40de2ea 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/home/SettingsViewModel.java
@@ -1,42 +1,15 @@
 package com.ttstd.dialer.activity.settings.home;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
 import com.ttstd.dialer.bean.BaseResponse;
-import com.ttstd.dialer.databinding.ActivitySettingsBinding;
 import com.ttstd.dialer.network.OkHttpManager;
 import com.ttstd.dialer.utils.Logger;
 
-import io.reactivex.rxjava3.annotations.NonNull;
-import io.reactivex.rxjava3.core.Observer;
-import io.reactivex.rxjava3.disposables.Disposable;
-
-public class SettingsViewModel extends BaseViewModel<ActivitySettingsBinding, ActivityEvent> {
+public class SettingsViewModel extends BaseViewModel {
 
     public void snRegister() {
-        OkHttpManager.getInstance().getSnRegisterObservable(getLifecycle())
-                .subscribe(new Observer<BaseResponse>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("snRegister", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull BaseResponse baseResponse) {
-                        Logger.e("snRegister", "onNext: " + baseResponse);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("snRegister", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("snRegister", "onComplete: ");
-                    }
-                });
-
-
+        addDisposable(OkHttpManager.getInstance().getSnRegisterObservable()
+                .subscribe(baseResponse -> Logger.e("snRegister", "onNext: " + baseResponse),
+                        throwable -> Logger.e("snRegister", "onError: " + throwable.getMessage())));
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsActivity.java b/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsActivity.java
index c40a2a0..5a4546a 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsActivity.java
@@ -140,7 +140,7 @@ public class SettingsUtilsActivity extends BaseMvvmActivity<SettingsUtilsViewMod
     }
 
     @Override
-    protected void initData() {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsViewModel.java
index 2a97966..b66b0ba 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/settings/utils/SettingsUtilsViewModel.java
@@ -1,10 +1,7 @@
 package com.ttstd.dialer.activity.settings.utils;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivitySettingsCallBinding;
-import com.ttstd.dialer.databinding.ActivitySettingsUtilsBinding;
 
-public class SettingsUtilsViewModel extends BaseViewModel<ActivitySettingsUtilsBinding, ActivityEvent> {
+public class SettingsUtilsViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/template/TemplateActivity.java b/app/src/main/java/com/ttstd/dialer/activity/template/TemplateActivity.java
index f0fd635..028c075 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/template/TemplateActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/template/TemplateActivity.java
@@ -31,7 +31,7 @@ public class TemplateActivity extends BaseMvvmActivity<TemplateViewModel, Activi
     }
 
     @Override
-    protected void initData() {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/activity/template/TemplateViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/template/TemplateViewModel.java
index 33a392d..1e98521 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/template/TemplateViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/template/TemplateViewModel.java
@@ -1,9 +1,7 @@
 package com.ttstd.dialer.activity.template;
 
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityTemplateBinding;
 
-public class TemplateViewModel extends BaseViewModel<ActivityTemplateBinding, ActivityEvent> {
+public class TemplateViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainActivity.java b/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainActivity.java
index cf659c5..c6ac7ff 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainActivity.java
@@ -67,23 +67,23 @@ public class WeatherMainActivity extends BaseMvvmActivity<WeatherMainViewModel,
     }
 
     @Override
-    protected void initData() {
-        Logger.e(TAG, "initData: ");
+    protected void observeViewModel() {
+        Logger.e(TAG, "observeViewModel: ");
 
-        mViewModel.mWeatherNowData.observe(this, new Observer<WeatherNow>() {
+        mViewModel.getWeatherNowData().observe(this, new Observer<WeatherNow>() {
             @Override
             public void onChanged(WeatherNow weatherNow) {
                 mViewDataBinding.setWeatherNow(weatherNow);
             }
         });
-        mViewModel.mWeather24hData.observe(this, new Observer<List<WeatherHourly>>() {
+        mViewModel.getWeather24hData().observe(this, new Observer<List<WeatherHourly>>() {
             @Override
             public void onChanged(List<WeatherHourly> weatherHourlies) {
                 mHourlyWeatherAdapter.setWeatherHourlyList(weatherHourlies);
             }
         });
 
-        mViewModel.mWeatherDailyListData.observe(this, new Observer<List<WeatherDaily>>() {
+        mViewModel.getWeatherDailyListData().observe(this, new Observer<List<WeatherDaily>>() {
             @Override
             public void onChanged(List<WeatherDaily> weatherDailies) {
                 Optional<WeatherDaily> dailyOptional = weatherDailies.stream().filter(new Predicate<WeatherDaily>() {
@@ -101,7 +101,10 @@ public class WeatherMainActivity extends BaseMvvmActivity<WeatherMainViewModel,
                 mWeatherAdapter.setWeatherDailyList(weatherDailies);
             }
         });
+    }
 
+    @Override
+    protected void onLoadData() {
         boolean manually = mMMKV.decodeBool(CommonConfig.MANUALLY_SELECT_LOCATION, CommonConfig.MANUALLY_SELECT_LOCATION_DEFAULT_VALUE);
         if (manually) {
 
diff --git a/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainViewModel.java b/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainViewModel.java
index 512db25..db50dfe 100644
--- a/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/activity/weather/main/WeatherMainViewModel.java
@@ -1,5 +1,6 @@
 package com.ttstd.dialer.activity.weather.main;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
 import com.qweather.sdk.Callback;
@@ -10,19 +11,31 @@ import com.qweather.sdk.response.weather.WeatherHourly;
 import com.qweather.sdk.response.weather.WeatherHourlyResponse;
 import com.qweather.sdk.response.weather.WeatherNow;
 import com.qweather.sdk.response.weather.WeatherNowResponse;
-import com.trello.rxlifecycle4.android.ActivityEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.ActivityWeatherMainBinding;
 import com.ttstd.dialer.gson.GsonUtils;
 import com.ttstd.dialer.manager.WeatherManager;
 import com.ttstd.dialer.utils.Logger;
 
 import java.util.List;
 
-public class WeatherMainViewModel extends BaseViewModel<ActivityWeatherMainBinding, ActivityEvent> {
+public class WeatherMainViewModel extends BaseViewModel {
     private static final String TAG = "WeatherMainViewModel";
 
-    public MutableLiveData<WeatherNow> mWeatherNowData = new MutableLiveData<>();
+    private final MutableLiveData<WeatherNow> mWeatherNowData = new MutableLiveData<>();
+    private final MutableLiveData<List<WeatherHourly>> mWeather24hData = new MutableLiveData<>();
+    private final MutableLiveData<List<WeatherDaily>> mWeatherDailyListData = new MutableLiveData<>();
+
+    public LiveData<WeatherNow> getWeatherNowData() {
+        return mWeatherNowData;
+    }
+
+    public LiveData<List<WeatherHourly>> getWeather24hData() {
+        return mWeather24hData;
+    }
+
+    public LiveData<List<WeatherDaily>> getWeatherDailyListData() {
+        return mWeatherDailyListData;
+    }
 
     public void getWeatherNow(String adCode) {
         Logger.e(TAG, "getWeatherNow: " + adCode);
@@ -48,8 +61,6 @@ public class WeatherMainViewModel extends BaseViewModel<ActivityWeatherMainBindi
         });
     }
 
-    public MutableLiveData<List<WeatherHourly>> mWeather24hData = new MutableLiveData<>();
-
     public void getWeather24h(String adCode) {
         Logger.e(TAG, "getWeather24h: " + adCode);
         WeatherManager.getInstance().getWeather24HourAdCode(adCode, new Callback<WeatherHourlyResponse>() {
@@ -74,9 +85,6 @@ public class WeatherMainViewModel extends BaseViewModel<ActivityWeatherMainBindi
         });
     }
 
