6.1.1 - 新增应用更新功能修复编辑器页面/安卓10存储权限异常消息资源化

2022-05-31 21:23:36 +08:00
parent f68ad1c993
commit 069932c8d3
93 changed files with 2094 additions and 680 deletions
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,10 +2,25 @@
        xmlns:tools="http://schemas.android.com/tools"
        package="org.autojs.autojs">

+    <!--
+         @Hint by SuperMonster003 on May 27, 2022.
+          ! WRT: android.permission.WRITE_EXTERNAL_STORAGE
+          ! MSV<API>: android:maxSdkVersion="API"
+          ! LGC: android:requestLegacyExternalStorage="true" (since API 29)
+          ! MAN: android.permission.MANAGE_EXTERNAL_STORAGE (since API 30)
+          !
+          ! Storage permission requirement on different API targets.
+          ! [ XXX ] means optional but recommended.
+          !
+          ! Target API == 28: WRT
+          ! Target API == 29: WRT + [ MSV<29> ] / WRT + [ MSV<28> ] + LGC
+          ! Target API >= 30: WRT + [ MSV<29> ] + LGC  + MAN
+     -->
+
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission
            android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-            android:maxSdkVersion="28" />
+            android:maxSdkVersion="29" />
    <uses-permission
            android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
            tools:ignore="ScopedStorage" />
@@ -42,6 +57,7 @@
            android:supportsRtl="true"
            android:theme="@style/AppTheme"
            android:usesCleartextTraffic="true"
+            android:requestLegacyExternalStorage="true"
            tools:replace="android:label, android:allowBackup"
            tools:ignore="DataExtractionRules">

--- a/app/src/main/assets/doc/CHANGELOG.md
+++ b/app/src/main/assets/doc/CHANGELOG.md
@@ -4,6 +4,20 @@

 ******

+# v6.1.1
+
+###### 2022/05/31
+
+* `新增` 检查更新/下载更新/更新提示功能 (参阅 设置页面) (暂不支持安卓 7.x 系统)
+* `修复` 应用在安卓 10 系统无法读写外部存储的问题 _[`issue #17`](https://github.com/SuperMonster003/AutoJs6/issues/17)_
+* `修复` 编辑器页面长按时可能导致应用崩溃的问题 _[`issue #18`](https://github.com/SuperMonster003/AutoJs6/issues/18)_
+* `修复` 编辑器页面长按菜单 "删除行" 和 "复制行" 功能无效的问题
+* `修复` 编辑器页面选项菜单中 "粘贴" 功能缺失的问题
+* `优化` 部分异常消息字符串资源化 (en / zh)
+* `优化` 调整内容未保存对话框的按钮布局并增加颜色区分
+* `优化` 附加 github-api 版本 1.306
+* `优化` 替换 retrofit2-rxjava2-adapter 版本 1.0.0 为 adapter-rxjava2 版本 2.9.0
+
 # v6.1.0

 ###### 2022/05/26 - 包名变更 谨慎升级
@@ -82,14 +96,14 @@
 * `优化` 主页抽屉增加前台服务状态开关的同步
 * `优化` 主页抽屉展开时立即按需同步开关状态
 * `优化` 显示指针位置增加状态检测及结果提示
-* `优化` 支持 64 位操作系统 (Ref to TonyJiangWJ)
+* `优化` 支持 64 位操作系统 (Ref to [TonyJiangWJ](https://github.com/TonyJiangWJ))
 * `优化` 悬浮窗初始化时同时应用透明度设置 (无需点击后再应用透明度)
 * `优化` 重置文件内容时增加是否为示例代码文件的检测并增加结果提示
 * `优化` 转移打包插件下载地址 GitHub -> JsDelivr
 * `优化` 附加 Zeugma Solutions LocaleHelper 版本 1.5.1
 * `优化` 降级 Android Material 版本 1.6.0-alpha02 -> 1.5.0
 * `优化` 升级 Kotlinx Coroutines 版本 1.6.0-native-mt -> 1.6.0
-* `优化` 升级 OpenCV 版本 3.4.3 -> 4.5.4 -> 4.5.5 (Ref to TonyJiangWJ)
+* `优化` 升级 OpenCV 版本 3.4.3 -> 4.5.4 -> 4.5.5 (Ref to [TonyJiangWJ](https://github.com/TonyJiangWJ))
 * `优化` 升级 Okhttp3 版本 3.10.0 -> 5.0.0-alpha.4 -> 5.0.0-alpha.6
 * `优化` 升级 Android Gradle 插件版本 7.2.0-beta01 -> 7.3.0-alpha06
 * `优化` 升级 Auto.js-ApkBuilder 版本 1.0.1 -> 1.0.3
@@ -107,7 +121,7 @@
 * `修复` toast.dismiss() 可能无效的问题
 * `修复` 客户端模式及服务端模式开关可能无法正常工作的问题
 * `修复` 客户端模式及服务端模式开关状态不能正常刷新的问题
-* `修复` Android 7 解析 UI 模式 text 元素异常 (Ref to TonyJiangWJ) _[`issue #4`](https://github.com/SuperMonster003/AutoJs6/issues/4)_ _[`#9`](https://github.com/SuperMonster003/AutoJs6/issues/9)_
+* `修复` Android 7 解析 UI 模式 text 元素异常 (Ref to [TonyJiangWJ](https://github.com/TonyJiangWJ)) _[`issue #4`](https://github.com/SuperMonster003/AutoJs6/issues/4)_ _[`#9`](https://github.com/SuperMonster003/AutoJs6/issues/9)_
 * `优化` 忽略 sleep() 的 ScriptInterruptedException 异常
 * `优化` 附加 Androidx AppCompat (Legacy) 版本 1.0.2
 * `优化` 升级 Androidx AppCompat 版本 1.4.0 -> 1.4.1
@@ -122,8 +136,8 @@

 ###### 2022/01/01

-* `新增` 连接 VSCode 插件支持客户端 (LAN) 及服务端 (LAN/ADB) 方式 (Ref to Auto.js Pro)
-* `新增` 内置 base64 模块 (Ref to Auto.js Pro)
+* `新增` 连接 VSCode 插件支持客户端 (LAN) 及服务端 (LAN/ADB) 方式 (Ref to [Auto.js Pro](https://g.pro.autojs.org/))
+* `新增` 内置 base64 模块 (Ref to [Auto.js Pro](https://g.pro.autojs.org/))
 * `新增` 增加 isInteger/isNullish/isPlainObject/isPrimitive/isReference 全局方法
 * `新增` 增加 polyfill (Object.getOwnPropertyDescriptors)
 * `新增` 增加 polyfill (Array.prototype.flat)
@@ -159,7 +173,7 @@
 * `优化` 升级 JSON 模块至 2017-06-12 版本并整合 cycle.js
 * `优化` 移除 Activity 前置时的自动检查更新功能并移除检查更新相关按钮
 * `优化` AppOpsKt#isOpPermissionGranted 内部代码逻辑
-* `优化` ResourceMonitor 使用 ReentrantLock 增强安全性 (Ref to TonyJiangWJ)
+* `优化` ResourceMonitor 使用 ReentrantLock 增强安全性 (Ref to [TonyJiangWJ](https://github.com/TonyJiangWJ))
 * `优化` 使用 Maven Central 等仓库替换 JCenter 仓库
 * `优化` 抽离并移除重复的本地库文件
 * `优化` 本地化 CrashReport 版本 2.6.6
--- a/app/src/main/assets/sample/工具/摩斯电码
+++ b/app/src/main/assets/sample/工具/摩斯电码
@@ -17,7 +17,7 @@ console.log('code: ' + morse.code);
 console.log('pattern: ' + morse.pattern);

 // Call vibrate() if you need your device play this morse code by vibration.
-// zh-CN: Call vibrate() if you need your device play this morse code by vibration.
+// zh-CN: 可调用 vibrate() 方法使设备按摩斯电码模式震动.

 // morse.vibrate();

--- a/app/src/main/java/com/stardust/theme/preference/ThemeColorPreferenceCategory.java
+++ b/app/src/main/java/com/stardust/theme/preference/ThemeColorPreferenceCategory.java
@@ -2,6 +2,7 @@ package com.stardust.theme.preference;

 import android.content.Context;
 import android.graphics.Color;
+import android.graphics.Typeface;
 import android.preference.PreferenceCategory;
 import android.util.AttributeSet;
 import android.view.View;
@@ -54,8 +55,10 @@ public class ThemeColorPreferenceCategory extends PreferenceCategory implements
    public View onCreateView(ViewGroup parent) {
        View view = super.onCreateView(parent);
        mTitleTextView = view.findViewById(android.R.id.title);
-        if (mColor != Color.TRANSPARENT)
+        if (mColor != Color.TRANSPARENT) {
            mTitleTextView.setTextColor(mColor);
+        }
+        mTitleTextView.setTypeface(null, Typeface.BOLD);
        return view;
    }

--- a/app/src/main/java/org/autojs/autojs/Pref.java
+++ b/app/src/main/java/org/autojs/autojs/Pref.java
@@ -3,6 +3,7 @@ package org.autojs.autojs;
 import android.content.SharedPreferences;
 import android.os.Environment;

+import androidx.annotation.Nullable;
 import androidx.preference.PreferenceManager;

 import com.stardust.app.GlobalAppContext;
@@ -10,6 +11,9 @@ import com.stardust.autojs.runtime.accessibility.AccessibilityConfig;

 import org.autojs.autojs.autojs.key.GlobalKeyObserver;
 import org.autojs.autojs6.R;
+import org.joda.time.DateTime;
+import org.joda.time.format.DateTimeFormat;
+import org.joda.time.format.DateTimeFormatter;

 import java.io.File;
 import java.util.Objects;
@@ -21,6 +25,7 @@ public class Pref {

    private static final String KEY_SERVER_ADDRESS = "KEY_SERVER_ADDRESS";
    private static final String KEY_FLOATING_MENU_SHOWN = "KEY_FLOATING_MENU_SHOWN";
+    private static final String KEY_LAST_UPDATED_CHECKED = "KEY_LAST_UPDATED_CHECKED";
    private static final String KEY_APP_LANG_INDEX = "KEY_APP_LANG_INDEX";
    private static final String KEY_EDITOR_THEME = "editor.theme";
    private static final String KEY_EDITOR_TEXT_SIZE = "editor.textSize";
@@ -51,6 +56,29 @@ public class Pref {
        return def().getBoolean(getString(R.string.key_use_volume_control_running), true);
    }

+    public static boolean isAutoCheckForUpdatesEnabled() {
+        return def().getBoolean(getString(R.string.key_auto_check_for_updates), true);
+    }
+
+    public static void refreshLastUpdatesCheckedTimestamp() {
+        def().edit().putLong(KEY_LAST_UPDATED_CHECKED, System.currentTimeMillis()).apply();
+    }
+
+    public static long getLastUpdatesCheckedTimestamp() {
+        return def().getLong(KEY_LAST_UPDATED_CHECKED, -1);
+    }
+
+    @Nullable
+    public static String getLastUpdatesCheckedTimeString() {
+        long ts = getLastUpdatesCheckedTimestamp();
+        if (ts < 0) {
+            return null;
+        }
+        DateTime dt = new DateTime(ts);
+        DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy/MM/dd HH:mm");
+        return fmt.print(dt);
+    }
+
    private static String getString(int id) {
        return GlobalAppContext.getString(id);
    }
--- a/app/src/main/java/org/autojs/autojs/build/TinySign.java
+++ b/app/src/main/java/org/autojs/autojs/build/TinySign.java
@@ -39,10 +39,10 @@ public class TinySign {
    private static void doDir(String prefix, File dir, ZipOutputStream zos, DigestOutputStream dos, Manifest m) throws IOException {
        zos.putNextEntry(new ZipEntry(prefix));
        zos.closeEntry();
-        File[] arr$ = dir.listFiles();
+        File[] files = dir.listFiles();

-        if (arr$ != null) {
-            for (File f : arr$) {
+        if (files != null) {
+            for (File f : files) {
                if (f.isFile()) {
                    doFile(prefix + f.getName(), f, zos, dos, m);
                } else {
@@ -72,13 +72,8 @@ public class TinySign {
    private static Manifest generateSF(Manifest manifest) throws NoSuchAlgorithmException, UnsupportedEncodingException {
        MessageDigest md = MessageDigest.getInstance("SHA1");
        PrintStream print = new PrintStream(new DigestOutputStream(new OutputStream() {
-            public void write(byte[] arg0) {
-            }
-
-            public void write(byte[] arg0, int arg1, int arg2) {
-            }
-
-            public void write(int arg0) {
+            @Override
+            public void write(int b) {
            }
        }, md), true, "UTF-8");
        Manifest sf = new Manifest();
@@ -164,10 +159,10 @@ public class TinySign {
    }

    private static void zipAndSha1(File dir, ZipOutputStream zos, DigestOutputStream dos, Manifest m) throws IOException {
-        File[] arr$ = dir.listFiles();
+        File[] files = dir.listFiles();

-        if (arr$ != null) {
-            for (File f : arr$) {
+        if (files != null) {
+            for (File f : files) {
                if (!f.getName().startsWith("META-INF")) {
                    if (f.isFile()) {
                        doFile(f.getName(), f, zos, dos, m);
@@ -191,8 +186,8 @@ public class TinySign {
        public void write(byte[] buffer) throws IOException {
            try {
                this.mSignature.update(buffer);
-            } catch (SignatureException var3) {
-                throw new IOException("SignatureException: " + var3);
+            } catch (SignatureException e) {
+                throw new IOException("SignatureException: " + e);
            }

            this.out.write(buffer);
@@ -201,8 +196,8 @@ public class TinySign {
        public void write(byte[] b, int off, int len) throws IOException {
            try {
                this.mSignature.update(b, off, len);
-            } catch (SignatureException var5) {
-                throw new IOException("SignatureException: " + var5);
+            } catch (SignatureException e) {
+                throw new IOException("SignatureException: " + e);
            }

            this.out.write(b, off, len);
@@ -211,8 +206,8 @@ public class TinySign {
        public void write(int b) throws IOException {
            try {
                this.mSignature.update((byte) b);
-            } catch (SignatureException var3) {
-                throw new IOException("SignatureException: " + var3);
+            } catch (SignatureException e) {
+                throw new IOException("SignatureException: " + e);
            }

            this.out.write(b);
--- a/app/src/main/java/org/autojs/autojs/external/shortcut/Shortcut.java
+++ b/app/src/main/java/org/autojs/autojs/external/shortcut/Shortcut.java
@@ -6,6 +6,7 @@ import android.graphics.Bitmap;
 import android.os.Bundle;

 import org.autojs.autojs.tool.BitmapTool;
+import org.autojs.autojs6.R;

 /**
 * Created by Stardust on 2017/1/20.
@@ -54,7 +55,7 @@ public class Shortcut {

    public Shortcut iconRes(Intent.ShortcutIconResource icon) {
        if (mIcon != null) {
-            throw new IllegalStateException("Cannot set both iconRes and icon");
+            throw new IllegalStateException(mContext.getString(R.string.error_set_both_icon_res_and_icon));
        }
        mIconRes = icon;
        return this;
@@ -67,7 +68,7 @@ public class Shortcut {

    public Shortcut icon(Bitmap icon) {
        if (mIconRes != null) {
-            throw new IllegalStateException("Cannot set both iconRes and icon");
+            throw new IllegalStateException(mContext.getString(R.string.error_set_both_icon_res_and_icon));
        }
        if (icon.getByteCount() > 1024 * 500) {
            mIcon = BitmapTool.scaleBitmap(icon, 200, 200);
--- a/app/src/main/java/org/autojs/autojs/model/explorer/ExplorerChangeEvent.java
+++ b/app/src/main/java/org/autojs/autojs/model/explorer/ExplorerChangeEvent.java
@@ -2,6 +2,10 @@ package org.autojs.autojs.model.explorer;

 import androidx.annotation.NonNull;

+import com.stardust.app.GlobalAppContext;
+
+import org.autojs.autojs6.R;
+
 public class ExplorerChangeEvent {