-
-    public MutableLiveData<List<WeatherDaily>> mWeatherDailyListData = new MutableLiveData<>();
-
     public void getWeather10D(String adCode) {
         Logger.e(TAG, "getWeather10D: " + adCode);
         WeatherManager.getInstance().getWeather10DayAdCode(adCode, new Callback<WeatherDailyResponse>() {
diff --git a/app/src/main/java/com/ttstd/dialer/base/BaseFragment.java b/app/src/main/java/com/ttstd/dialer/base/BaseFragment.java
index a7ed578..9bb4737 100644
--- a/app/src/main/java/com/ttstd/dialer/base/BaseFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/base/BaseFragment.java
@@ -1,44 +1,135 @@
 package com.ttstd.dialer.base;
 
 import android.os.Bundle;
+import android.util.Log;
+
+import androidx.annotation.Nullable;
 
 import com.ttstd.dialer.base.rx.BaseRxFragment;
 
+/**
+ * Fragment 基类，提供标准的懒加载框架
+ * <p>
+ * 兼容两种宿主场景：
+ * 1. ViewPager(v1) + FragmentPagerAdapter：通过 {@link #setUserVisibleHint} 判断可见性（老接口，deprecated）
+ * 2. ViewPager2 / FragmentTransaction.setMaxLifecycle：通过 onResume/onPause 判断可见性
+ * <p>
+ * 懒加载核心思路：
+ * 1. 视图创建完成({@code isViewInitiated}) + 当前页可见({@code isVisibleToUser}) 两个条件同时满足时，
+ *    才触发首次加载（{@link #onLazyLoad()}），之后切回该页不再重复触发。
+ * 2. {@link #fetchData()} 每次可见都会回调，用于需要刷新的场景。
+ * 3. View 销毁重建后自动重置懒加载状态，保证重建后的页面能重新渲染。
+ */
 public abstract class BaseFragment extends BaseRxFragment {
 
+    private static final String TAG = "BaseFragment";
+
+    /** 视图是否已创建（onViewCreated 之后为 true） */
     protected boolean isViewInitiated;
+    /** 当前 Fragment 是否对用户可见 */
     protected boolean isVisibleToUser;
+    /** 首次数据是否已初始化 */
     protected boolean isDataInitiated;
 
-
     @Override
-    public void onActivityCreated(Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
+    public void onViewCreated(@androidx.annotation.NonNull android.view.View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
         isViewInitiated = true;
+        // 视图已创建，检查是否满足懒加载条件
         prepareFetchData();
     }
 
     @Override
+    public void onResume() {
+        super.onResume();
+        // ViewPager2 / setMaxLifecycle 场景下没有 setUserVisibleHint 回调，用 onResume 判断可见性；
+        // 兼容 ViewPager(v1)：off-screen 页 getUserVisibleHint()==false，不会被误判为可见
+        if (!isViewInitiated || isHidden() || !getUserVisibleHint()) {
+            return;
+        }
+        setVisibleToUser(true);
+    }
+
+    @Override
+    public void onPause() {
+        // ViewPager2 / setMaxLifecycle 场景下用 onPause 判断不可见
+        if (isViewInitiated && !isHidden() && getUserVisibleHint()) {
+            setVisibleToUser(false);
+        }
+        super.onPause();
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        // View 销毁重建后，重置懒加载状态，保证重建后的页面能重新渲染控件
+        // 否则 Fragment 实例保留的 isDataInitiated=true 会导致重建后不再触发 onLazyLoad，控件消失
+        isDataInitiated = false;
+        isViewInitiated = false;
+        isVisibleToUser = false;
+    }
+
+    /**
+     * ViewPager(v1) + FragmentPagerAdapter 场景下，通过此回调精确判断当前页是否可见
+     */
+    @Override
+    @Deprecated
     public void setUserVisibleHint(boolean isVisibleToUser) {
         super.setUserVisibleHint(isVisibleToUser);
-        this.isVisibleToUser = isVisibleToUser;
+        if (!isViewInitiated) {
+            return;
+        }
+        setVisibleToUser(isVisibleToUser);
+    }
+
+    /**
+     * 统一更新可见性并触发懒加载判断
+     */
+    private void setVisibleToUser(boolean visible) {
+        if (this.isVisibleToUser == visible) {
+            return;
+        }
+        this.isVisibleToUser = visible;
         prepareFetchData();
     }
 
+    /**
+     * 触发真实数据加载，子类重写实现具体加载逻辑
+     */
     public abstract void fetchData();
 
+    /**
+     * 懒加载入口：视图已创建 且 当前页可见 时触发一次
+     */
     public boolean prepareFetchData() {
         return prepareFetchData(false);
     }
 
+    /**
+     * 懒加载入口
+     *
+     * @param forceUpdate 为 true 时，即使已加载过也强制重新加载
+     */
     public boolean prepareFetchData(boolean forceUpdate) {
         if (isVisibleToUser && isViewInitiated && (!isDataInitiated || forceUpdate)) {
+            if (!isDataInitiated) {
+                Log.d(TAG, "lazyLoad trigger: " + getClass().getSimpleName());
+                onLazyLoad();
+            }
+            // 只在非强制刷新时标记为已初始化，保证首屏只渲染一次
+            if (!forceUpdate) {
+                isDataInitiated = true;
+            }
             fetchData();
-            //注释掉保证每次都更新数据
-//            isDataInitiated = true;
             return true;
         }
         return false;
     }
 
+    /**
+     * 首次可见时回调，用于做一次性的重操作（如创建控件、加载图片等）
+     * 默认空实现，子类按需重写
+     */
+    protected void onLazyLoad() {
+    }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseAndroidViewModel.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseAndroidViewModel.java
new file mode 100644
index 0000000..c7671e1
--- /dev/null
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseAndroidViewModel.java
@@ -0,0 +1,135 @@
+package com.ttstd.dialer.base.mvvm;
+
+import android.app.Application;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+
+import io.reactivex.rxjava3.disposables.CompositeDisposable;
+import io.reactivex.rxjava3.disposables.Disposable;
+
+/**
+ * MVVM ViewModel 基类（带 Context 版本）
+ *
+ * 继承 {@link AndroidViewModel}，可通过 {@link #getAppContext()} 获取 Application 级别的 Context。
+ * Application Context 生命周期与进程一致，不会造成内存泄漏。
+ *
+ * 职责：
+ *   - 持有 UI 状态（LiveData）
+ *   - 处理业务逻辑
+ *   - 暴露数据给 View 层
+ *   - 通过 {@link #addDisposable(Disposable)} 统一管理 RxJava 异步任务
+ *   - 可通过 {@link #getAppContext()} 获取 Application Context（安全）
+ *
+ * 禁止：
+ *   - 持有任何 View 引用（Activity / Fragment / View）
+ *   - 使用 Activity Context 或持有 View 的 Context（只能使用 Application）
+ *   - 直接进行网络请求或数据库操作（必须通过 Repository）
+ *   - 在 ViewModel 中弹 Toast / Dialog / Snackbar
+ *   - 手动创建 Thread / Executor / AsyncTask 执行异步任务（必须使用 RxJava + {@link #addDisposable(Disposable)}）
+ *   - 忘记将 Disposable add 到 {@link #mDisposables} 中
+ */
+public abstract class BaseAndroidViewModel extends AndroidViewModel implements IMvvmUiState {
+
+    // ============================================================
+    // 通用 UI 状态
+    // ============================================================
+
+    /** 全局加载状态 */
+    private final MutableLiveData<Boolean> mLoadingLiveData = new MutableLiveData<>(false);
+
+    /** 全局错误提示 */
+    private final MutableLiveData<String> mErrorLiveData = new MutableLiveData<>();
+
+    /** 全局成功提示 */
+    private final MutableLiveData<String> mSuccessLiveData = new MutableLiveData<>();
+
+    // ============================================================
+    // RxJava 异步管理（核心）
+    // ============================================================
+
+    /**
+     * CompositeDisposable 用于统一管理所有 RxJava 订阅。
+     * 在 onCleared() 中自动 dispose，防止内存泄漏。
+     */
+    protected final CompositeDisposable mDisposables = new CompositeDisposable();
+
+    // ============================================================
+    // 构造方法
+    // ============================================================
+
+    public BaseAndroidViewModel(@NonNull Application application) {
+        super(application);
+    }
+
+    // ============================================================
+    // 对外暴露（只读）
+    // ============================================================
+
+    public LiveData<Boolean> getLoadingLiveData() {
+        return mLoadingLiveData;
+    }
+
+    public LiveData<String> getErrorLiveData() {
+        return mErrorLiveData;
+    }
+
+    public LiveData<String> getSuccessLiveData() {
+        return mSuccessLiveData;
+    }
+
+    // ============================================================
+    // 受保护的方法（子类调用）
+    // ============================================================
+
+    protected void setLoading(boolean loading) {
+        mLoadingLiveData.postValue(loading);
+    }
+
+    protected void setError(String message) {
+        mErrorLiveData.postValue(message);
+    }
+
+    protected void setSuccess(String message) {
+        mSuccessLiveData.postValue(message);
+    }
+
+    /**
+     * 便捷方法：将 Disposable 添加到 {@link #mDisposables} 中管理。
+     * 子类在发起 RxJava 请求时调用此方法。
+     */
+    protected void addDisposable(Disposable disposable) {
+        mDisposables.add(disposable);
+    }
+
+    // ============================================================
+    // Context 安全访问
+    // ============================================================
+
+    /**
+     * 获取 Application Context（安全，不会泄漏）。
+     * 子类可通过此方法访问：
+     *   - getApplication().getSharedPreferences(...)
+     *   - getApplication().getResources().getString(...)
+     *   - getApplication().getSystemService(...)
+     */
+    @NonNull
+    protected Application getAppContext() {
+        return getApplication();
+    }
+
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
+    @Override
+    protected void onCleared() {
+        super.onCleared();
+        // ViewModel 销毁时，自动取消所有正在执行的 RxJava 任务
+        if (!mDisposables.isDisposed()) {
+            mDisposables.clear();
+        }
+    }
+}
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseMvvmActivity.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseMvvmActivity.java
index 6b9db5b..b5eb25e 100644
--- a/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseMvvmActivity.java
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseMvvmActivity.java
@@ -1,6 +1,8 @@
 package com.ttstd.dialer.base.mvvm;
 
 import android.os.Bundle;
+import android.os.Handler;
+import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 import androidx.databinding.DataBindingUtil;
@@ -14,6 +16,33 @@ import com.ttstd.dialer.utils.Logger;
 import java.lang.reflect.Modifier;
 import java.lang.reflect.ParameterizedType;
 
+/**
+ * MVVM Activity 基类
+ *
+ * 职责：
+ *   - 绑定 DataBinding
+ *   - 初始化 ViewModel（默认通过反射自动创建）
+ *   - 订阅 ViewModel 中的 LiveData（{@link #observeViewModel()}）
+ *   - 订阅全局通用状态（{@link #observeCommonState()}）
+ *   - 页面创建完成后加载数据（{@link #onLoadData()}）
+ *   - 将用户操作转发给 ViewModel
+ *
+ * 生命周期顺序（onCreate）：
+ *   1. 创建 DataBinding
+ *   2. 创建 ViewModel（{@link #createViewModel()}）
+ *   3. 订阅通用状态（{@link #observeCommonState()}）
+ *   4. 订阅业务状态（{@link #observeViewModel()}）
+ *   5. 初始化界面（{@link #initDataBinding()} / {@link #initView()}）
+ *   6. 加载数据（{@link #onLoadData()}）
+ *
+ * 禁止：
+ *   - 在 Activity 中直接进行网络请求或数据库操作（必须通过 ViewModel → Repository）
+ *   - 持有可变 LiveData 的引用（应通过 LiveData 回调观察）
+ *   - 在 Activity 中写业务逻辑
+ *
+ * @param <VM> ViewModel 类型，必须继承 {@link BaseViewModel} 或 {@link BaseAndroidViewModel}
+ * @param <VDB> ViewDataBinding 类型
+ */
 public abstract class BaseMvvmActivity<VM extends ViewModel, VDB extends ViewDataBinding> extends BaseTransparentActivity {
 
     private static final String TAG = BaseMvvmActivity.class.getSimpleName();
@@ -22,39 +51,131 @@ public abstract class BaseMvvmActivity<VM extends ViewModel, VDB extends ViewDat
     protected VDB mViewDataBinding;
     protected Class<VM> vmClass;
 
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        //ViewDataBinding
+
+        // 1. 创建 DataBinding
         mViewDataBinding = DataBindingUtil.setContentView(this, getLayoutId());
         mViewDataBinding.setLifecycleOwner(this);
-        //ViewModel
-        vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
-        boolean isAbstract = Modifier.isAbstract(vmClass.getModifiers());
-        Logger.e(TAG, "isLocalClass:" + vmClass.getSimpleName().equals(ViewModel.class.getSimpleName()) + "   isAbstract:" + isAbstract);
-        if (!isAbstract) {//不是一个抽象类
-            mViewModel = new ViewModelProvider(this).get(vmClass);
-            if (mViewModel instanceof BaseViewModel) {
-                BaseViewModel<?, ?> baseVm = (BaseViewModel<?, ?>) mViewModel;
-                baseVm.setContext(this);
-                baseVm.setVDBinding(mViewDataBinding);
-                baseVm.setLifecycle(getLifecycleSubject());
-            }
-        }
+
+        // 2. 创建 ViewModel
+        mViewModel = createViewModel();
+
+        // 3. 订阅通用状态
+        observeCommonState();
+
+        // 4. 订阅业务状态
+        observeViewModel();
+
+        // 5. 初始化界面
         initDataBinding();
         initView();
-        initData();
+
+        // 6. 加载数据
+        onLoadData();
     }
 
+    // ============================================================
+    // 抽象方法（子类必须实现）
+    // ============================================================
+
+    /** 创建 ViewModel 实例（默认通过反射自动创建，子类可按需重写） */
+    protected VM createViewModel() {
+        vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
+        boolean isAbstract = Modifier.isAbstract(vmClass.getModifiers());
+        if (isAbstract) {
+            Logger.e(TAG, "ViewModel is abstract: " + vmClass.getSimpleName());
+            return null;
+        }
+        return new ViewModelProvider(this).get(vmClass);
+    }
+
+    /** 初始化 DataBinding（如设置 setClick、绑定表达式等） */
     protected abstract void initDataBinding();
 
-    /**
-     * 初始化视图
-     */
+    /** 初始化视图（如设置 Adapter、Listener 等） */
     protected abstract void initView();
 