@@ -73,6 +77,6 @@ public class ExplorerChangeEvent {
            case CHILDREN_CHANGE:
                return "CHILDREN_CHANGE";
        }
-        throw new IllegalArgumentException("action = " + action);
+        throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_illegal_argument, "action", action));
    }
 }
--- a/app/src/main/java/org/autojs/autojs/model/explorer/ExplorerFileItem.java
+++ b/app/src/main/java/org/autojs/autojs/model/explorer/ExplorerFileItem.java
@@ -2,11 +2,12 @@ package org.autojs.autojs.model.explorer;

 import androidx.annotation.NonNull;

+import com.stardust.app.GlobalAppContext;
 import com.stardust.pio.PFile;
-import com.stardust.util.ObjectHelper;
 import com.stardust.util.Objects;

 import org.autojs.autojs.model.script.ScriptFile;
+import org.autojs.autojs6.R;

 import java.io.File;
 import java.util.Arrays;
@@ -24,7 +25,11 @@ public class ExplorerFileItem implements ExplorerItem {
    private final ExplorerPage mParent;

    public ExplorerFileItem(PFile file, ExplorerPage parent) {
-        ObjectHelper.requireNonNull(file, "file");
+        if (file == null) {
+            throw new NullPointerException(GlobalAppContext
+                    .getString(R.string.error_method_called_with_null_argument,
+                            "ExplorerFileItem.constructor", "file"));
+        }
        mFile = file;
        mParent = parent;
    }
--- a/app/src/main/java/org/autojs/autojs/network/UpdateChecker.java
+++ b/app/src/main/java/org/autojs/autojs/network/UpdateChecker.java
@@ -0,0 +1,597 @@
+package org.autojs.autojs.network;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.Build;
+import android.os.Environment;
+import android.os.Handler;
+import android.os.Looper;
+import android.text.Html;
+import android.text.Spanned;
+import android.util.Log;
+import android.view.View;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.afollestad.materialdialogs.DialogAction;
+import com.afollestad.materialdialogs.MaterialDialog;
+import com.afollestad.materialdialogs.internal.MDButton;
+import com.google.android.material.snackbar.BaseTransientBottomBar;
+import com.google.gson.GsonBuilder;
+import com.stardust.app.GlobalAppContext;
+import com.stardust.autojs.core.ui.widget.CustomSnackbar;
+import com.stardust.util.IntentUtil;
+
+import org.autojs.autojs.Pref;
+import org.autojs.autojs.external.fileprovider.AppFileProvider;
+import org.autojs.autojs.network.api.UpdateCheckerApi;
+import org.autojs.autojs.network.download.DownloadManager;
+import org.autojs.autojs.network.entity.VersionInfo;
+import org.autojs.autojs.tool.SimpleObserver;
+import org.autojs.autojs6.R;
+import org.kohsuke.github.GHAsset;
+import org.kohsuke.github.GHRelease;
+import org.kohsuke.github.GHRepository;
+import org.kohsuke.github.GHUser;
+import org.kohsuke.github.GitHub;
+import org.kohsuke.github.MarkdownMode;
+import org.kohsuke.github.PagedIterable;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.Reader;
+import java.util.Properties;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.functions.Consumer;
+import io.reactivex.schedulers.Schedulers;
+import okhttp3.ResponseBody;
+import retrofit2.Retrofit;
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+/**
+ * Created by Stardust on 2017/9/20.
+ * Modified by SuperMonster003 as of Feb 26, 2022.
+ */
+
+public class UpdateChecker {
+
+    private MaterialDialog mUpdateDialog;
+    private MaterialDialog mPendingDialog;
+
+    public enum PromptMode {NONE, DIALOG, SNACKBAR}
+
+    private static final String TAG = UpdateChecker.class.getSimpleName();
+    private final Handler mHandler = new Handler(Looper.getMainLooper());
+    private final Context mContext;
+    private final View mView;
+    private final String mBaseUrl;
+    private final String mUrl;
+    private final PromptMode mPromptMode;
+    private final SimpleObserver<ResponseBody> mCallback;
+    private final Executor mGitHubExecutor = Executors.newSingleThreadExecutor();
+
+    private GitHub mGitHubConnection;
+    private UpdateCheckerApi checkerApi;
+
+    private UpdateChecker(Context context, View view, String baseUrl, String url, PromptMode promptMode, SimpleObserver<ResponseBody> callback) {
+        mContext = context;
+        mView = view;
+        mBaseUrl = baseUrl;
+        mUrl = url;
+        mPromptMode = promptMode;
+        mCallback = callback;
+    }
+
+    public void checkNow() {
+        mPendingDialog = getPendingDialog(mContext, R.string.text_checking_update);
+
+        if (mPromptMode == PromptMode.DIALOG) {
+            mPendingDialog.show();
+        }
+
+        getCheckerApi()
+                .checkForUpdates(mUrl)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(new SimpleObserver<>() {
+                    @Override
+                    public void onNext(ResponseBody responseBody) {
+                        if (mPendingDialog.isShowing()) {
+                            mPendingDialog.dismiss();
+                        }
+                        Pref.refreshLastUpdatesCheckedTimestamp();
+
+                        if (mCallback != null) {
+                            mCallback.onNext(responseBody);
+                            return;
+                        }
+
+                        try {
+                            Properties prop = new Properties();
+                            prop.load(responseBody.byteStream());
+
+                            String versionNameKey = mContext.getString(R.string.key_app_property_version_name);
+                            String versionName = prop.getProperty(versionNameKey);
+
+                            String versionCodeKey = mContext.getString(R.string.key_app_property_version_code);
+                            int versionCode = Integer.parseInt(prop.getProperty(versionCodeKey));
+
+                            VersionInfo versionInfo = new VersionInfo(versionName, versionCode);
+
+                            switch (mPromptMode) {
+                                case DIALOG -> {
+                                    if (versionInfo.isNewer()) {
+                                        showDialog(versionInfo);
+                                    } else {
+                                        GlobalAppContext.toast(R.string.text_is_latest_version);
+                                    }
+                                }
+                                case SNACKBAR -> {
+                                    if (versionInfo.isNewer()) {
+                                        showSnackBar(versionInfo);
+                                    }
+                                }
+                                default -> throw new IllegalStateException(mContext.getString(
+                                        R.string.error_illegal_argument,
+                                        "promptMode", mPromptMode));
+                            }
+                        } catch (Exception e) {
+                            e.printStackTrace();
+                            GlobalAppContext.toast(mContext.getString(R.string.error_failed_to_parse_version_info));
+                        }
+                    }
+
+                    @Override
+                    public void onError(@NonNull Throwable e) {
+                        e.printStackTrace();
+
+                        if (mPendingDialog.isShowing()) {
+                            mPendingDialog.dismiss();
+                        }
+
+                        if (mCallback != null) {
+                            mCallback.onError(e);
+                            return;
+                        }
+
+                        if (mPromptMode == PromptMode.DIALOG) {
+                            new MaterialDialog.Builder(mContext)
+                                    .title(R.string.error_check_for_update)
+                                    .content(e.toString())
+                                    .positiveText(R.string.text_cancel)
+                                    .canceledOnTouchOutside(false)
+                                    .build()
+                                    .show();
+                        }
+                    }
+                });
+    }
+
+    private void showDialog(@NonNull VersionInfo versionInfo) {
+        showDialog(versionInfo, null);
+    }
+
+    private void showDialog(@NonNull VersionInfo versionInfo, Context context) {
+        // TODO by SuperMonster003 on May 30, 2022.
+        //  ! A. Updates ignorance (and settings).
+        //  ! B. VersionInfo: *.properties / *.json.
+
+        Context ctx = context != null ? context : mContext;
+
+        String propVersion = versionInfo.getVersionName();
+        if (propVersion == null) {
+            new MaterialDialog.Builder(ctx)
+                    .title(R.string.error_check_for_update)
+                    .content(R.string.error_parse_version_info)
+                    .positiveText(R.string.dialog_button_back)
+                    .build()
+                    .show();
+            return;
+        }
+
+        mUpdateDialog = new MaterialDialog.Builder(ctx)
+                .title(propVersion)
+                .content(R.string.text_getting_release_notes)
+                .neutralText(R.string.dialog_button_ignore_current_update)
+                .neutralColor(ctx.getColor(R.color.dialog_button_warn))
+                .negativeText(R.string.dialog_button_back)
+                .negativeColor(ctx.getColor(R.color.dialog_button_default))
+                .positiveText(R.string.dialog_button_update_now)
+                .positiveColor(ctx.getColor(R.color.dialog_button_unavailable))
+                .autoDismiss(false)
+                .cancelable(false)
+                .build();
+
+        mPendingDialog = getPendingDialog(ctx, R.string.text_preparing);
+
+        MDButton neutralButton = mUpdateDialog.getActionButton(DialogAction.NEUTRAL);
+        neutralButton.setOnClickListener(v -> {
+            // TODO by SuperMonster003 on May 30, 2022.
+            //  ! Updates ignorance.
+
+            new MaterialDialog.Builder(ctx)
+                    .title(R.string.text_prompt)
+                    .content(R.string.text_under_development_content)
+                    .positiveText(R.string.dialog_button_back)
+                    .build()
+                    .show();
+        });
+
+        MDButton negativeButton = mUpdateDialog.getActionButton(DialogAction.NEGATIVE);
+        negativeButton.setOnClickListener(v -> mUpdateDialog.dismiss());
+
+        MDButton positiveButton = mUpdateDialog.getActionButton(DialogAction.POSITIVE);
+        positiveButton.setOnClickListener(null);
+
+        mUpdateDialog.show();
+
+        // TODO by SuperMonster003 on May 31, 2022.
+        //  ! Android 7.x (N and N_MR1) compatibility.
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+            mUpdateDialog.dismiss();
+            new MaterialDialog.Builder(ctx)
+                    .title(R.string.error_check_for_update)
+                    .content(R.string.error_sdk_lower_than_o_not_supported_yet)
+                    .positiveText(R.string.text_cancel)
+                    .cancelable(false)
+                    .build()
+                    .show();
+            return;
+        }
+
+        mGitHubExecutor.execute(() -> {
+            GitHub github = connectToGitHubIfNeeded();
+            if (github == null) {
+                setDialogContent(mUpdateDialog, R.string.error_cannot_connect_to_github);
+                return;
+            }
+
+            String userName = ctx.getString(R.string.developer_full_name);
+            String repoName = ctx.getString(R.string.app_name);
+            GHRepository repo = getGitHubRepo(github, userName, repoName);
+            if (repo == null) {
+                setDialogContent(mUpdateDialog, ctx.getString(R.string.error_invalid_github_repo, repoName));
+                return;
+            }
+
+            GHRelease release = getGitHubRelease(repo);
+            if (release == null) {
+                setDialogContent(mUpdateDialog, R.string.error_get_github_latest_release);
+                return;
+            }
+
+            String releaseTag = release.getTagName();
+            if (!checkReleaseTagMatchesProp(releaseTag, propVersion)) {
+                setDialogContent(mUpdateDialog, R.string.error_corresponding_github_release_may_not_published);
+                return;
+            }
+
+            String rawHtmlContent = getRawHtmlFromRelease(repo, release);
+            Spanned htmlContent = Html.fromHtml(rawHtmlContent, Html.FROM_HTML_MODE_COMPACT);
+            if (htmlContent.toString().isEmpty()) {
+                setDialogContent(mUpdateDialog, R.string.text_empty_release_note);
+            } else {
+                setDialogContent(mUpdateDialog, htmlContent);
+            }
+
+            PagedIterable<GHAsset> assets = getGitHubAssets(release);
+            if (assets == null) {
+                setDialogContent(mUpdateDialog, R.string.error_empty_github_release_assets);
+                return;
+            }
+
+            setDialogUpdateButton(ctx, assets, versionInfo);
+        });
+    }
+
+    @Nullable
+    private PagedIterable<GHAsset> getGitHubAssets(GHRelease release) {
+        try {
+            PagedIterable<GHAsset> assets = release.listAssets();
+            if (assets.toArray().length > 0) {
+                return assets;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    @SuppressWarnings("ResultOfMethodCallIgnored")
+    @SuppressLint("CheckResult")
+    private void download(Context ctx, String downloadUrl, String fileName, VersionInfo versionInfo) {
+        File downloadDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+        final String path = new File(downloadDir, fileName).getPath();
+
+        Consumer<File> onNext = file -> {
+            mUpdateDialog = null;
+            IntentUtil.installApkOrToast(ctx, file.getPath(), AppFileProvider.AUTHORITY);
+        };
+
+        Consumer<Throwable> onError = e -> {
+            Log.d(TAG, "onError: printing stack trace");
+            e.printStackTrace();
+
+            String msg = e.getMessage();
+
+            MaterialDialog d = new MaterialDialog.Builder(ctx)
+                    .title(R.string.text_download_failed)
+                    .content(msg == null ? ctx.getString(R.string.error_unknown) : msg)
+                    .negativeText(R.string.text_cancel)
+                    .negativeColor(ctx.getColor(R.color.dialog_button_default))
+                    .onNegative((dialog, which) -> {
+                        dialog.dismiss();
+                        mUpdateDialog = null;
+                    })
+                    .positiveText("")
+                    .positiveColor(ctx.getColor(R.color.dialog_button_failure))
+                    .autoDismiss(false)
+                    .cancelable(false)
+                    .build();
+
+            if (mPendingDialog != null) {
+                mPendingDialog.dismiss();
+            }
+
+            if (mUpdateDialog != null) {
+                d.getActionButton(DialogAction.NEGATIVE).setText(R.string.dialog_button_quit);
+                d.getActionButton(DialogAction.NEGATIVE).setTextColor(ctx.getColor(R.color.dialog_button_caution));
+                d.getActionButton(DialogAction.POSITIVE).setText(R.string.dialog_button_retry);
+                d.getActionButton(DialogAction.POSITIVE).setOnClickListener(v -> {
+                    d.dismiss();
+                    mUpdateDialog.show();
+                });
+            }
+
+            d.show();
+        };
+
+        DownloadManager.getInstance().downloadWithProgress(ctx, downloadUrl, path, versionInfo)
+                .subscribeOn(AndroidSchedulers.mainThread())
+                .subscribe(onNext, onError);
+    }
+
+    private void setDialogUpdateButton(@NonNull Context ctx, PagedIterable<GHAsset> ghAssets, VersionInfo versionInfo) {
+        MDButton positiveButton = mUpdateDialog.getActionButton(DialogAction.POSITIVE);
+        positiveButton.setTextColor(ctx.getColor(R.color.dialog_button_attraction));
+        positiveButton.setOnClickListener(v -> {
+            if (!mUpdateDialog.isShowing()) {
+                return;
+            }
+            mUpdateDialog.dismiss();
+            mPendingDialog.show();
+
+            mGitHubExecutor.execute(() -> {
+                String[] abiList = Build.SUPPORTED_ABIS;
+                String abiBackup = "universal";
+
+                String url = null;
+                String urlBackup = null;
+                String fileName = null;
+                String fileNameBackup = null;
+
+                try {
+                    assets:
+                    for (GHAsset ghAsset : ghAssets) {
+                        String assetName = ghAsset.getName();
+                        String assetUrl = ghAsset.getBrowserDownloadUrl();
+                        for (String abi : abiList) {
+                            String regex = ".*\\b" + abi + "\\b.*";
+                            if (assetName.matches(regex)) {
+                                url = assetUrl;
+                                fileName = assetName;
+                                break assets;
+                            }
+                        }
+                        if (assetName.contains(abiBackup)) {
+                            urlBackup = assetUrl;
+                            fileNameBackup = assetName;
+                        }
+                    }
+                } catch (Exception ignore) {
+                    // Ignored.
+                }
+
+                mPendingDialog.dismiss();
+
+                if (url == null && urlBackup == null) {
+                    mHandler.post(() -> new MaterialDialog.Builder(ctx)
+                            .content(R.string.error_cannot_get_download_url)
+                            .positiveText(R.string.text_cancel)
+                            .positiveColor(ctx.getColor(R.color.dialog_button_default))
+                            .canceledOnTouchOutside(false)
+                            .build()
+                            .show());
+                    return;
+                }
+
+                if (url != null) {
+                    downloadWithHandler(ctx, url, fileName, versionInfo);
+                } else {
+                    GlobalAppContext.toast(R.string.text_github_backup_url_used, Toast.LENGTH_LONG);
+                    downloadWithHandler(ctx, urlBackup, fileNameBackup, versionInfo);
+                }
+            });
+        });
+    }
+
+    private void downloadWithHandler(Context ctx, String url, String fileName, VersionInfo versionInfo) {
+        mHandler.post(() -> download(ctx, url, fileName, versionInfo));
+    }
+
+    private String getRawHtmlFromRelease(GHRepository repo, GHRelease release) {
+        Reader reader;
+        try {
+            reader = repo.renderMarkdown(release.getBody(), MarkdownMode.MARKDOWN);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+        StringBuilder textBuilder = new StringBuilder();
+        try (Reader r = new BufferedReader(reader)) {
+            int c;
+            while ((c = r.read()) != -1) {
+                textBuilder.append((char) c);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+        return textBuilder.toString();
+    }
+
+    private GHRelease getGitHubRelease(GHRepository repo) {
+        try {
+            return repo.getLatestRelease();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private GHRepository getGitHubRepo(GitHub github, String userName, String repoName) {
+        try {
+            GHUser user = github.getUser(userName);
+            return user.getRepository(repoName);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private boolean checkReleaseTagMatchesProp(String releaseTag, String propVersion) {
+        return releaseTag.endsWith(propVersion);
+    }
+
+    private void setDialogContent(MaterialDialog dialog, String content) {
+        mHandler.post(() -> dialog.setContent(content));
+    }
+
+    private void setDialogContent(MaterialDialog dialog, Spanned content) {
+        mHandler.post(() -> dialog.setContent(content));
+    }
+
+    private void setDialogContent(MaterialDialog dialog, int resId) {
+        mHandler.post(() -> dialog.setContent(resId));
+    }
+
+    private GitHub connectToGitHubIfNeeded() {
+        try {
+            if (mGitHubConnection == null) {
+                // FIXME by SuperMonster003 on May 31, 2022.
+                //  ! Given that java.time package was added only in Android O (API 26),
+                //  ! API 24 and 25 will throw an java.lang.NoClassDefFoundError here.
+                mGitHubConnection = GitHub.connectAnonymously();
+            }
+            return mGitHubConnection;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private void showSnackBar(@NonNull VersionInfo versionInfo) {
+        String content = mContext.getString(R.string.text_new_version_found) + ": " + versionInfo.getVersionName();
+
+        CustomSnackbar snackbar = CustomSnackbar.make(mView, content, BaseTransientBottomBar.LENGTH_INDEFINITE);
+        snackbar.setAnimationMode(BaseTransientBottomBar.ANIMATION_MODE_SLIDE)
+                .setActionOne(R.string.text_updates_snack_bar_act_view, v -> showDialog(versionInfo, mView.getContext()))
+                .setActionTwo(R.string.text_updates_snack_bar_act_later, null)
+                .show();
+    }
+
+    private MaterialDialog getPendingDialog(Context context, int content) {
+        // TODO by SuperMonster003 on May 29, 2022.
+        //  ! Add a "CANCEL" button for interruption.
+        //  ! Concurrent programming may be needed.
+
+        return new MaterialDialog.Builder(context)
+                .content(content)
+                .autoDismiss(false)
+                .cancelable(false)
+                .build();
+    }
+
+    public static class Builder {
+        private final Context mContext;
+
+        private View mView;
+        private String mBaseUrl;
+        private String mUrl;
+        private PromptMode mPromptMode = PromptMode.NONE;
+        private SimpleObserver<ResponseBody> mCallback;
+
+        public Builder() {
+            this(GlobalAppContext.get());
+        }
+
+        public Builder(Context context) {
+            mContext = context;
+        }
+
+        public Builder(View view) {
+            this();
+            mView = view;
+        }
+
+        public Builder setBaseUrl(String baseUrl) {
+            this.mBaseUrl = baseUrl;
+            return this;
+        }
+
+        public Builder setUrl(String url) {
+            this.mUrl = url;
+            return this;
+        }
+
+        public Builder setPromptMode(PromptMode promptMode) {
+            this.mPromptMode = promptMode;
+            return this;
+        }
+
+        public Builder setCallback(SimpleObserver<ResponseBody> callback) {
+            this.mCallback = callback;
+            return this;
+        }
+
+        public UpdateChecker build() {
+            ensureUrl();
+            return new UpdateChecker(mContext, mView, mBaseUrl, mUrl, mPromptMode, mCallback);
+        }
+
+        private void ensureUrl() {
+            String regexUrl = "^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
+            if (mBaseUrl != null) {
+                if (!mBaseUrl.matches(regexUrl)) {
+                    System.out.println("Base URL: " + mBaseUrl);
+                    throw new IllegalArgumentException(mContext.getString(R.string.error_illegal_url_argument));
+                }
+            } else {
+                if (!mUrl.matches(regexUrl)) {
+                    System.out.println("URL: " + mUrl);
+                    throw new IllegalArgumentException(mContext.getString(R.string.error_illegal_relative_url_argument_without_base));
+                }
+            }
+        }
+    }
+
+    @NonNull
+    private UpdateCheckerApi getCheckerApi() {
+        if (checkerApi == null) {
+            checkerApi = new Retrofit.Builder()
+                    .baseUrl(mBaseUrl)
+                    .addConverterFactory(GsonConverterFactory.create(new GsonBuilder().setLenient().create()))
+                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+                    .build()
+                    .create(UpdateCheckerApi.class);
+        }
+        return checkerApi;
+    }
+
+}
--- a/app/src/main/java/org/autojs/autojs/network/VersionService.java
+++ b/app/src/main/java/org/autojs/autojs/network/VersionService.java
@@ -1,45 +0,0 @@
-package org.autojs.autojs.network;
-
-import androidx.annotation.NonNull;
-
-import com.google.gson.GsonBuilder;
-import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
-
-import org.autojs.autojs.network.api.UpdateCheckApi;
-import org.autojs.autojs.network.entity.VersionInfo;
-
-import io.reactivex.Observable;
-import io.reactivex.schedulers.Schedulers;
-import retrofit2.Retrofit;
-import retrofit2.converter.gson.GsonConverterFactory;
-
-/**
- * Created by Stardust on 2017/9/20.
- * Modified by SuperMonster003 as of Feb 26, 2022.
- */
-public class VersionService {
-
-    private static final String baseUrl = "https://raw.githubusercontent.com/";
-
-    private static Retrofit mRetrofit;
-
-    public static Observable<VersionInfo> checkForUpdates() {
-        Retrofit mRetrofit = getRetrofit();
-        return mRetrofit.create(UpdateCheckApi.class)
-                .checkForUpdates()
-                .subscribeOn(Schedulers.io());
-    }
-
-    @NonNull
-    private static Retrofit getRetrofit() {
-        if (mRetrofit == null) {
-            mRetrofit = new Retrofit.Builder()
-                    .baseUrl(baseUrl)
-                    .addConverterFactory(GsonConverterFactory.create(new GsonBuilder().setLenient().create()))
-                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
-                    .build();
-        }
-        return mRetrofit;
-    }
-
-}
--- a/app/src/main/java/org/autojs/autojs/network/api/UpdateCheckerApi.java
+++ b/app/src/main/java/org/autojs/autojs/network/api/UpdateCheckerApi.java
@@ -1,19 +1,23 @@
 package org.autojs.autojs.network.api;