+    /** 订阅 ViewModel 中的业务 LiveData */
+    protected abstract void observeViewModel();
+
+    // ============================================================
+    // 可选重写
+    // ============================================================
+
     /**
-     * 初始化数据
+     * 页面创建完成后加载数据
+     * 子类可重写此方法触发首次数据加载
      */
-    protected abstract void initData();
+    protected void onLoadData() {
+        // 默认空实现
+    }
+
+    /**
+     * 订阅全局通用状态（loading / error / success）
+     * 子类可在 {@link #observeViewModel()} 中调用 super.observeCommonState()，或直接重写
+     */
+    protected void observeCommonState() {
+        if (!(mViewModel instanceof IMvvmUiState)) return;
+        IMvvmUiState vm = (IMvvmUiState) mViewModel;
+
+        vm.getLoadingLiveData().observe(this, loading -> {
+            if (loading != null && loading) {
+                showLoading();
+            } else {
+                hideLoading();
+            }
+        });
+
+        vm.getErrorLiveData().observe(this, error -> {
+            if (error != null && !error.isEmpty()) {
+                showError(error);
+            }
+        });
+
+        vm.getSuccessLiveData().observe(this, msg -> {
+            if (msg != null && !msg.isEmpty()) {
+                showSuccess(msg);
+            }
+        });
+    }
+
+    // ============================================================
+    // UI 辅助方法（子类可重写）
+    // ============================================================
+
+    protected void showLoading() {
+        // 默认实现：可替换为自定义 LoadingDialog
+        // LoadingDialog.show(this);
+    }
+
+    protected void hideLoading() {
+        // LoadingDialog.dismiss();
+    }
+
+    protected void showError(String message) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    }
+
+    protected void showSuccess(String message) {
+        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    }
+
+    // ============================================================
+    // 禁止使用的模式（编译期约束）
+    // ============================================================
+
+    /**
+     * @deprecated 禁止在 MVVM Activity 中直接创建 Handler 做延时操作
+     *             → 应使用 ViewModel + LiveData 驱动
+     */
+    @Deprecated
+    protected Handler getHandler() {
+        throw new UnsupportedOperationException("禁止在 MVVM Activity 中使用 Handler");
+    }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseViewModel.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseViewModel.java
index 0be84a2..ac7b371 100644
--- a/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/BaseViewModel.java
@@ -1,75 +1,106 @@
 package com.ttstd.dialer.base.mvvm;
 
-import android.content.Context;
-
-import androidx.databinding.ViewDataBinding;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
-import java.lang.ref.WeakReference;
-
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
-import io.reactivex.rxjava3.subjects.BehaviorSubject;
 
-public abstract class BaseViewModel<VDB extends ViewDataBinding, T> extends ViewModel {
+/**
+ * MVVM ViewModel 基类（无 Context 版本）
+ *
+ * 职责：
+ *   - 持有 UI 状态（LiveData）
+ *   - 处理业务逻辑
+ *   - 暴露数据给 View 层
+ *   - 通过 {@link #addDisposable(Disposable)} 统一管理 RxJava 异步任务
+ *
+ * 禁止：
+ *   - 持有任何 View 引用（Activity / Fragment / View / Context）
+ *   - 直接进行网络请求或数据库操作（必须通过 Repository）
+ *   - 在 ViewModel 中弹 Toast / Dialog / Snackbar
+ *   - 手动创建 Thread / Executor / AsyncTask 执行异步任务（必须使用 RxJava + {@link #addDisposable(Disposable)}）
+ *   - 忘记将 Disposable add 到 {@link #mDisposables} 中
+ *
+ * 若需要 Context / Application（如 SharedPreferences、AlarmManager 等），请继承
+ * {@link BaseAndroidViewModel}，通过 {@code getAppContext()} 获取 Application Context。
+ */
+public abstract class BaseViewModel extends ViewModel implements IMvvmUiState {
+
+    // ============================================================
+    // 通用 UI 状态
+    // ============================================================
+
+    /** 全局加载状态 */
+    private final MutableLiveData<Boolean> mLoadingLiveData = new MutableLiveData<>(false);
+
+    /** 全局错误提示 */
+    private final MutableLiveData<String> mErrorLiveData = new MutableLiveData<>();
+
+    /** 全局成功提示 */
+    private final MutableLiveData<String> mSuccessLiveData = new MutableLiveData<>();
+
+    // ============================================================
+    // RxJava 异步管理（核心）
+    // ============================================================
 
     /**
-     * Google 标准写法：ViewModel 内统一管理 Rx 订阅，
-     * onCleared 时自动取消，防止内存泄漏。
+     * CompositeDisposable 用于统一管理所有 RxJava 订阅。
+     * 在 onCleared() 中自动 dispose，防止内存泄漏。
      */
     protected final CompositeDisposable mDisposables = new CompositeDisposable();
 
+    // ============================================================
+    // 对外暴露（只读）
+    // ============================================================
+
+    public LiveData<Boolean> getLoadingLiveData() {
+        return mLoadingLiveData;
+    }
+
+    public LiveData<String> getErrorLiveData() {
+        return mErrorLiveData;
+    }
+
+    public LiveData<String> getSuccessLiveData() {
+        return mSuccessLiveData;
+    }
+
+    // ============================================================
+    // 受保护的方法（子类调用）
+    // ============================================================
+
+    protected void setLoading(boolean loading) {
+        mLoadingLiveData.postValue(loading);
+    }
+
+    protected void setError(String message) {
+        mErrorLiveData.postValue(message);
+    }
+
+    protected void setSuccess(String message) {
+        mSuccessLiveData.postValue(message);
+    }
+
     /**
-     * 将订阅托管给 ViewModel 生命周期
+     * 便捷方法：将 Disposable 添加到 {@link #mDisposables} 中管理。
+     * 子类在发起 RxJava 请求时调用此方法，确保 ViewModel 销毁时自动取消订阅。
      */
     protected void addDisposable(Disposable disposable) {
         mDisposables.add(disposable);
     }
 
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
     @Override
     protected void onCleared() {
-        mDisposables.clear();
         super.onCleared();
-    }
-
-    /**
-     * 当前viewmodel对应的页面binding
-     */
-    protected VDB binding;
-
-    public void setVDBinding(ViewDataBinding vdBinding) {
-        binding = (VDB) vdBinding;
-    }
-
-    public VDB getVDBinding() {
-        if (binding == null) {
-            throw new NullPointerException("BaseViewModel >> getVDBinding >> null!!!");
+        // ViewModel 销毁时，自动取消所有正在执行的 RxJava 任务
+        if (!mDisposables.isDisposed()) {
+            mDisposables.clear();
         }
-        return binding;
-    }
-
-    private WeakReference<Context> weakContext;
-
-    public void setContext(Context context) {
-        if (weakContext == null) {
-            weakContext = new WeakReference<>(context.getApplicationContext());
-        }
-    }
-
-    public Context getSafeContext() {
-        if (weakContext == null) {
-            throw new NullPointerException("BaseViewModel >> getCtx >> null!!!");
-        }
-        return weakContext.get();
-    }
-
-    private BehaviorSubject<T> mBehaviorSubject;
-
-    public void setLifecycle(BehaviorSubject subject) {
-        this.mBehaviorSubject = (BehaviorSubject<T>) subject;
-    }
-
-    public BehaviorSubject<T> getLifecycle() {
-        return mBehaviorSubject;
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/IMvvmUiState.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/IMvvmUiState.java
new file mode 100644
index 0000000..837a129
--- /dev/null
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/IMvvmUiState.java
@@ -0,0 +1,22 @@
+package com.ttstd.dialer.base.mvvm;
+
+import androidx.lifecycle.LiveData;
+
+/**
+ * MVVM ViewModel 通用 UI 状态接口
+ *
+ * {@link BaseViewModel} 与 {@link BaseAndroidViewModel} 均实现本接口，
+ * 使基类（{@link BaseMvvmActivity} / {@link BaseMvvmFragment} / {@link BaseMvvmDialogFragment}）
+ * 能以统一的 {@code VM extends ViewModel} 泛型约束订阅 loading / error / success 状态。
+ */
+public interface IMvvmUiState {
+
+    /** 全局加载状态（只读） */
+    LiveData<Boolean> getLoadingLiveData();
+
+    /** 全局错误提示（只读） */
+    LiveData<String> getErrorLiveData();
+
+    /** 全局成功提示（只读） */
+    LiveData<String> getSuccessLiveData();
+}
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmDialogFragment.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmDialogFragment.java
index bca7b21..c65a688 100644
--- a/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmDialogFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmDialogFragment.java
@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Toast;
 
 import androidx.annotation.LayoutRes;
 import androidx.annotation.NonNull;
@@ -16,20 +17,35 @@ import androidx.lifecycle.ViewModel;
 import androidx.lifecycle.ViewModelProvider;
 
 import com.ttstd.dialer.base.BaseDialogFragment;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.IMvvmUiState;
 import com.ttstd.dialer.utils.Logger;
 
 import java.lang.ref.WeakReference;
 import java.lang.reflect.ParameterizedType;
 
 /**
- * 优化生命周期管理，去掉冗余的 Bundle 定义
- * @param <VM> ViewModel 类型
+ * MVVM DialogFragment 基类
+ *
+ * 职责：
+ *   - 绑定 DataBinding
+ *   - 初始化 ViewModel（默认通过反射自动创建）
+ *   - 订阅 ViewModel 中的 LiveData（{@link #observeViewModel()}）
+ *   - 订阅全局通用状态（{@link #observeCommonState()}）
+ *   - 页面创建完成后加载数据（{@link #onLoadData()}）
+ *   - 将用户操作转发给 ViewModel
+ *
+ * 禁止：
+ *   - 在 DialogFragment 中直接进行网络请求或数据库操作（必须通过 ViewModel → Repository）
+ *   - 持有可变 LiveData 的引用（应通过 LiveData 回调观察）
+ *   - 在 DialogFragment 中写业务逻辑
+ *
+ * @param <VM> ViewModel 类型，必须继承 {@link BaseViewModel} 或 {@link BaseAndroidViewModel}
  * @param <VDB> ViewDataBinding 类型
  */
 public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends ViewDataBinding> extends BaseDialogFragment {
+
     protected final String mTag = this.getClass().getSimpleName();
-    
+
     protected boolean mIsVisible;
     protected boolean mHasPrepare;
 
@@ -48,18 +64,16 @@ public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends V
         ctx = new WeakReference<>(context);
     }
 
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        // ViewModel 初始化移至 onCreate
+        // ViewModel 初始化
         try {
-            Class<VM> vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
-            mViewModel = new ViewModelProvider(this).get(vmClass);
-            if (mViewModel instanceof BaseViewModel) {
-                BaseViewModel<?, ?> baseVm = (BaseViewModel<?, ?>) mViewModel;
-                baseVm.setContext(getContext());
-                baseVm.setLifecycle(getLifecycleSubject());
-            }
+            mViewModel = createViewModel();
         } catch (Exception e) {
             Logger.e(mTag, "ViewModel initialization failed: " + e.getMessage());
         }
@@ -68,10 +82,8 @@ public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends V
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        // DataBinding 初始化
         mViewDataBinding = DataBindingUtil.inflate(inflater, getLayoutId(), container, false);
-        if (mViewModel instanceof BaseViewModel) {
-            ((BaseViewModel<?, ?>) mViewModel).setVDBinding(mViewDataBinding);
-        }
         return mViewDataBinding.getRoot();
     }
 
@@ -80,9 +92,17 @@ public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends V
         super.onViewCreated(view, savedInstanceState);
         mViewDataBinding.setLifecycleOwner(getViewLifecycleOwner());
 
+        // 订阅通用状态
+        observeCommonState();
+
+        // 订阅业务状态
+        observeViewModel();
+
         initDataBinding();
-        initView(getArguments());
-        initData(savedInstanceState);
+        initView(savedInstanceState);
+
+        // 加载数据
+        onLoadData();
 
         mHasPrepare = true;
         if (mIsVisible || getUserVisibleHint()) {
@@ -96,9 +116,6 @@ public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends V
         super.onDestroyView();
         mHasPrepare = false;
         // 及时解绑 Binding，防止内存泄漏
-        if (mViewModel instanceof BaseViewModel) {
-            ((BaseViewModel<?, ?>) mViewModel).setVDBinding(null);
-        }
         mViewDataBinding = null;
     }
 
@@ -122,14 +139,85 @@ public abstract class BaseMvvmDialogFragment<VM extends ViewModel, VDB extends V
     public void fetchData() {
     }
 
+    // ============================================================
+    // 抽象方法（子类必须实现）
+    // ============================================================
+
+    /** 创建 ViewModel 实例（默认通过反射自动创建，子类可按需重写） */
+    protected VM createViewModel() {
+        Class<VM> vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
+        return new ViewModelProvider(this).get(vmClass);
+    }
+
     @LayoutRes
     protected abstract int getLayoutId();
 
+    /** 初始化 DataBinding（如设置 setClick、绑定表达式等） */
     protected abstract void initDataBinding();
 
-    protected abstract void initView(Bundle bundle);
+    /** 初始化视图（如设置 Adapter、Listener 等） */
+    protected abstract void initView(Bundle savedInstanceState);
 
-    protected abstract void initData(Bundle savedInstanceState);
+    /** 订阅 ViewModel 中的业务 LiveData */
+    protected abstract void observeViewModel();
+
+    // ============================================================
+    // 可选重写
+    // ============================================================
+
+    /**
+     * 页面创建完成后加载数据
+     * 子类可重写此方法触发首次数据加载
+     */
+    protected void onLoadData() {
+        // 默认空实现
+    }
+
+    /**
+     * 订阅全局通用状态（loading / error / success）
+     */
+    protected void observeCommonState() {
+        if (!(mViewModel instanceof IMvvmUiState)) return;
+        IMvvmUiState vm = (IMvvmUiState) mViewModel;
+
+        vm.getLoadingLiveData().observe(getViewLifecycleOwner(), loading -> {
+            if (loading != null && loading) {
+                showLoading();
+            } else {
+                hideLoading();
+            }
+        });
+
+        vm.getErrorLiveData().observe(getViewLifecycleOwner(), error -> {
+            if (error != null && !error.isEmpty()) {
+                showError(error);
+            }
+        });
+
+        vm.getSuccessLiveData().observe(getViewLifecycleOwner(), msg -> {
+            if (msg != null && !msg.isEmpty()) {
+                showSuccess(msg);
+            }
+        });
+    }
+
+    // ============================================================
+    // UI 辅助方法（子类可重写）
+    // ============================================================
+
+    protected void showLoading() {
+    }
+
+    protected void hideLoading() {
+    }
+
+    protected void showError(String message) {
+        Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+    }
+
+    protected void showSuccess(String message) {
+        Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+    }
 
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
diff --git a/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmFragment.java b/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmFragment.java
index 9210917..e495ded 100644
--- a/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/base/mvvm/fragment/BaseMvvmFragment.java
@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Toast;
 
 import androidx.annotation.LayoutRes;
 import androidx.annotation.NonNull;
@@ -16,27 +17,41 @@ import androidx.lifecycle.ViewModel;
 import androidx.lifecycle.ViewModelProvider;
 
 import com.ttstd.dialer.base.BaseFragment;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.IMvvmUiState;
 import com.ttstd.dialer.utils.Logger;
 
 import java.lang.ref.WeakReference;
 import java.lang.reflect.ParameterizedType;
 