-import org.autojs.autojs.network.entity.VersionInfo;
+import java.io.InputStream;

 import io.reactivex.Observable;
+import okhttp3.ResponseBody;
 import retrofit2.http.GET;
 import retrofit2.http.Headers;
+import retrofit2.http.Streaming;
+import retrofit2.http.Url;

 /**
 * Created by Stardust on 2017/9/20.
 * Modified by SuperMonster003 as of Feb 28, 2022.
 */
-public interface UpdateCheckApi {
+public interface UpdateCheckerApi {

-    @GET("/SuperMonster003/AutoJs6/master/project-versions.json")
+    @Streaming
+    @GET()
    @Headers("Cache-Control: no-cache")
-    Observable<VersionInfo> checkForUpdates();
+    Observable<ResponseBody> checkForUpdates(@Url String url);

 }
--- a/app/src/main/java/org/autojs/autojs/network/download/DownloadManager.java
+++ b/app/src/main/java/org/autojs/autojs/network/download/DownloadManager.java
@@ -1,19 +1,25 @@
 package org.autojs.autojs.network.download;

-import com.stardust.app.GlobalAppContext;
-
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.res.ColorStateList;
 import android.util.Log;
+import android.widget.ProgressBar;

+import androidx.annotation.Nullable;
+
+import com.afollestad.materialdialogs.DialogAction;
 import com.afollestad.materialdialogs.MaterialDialog;
-import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
+import com.afollestad.materialdialogs.internal.MDButton;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.concurrent.VolatileBox;
 import com.stardust.pio.PFiles;

-import org.autojs.autojs6.R;
 import org.autojs.autojs.network.api.DownloadApi;
+import org.autojs.autojs.network.entity.VersionInfo;
 import org.autojs.autojs.tool.SimpleObserver;
+import org.autojs.autojs.tool.UpdateUtils;
+import org.autojs.autojs6.R;

 import java.io.File;
 import java.io.FileOutputStream;
@@ -21,17 +27,21 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
+import java.util.Locale;
 import java.util.concurrent.ConcurrentHashMap;

 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.Disposable;
 import io.reactivex.schedulers.Schedulers;
 import io.reactivex.subjects.PublishSubject;
+import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
 import okhttp3.ResponseBody;
 import retrofit2.Retrofit;
+import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;

 /**
 * Created by Stardust on 2017/10/20.
@@ -40,32 +50,38 @@ public class DownloadManager {

    private static final String LOG_TAG = "DownloadManager";
    private static DownloadManager sInstance;
-
    private static final int RETRY_COUNT = 3;
+
    private final DownloadApi mDownloadApi;
    private final ConcurrentHashMap<String, VolatileBox<Boolean>> mDownloadStatuses = new ConcurrentHashMap<>();

+    private Disposable mDisposable;
+
    public DownloadManager() {
        Retrofit mRetrofit = new Retrofit.Builder()
-                .baseUrl("https://www.autojs.org")
+                .baseUrl(UpdateUtils.BASE_URL)
                .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
-                .client(new OkHttpClient.Builder()
-                        .addInterceptor(chain -> {
-                            Request request = chain.request();
-                            Response response = chain.proceed(request);
-                            int tryCount = 0;
-                            while (!response.isSuccessful() && tryCount < RETRY_COUNT) {
-                                tryCount++;
-                                response = chain.proceed(request);
-                            }
-                            return response;
-                        })
-                        .build()
-                )
+                .client(getOkHttpClient())
                .build();
+
        mDownloadApi = mRetrofit.create(DownloadApi.class);
    }

+    private OkHttpClient getOkHttpClient() {
+        Interceptor interceptor = chain -> {
+            Request request = chain.request();
+            Response response = chain.proceed(request);
+            int tryCount = 0;
+            while (!response.isSuccessful() && tryCount < RETRY_COUNT) {
+                tryCount++;
+                response = chain.proceed(request);
+            }
+            return response;
+        };
+        return new OkHttpClient.Builder()
+                .addInterceptor(interceptor)
+                .build();
+    }

    public static DownloadManager getInstance() {
        if (sInstance == null) {
@@ -74,6 +90,11 @@ public class DownloadManager {
        return sInstance;
    }

+    public void disposeIfNeeded() {
+        if (mDisposable != null) {
+            mDisposable.dispose();
+        }
+    }

    public static String parseFileNameLocally(String url) {
        int i = url.lastIndexOf('-');
@@ -89,7 +110,7 @@ public class DownloadManager {

    @SuppressWarnings("ResultOfMethodCallIgnored")
    @SuppressLint("CheckResult")
-    public Observable<Integer> download(String url, String path) {
+    public Observable<ProgressInfo> download(String url, String path) {
        DownloadTask task = new DownloadTask(url, path);
        mDownloadApi.download(url)
                .subscribeOn(Schedulers.io())
@@ -98,26 +119,73 @@ public class DownloadManager {
    }

    public Observable<File> downloadWithProgress(Context context, String url, String path) {
-        String fileName = DownloadManager.parseFileNameLocally(url);
-        return download(url, path, createDownloadProgressDialog(context, url, fileName));
+        String content = context.getString(R.string.text_file_name) + ": " + DownloadManager.parseFileNameLocally(url);
+        return downloadWithProgress(context, url, path, content);
    }

-    private MaterialDialog createDownloadProgressDialog(Context context, String url, String fileName) {
-        return new MaterialDialog.Builder(context)
-                .progress(false, 100)
-                .title(fileName)
+    public Observable<File> downloadWithProgress(Context context, String url, String path, VersionInfo versionInfo) {
+        return download(context, url, path, createDownloadProgressDialog(context, url, versionInfo, null));
+    }
+
+    public Observable<File> downloadWithProgress(Context context, String url, String path, String content) {
+        return download(context, url, path, createDownloadProgressDialog(context, url, null, content));
+    }
+
+    private MaterialDialog createDownloadProgressDialog(Context context, String url, @Nullable VersionInfo versionInfo, @Nullable String content) {
+        MaterialDialog d = new MaterialDialog.Builder(context)
+                .title(context.getString(R.string.text_downloading))
+                .positiveText(R.string.dialog_button_cancel_download)
+                .onPositive((dialog, which) -> {
+                    dialog.dismiss();
+                    DownloadManager.getInstance().cancelDownload(url);
+                })
+                .progress(false, 100, true)
                .cancelable(false)
-                .positiveText(R.string.text_cancel_download)
-                .onPositive((dialog, which) -> DownloadManager.getInstance().cancelDownload(url))
+                .autoDismiss(false)
                .show();
+
+        String contentText = versionInfo != null ? versionInfo.toString() : content;
+        if (contentText != null) {
+            d.setContent(contentText);
+        }
+
+        d.setProgressNumberFormat(context.getString(R.string.text_half_ellipsis));
+
+        ProgressBar progressBar = d.getProgressBar();
+        progressBar.setProgressTintList(ColorStateList.valueOf(context.getColor(R.color.dialog_progress_download_tint)));
+        progressBar.setProgressBackgroundTintList(ColorStateList.valueOf(context.getColor(R.color.dialog_progress_download_bg_tint)));
+
+        MDButton positiveButton = d.getActionButton(DialogAction.POSITIVE);
+        positiveButton.setTextColor(context.getColor(R.color.dialog_progress_download_act_btn));
+
+        return d;
    }

-    private Observable<File> download(String url, String path, MaterialDialog progressDialog) {
+    private Observable<File> download(Context context, String url, String path, MaterialDialog progressDialog) {
        PublishSubject<File> subject = PublishSubject.create();
-        DownloadManager.getInstance().download(url, path)
+        DownloadManager downloadMgr = DownloadManager.getInstance();
+        downloadMgr.download(url, path)
                .observeOn(AndroidSchedulers.mainThread())
-                .doOnNext(progressDialog::setProgress)
+                .doOnNext(o -> {
+                    // 10,000 KB (around but less than 10 MB)
+                    int megaThreshold = 10000 * (1 << 10);
+                    if (o.getTotalBytes() > megaThreshold) {
+                        progressDialog.setProgressNumberFormat(String.format(Locale.getDefault(),
+                                context.getString(R.string.format_dialog_progress_number_format_mega_bytes),
+                                o.getReadMegaBytes(), o.getTotalMegaBytes()));
+                    } else {
+                        progressDialog.setProgressNumberFormat(String.format(Locale.getDefault(),
+                                context.getString(R.string.format_dialog_progress_number_format_kilo_bytes),
+                                o.getReadKiloBytes(), o.getTotalKiloBytes()));
+                    }
+                    progressDialog.setProgress(o.getProgress());
+                })
                .subscribe(new SimpleObserver<>() {
+                    @Override
+                    public void onSubscribe(Disposable disposable) {
+                        mDisposable = disposable;
+                    }
+
                    @Override
                    public void onComplete() {
                        progressDialog.dismiss();
@@ -129,6 +197,8 @@ public class DownloadManager {
                    public void onError(Throwable error) {
                        Log.e(LOG_TAG, "Download failed", error);
                        progressDialog.dismiss();
+                        disposeIfNeeded();
+                        getOkHttpClient().dispatcher().cancelAll();
                        subject.onError(error);
                    }
                });
@@ -142,6 +212,11 @@ public class DownloadManager {
        }
    }