 /**
- * 优化生命周期管理，去掉冗余的 Bundle 定义
- * @param <VM> ViewModel 类型
+ * MVVM Fragment 基类
+ *
+ * 职责：
+ *   - 绑定 DataBinding
+ *   - 初始化 ViewModel（默认通过反射自动创建）
+ *   - 订阅 ViewModel 中的 LiveData（{@link #observeViewModel()}）
+ *   - 订阅全局通用状态（{@link #observeCommonState()}）
+ *   - 页面创建完成后加载数据（{@link #onLoadData()}）
+ *   - 支持懒加载（{@link #onEnter()} / {@link #onExit()}）
+ *   - 将用户操作转发给 ViewModel
+ *
+ * 禁止：
+ *   - 在 Fragment 中直接进行网络请求或数据库操作（必须通过 ViewModel → Repository）
+ *   - 持有可变 LiveData 的引用（应通过 LiveData 回调观察）
+ *   - 在 Fragment 中写业务逻辑
+ *   - 使用 getActivity() 强转后直接操作 Activity（应通过 ViewModel 通信）
+ *
+ * @param <VM> ViewModel 类型，必须继承 {@link BaseViewModel} 或 {@link BaseAndroidViewModel}
  * @param <VDB> ViewDataBinding 类型
  */
 public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDataBinding> extends BaseFragment {
+
     protected final String mTag = this.getClass().getSimpleName();
-    
-    /**
-     * 是否可见（用于懒加载逻辑）
-     */
+
+    /** 是否可见（用于懒加载逻辑） */
     protected boolean mIsVisible;
-    /**
-     * View 是否准备完毕
-     */
+
+    /** View 是否准备完毕 */
     protected boolean mHasPrepare;
 
     protected VM mViewModel;
@@ -54,18 +69,16 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
         ctx = new WeakReference<>(context);
     }
 
+    // ============================================================
+    // 生命周期
+    // ============================================================
+
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         // ViewModel 初始化
         try {
-            Class<VM> vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
-            mViewModel = new ViewModelProvider(this).get(vmClass);
-            if (mViewModel instanceof BaseViewModel) {
-                BaseViewModel<?, ?> baseVm = (BaseViewModel<?, ?>) mViewModel;
-                baseVm.setContext(getContext());
-                baseVm.setLifecycle(getLifecycleSubject());
-            }
+            mViewModel = createViewModel();
         } catch (Exception e) {
             Logger.e(mTag, "ViewModel initialization failed: " + e.getMessage());
         }
@@ -74,11 +87,8 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        // ViewDataBinding 初始化
+        // DataBinding 初始化
         mViewDataBinding = DataBindingUtil.inflate(inflater, getLayoutId(), container, false);
-        if (mViewModel instanceof BaseViewModel) {
-            ((BaseViewModel<?, ?>) mViewModel).setVDBinding(mViewDataBinding);
-        }
         return mViewDataBinding.getRoot();
     }
 
@@ -86,11 +96,18 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
         mViewDataBinding.setLifecycleOwner(getViewLifecycleOwner());
-        
+
+        // 订阅通用状态
+        observeCommonState();
+
+        // 订阅业务状态
+        observeViewModel();
+
         initDataBinding();
-        // 去掉重复的 bundle 和 savedInstanceState 定义，直接从参数/方法获取
-        initView(getArguments());
-        initData(savedInstanceState);
+        initView(savedInstanceState);
+
+        // 加载数据
+        onLoadData();
 
         mHasPrepare = true;
         // 检查初始可见性
@@ -105,9 +122,6 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
         super.onDestroyView();
         mHasPrepare = false;
         // 及时解绑 Binding，防止内存泄漏
-        if (mViewModel instanceof BaseViewModel) {
-            ((BaseViewModel<?, ?>) mViewModel).setVDBinding(null);
-        }
         mViewDataBinding = null;
     }
 
@@ -127,14 +141,91 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
         }
     }
 
+    // ============================================================
+    // 抽象方法（子类必须实现）
+    // ============================================================
+
+    /** 创建 ViewModel 实例（默认通过反射自动创建，子类可按需重写） */
+    protected VM createViewModel() {
+        Class<VM> vmClass = (Class<VM>) ((ParameterizedType) this.getClass().getGenericSuperclass()).getActualTypeArguments()[0];
+        return new ViewModelProvider(this).get(vmClass);
+    }
+
     @LayoutRes
     protected abstract int getLayoutId();
 
+    /** 初始化 DataBinding（如设置 setClick、绑定表达式等） */
     protected abstract void initDataBinding();
 
-    protected abstract void initView(Bundle bundle);
+    /** 初始化视图（如设置 Adapter、Listener 等） */
+    protected abstract void initView(Bundle savedInstanceState);
 
-    protected abstract void initData(Bundle savedInstanceState);
+    /** 订阅 ViewModel 中的业务 LiveData */
+    protected abstract void observeViewModel();
+
+    // ============================================================
+    // 可选重写
+    // ============================================================
+
+    /**
+     * 页面创建完成后加载数据
+     * 子类可重写此方法触发首次数据加载
+     */
+    protected void onLoadData() {
+        // 默认空实现
+    }
+
+    /**
+     * 订阅全局通用状态（loading / error / success）
+     * 子类可在 {@link #observeViewModel()} 中调用 super.observeCommonState()，或直接重写
+     */
+    protected void observeCommonState() {
+        if (!(mViewModel instanceof IMvvmUiState)) return;
+        IMvvmUiState vm = (IMvvmUiState) mViewModel;
+
+        vm.getLoadingLiveData().observe(getViewLifecycleOwner(), loading -> {
+            if (loading != null && loading) {
+                showLoading();
+            } else {
+                hideLoading();
+            }
+        });
+
+        vm.getErrorLiveData().observe(getViewLifecycleOwner(), error -> {
+            if (error != null && !error.isEmpty()) {
+                showError(error);
+            }
+        });
+
+        vm.getSuccessLiveData().observe(getViewLifecycleOwner(), msg -> {
+            if (msg != null && !msg.isEmpty()) {
+                showSuccess(msg);
+            }
+        });
+    }
+
+    // ============================================================
+    // UI 辅助方法（子类可重写）
+    // ============================================================
+
+    protected void showLoading() {
+        // 默认实现：可替换为自定义 LoadingDialog
+    }
+
+    protected void hideLoading() {
+    }
+
+    protected void showError(String message) {
+        Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+    }
+
+    protected void showSuccess(String message) {
+        Toast.makeText(getContext(), message, Toast.LENGTH_SHORT).show();
+    }
+
+    // ============================================================
+    // 懒加载回调（子类可重写）
+    // ============================================================
 
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
@@ -150,4 +241,17 @@ public abstract class BaseMvvmFragment<VM extends ViewModel, VDB extends ViewDat
     public boolean isAttached() {
         return getCtx() != null && isAdded();
     }
+
+    // ============================================================
+    // 禁止使用的模式（编译期约束）
+    // ============================================================
+
+    /**
+     * @deprecated 禁止在 MVVM Fragment 中通过 getActivity() 强转后直接操作 Activity
+     *             → 应通过 ViewModel 通信
+     */
+    @Deprecated
+    protected android.app.Activity getActivityAs() {
+        throw new UnsupportedOperationException("禁止在 MVVM Fragment 中使用 getActivity() 强转");
+    }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/app/AppFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/app/AppFragment.java
index a4e44a3..10ffe96 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/app/AppFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/app/AppFragment.java
@@ -104,10 +104,10 @@ public class AppFragment extends BaseMvvmFragment<AppViewModel, FragmentAppBindi
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
-        Logger.e(TAG, "initData: ");
-        Logger.e(TAG, "initData: " + mViewModel.mAppUpdateData);
-        mViewModel.mAppUpdateData.observe(getViewLifecycleOwner(), new Observer<Integer>() {
+    protected void observeViewModel() {
+        Logger.e(TAG, "observeViewModel: ");
+        Logger.e(TAG, "observeViewModel: " + mViewModel.getAppUpdateData());
+        mViewModel.getAppUpdateData().observe(getViewLifecycleOwner(), new Observer<Integer>() {
             @Override
             public void onChanged(Integer integer) {
                 if (integer > 0) {
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/app/AppViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/app/AppViewModel.java
index 229ee72..a8e0d21 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/app/AppViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/app/AppViewModel.java
@@ -1,11 +1,8 @@
 package com.ttstd.dialer.fragment.app;
 