+    public boolean isCancelled(String url) {
+        VolatileBox<Boolean> status = mDownloadStatuses.get(url);
+        return status != null && !status.get();
+    }
+
    private class DownloadTask {

        private final String mUrl;
@@ -149,24 +224,27 @@ public class DownloadManager {
        private final VolatileBox<Boolean> mStatus;
        private InputStream mInputStream;
        private FileOutputStream mFileOutputStream;
-        private final PublishSubject<Integer> mProgress;
+        private final PublishSubject<ProgressInfo> mProgress;

        public DownloadTask(String url, String path) {
            mUrl = url;
            mPath = path;
            mStatus = new VolatileBox<>(true);
            VolatileBox<Boolean> previous = mDownloadStatuses.put(mUrl, mStatus);
-            if (previous != null)
+            if (previous != null) {
                previous.set(false);
+            }
            mProgress = PublishSubject.create();
        }

-        private void startImpl(ResponseBody body) throws IOException {
+        private void startImpl(ResponseBody body) throws Exception {
            byte[] buffer = new byte[4096];
            mFileOutputStream = new FileOutputStream(mPath);
            mInputStream = body.byteStream();
            long total = body.contentLength();
-            long read = 0;
+
+            ProgressInfo o = new ProgressInfo(total);
+
            while (true) {
                if (!mStatus.get()) {
                    onCancel();
@@ -176,52 +254,51 @@ public class DownloadManager {
                if (len == -1) {
                    break;
                }
-                read += len;
+                o.incrementRead(len);
                mFileOutputStream.write(buffer, 0, len);
-                if (total > 0) {
-                    mProgress.onNext((int) (100 * read / total));
+                if (o.getTotalBytes() > 0) {
+                    mProgress.onNext(o);
                }
            }
            mProgress.onComplete();
            recycle();
        }

-        public void start(ResponseBody body) {
-            try {
-                PFiles.ensureDir(mPath);
-                startImpl(body);
-            } catch (Exception e) {
-                mProgress.onError(e);
-            }
+        public void start(ResponseBody body) throws Exception {
+            PFiles.ensureDir(mPath);
+            startImpl(body);
        }

        private void onCancel() {
+            GlobalAppContext.toast(R.string.text_download_cancelled);
            recycle();
            // TODO: 2017/12/6 notify?
        }

        public void recycle() {
+            // FIXME by SuperMonster003 on May 31, 2022.
+            //  ! Seems like none of the ways below could stop the downloading process.
+            //  ! Even worse, progress may stuck at around 99% and suspend.
+            // disposeIfNeeded();
+            // getOkHttpClient().dispatcher().cancelAll();
+            // body.close();
+
            mDownloadStatuses.remove(mUrl);
-            if (mInputStream != null) {
-                try {
-                    mInputStream.close();
-                } catch (IOException ignored) {
-
-                }
+            try {
+                mInputStream.close();
+            } catch (IOException ignored) {
+                // Ignored.
            }
-            if (mFileOutputStream != null) {
-                try {
-                    mFileOutputStream.close();
-                } catch (IOException ignored) {
-                }
+            try {
+                mFileOutputStream.close();
+            } catch (IOException ignored) {
+                // Ignored.
            }
-
        }

-        public PublishSubject<Integer> progress() {
+        public PublishSubject<ProgressInfo> progress() {
            return mProgress;
        }

-
    }
 }
--- a/app/src/main/java/org/autojs/autojs/network/download/ProgressInfo.java
+++ b/app/src/main/java/org/autojs/autojs/network/download/ProgressInfo.java
@@ -0,0 +1,58 @@
+package org.autojs.autojs.network.download;
+
+/**
+ * Created by SuperMonster003 on May 30, 2022.
+ */
+
+public class ProgressInfo {
+    private long mRead = 0;
+    private long mTotal;
+
+    public ProgressInfo(long contentLength) {
+        mTotal = contentLength;
+    }
+
+    public long getTotalBytes() {
+        return mTotal;
+    }
+
+    public float getTotalKiloBytes() {
+        return (float) (mTotal / Math.pow(2, 10));
+    }
+
+    public float getTotalMegaBytes() {
+        return (float) (mTotal / Math.pow(2, 20));
+    }
+
+    public void setTotal(long total) {
+        mTotal = total;
+    }
+
+    public void incrementTotal(long i) {
+        mTotal += i;
+    }
+
+    public long getReadBytes() {
+        return mRead;
+    }
+
+    public float getReadKiloBytes() {
+        return (float) (mRead / Math.pow(2, 10));
+    }
+
+    public float getReadMegaBytes() {
+        return (float) (mRead / Math.pow(2, 20));
+    }
+
+    public void setRead(long read) {
+        mRead = read;
+    }
+
+    public void incrementRead(long i) {
+        mRead += i;
+    }
+
+    public int getProgress() {
+        return (int) (mRead * 100 / mTotal);
+    }
+}
--- a/app/src/main/java/org/autojs/autojs/network/entity/VersionInfo.java
+++ b/app/src/main/java/org/autojs/autojs/network/entity/VersionInfo.java
@@ -2,27 +2,63 @@ package org.autojs.autojs.network.entity;

 import androidx.annotation.NonNull;

+import com.stardust.app.GlobalAppContext;
+
 import org.autojs.autojs6.BuildConfig;
+import org.autojs.autojs6.R;
+
+import java.text.MessageFormat;

 /**
 * Created by Stardust on 2017/9/20.
+ * Modified by SuperMonster003 as of May 29, 2022.
 */
 public class VersionInfo {

-    public int appVersionCode;
-    public String appVersionName;
+    private String mVersionName;
+    private int mVersionCode;
+
+    public VersionInfo(@NonNull String propertiesFileRawString) {
+        String regexVersionName = "VERSION_NAME=.+";
+        String regexVersionCode = "VERSION_BUILD=.+";
+        for (String string : propertiesFileRawString.split("\n")) {
+            if (string.matches(regexVersionName)) {
+                mVersionName = string.split("=")[1];
+            } else if (string.matches(regexVersionCode)) {
+                mVersionCode = Integer.parseInt(string.split("=")[1]);
+            }
+            if (mVersionName != null && mVersionCode > 0) {
+                break;
+            }
+        }
+    }
+
+    public VersionInfo(@NonNull String versionName, int versionCode) {
+        mVersionName = versionName;
+        mVersionCode = versionCode;
+    }

    public boolean isNewer() {
-        return appVersionCode > BuildConfig.VERSION_CODE;
+        return mVersionCode > BuildConfig.VERSION_CODE;
+    }
+
+    public boolean isNotIgnored() {
+        // TODO by SuperMonster003 on May 30, 2022.
+        return true;
    }

    @NonNull
    @Override
    public String toString() {
-        return "UpdateInfo{" +
-                "appVersionCode=" + appVersionCode +
-                ", appVersionName='" + appVersionName + '\'' +
-                '}';
+        return MessageFormat.format("{0}: {1} ({2})", GlobalAppContext.getString(R.string.text_version), mVersionName, mVersionCode);
+    }
+
+    public String getVersionName() {
+        return mVersionName;
+    }
+
+    public int getVersionCode() {
+        return mVersionCode;
    }

 }
--- a/app/src/main/java/org/autojs/autojs/pluginclient/JsonSocket.java
+++ b/app/src/main/java/org/autojs/autojs/pluginclient/JsonSocket.java
@@ -21,6 +21,7 @@ import com.stardust.autojs.runtime.api.Device;
 import com.stardust.util.MapBuilder;

 import org.autojs.autojs6.BuildConfig;
+import org.autojs.autojs6.R;

 import java.io.BufferedOutputStream;
 import java.io.BufferedReader;
@@ -167,7 +168,7 @@ abstract public class JsonSocket extends Socket {
        } else if (value instanceof JsonElement) {
            data.add(key, (JsonElement) value);
        } else {
-            throw new IllegalArgumentException("cannot put value " + value + " into json");
+            throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_put_value_into_json, value));
        }
    }

--- a/app/src/main/java/org/autojs/autojs/timing/TimedTask.java
+++ b/app/src/main/java/org/autojs/autojs/timing/TimedTask.java
@@ -6,10 +6,12 @@ import android.content.Intent;

 import androidx.annotation.NonNull;

+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.execution.ExecutionConfig;

 import org.autojs.autojs.external.ScriptIntents;
 import org.autojs.autojs.storage.database.BaseModel;
+import org.autojs.autojs6.R;
 import org.joda.time.DateTime;
 import org.joda.time.DateTimeConstants;
 import org.joda.time.LocalDateTime;
@@ -100,7 +102,7 @@ public class TimedTask extends BaseModel {
            dayOfWeek++;
            nextTimeMillis += TimeUnit.DAYS.toMillis(1);
        }
-        throw new IllegalStateException("Should not happen! timeFlag = " + mTimeFlag + ", dayOfWeek = " + DateTime.now().getDayOfWeek());
+        return -1;
    }

    public static long getDayOfWeekTimeFlag(int dayOfWeek) {
@@ -127,7 +129,7 @@ public class TimedTask extends BaseModel {
                return FLAG_FRIDAY;

        }
-        throw new IllegalArgumentException("dayOfWeek = " + dayOfWeek);
+        throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_illegal_argument, "dayOfWeek", dayOfWeek));
    }

    public long getMillis() {
--- a/app/src/main/java/org/autojs/autojs/tool/ConsoleTool.java
+++ b/app/src/main/java/org/autojs/autojs/tool/ConsoleTool.java
@@ -8,10 +8,16 @@ import org.autojs.autojs.ui.log.LogActivity_;

 public class ConsoleTool {

-    public static void launch() {
-        LogActivity_.intent(GlobalAppContext.get())
-                .flags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                .start();
+    public static boolean launch() {
+        try {
+            LogActivity_.intent(GlobalAppContext.get())
+                    .flags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                    .start();
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
    }

 }
--- a/app/src/main/java/org/autojs/autojs/tool/UpdateUtils.java
+++ b/app/src/main/java/org/autojs/autojs/tool/UpdateUtils.java
@@ -0,0 +1,59 @@
+package org.autojs.autojs.tool;
+
+import android.content.Context;
+import android.view.View;
+
+import com.stardust.autojs.annotation.ScriptInterface;
+
+import org.autojs.autojs.network.UpdateChecker;
+import org.autojs.autojs.network.UpdateChecker.PromptMode;
+
+import okhttp3.ResponseBody;
+
+/**
+ * Created by SuperMonster003 on May 29, 2022.
+ */
+
+public class UpdateUtils {
+
+    public static String BASE_URL = "https://raw.githubusercontent.com/";
+    public static String RELATIVE_URL = "/SuperMonster003/AutoJs6/master/version.properties";
+    public static String URL = BASE_URL + RELATIVE_URL.substring(1);
+
+    @ScriptInterface
+    public static UpdateChecker getDialogChecker(Context context, String url, SimpleObserver<ResponseBody> callback) {
+        return getBuilder(context, url, callback)
+                .setPromptMode(PromptMode.DIALOG)
+                .build();
+    }
+
+    public static UpdateChecker getDialogChecker(Context context) {
+        return getDialogChecker(context, null, null);
+    }
+
+    @ScriptInterface
+    public static UpdateChecker getSnackbarChecker(View view, String url, SimpleObserver<ResponseBody> callback) {
+        return getBuilder(view, url, callback)
+                .setPromptMode(PromptMode.SNACKBAR)
+                .build();
+    }
+
+    public static UpdateChecker getSnackbarChecker(View view) {
+        return getSnackbarChecker(view, null, null);
+    }
+
+    private static UpdateChecker.Builder getBuilder(Context context, String url, SimpleObserver<ResponseBody> callback) {
+        return new UpdateChecker.Builder(context)
+                .setBaseUrl(BASE_URL)
+                .setUrl(url != null ? url : RELATIVE_URL)
+                .setCallback(callback);
+    }
+
+    private static UpdateChecker.Builder getBuilder(View view, String url, SimpleObserver<ResponseBody> callback) {
+        return new UpdateChecker.Builder(view)
+                .setBaseUrl(BASE_URL)
+                .setUrl(url != null ? url : RELATIVE_URL)
+                .setCallback(callback);
+    }
+
+}
--- a/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/EditActivity.java
@@ -29,12 +29,12 @@ import com.stardust.pio.PFiles;
 import org.androidannotations.annotations.AfterViews;
 import org.androidannotations.annotations.EActivity;
 import org.androidannotations.annotations.ViewById;
-import org.autojs.autojs6.R;
 import org.autojs.autojs.storage.file.TmpScriptFiles;
 import org.autojs.autojs.theme.dialog.ThemeColorMaterialDialogBuilder;
 import org.autojs.autojs.tool.Observers;
 import org.autojs.autojs.ui.BaseActivity;
 import org.autojs.autojs.ui.main.MainActivity_;
+import org.autojs.autojs6.R;

 import java.io.File;
 import java.io.IOException;
@@ -158,11 +158,29 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
        Log.d(LOG_TAG, "onActionModeStarted: " + mode);
        Menu menu = mode.getMenu();
        MenuItem item = menu.getItem(menu.size() - 1);
-        menu.add(item.getGroupId(), R.id.action_delete_line, 10000, R.string.text_delete_line);
-        menu.add(item.getGroupId(), R.id.action_copy_line, 20000, R.string.text_copy_line);
+        addMenuItem(menu, item.getGroupId(), R.id.action_delete_line, 10000, R.string.text_delete_line, () -> mEditorMenu.deleteLine());
+        addMenuItem(menu, item.getGroupId(), R.id.action_copy_line, 20000, R.string.text_copy_line, () -> mEditorMenu.copyLine());
        super.onActionModeStarted(mode);
    }

+    private void addMenuItem(Menu menu, int groupId, int itemId, int order, int titleRes, Runnable runnable) {
+        try {
+            menu.add(groupId, itemId, order, titleRes).setOnMenuItemClickListener(item -> {
+                try {
+                    runnable.run();
+                    return true;
+                } catch (Exception e) {
+                    e.printStackTrace();
+                    return false;
+                }
+            });
+        } catch (Exception e) {
+            // @Example android.content.res.Resources.NotFoundException
+            //  ! on MIUI devices (maybe more)
+            e.printStackTrace();
+        }
+    }
+
    @Override
    public void onSupportActionModeStarted(@NonNull androidx.appcompat.view.ActionMode mode) {
        Log.d(LOG_TAG, "onSupportActionModeStarted: mode = " + mode);
@@ -215,14 +233,17 @@ public class EditActivity extends BaseActivity implements OnActivityResultDelega
        new ThemeColorMaterialDialogBuilder(this)
                .title(R.string.text_prompt)
                .content(R.string.edit_exit_without_save_warn)
-                .positiveText(R.string.text_cancel)
-                .negativeText(R.string.text_save_and_exit)
-                .neutralText(R.string.text_exit_directly)
-                .onNegative((dialog, which) -> {
+                .neutralText(R.string.text_back)
+                .neutralColor(getColor(R.color.dialog_button_default))
+                .negativeText(R.string.text_exit_directly)
+                .negativeColor(getColor(R.color.dialog_button_caution))
+                .positiveText(R.string.text_save_and_exit)
+                .positiveColor(getColor(R.color.dialog_button_hint))
+                .onNegative((dialog, which) -> finishAndRemoveFromRecents())
+                .onPositive((dialog, which) -> {
                    mEditorView.saveFile();
                    finishAndRemoveFromRecents();
                })
-                .onNeutral((dialog, which) -> finishAndRemoveFromRecents())
                .show();
    }

--- a/app/src/main/java/org/autojs/autojs/ui/edit/EditorMenu.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/EditorMenu.java
@@ -16,6 +16,7 @@ import com.afollestad.materialdialogs.MaterialDialog;
 import com.stardust.autojs.script.JavaScriptSource;
 import com.stardust.pio.PFiles;