-import android.content.Context;
+import android.app.Application;
 
-import com.trello.rxlifecycle4.RxLifecycle;
-import com.trello.rxlifecycle4.android.FragmentEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentAppBinding;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.db.app.AppInfo;
 import com.ttstd.dialer.db.app.AppRepository;
 import com.ttstd.dialer.livedata.SingleLiveEvent;
@@ -14,31 +11,27 @@ import com.ttstd.dialer.utils.Logger;
 import java.util.concurrent.Callable;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.annotations.NonNull;
 import io.reactivex.rxjava3.core.Observable;
-import io.reactivex.rxjava3.core.Observer;
-import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class AppViewModel extends BaseViewModel<FragmentAppBinding, FragmentEvent> {
+public class AppViewModel extends BaseAndroidViewModel {
     private static final String TAG = "AppViewModel";
 
-    private AppRepository mAppRepository;
+    private final AppRepository mAppRepository;
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mAppRepository = new AppRepository(context);
+    private final SingleLiveEvent<Integer> mAppUpdateData = new SingleLiveEvent<>();
+
+    public AppViewModel(Application application) {
+        super(application);
+        mAppRepository = new AppRepository(application);
     }
 
-    public SingleLiveEvent<Integer> mAppUpdateData = new SingleLiveEvent<>();
-
-//    public void resetLiveData() {
-//        mAppUpdateData = new MutableLiveData<>();
-//    }
+    public SingleLiveEvent<Integer> getAppUpdateData() {
+        return mAppUpdateData;
+    }
 
     public void updateAppInfo(AppInfo appInfo) {
-        Observable.fromCallable(new Callable<Integer>() {
+        addDisposable(Observable.fromCallable(new Callable<Integer>() {
             @Override
             public Integer call() throws Exception {
                 // 根据状态自动设置位置为最大值
@@ -53,30 +46,13 @@ public class AppViewModel extends BaseViewModel<FragmentAppBinding, FragmentEven
                 }
                 return mAppRepository.update(appInfo);
             }
-        }).compose(RxLifecycle.bindUntilEvent(getLifecycle(), FragmentEvent.DESTROY))
+        })
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<Integer>() {
-                    @Override
-                    public void onSubscribe(@NonNull Disposable d) {
-                        Logger.e("updateAppInfo", "onSubscribe: ");
-                    }
-
-                    @Override
-                    public void onNext(@NonNull Integer row) {
-                        Logger.e("updateAppInfo", "onNext: " + row);
-                        mAppUpdateData.setValue(row);
-                    }
-
-                    @Override
-                    public void onError(@NonNull Throwable e) {
-                        Logger.e("updateAppInfo", "onError: " + e.getMessage());
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        Logger.e("updateAppInfo", "onComplete: ");
-                    }
-                });
+                .subscribe(row -> {
+                            Logger.e("updateAppInfo", "onNext: " + row);
+                            mAppUpdateData.setValue(row);
+                        },
+                        throwable -> Logger.e("updateAppInfo", "onError: " + throwable.getMessage())));
     }
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactFragment.java
index 8774f7a..f961bbb 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactFragment.java
@@ -56,9 +56,8 @@ public class ContactFragment extends BaseMvvmFragment<ContactViewModel, Fragment
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
-        mViewModel.preloadData();
-        mViewModel.mContactListData.observe(getViewLifecycleOwner(), new Observer<List<ContactInfo>>() {
+    protected void observeViewModel() {
+        mViewModel.getContactListData().observe(getViewLifecycleOwner(), new Observer<List<ContactInfo>>() {
             @Override
             public void onChanged(List<ContactInfo> contactInfos) {
                 Logger.e(TAG, "mContactListData: " + contactInfos);
@@ -68,6 +67,11 @@ public class ContactFragment extends BaseMvvmFragment<ContactViewModel, Fragment
         });
     }
 
+    @Override
+    protected void onLoadData() {
+        mViewModel.preloadData();
+    }
+
 
     @Override
     public void fetchData() {
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactViewModel.java
index 25dcc36..eeed14e 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/contact/ContactViewModel.java
@@ -1,13 +1,12 @@
 package com.ttstd.dialer.fragment.contact;
 
-import android.content.Context;
+import android.app.Application;
 
+import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
-import com.ttstd.dialer.base.mvvm.BaseViewModel;
+import com.ttstd.dialer.base.mvvm.BaseAndroidViewModel;
 import com.ttstd.dialer.data.repository.ContactDataRepository;
-import com.ttstd.dialer.databinding.FragmentContactBinding;
 import com.ttstd.dialer.db.contact.ContactInfo;
 import com.ttstd.dialer.utils.Logger;
 
@@ -18,19 +17,25 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 /**
  * 主页联系人 ViewModel（Google 标准 MVVM）：
  * 统一走 Repository 多级缓存 + SWR，内存/磁盘缓存秒出，后台自动 revalidate。
+ *
+ * 需通过 {@link #getAppContext()} 获取 Application Context 初始化 Repository，
+ * 不持有任何 View / Activity 引用。
  */
-public class ContactViewModel extends BaseViewModel<FragmentContactBinding, FragmentEvent> {
+public class ContactViewModel extends BaseAndroidViewModel {
     private static final String TAG = "ContactViewModel";
 
-    private ContactDataRepository mRepository;
+    private final ContactDataRepository mRepository;
     private boolean isDataLoaded = false;
 
-    public MutableLiveData<List<ContactInfo>> mContactListData = new MutableLiveData<>();
+    private final MutableLiveData<List<ContactInfo>> mContactListData = new MutableLiveData<>();
 
-    @Override
-    public void setContext(Context context) {
-        super.setContext(context);
-        mRepository = ContactDataRepository.getInstance(context);
+    public ContactViewModel(Application application) {
+        super(application);
+        mRepository = ContactDataRepository.getInstance(application);
+    }
+
+    public LiveData<List<ContactInfo>> getContactListData() {
+        return mContactListData;
     }
 
     public void preloadData() {
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallFragment.java
index f4d9ef0..a448b54 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallFragment.java
@@ -59,7 +59,7 @@ public class CallFragment extends BaseMvvmDialogFragment<CallViewModel, DialogFr
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallViewModel.java
index 103bad5..151160e 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/call/CallViewModel.java
@@ -1,10 +1,8 @@
 package com.ttstd.dialer.fragment.dialog.contact.call;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.DialogFragmentContactCallBinding;
 
-public class CallViewModel extends BaseViewModel<DialogFragmentContactCallBinding, FragmentEvent> {
+public class CallViewModel extends BaseViewModel {
 
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteDialogFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteDialogFragment.java
index 12d8a90..6497f3f 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteDialogFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteDialogFragment.java
@@ -66,7 +66,7 @@ public class ContactDeleteDialogFragment extends BaseMvvmDialogFragment<ContactD
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteViewModel.java
index 8e3bf2b..dae57a2 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/delete/ContactDeleteViewModel.java
@@ -1,8 +1,6 @@
 package com.ttstd.dialer.fragment.dialog.contact.delete;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.DialogFragmentDeleteContactBinding;
 