+import org.autojs.autojs.tool.ConsoleTool;
 import org.autojs.autojs6.R;
 import org.autojs.autojs.model.indices.AndroidClass;
 import org.autojs.autojs.model.indices.ClassSearchingItem;
@@ -23,7 +24,6 @@ import org.autojs.autojs.ui.project.BuildActivity;
 import org.autojs.autojs.ui.project.BuildActivity_;
 import org.autojs.autojs.ui.common.NotAskAgainDialog;
 import org.autojs.autojs.ui.edit.editor.CodeEditor;
-import org.autojs.autojs.ui.log.LogActivity_;
 import org.autojs.autojs.theme.dialog.ThemeColorMaterialDialogBuilder;

 import com.stardust.util.ClipboardUtil;
@@ -54,12 +54,10 @@ public class EditorMenu {
    public boolean onOptionsItemSelected(MenuItem item) {
        int itemId = item.getItemId();
        if (itemId == R.id.action_log) {
-            showLog();
-            return true;
+            return ConsoleTool.launch();
        }
        if (itemId == R.id.action_force_stop) {
-            forceStop();
-            return true;
+            return tryDoing(mEditorView::forceStop);
        }
        return onEditOptionsSelected(item)
                || onJumpOptionsSelected(item)
@@ -79,8 +77,7 @@ public class EditorMenu {
                    .content(R.string.hint_long_click_run_to_debug)
                    .positiveText(R.string.text_ok)
                    .show();
-            mEditorView.debug();
-            return true;
+            return tryDoing(mEditorView::debug);
        }
        if (itemId == R.id.action_remove_all_breakpoints) {
            mEditor.removeAllBreakpoints();
@@ -118,24 +115,20 @@ public class EditorMenu {
    private boolean onMoreOptionsSelected(MenuItem item) {
        int itemId = item.getItemId();
        if (itemId == R.id.action_console) {
-            showConsole();
-            return true;
+            return tryDoing(mEditorView::showConsole);
        }
        if (itemId == R.id.action_import_java_class) {
            importJavaPackageOrClass();
            return true;
        }
        if (itemId == R.id.action_editor_text_size) {
-            mEditorView.selectTextSize();
-            return true;
+            return tryDoing(mEditorView::selectTextSize);
        }
        if (itemId == R.id.action_editor_theme) {
-            mEditorView.selectEditorTheme();
-            return true;
+            return tryDoing(mEditorView::selectEditorTheme);
        }
        if (itemId == R.id.action_open_by_other_apps) {
-            openByOtherApps();
-            return true;
+            return tryDoing(mEditorView::openByOtherApps);
        }
        if (itemId == R.id.action_info) {
            showInfo();
@@ -212,20 +205,19 @@ public class EditorMenu {
            return true;
        }
        if (itemId == R.id.action_copy_line) {
-            copyLine();
-            return true;
+            return copyLine();
        }
        if (itemId == R.id.action_delete_line) {
-            deleteLine();
-            return true;
+            return deleteLine();
+        }
+        if (itemId == R.id.action_paste) {
+            return paste();
        }
        if (itemId == R.id.action_clear) {
-            mEditor.setText("");
-            return true;
+            return tryDoing(() -> mEditor.setText(""));
        }
        if (itemId == R.id.action_beautify) {
-            beautifyCode();
-            return true;
+            return tryDoing(mEditorView::beautifyCode);
        }
        return false;
    }
@@ -255,11 +247,12 @@ public class EditorMenu {
    }

    private void showInfo() {
-        Observable.zip(Observable.just(mEditor.getText()), mEditor.getLineCount(), (text, lineCount) -> {
-            String size = PFiles.getHumanReadableSize(text.length());
-            return String.format(Locale.getDefault(), mContext.getString(R.string.format_editor_info),
-                    text.length(), lineCount, size);
-        })
+        Observable
+                .zip(Observable.just(mEditor.getText()), mEditor.getLineCount(), (text, lineCount) -> {
+                    String size = PFiles.getHumanReadableSize(text.length());
+                    return String.format(Locale.getDefault(), mContext.getString(R.string.format_editor_info),
+                            text.length(), lineCount, size);
+                })
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(this::showInfo);

@@ -272,20 +265,21 @@ public class EditorMenu {
                .show();
    }

-    private void copyLine() {
-        mEditor.copyLine();
+    protected boolean copyLine() {
+        return tryDoing(mEditor::copyLine);
    }

-
-    private void deleteLine() {
-        mEditor.deleteLine();
+    protected boolean deleteLine() {
+        return tryDoing(mEditor::deleteLine);
    }

-    private void paste() {
-        CharSequence clip = getClip();
-        if (clip != null) {
-            mEditor.insert(clip.toString());
-        }
+    protected boolean paste() {
+        return tryDoing(() -> {
+            CharSequence clip = getClip();
+            if (clip != null) {
+                mEditor.insert(clip.toString());
+            }
+        });
    }

    @Nullable
@@ -309,25 +303,14 @@ public class EditorMenu {
        Snackbar.make(mEditorView, R.string.text_already_copied_to_clip, Snackbar.LENGTH_SHORT).show();
    }

-
-    private void showLog() {
-        LogActivity_.intent(mContext).start();
-    }
-
-    private void showConsole() {
-        mEditorView.showConsole();
-    }
-
-    private void forceStop() {
-        mEditorView.forceStop();
-    }
-
-    private void openByOtherApps() {
-        mEditorView.openByOtherApps();
-    }
-
-    private void beautifyCode() {
-        mEditorView.beautifyCode();
+    private boolean tryDoing(Runnable callable) {
+        try {
+            callable.run();
+            return true;
+        } catch (Exception ignore) {
+            // Ignored.
+        }
+        return false;
    }

 }
--- a/app/src/main/java/org/autojs/autojs/ui/edit/editor/HVScrollView.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/editor/HVScrollView.java
@@ -15,6 +15,8 @@ import android.view.animation.AnimationUtils;
 import android.widget.FrameLayout;
 import android.widget.Scroller;

+import org.autojs.autojs6.R;
+
 import java.util.List;


@@ -194,40 +196,34 @@ public class HVScrollView extends FrameLayout {

    @Override
    public void addView(View child) {
-        if (getChildCount() > 0) {
-            throw new IllegalStateException("ScrollView can host only one direct child");
-        }
-
+        ensureNotMoreThanOneChild();
        super.addView(child);
    }

    @Override
    public void addView(View child, int index) {
-        if (getChildCount() > 0) {
-            throw new IllegalStateException("ScrollView can host only one direct child");
-        }
-
+        ensureNotMoreThanOneChild();
        super.addView(child, index);
    }

    @Override
    public void addView(View child, ViewGroup.LayoutParams params) {
-        if (getChildCount() > 0) {
-            throw new IllegalStateException("ScrollView can host only one direct child");
-        }
-
+        ensureNotMoreThanOneChild();
        super.addView(child, params);
    }

    @Override
    public void addView(View child, int index, ViewGroup.LayoutParams params) {
-        if (getChildCount() > 0) {
-            throw new IllegalStateException("ScrollView can host only one direct child");
-        }
-
+        ensureNotMoreThanOneChild();
        super.addView(child, index, params);
    }

+    private void ensureNotMoreThanOneChild() {
+        if (getChildCount() > 0) {
+            throw new IllegalStateException(getContext().getString(R.string.error_only_one_child_for_scroll_view));
+        }
+    }
+
    /**
     * @return Returns true this ScrollView can be scrolled
     */
--- a/app/src/main/java/org/autojs/autojs/ui/edit/editor/JavaScriptHighlighter.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/editor/JavaScriptHighlighter.java
@@ -23,7 +23,6 @@ import java.util.concurrent.atomic.AtomicInteger;

 public class JavaScriptHighlighter implements SimpleTextWatcher.AfterTextChangedListener {

-
    public static class HighlightTokens {

        public final int[] colors;
@@ -90,7 +89,6 @@ public class JavaScriptHighlighter implements SimpleTextWatcher.AfterTextChanged
        updateTokens(s.toString());
    }

-
    public void setTheme(Theme theme) {
        mTheme = theme;
    }
@@ -112,7 +110,6 @@ public class JavaScriptHighlighter implements SimpleTextWatcher.AfterTextChanged
            } catch (IOException neverHappen) {
                throw new UncheckedIOException(neverHappen);
            }
-
        });
    }

--- a/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/DebugToolbarFragment.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/DebugToolbarFragment.java
@@ -2,6 +2,8 @@ package org.autojs.autojs.ui.edit.toolbar;

 import android.os.Bundle;
 import android.os.Handler;
+
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.recyclerview.widget.RecyclerView;
 import android.text.TextUtils;
@@ -69,7 +71,7 @@ public class DebugToolbarFragment extends ToolbarFragment implements DebugCallba
    }

    @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mEditorView = findEditorView(view);
        mDebugger = DebuggerSingleton.get();
--- a/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/SearchToolbarFragment.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/SearchToolbarFragment.java
@@ -1,6 +1,8 @@
 package org.autojs.autojs.ui.edit.toolbar;

 import android.os.Bundle;
+
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;

 import android.view.View;
@@ -17,9 +19,12 @@ public class SearchToolbarFragment extends ToolbarFragment {
    public static final String ARGUMENT_SHOW_REPLACE_ITEM = "show_replace_item";

    @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
-        boolean showReplaceItem = getArguments().getBoolean(ARGUMENT_SHOW_REPLACE_ITEM, false);
+        boolean showReplaceItem = false;
+        if (getArguments() != null) {
+            showReplaceItem = getArguments().getBoolean(ARGUMENT_SHOW_REPLACE_ITEM, false);
+        }
        view.findViewById(R.id.replace).setVisibility(showReplaceItem ? View.VISIBLE : View.GONE);
    }

--- a/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/ToolbarFragment.java
+++ b/app/src/main/java/org/autojs/autojs/ui/edit/toolbar/ToolbarFragment.java
@@ -9,6 +9,7 @@ import androidx.fragment.app.Fragment;
 import android.view.View;

 import org.autojs.autojs.ui.edit.EditorView;
+import org.autojs.autojs6.R;

 import java.util.List;

@@ -48,7 +49,7 @@ public abstract class ToolbarFragment extends Fragment implements View.OnClickLi
            view = (View) view.getParent();
        }
        if (!(view instanceof EditorView)) {
-            throw new IllegalStateException("cannot find EditorView from child: " + view);
+            throw new IllegalStateException(getString(R.string.error_cannot_find_editor_view_from_child_view, view));
        }
        return (EditorView) view;
    }
--- a/app/src/main/java/org/autojs/autojs/ui/error/AbstractIssueReporterActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/error/AbstractIssueReporterActivity.java
@@ -38,6 +38,7 @@ import com.heinrichreimersoftware.androidissuereporter.model.github.GithubLogin;
 import com.heinrichreimersoftware.androidissuereporter.model.github.GithubTarget;
 import com.heinrichreimersoftware.androidissuereporter.util.ColorUtils;
 import com.heinrichreimersoftware.androidissuereporter.util.ThemeUtils;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.theme.ThemeColorManager;

 import org.autojs.autojs6.BuildConfig;
@@ -235,7 +236,8 @@ public abstract class AbstractIssueReporterActivity extends BaseActivity {
            sendBugReport(new GithubLogin(username, password), null);
        } else {
            if (TextUtils.isEmpty(token))
-                throw new IllegalStateException("You must provide a GitHub API Token.");
+                throw new IllegalStateException(GlobalAppContext
+                        .getString(org.autojs.autojs6.R.string.error_github_api_token_needed));

            String email = null;
            if (!TextUtils.isEmpty(inputEmail.getText()) &&
--- a/app/src/main/java/org/autojs/autojs/ui/main/MainActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/main/MainActivity.java
@@ -48,9 +48,12 @@ import org.androidannotations.annotations.AfterViews;
 import org.androidannotations.annotations.Click;
 import org.androidannotations.annotations.EActivity;
 import org.androidannotations.annotations.ViewById;
+import org.autojs.autojs.Pref;
 import org.autojs.autojs.autojs.AutoJs;
 import org.autojs.autojs.external.foreground.MainActivityForegroundService;
 import org.autojs.autojs.model.explorer.Explorers;
+import org.autojs.autojs.network.UpdateChecker;
+import org.autojs.autojs.tool.UpdateUtils;
 import org.autojs.autojs.ui.BaseActivity;
 import org.autojs.autojs.ui.common.NotAskAgainDialog;
 import org.autojs.autojs.ui.doc.DocsFragment_;
@@ -101,6 +104,7 @@ public class MainActivity extends BaseActivity implements OnActivityResultDelega
    @Override
    protected void onPostResume() {
        restartIfNeeded();
+        autoCheckForUpdatesIfNeeded();
        super.onPostResume();
    }

@@ -111,6 +115,19 @@ public class MainActivity extends BaseActivity implements OnActivityResultDelega
        }
    }

+    private void autoCheckForUpdatesIfNeeded() {
+        if (Pref.isAutoCheckForUpdatesEnabled()) {
+            long minCheckedInterval = 2 * 60 * 60 * 1000; // 2 hours
+            long lastChecked = Pref.getLastUpdatesCheckedTimestamp();
+
+            if (System.currentTimeMillis() - lastChecked > minCheckedInterval) {
+                View rootView = findViewById(android.R.id.content);
+                UpdateChecker checker = UpdateUtils.getSnackbarChecker(rootView);
+                checker.checkNow();
+            }
+        }
+    }
+
    public void applyThemeColor() {
        if (ThemeColor.fromPreferences(PreferenceManager.getDefaultSharedPreferences(this), null) == null) {
            ThemeColor defaultThemeColor = new ThemeColor(
--- a/app/src/main/java/org/autojs/autojs/ui/main/drawer/DrawerFragment.java
+++ b/app/src/main/java/org/autojs/autojs/ui/main/drawer/DrawerFragment.java
@@ -189,7 +189,10 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {

                new DrawerMenuGroup(R.string.text_appearance),
                new DrawerMenuItem(R.drawable.ic_night_mode, R.string.text_night_mode, R.string.key_night_mode, this::toggleNightMode),
-                new DrawerMenuItem(R.drawable.ic_personalize, R.string.text_theme_color, this::openThemeColorSettings)
+                new DrawerMenuItem(R.drawable.ic_personalize, R.string.text_theme_color, this::launchThemeColorSettings),
+
+                new DrawerMenuGroup(R.string.text_about),
+                new DrawerMenuItem(R.drawable.ic_about, R.string.text_about_app_and_developer, this::launchAboutAppAndDeveloper)
        )));
        mDrawerMenu.setAdapter(mDrawerMenuAdapter);
        mDrawerMenu.setLayoutManager(new LinearLayoutManager(mContext));
@@ -266,7 +269,6 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {
                    syncForegroundServiceState();
                })
                .onPositive((dialog, which) -> MainActivityForegroundService.start(mContext))
-                .canceledOnTouchOutside(false)
                .cancelable(false)
                .show();
    }
@@ -307,7 +309,6 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {
                    syncUsageStatsPermissionState();
                })
                .onPositive((dialog, which) -> requestAppUsagePermission())
-                .canceledOnTouchOutside(false)
                .cancelable(false)
                .show();
    }
@@ -350,10 +351,14 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {
        return ((PowerManager) mContext.getSystemService(Context.POWER_SERVICE)).isIgnoringBatteryOptimizations(mPackageName);
    }

-    public void openThemeColorSettings(DrawerMenuItemViewHolder holder) {
+    public void launchThemeColorSettings(DrawerMenuItemViewHolder holder) {
        SettingsActivity.selectThemeColor(getActivity());
    }

+    public void launchAboutAppAndDeveloper(DrawerMenuItemViewHolder holder) {
+        SettingsActivity.launchAboutAppAndDeveloper(requireActivity());
+    }
+
    public void toggleNightMode(@NonNull DrawerMenuItemViewHolder holder) {
        ((BaseActivity) requireActivity()).setNightModeEnabled(holder.getSwitchCompat().isChecked());
    }
@@ -402,7 +407,6 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {
                    syncWriteSecuritySettingsState();
                })
                .onPositive((dialog, which) -> grantWriteSecureSettingsAccess())
-                .canceledOnTouchOutside(false)
                .cancelable(false)
                .show();
    }
@@ -430,7 +434,6 @@ public class DrawerFragment extends androidx.fragment.app.Fragment {
                    syncProjectMediaAccessState();
                })
                .onPositive((dialog, which) -> grantProjectMediaAccess())
-                .canceledOnTouchOutside(false)
                .cancelable(false)
                .show();
    }
--- a/app/src/main/java/org/autojs/autojs/ui/main/task/TaskGroup.java
+++ b/app/src/main/java/org/autojs/autojs/ui/main/task/TaskGroup.java
@@ -3,6 +3,7 @@ package org.autojs.autojs.ui.main.task;
 import android.content.Context;

 import com.bignerdranch.expandablerecyclerview.model.Parent;
+import com.stardust.app.GlobalAppContext;
 import com.stardust.autojs.execution.ScriptExecution;

 import org.autojs.autojs6.R;
@@ -69,7 +70,7 @@ public abstract class TaskGroup implements Parent<Task> {
            } else if (task instanceof IntentTask) {
                mTasks.add(new Task.PendingTask((IntentTask) task));
            } else {
-                throw new IllegalArgumentException("task = " + task);
+                throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_illegal_argument, "task", task));
            }
            return pos;
        }
@@ -100,7 +101,7 @@ public abstract class TaskGroup implements Parent<Task> {
                } else if (task instanceof IntentTask) {
                    ((Task.PendingTask) mTasks.get(i)).setIntentTask((IntentTask) task);
                } else {
-                    throw new IllegalArgumentException("task = " + task);
+                    throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_illegal_argument, "task", task));
                }
            }
            return i;
--- a/app/src/main/java/org/autojs/autojs/ui/project/BuildActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/project/BuildActivity.java
@@ -126,7 +126,7 @@ public class BuildActivity extends BaseActivity implements ApkBuilder.ProgressCa
    }

    private void downloadPlugin() {
-        IntentUtil.browse(this, "https://cdn.jsdelivr.net/gh/SuperMonster002/Hello-Sockpuppet@master/" +
+        IntentUtil.browse(this, "https://raw.githubusercontent.com/SuperMonster002/Hello-Sockpuppet/master/" +
                "%5B" + "auto.js" + "%5D" +
                "%5B" + "apk_builder_plugin_4.1.1_alpha2" + "%5D" +
                "%5B" + "arm-v7a" + "%5D" +
--- a/app/src/main/java/org/autojs/autojs/ui/settings/AboutActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/settings/AboutActivity.java
@@ -11,11 +11,11 @@ import org.androidannotations.annotations.AfterViews;
 import org.androidannotations.annotations.Click;
 import org.androidannotations.annotations.EActivity;
 import org.androidannotations.annotations.ViewById;
+import org.autojs.autojs.tool.UpdateUtils;
 import org.autojs.autojs6.BuildConfig;
 import org.autojs.autojs6.R;
 import org.autojs.autojs.ui.BaseActivity;
 import org.autojs.autojs.ui.error.IssueReporterActivity;
-import org.autojs.autojs.ui.update.UpdateCheckDialog;

 import de.psdev.licensesdialog.LicenseResolver;
 import de.psdev.licensesdialog.LicensesDialog;
@@ -113,8 +113,8 @@ public class AboutActivity extends BaseActivity {

    @SuppressLint("NonConstantResourceId")
    @Click(R.id.about_functions_button_update)
-    void checkForUpdated() {
-        new UpdateCheckDialog(this).show();
+    void checkForUpdates() {
+        UpdateUtils.getDialogChecker(this).checkNow();
    }

    @SuppressLint("NonConstantResourceId")
--- a/app/src/main/java/org/autojs/autojs/ui/settings/CheckForUpdatesPreference.java
+++ b/app/src/main/java/org/autojs/autojs/ui/settings/CheckForUpdatesPreference.java
@@ -0,0 +1,60 @@
+package org.autojs.autojs.ui.settings;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.Preference;
+import android.util.AttributeSet;
+
+import androidx.preference.PreferenceManager;
+
+import org.autojs.autojs.Pref;
+import org.autojs.autojs6.R;
+
+/**
+ * Created by SuperMonster003 on May 31, 2022.
+ */
+
+public class CheckForUpdatesPreference extends Preference implements SharedPreferences.OnSharedPreferenceChangeListener {
+    public CheckForUpdatesPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        init();
+    }
+
+    public CheckForUpdatesPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    private void init() {
+        SharedPreferences mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
+        mSharedPreferences.registerOnSharedPreferenceChangeListener(this);
+    }
+
+    public CheckForUpdatesPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public CheckForUpdatesPreference(Context context) {
+        super(context);
+        init();
+    }
+
+    @Override
+    protected void onAttachedToActivity() {
+        setSummaryIfNeeded();
+        super.onAttachedToActivity();
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
+        setSummaryIfNeeded();
+    }
+
+    private void setSummaryIfNeeded() {
+        String lastChecked = Pref.getLastUpdatesCheckedTimeString();
+        if (lastChecked != null) {
+            setSummary(getContext().getString(R.string.text_last_updates_checked_time, lastChecked));
+        }
+    }
+}
--- a/app/src/main/java/org/autojs/autojs/ui/settings/SettingsActivity.java
+++ b/app/src/main/java/org/autojs/autojs/ui/settings/SettingsActivity.java
@@ -1,6 +1,7 @@
 package org.autojs.autojs.ui.settings;

 import android.annotation.SuppressLint;
+import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
@@ -23,10 +24,10 @@ import com.stardust.util.MapBuilder;
 import org.androidannotations.annotations.AfterViews;
 import org.androidannotations.annotations.EActivity;
 import org.autojs.autojs.Pref;
+import org.autojs.autojs.tool.UpdateUtils;
 import org.autojs.autojs6.R;
 import org.autojs.autojs.ui.BaseActivity;
 import org.autojs.autojs.ui.common.NotAskAgainDialog;
-import org.autojs.autojs.ui.update.UpdateCheckDialog;

 import java.util.ArrayList;
 import java.util.Collection;
@@ -66,70 +67,6 @@ public class SettingsActivity extends BaseActivity {
            .add(new Pair<>(R.color.theme_color_default, R.string.theme_color_default))
            .list();

-    public static void selectThemeColor(Context context) {
-        List<ColorSelectActivity.ColorItem> colorItems = new ArrayList<>(COLOR_ITEMS.size());
-        for (Pair<Integer, Integer> item : COLOR_ITEMS) {
-            colorItems.add(new ColorSelectActivity.ColorItem(context.getString(item.second), ContextCompat.getColor(context, item.first)));
-        }
-        ColorSelectActivity.startColorSelect(context, context.getString(R.string.mt_color_picker_title), colorItems);
-    }
-
-    @NonNull
-    private static LinkedHashMap<String, Runnable> getAvailableLanguages(@NonNull Context context) {
-        LinkedHashMap<String, Runnable> map = new LinkedHashMap<>();
-        map.put(context.getString(R.string.text_app_language_follow_system),
-                ((BaseActivity) context)::setLocaleFollowSystem);
-        map.put(context.getString(R.string.text_app_language_simplified_chinese),
-                () -> ((BaseActivity) context).updateLocale(Locale.SIMPLIFIED_CHINESE));
-        map.put(context.getString(R.string.text_app_language_english),
-                () -> ((BaseActivity) context).updateLocale(Locale.ENGLISH));
-        return map;
-    }
-
-    public static void selectAppLanguage(Context context) {
-        LinkedHashMap<String, Runnable> languagesMap = getAvailableLanguages(context);
-        Set<String> languagesKey = languagesMap.keySet();
-        Collection<Runnable> languagesRunnable = languagesMap.values();
-
-        new MaterialDialog.Builder(context)
-                .title(R.string.text_app_language)
-                .items(languagesKey)
-                .itemsCallbackSingleChoice(Pref.getAppLanguageIndex(), (dialog, itemView, position, text) -> true)
-                .positiveText(R.string.text_ok)
-                .onPositive((dialog, which) -> {
-                    int index = dialog.getSelectedIndex();
-                    Runnable run = (Runnable) languagesRunnable.toArray()[index];
-                    if (run != null) {
-                        Pref.setAppLanguageIndex(index);
-                        GlobalAppContext.post(run);
-                    }
-                    dialog.dismiss();
-                })
-                .negativeText(R.string.text_cancel)
-                .onNegative((dialog, which) -> dialog.dismiss())
-                .neutralText(R.string.text_dialog_button_go_to_settings)
-                .onNeutral((dialog, which) -> {
-                    Intent intent = new Intent(Intent.ACTION_MAIN);
-                    intent.setClassName("com.android.settings", "com.android.settings.LanguageSettings");
-                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-                    context.startActivity(intent);
-                })
-                .autoDismiss(false)
-                .show();
-
-        showImperfectHint(context);
-    }
-
-    private static void showImperfectHint(Context context) {
-        new NotAskAgainDialog.Builder(context, "SettingsActivity.select_app_language_imperfect_hint")
-                .title(R.string.text_notice)
-                .content(R.string.text_imperfect_hint_for_app_language)
-                .positiveText(R.string.text_ok)
-                .onPositive((dialog, which) -> dialog.dismiss())
-                .autoDismiss(false)
-                .show();
-    }
-
    @AfterViews
    void setUpUI() {
        setUpToolbar();
@@ -163,14 +100,28 @@ public class SettingsActivity extends BaseActivity {
        @Override
        public void onStart() {
            super.onStart();
+            Activity mActivity = getActivity();
            ACTION_MAP = new MapBuilder<String, Runnable>()
-                    .put(getString(R.string.text_theme_color), () -> selectThemeColor(getActivity()))
-                    .put(getString(R.string.text_check_for_updates), () -> new UpdateCheckDialog(getActivity()).show())
-                    .put(getString(R.string.text_about_app_and_developer), () -> startActivity(new Intent(getActivity(), AboutActivity_.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)))
-                    .put(getString(R.string.text_app_language), () -> selectAppLanguage(getActivity()))
+                    .put(getString(R.string.text_theme_color), () -> selectThemeColor(mActivity))
+                    .put(getString(R.string.text_about_app_and_developer), () -> launchAboutAppAndDeveloper(mActivity))
+                    .put(getString(R.string.text_app_language), () -> selectAppLanguage(mActivity))
+                    .put(getString(R.string.text_check_for_updates), () -> checkForUpdates(mActivity))
+                    .put(getString(R.string.text_manage_ignored_updates), () -> manageIgnoredUpdates(mActivity))
                    .build();
        }

+        private void manageIgnoredUpdates(Activity mActivity) {
+            // TODO by SuperMonster003 on May 31, 2022.
+            //  ! Updates ignorance.
+
+            new MaterialDialog.Builder(mActivity)
+                    .title(R.string.text_prompt)
+                    .content(R.string.text_under_development_content)
+                    .positiveText(R.string.dialog_button_back)
+                    .build()
+                    .show();
+        }
+
        public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
            CharSequence title = preference.getTitle();
            if (title != null) {
@@ -185,4 +136,76 @@ public class SettingsActivity extends BaseActivity {

    }

+    public static void checkForUpdates(Context context) {
+        UpdateUtils.getDialogChecker(context).checkNow();
+    }
+
+    public static void selectThemeColor(Context context) {
+        List<ColorSelectActivity.ColorItem> colorItems = new ArrayList<>(COLOR_ITEMS.size());
+        for (Pair<Integer, Integer> item : COLOR_ITEMS) {
+            colorItems.add(new ColorSelectActivity.ColorItem(context.getString(item.second), ContextCompat.getColor(context, item.first)));
+        }
+        ColorSelectActivity.startColorSelect(context, context.getString(R.string.mt_color_picker_title), colorItems);
+    }
+
+    public static void selectAppLanguage(Context context) {
+        LinkedHashMap<String, Runnable> languagesMap = getAvailableLanguages(context);
+        Set<String> languagesKey = languagesMap.keySet();
+        Collection<Runnable> languagesRunnable = languagesMap.values();
+
+        new MaterialDialog.Builder(context)
+                .title(R.string.text_app_language)
+                .items(languagesKey)
+                .itemsCallbackSingleChoice(Pref.getAppLanguageIndex(), (dialog, itemView, position, text) -> true)
+                .positiveText(R.string.text_ok)
+                .onPositive((dialog, which) -> {
+                    int index = dialog.getSelectedIndex();
+                    Runnable run = (Runnable) languagesRunnable.toArray()[index];
+                    if (run != null) {
+                        Pref.setAppLanguageIndex(index);
+                        GlobalAppContext.post(run);
+                    }
+                    dialog.dismiss();
+                })
+                .negativeText(R.string.text_cancel)
+                .onNegative((dialog, which) -> dialog.dismiss())
+                .neutralText(R.string.dialog_button_go_to_settings)
+                .onNeutral((dialog, which) -> {
+                    Intent intent = new Intent(Intent.ACTION_MAIN);
+                    intent.setClassName("com.android.settings", "com.android.settings.LanguageSettings");
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    context.startActivity(intent);
+                })
+                .autoDismiss(false)
+                .show();
+
+        showImperfectHint(context);
+    }
+
+    public static void launchAboutAppAndDeveloper(@NonNull Context context) {
+        context.startActivity(new Intent(context, AboutActivity_.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
+    }
+
+    @NonNull
+    private static LinkedHashMap<String, Runnable> getAvailableLanguages(@NonNull Context context) {
+        LinkedHashMap<String, Runnable> map = new LinkedHashMap<>();
+        map.put(context.getString(R.string.text_app_language_follow_system),
+                ((BaseActivity) context)::setLocaleFollowSystem);
+        map.put(context.getString(R.string.text_app_language_simplified_chinese),
+                () -> ((BaseActivity) context).updateLocale(Locale.SIMPLIFIED_CHINESE));
+        map.put(context.getString(R.string.text_app_language_english),
+                () -> ((BaseActivity) context).updateLocale(Locale.ENGLISH));
+        return map;
+    }
+
+    private static void showImperfectHint(Context context) {
+        new NotAskAgainDialog.Builder(context, "SettingsActivity.select_app_language_imperfect_hint")
+                .title(R.string.text_notice)
+                .content(R.string.text_imperfect_hint_for_app_language)
+                .positiveText(R.string.text_ok)
+                .onPositive((dialog, which) -> dialog.dismiss())
+                .autoDismiss(false)
+                .show();
+    }
+
 }
--- a/app/src/main/java/org/autojs/autojs/ui/update/UpdateCheckDialog.java
+++ b/app/src/main/java/org/autojs/autojs/ui/update/UpdateCheckDialog.java
@@ -1,53 +0,0 @@
-package org.autojs.autojs.ui.update;
-
-import android.content.Context;
-
-import com.afollestad.materialdialogs.MaterialDialog;
-
-import org.autojs.autojs6.R;
-
-/**
- * Created by Stardust on 2017/9/20.
- */
-public class UpdateCheckDialog {
-
-    private final MaterialDialog mProgress;
-    private final Context mContext;
-
-    public UpdateCheckDialog(Context context) {
-        mContext = context;
-        mProgress = new MaterialDialog.Builder(context)
-                .title(R.string.text_under_development_title)
-                .content(R.string.text_under_development_content)
-                .positiveText(R.string.text_ok)
-                .build();
-//        mProgress = new MaterialDialog.Builder(context)
-//                .progress(true, 0)
-//                .content(R.string.text_checking_update)
-//                .build();
-    }
-
-    public void show() {
-        mProgress.show();
-//        VersionService.checkForUpdates()
-//                .observeOn(AndroidSchedulers.mainThread())
-//                .subscribe(new SimpleObserver<>() {
-//                    @Override
-//                    public void onNext(@NonNull VersionInfo versionInfo) {
-//                        mProgress.dismiss();
-//                        if (versionInfo.isNewer()) {
-//                            new UpdateInfoDialogBuilder(mContext, versionInfo).show();
-//                        } else {
-//                            GlobalAppContext.toast(R.string.text_is_latest_version);
-//                        }
-//                    }
-//
-//                    @Override
-//                    public void onError(@NonNull Throwable e) {
-//                        e.printStackTrace();
-//                        mProgress.dismiss();
-//                        GlobalAppContext.toast(R.string.text_check_update_error);
-//                    }
-//                });
-    }
-}
--- a/app/src/main/java/org/autojs/autojs/ui/update/UpdateInfoDialogBuilder.java
+++ b/app/src/main/java/org/autojs/autojs/ui/update/UpdateInfoDialogBuilder.java
@@ -1,67 +0,0 @@
-package org.autojs.autojs.ui.update;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.SharedPreferences;
-import androidx.preference.PreferenceManager;
-
-import androidx.annotation.NonNull;
-
-import com.afollestad.materialdialogs.MaterialDialog;
-import com.stardust.app.GlobalAppContext;
-import com.stardust.util.IntentUtil;
-
-import org.autojs.autojs.Pref;
-import org.autojs.autojs6.R;
-import org.autojs.autojs.external.fileprovider.AppFileProvider;
-import org.autojs.autojs.network.download.DownloadManager;
-import org.autojs.autojs.network.entity.VersionInfo;
-
-import java.io.File;
-
-import io.reactivex.android.schedulers.AndroidSchedulers;
-
-/**
- * Created by Stardust on 2017/4/9.
- */
-public class UpdateInfoDialogBuilder extends MaterialDialog.Builder {
-
-    private static final String KEY_IGNORED_VERSION_PREFIX = "Ignored version: ";
-    private final SharedPreferences mSharedPreferences;
-    private VersionInfo mVersionInfo;
-
-    public UpdateInfoDialogBuilder(@NonNull Context context, VersionInfo info) {
-        super(context);
-        mSharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-        updateInfo(info);
-    }
-
-    public void updateInfo(VersionInfo info) {
-        mVersionInfo = info;
-        title(GlobalAppContext.getString(R.string.text_new_version_found));
-        content(info.appVersionName + "\n" + info.appVersionCode);
-    }
-
-    @Override
-    public MaterialDialog show() {
-        if (mSharedPreferences.getBoolean(KEY_IGNORED_VERSION_PREFIX + mVersionInfo.appVersionCode, false)) {
-            return null;
-        }
-        return super.show();
-    }
-
-    @SuppressWarnings("ResultOfMethodCallIgnored")
-    @SuppressLint("CheckResult")
-    private void directlyDownload(String downloadUrl) {
-        final String path = new File(Pref.getScriptDirPath(), "autojs6-latest.apk").getPath();
-        DownloadManager.getInstance().downloadWithProgress(getContext(), downloadUrl, path)
-                .subscribeOn(AndroidSchedulers.mainThread())
-                .subscribe(file -> IntentUtil.installApkOrToast(getContext(), file.getPath(), AppFileProvider.AUTHORITY),
-                        error -> {
-                            error.printStackTrace();
-                            GlobalAppContext.toast(R.string.text_download_failed);
-                        });
-
-    }
-
-}
--- a/app/src/main/java/org/autojs/autojs/ui/viewmodel/ExplorerItemList.java
+++ b/app/src/main/java/org/autojs/autojs/ui/viewmodel/ExplorerItemList.java
@@ -2,9 +2,12 @@ package org.autojs.autojs.ui.viewmodel;