-public class ContactDeleteViewModel extends BaseViewModel<DialogFragmentDeleteContactBinding, FragmentEvent> {
+public class ContactDeleteViewModel extends BaseViewModel {
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditDialogFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditDialogFragment.java
index 97304e3..f2a062b 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditDialogFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditDialogFragment.java
@@ -66,7 +66,7 @@ public class EditDialogFragment extends BaseMvvmDialogFragment<EditViewModel, Di
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditViewModel.java
index 1bc7202..0daddd3 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/contact/edit/EditViewModel.java
@@ -1,8 +1,6 @@
 package com.ttstd.dialer.fragment.dialog.contact.edit;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.DialogFragmentEditContactBinding;
 
-public class EditViewModel extends BaseViewModel<DialogFragmentEditContactBinding, FragmentEvent> {
+public class EditViewModel extends BaseViewModel {
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppDialogFagment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppDialogFagment.java
index cde2003..90dea33 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppDialogFagment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppDialogFagment.java
@@ -87,11 +87,6 @@ public class DockAppDialogFagment extends BaseMvvmDialogFragment<DockAppViewMode
 
     @Override
     protected void initView(Bundle bundle) {
-
-    }
-
-    @Override
-    protected void initData(Bundle savedInstanceState) {
         if (TextUtils.isEmpty(mTitile)) {
             mViewDataBinding.tvTitle.setText("提示");
         } else {
@@ -130,6 +125,11 @@ public class DockAppDialogFagment extends BaseMvvmDialogFragment<DockAppViewMode
         }
     }
 
+    @Override
+    protected void observeViewModel() {
+
+    }
+
     @Override
     public void onStart() {
         super.onStart();
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppViewModel.java
index 36af56a..09aae0a 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/dock/DockAppViewModel.java
@@ -1,10 +1,7 @@
 package com.ttstd.dialer.fragment.dialog.dock;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentDialogDockAppBinding;
-import com.ttstd.dialer.databinding.FragmentDialogShortcutBinding;
 
-public class DockAppViewModel extends BaseViewModel <FragmentDialogDockAppBinding, FragmentEvent>{
+public class DockAppViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppDialogFagment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppDialogFagment.java
index fb60270..1988fe2 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppDialogFagment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppDialogFagment.java
@@ -82,11 +82,6 @@ public class MoveAppDialogFagment extends BaseMvvmDialogFragment<MoveAppViewMode
 
     @Override
     protected void initView(Bundle bundle) {
-
-    }
-
-    @Override
-    protected void initData(Bundle savedInstanceState) {
         if (TextUtils.isEmpty(mTitile)) {
             mViewDataBinding.tvTitle.setText("提示");
         } else {
@@ -125,6 +120,11 @@ public class MoveAppDialogFagment extends BaseMvvmDialogFragment<MoveAppViewMode
         }
     }
 
+    @Override
+    protected void observeViewModel() {
+
+    }
+
     @Override
     public void onStart() {
         super.onStart();
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppViewModel.java
index e9a5f40..883c7d0 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/move/MoveAppViewModel.java
@@ -1,9 +1,7 @@
 package com.ttstd.dialer.fragment.dialog.move;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentDialogMoveAppBinding;
 
-public class MoveAppViewModel extends BaseViewModel <FragmentDialogMoveAppBinding, FragmentEvent>{
+public class MoveAppViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutDialogFagment.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutDialogFagment.java
index 2633065..df9cb6e 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutDialogFagment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutDialogFagment.java
@@ -87,11 +87,6 @@ public class ShortcutDialogFagment extends BaseMvvmDialogFragment<ShortcutViewMo
 
     @Override
     protected void initView(Bundle bundle) {
-
-    }
-
-    @Override
-    protected void initData(Bundle savedInstanceState) {
         if (TextUtils.isEmpty(mTitile)) {
             mViewDataBinding.tvTitle.setText("提示");
         } else {
@@ -130,6 +125,11 @@ public class ShortcutDialogFagment extends BaseMvvmDialogFragment<ShortcutViewMo
         }
     }
 
+    @Override
+    protected void observeViewModel() {
+
+    }
+
     @Override
     public void onStart() {
         super.onStart();
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutViewModel.java
index 814a496..f1743f6 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/dialog/shortcut/ShortcutViewModel.java
@@ -1,9 +1,7 @@
 package com.ttstd.dialer.fragment.dialog.shortcut;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentDialogShortcutBinding;
 
-public class ShortcutViewModel extends BaseViewModel <FragmentDialogShortcutBinding, FragmentEvent>{
+public class ShortcutViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/home/HomeFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/home/HomeFragment.java
index cfa51e5..33b43b6 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/home/HomeFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/home/HomeFragment.java
@@ -116,7 +116,7 @@ public class HomeFragment extends BaseMvvmFragment<HomeViewModel, FragmentHomeBi
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
+    protected void observeViewModel() {
         LiveEventBus.get(CommonConfig.LOCATION_CHANGED_KEY, SnLocationReq.class)
                 .observeSticky(this, new Observer<SnLocationReq>() {
                     @Override
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/home/HomeViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/home/HomeViewModel.java
index d347c6d..16f5918 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/home/HomeViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/home/HomeViewModel.java
@@ -1,10 +1,8 @@
 package com.ttstd.dialer.fragment.home;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentHomeBinding;
 
-public class HomeViewModel extends BaseViewModel<FragmentHomeBinding, FragmentEvent> {
+public class HomeViewModel extends BaseViewModel {
 
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsFragment.java b/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsFragment.java
index 72fd9df..87d01ac 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsFragment.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsFragment.java
@@ -37,7 +37,7 @@ public class SettingsFragment extends BaseMvvmFragment<SettingsViewModel, Fragme
     }
 
     @Override
-    protected void initData(Bundle savedInstanceState) {
+    protected void observeViewModel() {
 
     }
 
diff --git a/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsViewModel.java b/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsViewModel.java
index 310f33b..bcbb968 100644
--- a/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsViewModel.java
+++ b/app/src/main/java/com/ttstd/dialer/fragment/settings/SettingsViewModel.java
@@ -1,9 +1,7 @@
 package com.ttstd.dialer.fragment.settings;
 
-import com.trello.rxlifecycle4.android.FragmentEvent;
 import com.ttstd.dialer.base.mvvm.BaseViewModel;
-import com.ttstd.dialer.databinding.FragmentSettingsBinding;
 
-public class SettingsViewModel extends BaseViewModel<FragmentSettingsBinding, FragmentEvent> {
+public class SettingsViewModel extends BaseViewModel {
 
 }
diff --git a/app/src/main/java/com/ttstd/dialer/network/OkHttpManager.java b/app/src/main/java/com/ttstd/dialer/network/OkHttpManager.java
index b324a62..b21b71c 100644
--- a/app/src/main/java/com/ttstd/dialer/network/OkHttpManager.java
+++ b/app/src/main/java/com/ttstd/dialer/network/OkHttpManager.java
@@ -319,6 +319,13 @@ public class OkHttpManager {
         return schedule(getApiService(SnApi.class).register(DeviceManagerService.getInstance().getSerial(), Build.MODEL), provider);
     }
 
+    /**
+     * 设备注册（由 ViewModel 通过 addDisposable 管理订阅生命周期）
+     */
+    public Observable<BaseResponse> getSnRegisterObservable() {
+        return schedule(getApiService(SnApi.class).register(DeviceManagerService.getInstance().getSerial(), Build.MODEL));
+    }
+
     /**
      * 上传设备基本信息
      */