 import android.content.SharedPreferences;

+import com.stardust.app.GlobalAppContext;
+
 import org.autojs.autojs.model.explorer.ExplorerItem;
 import org.autojs.autojs.model.explorer.ExplorerPage;
 import org.autojs.autojs.model.explorer.ExplorerSorter;
+import org.autojs.autojs6.R;

 import java.util.ArrayList;
 import java.util.Comparator;
@@ -118,7 +121,7 @@ public class ExplorerItemList {
            case SORT_TYPE_TYPE:
                return ExplorerSorter.TYPE;
        }
-        throw new IllegalArgumentException("unknown type " + sortType);
+        throw new IllegalArgumentException(GlobalAppContext.getString(R.string.error_illegal_argument, "sortType", sortType));
    }

    public int groupCount() {
--- a/app/src/main/res/drawable/ic_about.png
+++ b/app/src/main/res/drawable/ic_about.png
--- a/app/src/main/res/layout/activity_error_report.xml
+++ b/app/src/main/res/layout/activity_error_report.xml
@@ -30,5 +30,5 @@
        android:scrollbars="vertical"
        android:textColor="@android:color/secondary_text_light"
        android:textSize="16sp"
-        tools:text="错误"/>
+        tools:text="@string/text_error"/>
 </LinearLayout>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -26,7 +26,7 @@
                    android:layout_height="?attr/actionBarSize"
                    android:theme="@style/ToolBarStyle"
                    android:title="@string/app_name"
-                    app:layout_scrollFlags="scroll|enterAlways"
+                    app:layout_scrollFlags="enterAlways"
                    app:popupTheme="@style/AppTheme.PopupOverlay" />

            <com.google.android.material.tabs.TabLayout
--- a/app/src/main/res/menu/menu_editor.xml
+++ b/app/src/main/res/menu/menu_editor.xml
@@ -1,149 +1,154 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
-      xmlns:app="http://schemas.android.com/apk/res-auto">
+        xmlns:app="http://schemas.android.com/apk/res-auto">

    <item
-        android:id="@+id/action_force_stop"
-        android:title="@string/text_force_stop"
-        app:showAsAction="never"/>
+            android:id="@+id/action_force_stop"
+            android:title="@string/text_force_stop"
+            app:showAsAction="never" />

    <item android:title="@string/text_edit">

        <menu>

            <item
-                android:id="@+id/action_find_or_replace"
-                android:title="@string/text_find_or_replace"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_find_or_replace"
+                    android:title="@string/text_find_or_replace"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_copy_all"
-                android:title="@string/text_copy_all"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_copy_all"
+                    android:title="@string/text_copy_all"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_copy_line"
-                android:title="@string/text_copy_line"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_copy_line"
+                    android:title="@string/text_copy_line"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_delete_line"
-                android:title="@string/text_delete_line"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_paste"
+                    android:title="@string/text_paste"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_clear"
-                android:title="@string/text_clear"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_delete_line"
+                    android:title="@string/text_delete_line"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_beautify"
-                android:title="@string/text_code_beautify"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_clear"
+                    android:title="@string/text_clear"
+                    app:showAsAction="never" />
+
+            <item
+                    android:id="@+id/action_beautify"
+                    android:title="@string/text_code_beautify"
+                    app:showAsAction="never" />

        </menu>

    </item>

    <item
-        android:title="@string/text_jump"
-        app:showAsAction="never">
+            android:title="@string/text_jump"
+            app:showAsAction="never">

        <menu>

            <item
-                android:id="@+id/action_jump_to_line"
-                android:title="@string/text_jump_to_line"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_jump_to_line"
+                    android:title="@string/text_jump_to_line"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_jump_to_start"
-                android:title="@string/text_jump_to_start"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_jump_to_start"
+                    android:title="@string/text_jump_to_start"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_jump_to_end"
-                android:title="@string/text_jump_to_end"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_jump_to_end"
+                    android:title="@string/text_jump_to_end"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_jump_to_line_start"
-                android:title="@string/text_jump_to_line_start"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_jump_to_line_start"
+                    android:title="@string/text_jump_to_line_start"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_jump_to_line_end"
-                android:title="@string/text_jump_to_line_end"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_jump_to_line_end"
+                    android:title="@string/text_jump_to_line_end"
+                    app:showAsAction="never" />
        </menu>

    </item>

    <item
-        android:title="@string/text_debug"
-        app:showAsAction="never">
+            android:title="@string/text_debug"
+            app:showAsAction="never">

        <menu>

            <item
-                android:id="@+id/action_breakpoint"
-                android:title="@string/text_set_breakpoint"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_breakpoint"
+                    android:title="@string/text_set_breakpoint"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_launch_debugger"
-                android:title="@string/text_launch_debugger"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_launch_debugger"
+                    android:title="@string/text_launch_debugger"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_remove_all_breakpoints"
-                android:title="@string/text_remove_all_breakpoints"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_remove_all_breakpoints"
+                    android:title="@string/text_remove_all_breakpoints"
+                    app:showAsAction="never" />
        </menu>

    </item>

    <item
-        android:id="@+id/action_build_apk"
-        android:title="@string/text_build_apk"
-        app:showAsAction="never"/>
+            android:id="@+id/action_build_apk"
+            android:title="@string/text_build_apk"
+            app:showAsAction="never" />

    <item
-        android:id="@+id/action_log"
-        android:title="@string/text_log"
-        app:showAsAction="never"/>
+            android:id="@+id/action_log"
+            android:title="@string/text_log"
+            app:showAsAction="never" />

    <item android:title="@string/text_more">
        <menu>
            <item
-                android:id="@+id/action_console"
-                android:title="@string/text_console"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_console"
+                    android:title="@string/text_console"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_import_java_class"
-                android:title="@string/text_find_java_classes"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_import_java_class"
+                    android:title="@string/text_find_java_classes"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_info"
-                android:title="@string/text_info"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_info"
+                    android:title="@string/text_info"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_editor_text_size"
-                android:title="@string/text_text_size"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_editor_text_size"
+                    android:title="@string/text_text_size"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_editor_theme"
-                android:title="@string/text_editor_theme"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_editor_theme"
+                    android:title="@string/text_editor_theme"
+                    app:showAsAction="never" />

            <item
-                android:id="@+id/action_open_by_other_apps"
-                android:title="@string/text_open_by_other_apps"
-                app:showAsAction="never"/>
+                    android:id="@+id/action_open_by_other_apps"
+                    android:title="@string/text_open_by_other_apps"
+                    app:showAsAction="never" />

        </menu>
    </item>
--- a/app/src/main/res/values-en/strings.xml
+++ b/app/src/main/res/values-en/strings.xml
@@ -77,12 +77,12 @@
    <string name="text_build_failed">Build failed</string>
    <string name="text_build_successfully">Build succeeded</string>
    <string name="text_cancel">Cancel</string>
-    <string name="text_cancel_download">Cancel downloading</string>
+    <string name="dialog_button_cancel_download">Cancel</string>
    <string name="text_cannot_read_file">Can\'t read file</string>
    <string name="text_change_working_dir">Change working directory</string>
-    <string name="text_checking_update">Checking for updates</string>
+    <string name="text_checking_update" tools:ignore="TypographyEllipsis">Checking for updates...</string>
    <string name="text_check_for_updates">Check for updates</string>
-    <string name="text_check_update_error">Check for updates failed</string>
+    <string name="error_check_for_update">Checking for updates failed</string>
    <string name="text_class_or_package_name">Class / Package name</string>
    <string name="text_clear">Clear</string>
    <string name="text_clear_file_selection">Clear file selection</string>
@@ -102,6 +102,7 @@
    <string name="text_copy_command">Copy cmd</string>
    <string name="text_copy_debug_info">Copy debugging log</string>
    <string name="text_copy_line">Copy line</string>
+    <string name="text_paste">Paste</string>
    <string name="text_copy_to_clip">Copy to clipboard</string>
    <string name="text_copy_value">Copy value</string>
    <string name="text_create_fail">Create failed</string>
@@ -123,7 +124,7 @@
    <string name="text_delete_line">Delete line</string>
    <string name="text_detail">Details</string>
    <string name="text_developer_details_under_development">Developer details is under development</string>
-    <string name="text_dialog_button_go_to_settings">System Settings</string>
+    <string name="dialog_button_go_to_settings">System Settings</string>
    <string name="text_directly_download">Download now</string>
    <string name="text_directory">Directory</string>
    <string name="text_display_over_other_app">Display over other apps</string>
@@ -365,7 +366,7 @@
    <string name="text_under_development_content">The feature will be ready to use in the next few updates</string>
    <string name="text_under_development_title">Under development</string>
    <string name="text_undo">Undo</string>
-    <string name="text_update">Update</string>
+    <string name="text_updates">Updates</string>
    <string name="text_usage_stats_permission">Usage stats access</string>
    <string name="text_usage_stats_permission_description">Provides access to device usage history and statistics which results in currentPackage() a more accurate result</string>
    <string name="text_username">Username</string>
@@ -406,6 +407,42 @@
    <string name="theme_color_yellow">Yellow</string>
    <string name="theme_color_yellow_green">Yellow green</string>
    <string name="text_refresh_explorer_may_needed">An explorer page swipe-to-refresh may be needed</string>
+    <string name="error_set_both_icon_res_and_icon">Can\'t set both iconRes and icon</string>
+    <string name="error_only_one_child_for_scroll_view">ScrollView can host only one direct child</string>
+    <string name="error_illegal_url_argument">URL must starts with a protocol like \"https://\" and so forth</string>
+    <string name="error_illegal_relative_url_argument_without_base">Relative URL can\'t be used without base URL</string>
+    <string name="dialog_button_ignore_current_update">Ignore</string>
+    <string name="dialog_button_back">@string/text_back</string>
+    <string name="dialog_button_update_now">Update</string>
+    <string name="text_getting_release_notes" tools:ignore="TypographyEllipsis">Retrieving release notes...</string>
+    <string name="error_cannot_connect_to_github">Can\'t connect to GitHub</string>
+    <string name="error_invalid_github_repo">Invalid GitHub repository: %s</string>
+    <string name="error_get_github_latest_release">Can\'t get latest GitHub release</string>
+    <string name="error_corresponding_github_release_may_not_published">Corresponding GitHub release may have not been published yet</string>
+    <string name="error_parse_version_info">Can\'t parse version information</string>
+    <string name="text_empty_release_note">No release note</string>
+    <string name="error_cannot_get_download_url">Can\'t get downloading URL</string>
+    <string name="error_empty_github_release_assets">No GitHub release assets to download</string>
+    <string name="text_github_backup_url_used">Backup URL has been used</string>
+    <string name="error_unknown">Unknown error</string>
+    <string name="text_downloading">Downloading</string>
+    <string name="text_file_name">File name</string>
+    <string name="text_version">Version</string>
+    <string name="dialog_button_quit">Quit</string>
+    <string name="dialog_button_retry">Retry</string>
+    <string name="text_preparing" tools:ignore="TypographyEllipsis">Preparing...</string>
+    <string name="error_download_interrupted">Download interrupted</string>
+    <string name="text_download_cancelled">Download cancelled</string>
+    <string name="text_manage_ignored_updates">Manage ignored updates</string>
+    <string name="text_auto_check_for_updates_and_show_snackbar">Check for updates automatically and show a snackbar on homepage</string>
+    <string name="text_auto_check_for_updates">Auto check for updates</string>
+    <string name="text_last_updates_checked_time">Last checked: %s</string>
+    <string name="error_failed_to_parse_version_info">Failed to parse version info</string>
+    <string name="error_put_value_into_json">Can\'t put value %s into JSON</string>
+    <string name="error_github_api_token_needed">You must provide a GitHub API Token</string>
+    <string name="error_cannot_find_editor_view_from_child_view">Cann\'t find EditorView from child view: %s</string>
+    <string name="error_unknown_type">Unknown type: %s</string>
+    <string name="error_sdk_lower_than_o_not_supported_yet">Current function is not supported by Android SDK versions lower than 26 (Android 8.0) yet</string>
    <plurals name="air_error_short_description" key="air_error_short_description">
        <item quantity="one">The description must have at least %d character</item>
        <item quantity="other">The description must have at least %d characters</item>
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -77,12 +77,12 @@
    <string name="text_build_failed">打包失败</string>
    <string name="text_build_successfully">打包成功</string>
    <string name="text_cancel">取消</string>
-    <string name="text_cancel_download">取消下载</string>
+    <string name="dialog_button_cancel_download">取消下载</string>
    <string name="text_cannot_read_file">无法读取文件</string>
    <string name="text_change_working_dir">更改工作路径 (脚本文件夹)</string>
-    <string name="text_checking_update">正在检查更新</string>
+    <string name="text_checking_update" tools:ignore="TypographyEllipsis">正在检查更新...</string>
    <string name="text_check_for_updates">检查更新</string>
-    <string name="text_check_update_error">检查更新失败</string>
+    <string name="error_check_for_update">检查更新失败</string>
    <string name="text_class_or_package_name">类/包名</string>
    <string name="text_clear">清空</string>
    <string name="text_clear_file_selection">清空文件选择</string>
@@ -102,6 +102,7 @@
    <string name="text_copy_command">复制指令</string>
    <string name="text_copy_debug_info">复制调试信息</string>
    <string name="text_copy_line">复制行</string>
+    <string name="text_paste">粘贴</string>
    <string name="text_copy_to_clip">复制到剪贴板</string>
    <string name="text_copy_value">复制值</string>
    <string name="text_create_fail">创建失败</string>
@@ -123,7 +124,7 @@
    <string name="text_delete_line">删除行</string>
    <string name="text_detail">详情</string>
    <string name="text_developer_details_under_development" tools:ignore="TypographyEllipsis">\"开发者详情\" 正在开发中...</string>
-    <string name="text_dialog_button_go_to_settings">系统设置</string>
+    <string name="dialog_button_go_to_settings">系统设置</string>
    <string name="text_directly_download">直接下载</string>
    <string name="text_directory">文件夹</string>
    <string name="text_display_over_other_app">显示在其他应用上层</string>
@@ -193,7 +194,7 @@
    <string name="text_invalid_project">无效项目</string>
    <string name="text_in_progress">处理中</string>
    <string name="text_issue_report">问题反馈</string>
-    <string name="text_is_latest_version">暂无更新版本</string>
+    <string name="text_is_latest_version">已是最新版本</string>
    <string name="text_js_file">*.js 文件</string>
    <string name="text_jump">跳转</string>
    <string name="text_jump_to_end">跳转到文件末尾</string>
@@ -365,7 +366,7 @@
    <string name="text_under_development_content">将在后续版本实现当前功能</string>
    <string name="text_under_development_title">开发中</string>
    <string name="text_undo">撤销</string>
-    <string name="text_update">更新</string>
+    <string name="text_updates">更新</string>
    <string name="text_usage_stats_permission">查看使用情况权限</string>
    <string name="text_usage_stats_permission_description">\"查看使用情况\" 权限可获取本设备过去使用应用的情况,从而使 \"获取当前应用\" (currentPackage) 结果更准确</string>
    <string name="text_username">用户名</string>
@@ -406,6 +407,42 @@
    <string name="theme_color_yellow">黄色</string>
    <string name="theme_color_yellow_green">黄绿</string>
    <string name="text_refresh_explorer_may_needed">可能需要下拉刷新文件浏览器页面</string>
+    <string name="error_set_both_icon_res_and_icon">不支持同时设置 iconRes 与 icon</string>
+    <string name="error_only_one_child_for_scroll_view">ScrollView 只能拥有至多一个直接子控件</string>
+    <string name="error_illegal_url_argument">URL 需以协议标识开头 (如 "https://" 等)</string>
+    <string name="error_illegal_relative_url_argument_without_base">使用相对 URL 时必须指定 Base URL</string>
+    <string name="dialog_button_ignore_current_update">忽略此版本</string>
+    <string name="dialog_button_back">@string/text_back</string>
+    <string name="dialog_button_update_now">立即更新</string>
+    <string name="text_getting_release_notes" tools:ignore="TypographyEllipsis">正在获取版本信息...</string>
+    <string name="error_cannot_connect_to_github">无法连接到 GitHub</string>
+    <string name="error_invalid_github_repo">无效的 GitHub 仓库: %s</string>
+    <string name="error_get_github_latest_release">无法获取最新的 GitHub 发行版</string>
+    <string name="error_corresponding_github_release_may_not_published">对应的 GitHub 发行版可能还未发布</string>
+    <string name="error_parse_version_info">无法解析版本信息</string>
+    <string name="text_empty_release_note">无版本信息</string>
+    <string name="error_cannot_get_download_url">无法获取下载链接</string>
+    <string name="error_empty_github_release_assets">无可供下载的 GitHub 发行版资源</string>
+    <string name="text_github_backup_url_used">备用 URL 已使用</string>
+    <string name="error_unknown">未知错误</string>
+    <string name="text_downloading">下载中</string>
+    <string name="text_file_name">文件名</string>
+    <string name="text_version">版本</string>
+    <string name="dialog_button_quit">放弃</string>
+    <string name="dialog_button_retry">重试</string>
+    <string name="text_preparing" tools:ignore="TypographyEllipsis">准备中...</string>
+    <string name="error_download_interrupted">下载中断</string>
+    <string name="text_download_cancelled">下载已取消</string>
+    <string name="text_manage_ignored_updates">管理已忽略更新</string>
+    <string name="text_auto_check_for_updates_and_show_snackbar">自动检查更新并在首页下方显示通知条</string>
+    <string name="text_auto_check_for_updates">自动检查更新</string>
+    <string name="text_last_updates_checked_time">上次检查: %s</string>
+    <string name="error_failed_to_parse_version_info">无法解析版本信息</string>
+    <string name="error_put_value_into_json">无法将值 %s 存入 JSON</string>
+    <string name="error_github_api_token_needed">需要提供 GitHub API 令牌</string>
+    <string name="error_cannot_find_editor_view_from_child_view">无法在子控件 %s 中找到 EditorView</string>
+    <string name="error_unknown_type">未知类型: %s</string>
+    <string name="error_sdk_lower_than_o_not_supported_yet">当前功能暂不支持安卓 SDK 版本低于 26 (Android 8.0) 的系统</string>
    <plurals name="air_error_short_description" key="air_error_short_description" tools:ignore="UnusedQuantity">
        <item quantity="one">描述至少需要 %d 个字</item>
        <item quantity="other">描述至少需要 %d 个字</item>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -36,6 +36,46 @@
    <color name="github_color_fg_muted">#57606A</color>
    <color name="tint_1st_developer_identifier">#2B7A85</color>
    <color name="tint_2nd_developer_identifier">#CC7A34</color>
+    <color name="title_material_toolbar">#ffffff</color>

+    <color name="dialog_button_default">#03A9F4</color>
+    <color name="dialog_button_caution">#FF3D00</color>
+    <color name="dialog_button_warn">#F57C00</color>
+    <color name="dialog_button_attraction">#7B1FA2</color>
+    <color name="dialog_button_hint">#0DA798</color>
+    <color name="dialog_button_reset">#A1887F</color>
+    <color name="dialog_button_unavailable">#BDBDBD</color>
+    <color name="dialog_button_finish">#009624</color>
+    <color name="dialog_button_success">@color/dialog_button_finish</color>
+    <color name="dialog_button_error">#003C8F</color>
+    <color name="dialog_button_failure">@color/dialog_button_error</color>
+
+    <color name="dialog_progress_download_tint">#FF6F00</color>
+    <color name="dialog_progress_download_bg_tint">#FFECB3</color>
+    <color name="dialog_progress_download_act_btn">#C43E00</color>
+    <color name="dialog_progress_files_tint">#F9A825</color>
+    <color name="dialog_progress_files_bg_tint">#FFF59D</color>
+    <color name="dialog_progress_files_act_btn">#C17900</color>
+    <color name="dialog_progress_backup_tint">#455A64</color>
+    <color name="dialog_progress_backup_bg_tint">#ECEFF1</color>
+    <color name="dialog_progress_backup_act_btn">#1C313A</color>
+    <color name="dialog_progress_restore_tint">#AB47BC</color>
+    <color name="dialog_progress_restore_bg_tint">#F3E5F5</color>
+    <color name="dialog_progress_restore_act_btn">#790E8B</color>
+    <color name="dialog_progress_indeterminate_tint">#00897B</color>
+    <color name="dialog_progress_indeterminate_bg_tint">#B2DFDB</color>
+    <color name="dialog_progress_indeterminate_act_btn">#005B4F</color>
+    <color name="dialog_progress_finish_tint">#00C853</color>
+    <color name="dialog_progress_finish_bg_tint">#DCEDC8</color>
+    <color name="dialog_progress_finish_act_btn">#009624</color>
+    <color name="dialog_progress_success_tint">#00C853</color>
+    <color name="dialog_progress_success_bg_tint">#DCEDC8</color>
+    <color name="dialog_progress_success_act_btn">#009624</color>
+    <color name="dialog_progress_error_tint">#1565C0</color>
+    <color name="dialog_progress_error_bg_tint">#BBDEFB</color>
+    <color name="dialog_progress_error_act_btn">#003C8F</color>
+    <color name="dialog_progress_failure_tint">#1565C0</color>
+    <color name="dialog_progress_failure_bg_tint">#BBDEFB</color>
+    <color name="dialog_progress_failure_act_btn">#003C8F</color>

 </resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -105,12 +105,12 @@
    <string name="text_build_failed">Build failed</string>
    <string name="text_build_successfully">Build succeeded</string>
    <string name="text_cancel">Cancel</string>
-    <string name="text_cancel_download">Cancel downloading</string>
+    <string name="dialog_button_cancel_download">Cancel</string>
    <string name="text_cannot_read_file">Can\'t read file</string>
    <string name="text_change_working_dir">Change working directory</string>
-    <string name="text_checking_update">Checking for updates</string>
+    <string name="text_checking_update" tools:ignore="TypographyEllipsis">Checking for updates...</string>
    <string name="text_check_for_updates">Check for updates</string>
-    <string name="text_check_update_error">Check for updates failed</string>
+    <string name="error_check_for_update">Checking for updates failed</string>
    <string name="text_class_or_package_name">Class / Package name</string>
    <string name="text_clear">Clear</string>
    <string name="text_clear_file_selection">Clear file selection</string>
@@ -130,6 +130,7 @@
    <string name="text_copy_command">Copy cmd</string>
    <string name="text_copy_debug_info">Copy debugging log</string>
    <string name="text_copy_line">Copy line</string>
+    <string name="text_paste">Paste</string>
    <string name="text_copy_to_clip">Copy to clipboard</string>
    <string name="text_copy_value">Copy value</string>
    <string name="text_create_fail">Create failed</string>
@@ -151,7 +152,7 @@
    <string name="text_delete_line">Delete line</string>
    <string name="text_detail">Details</string>
    <string name="text_developer_details_under_development">Developer details is under development</string>
-    <string name="text_dialog_button_go_to_settings">System Settings</string>
+    <string name="dialog_button_go_to_settings">System Settings</string>
    <string name="text_directly_download">Download now</string>
    <string name="text_directory">Directory</string>
    <string name="text_display_over_other_app">Display over other apps</string>
@@ -400,7 +401,7 @@
    <string name="text_under_development_content">The feature will be ready to use in the next few updates</string>
    <string name="text_under_development_title">Under development</string>
    <string name="text_undo">Undo</string>
-    <string name="text_update">Update</string>
+    <string name="text_updates">Updates</string>
    <string name="text_usage_stats_permission">Usage stats access</string>
    <string name="text_usage_stats_permission_description">Provides access to device usage history and statistics which results in currentPackage() a more accurate result</string>
    <string name="text_username">Username</string>
@@ -421,6 +422,47 @@
    <string name="text_write_secure_settings_description">Secure system settings, containing system preferences that applications can read but are not allowed to write.\nThese are for preferences that the user must explicitly modify through the UI of a system app.\nWith secure system settings permission, normal applications can directly modify the secure settings (such as accessibility service).</string>
    <string name="text_write_system_settings">Write system settings</string>
    <string name="text_refresh_explorer_may_needed">An explorer page swipe-to-refresh may be needed</string>
+    <string name="error_set_both_icon_res_and_icon">Can\'t set both iconRes and icon</string>
+    <string name="error_only_one_child_for_scroll_view">ScrollView can host only one direct child</string>
+    <string name="error_illegal_url_argument">URL must starts with a protocol like \"https://\" and so forth</string>
+    <string name="error_illegal_relative_url_argument_without_base">Relative URL can\'t be used without base URL</string>
+    <string name="dialog_button_ignore_current_update">Ignore</string>
+    <string name="dialog_button_back">@string/text_back</string>
+    <string name="dialog_button_update_now">Update</string>
+    <string name="text_getting_release_notes" tools:ignore="TypographyEllipsis">Retrieving release notes...</string>
+    <string name="error_cannot_connect_to_github">Can\'t connect to GitHub</string>
+    <string name="error_invalid_github_repo">Invalid GitHub repository: %s</string>
+    <string name="error_get_github_latest_release">Can\'t get latest GitHub release</string>
+    <string name="error_corresponding_github_release_may_not_published">Corresponding GitHub release may have not been published yet</string>
+    <string name="error_parse_version_info">Can\'t parse version information</string>
+    <string name="text_empty_release_note">No release note</string>
+    <string name="error_cannot_get_download_url">Can\'t get downloading URL</string>
+    <string name="error_empty_github_release_assets">No GitHub release assets to download</string>
+    <string name="text_github_backup_url_used">Backup URL has been used</string>
+    <string name="error_unknown">Unknown error</string>
+    <string name="text_downloading">Downloading</string>
+    <string name="text_file_name">File name</string>
+    <string name="text_version">Version</string>
+    <string name="dialog_button_quit">Quit</string>
+    <string name="dialog_button_retry">Retry</string>
+    <string name="text_half_ellipsis" translatable="false" formatted="true">...</string>
+    <string name="text_preparing" tools:ignore="TypographyEllipsis">Preparing...</string>
+    <string name="error_download_interrupted">Download interrupted</string>
+    <string name="text_download_cancelled">Download cancelled</string>
+    <string name="format_dialog_progress_number_format_mega_bytes" translatable="false">%.2fMB/%.2fMB</string>
+    <string name="format_dialog_progress_number_format_kilo_bytes" translatable="false">%.1fKB/%.1fKB</string>
+    <string name="text_manage_ignored_updates">Manage ignored updates</string>
+    <string name="text_auto_check_for_updates">Auto check for updates</string>
+    <string name="text_last_updates_checked_time">Last checked: %s</string>
+    <string name="key_app_property_version_name" translatable="false">VERSION_NAME</string>
+    <string name="key_app_property_version_code" translatable="false">VERSION_BUILD</string>
+    <string name="error_failed_to_parse_version_info">Failed to parse version info</string>
+    <string name="error_put_value_into_json">Can\'t put value %s into JSON</string>
+    <string name="error_github_api_token_needed">You must provide a GitHub API Token</string>
+    <string name="text_auto_check_for_updates_and_show_snackbar">Check for updates automatically and show a snackbar on homepage</string>
+    <string name="error_cannot_find_editor_view_from_child_view">Cann\'t find EditorView from child view: %s</string>
+    <string name="error_unknown_type">Unknown type: %s</string>
+    <string name="error_sdk_lower_than_o_not_supported_yet">Current function is not supported by Android SDK versions lower than 26 (Android 8.0) yet</string>
    <plurals name="air_error_short_description" key="air_error_short_description">
        <item quantity="one">The description must have at least %d character</item>
        <item quantity="other">The description must have at least %d characters</item>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -79,4 +79,7 @@
    <style name="MtAppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.ActionBar">
        <item name="android:textColorPrimary">#212121</item>
    </style>
+
+    <style name="TextAppearance.Design.Snackbar.Message" parent="android:TextAppearance" />
+
 </resources>
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -41,7 +41,7 @@
                android:key="@string/key_root_mode"
                android:layout="@layout/preference_custom"
                android:dialogMessage="@string/text_root_mode_description"
-                android:title="@string/text_root_mode_title"/>
+                android:title="@string/text_root_mode_title" />

        <org.autojs.autojs.ui.settings.SetHiddenFilesPreference
                android:defaultValue="@string/value_hidden_files_default"
@@ -50,7 +50,7 @@
                android:key="@string/key_hidden_files"
                android:layout="@layout/preference_custom"
                android:dialogMessage="@string/text_hidden_files_description"
-                android:title="@string/text_hidden_files_title"/>
+                android:title="@string/text_hidden_files_title" />

    </com.stardust.theme.preference.ThemeColorPreferenceCategory>

@@ -130,11 +130,28 @@

    <com.stardust.theme.preference.ThemeColorPreferenceCategory
            android:layout="@layout/preference_category_custom"
-            android:title="@string/text_about">
+            android:title="@string/text_updates">
+
+        <org.autojs.autojs.ui.settings.CheckForUpdatesPreference
+                android:layout="@layout/preference_custom"
+                android:title="@string/text_check_for_updates" />
+
+        <com.stardust.theme.preference.ThemeColorSwitchPreference
+                android:defaultValue="true"
+                android:key="@string/key_auto_check_for_updates"
+                android:layout="@layout/preference_custom"
+                android:title="@string/text_auto_check_for_updates"
+                android:summary="@string/text_auto_check_for_updates_and_show_snackbar" />

        <Preference
                android:layout="@layout/preference_custom"
-                android:title="@string/text_check_for_updates" />
+                android:title="@string/text_manage_ignored_updates" />
+
+    </com.stardust.theme.preference.ThemeColorPreferenceCategory>
+
+    <com.stardust.theme.preference.ThemeColorPreferenceCategory
+            android:layout="@layout/preference_category_custom"
+            android:title="@string/text_about">

        <Preference
                android:layout="@layout/preference_custom"