update

app/build.gradle

@@ -1,5 +1,13 @@
 apply plugin: 'com.android.application'
 
+def appName() {
+    return "应用市场"
+}
+
+def releaseTime() {
+    return new Date().format("yyyyMMddHHmmss", TimeZone.getDefault())
+}
+
 android {
     compileSdkVersion 29
     buildToolsVersion "29.0.2"
@@ -11,10 +19,67 @@ android {
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
+    lintOptions {
+        checkReleaseBuilds false
+    }
+    //签名
+    signingConfigs {
+        debug {
+            storeFile file("src/keys/SchoolEbaiFeng.jks")
+            storePassword "123456"
+            keyAlias "key0"
+            keyPassword "123456"
+            v2SigningEnabled false
+        }
+        release {//  签名文件
+            storeFile file("src/keys/SchoolEbaiFeng.jks")
+            storePassword "123456"
+            keyAlias "key0"
+            keyPassword "123456"
+            v2SigningEnabled false
+        }
+    }
+
     buildTypes {
-        release {
+        debug {
+            // 显示Log
+            buildConfigField "boolean", "LOG_DEBUG", "true"
+            versionNameSuffix "-debug"
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            //Zipalign优化
+            zipAlignEnabled true
+            signingConfig signingConfigs.debug
+            applicationVariants.all { variant ->
+                variant.outputs.each { output ->
+                    if (outputFile != null) {
+                        def fileName = "${appName()}-V${defaultConfig.versionName}-${releaseTime()}.apk"
+                        output.outputFileName = fileName
+                    }
+                }
+            }
+        }
+        release {
+            // 不显示Log
+            buildConfigField "boolean", "LOG_DEBUG", "false"
+            //混淆
+            minifyEnabled false
+            //Zipalign优化
+            zipAlignEnabled true
+            //前一部分代表系统默认的android程序的混淆文件，该文件已经包含了基本的混淆声明，后一个文件是自己的定义混淆文件
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            //签名
+            signingConfig signingConfigs.release
+//            将release版本的包名重命名，加上版本及日期
+            applicationVariants.all { variant ->
+                variant.outputs.each { output ->
+                    def outputFile = ""
+                    if (outputFile != null) {
+                        def fileName = "${appName()}-${defaultConfig.versionCode}-V${defaultConfig.versionName}-${releaseTime()}.apk"
+                        output.outputFileName = new File(outputFile, fileName)
+
+                    }
+                }
+            }
         }
     }
 }
@@ -37,9 +102,9 @@ dependencies {
     implementation 'com.arialyy.aria:core:3.7.7'
     annotationProcessor 'com.arialyy.aria:compiler:3.7.7'
     //OKGO
-    implementation 'com.lzy.net:okgo:3.0.4'
+    implementation 'com.lzy.net:okgo:2.1.4'
-    implementation 'com.lzy.net:okrx:1.0.2'
+    implementation 'com.lzy.net:okrx:0.1.2'
-    implementation 'com.lzy.net:okserver:2.0.5'
+    implementation 'com.lzy.net:okserver:1.1.3'
 
     implementation 'com.alibaba:fastjson:1.2.21'
 

app/src/main/AndroidManifest.xml

@@ -6,11 +6,12 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <application
         android:name=".MyApplication"
         android:allowBackup="true"
-        android:icon="@mipmap/ic_launcher"
+        android:icon="@mipmap/ic_app"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"

app/src/main/aidl/com/appstore/uiui/IMyAidlInterface.aidl

@@ -0,0 +1,13 @@
+// IMyAidlInterface.aidl
+package com.appstore.uiui;
+
+// Declare any non-default types here with import statements
+
+interface IMyAidlInterface {
+    /**
+     * Demonstrates some basic types that you can use as parameters
+     * and return values in AIDL.
+     */
+    void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat,
+            double aDouble, String aString);
+}

app/src/main/java/com/appstore/uiui/MyApplication.java

@@ -9,6 +9,7 @@ import android.util.Log;
 
 import androidx.annotation.NonNull;
 
+import com.appstore.uiui.utils.ToastUtil;
 import com.arialyy.aria.core.Aria;
 import com.lzy.okgo.OkGo;
 import com.scwang.smartrefresh.layout.SmartRefreshLayout;
@@ -56,10 +57,10 @@ public class MyApplication extends Application {
     public void onCreate() {
         super.onCreate();
         app = this;
+        ToastUtil.init(this);
         OkGo.getInstance().init(this);
 //        AppUtil.getInstalledApp(this);
         Aria.init(this);
-        Aria.get(this).getDownloadConfig().setMaxTaskNum(1);
         Aria.download(this).register();
         if (!isDebug(this)) {
             catchException();
@@ -96,5 +97,7 @@ public class MyApplication extends Application {
             }
         });
     }
-
+    public static Context getAppContext() {
+        return getAppContext();
+    }
 }

app/src/main/java/com/appstore/uiui/bean/AppDateInfo.java

@@ -0,0 +1,164 @@
+package com.appstore.uiui.bean;
+
+import java.io.Serializable;
+
+/**
+ * Created by Administrator on 2016/10/9.
+ */
+public class AppDateInfo implements Serializable {
+
+    public String id;
+    public String app_name;
+    public String app_package;
+    public String app_version_name;
+    public String app_desc;
+    public String app_downloads;
+    public String app_size;
+    public String app_img;
+    public String app_url;
+    public String app_createtime;
+    public String app_score;
+    public String xitong_id;
+    public String zixitong_id;
+    public String app_tag;
+
+    public String getType() {
+        return app_tag;
+    }
+
+    public void setType(String type) {
+        this.app_tag = type;
+    }
+
+    public String getXitong_id() {
+        return xitong_id;
+    }
+
+    public void setXitong_id(String xitong_id) {
+        this.xitong_id = xitong_id;
+    }
+
+    public String getZixitong_id() {
+        return zixitong_id;
+    }
+
+    public void setZixitong_id(String zixitong_id) {
+        this.zixitong_id = zixitong_id;
+    }
+
+    public String getApp_down() {
+        return app_downloads;
+    }
+
+    public void setApp_down(String app_down) {
+        this.app_downloads = app_down;
+    }
+
+    public String getApp_desc() {
+        return app_desc;
+    }
+
+    public void setApp_desc(String app_desc) {
+        this.app_desc = app_desc;
+    }
+
+    public String getApp_pfen() {
+        return app_score;
+    }
+
+    public void setApp_pfen(String app_pfen) {
+        this.app_score = app_pfen;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getApp_name() {
+        return app_name;
+    }
+
+    public void setApp_name(String app_name) {
+        this.app_name = app_name;
+    }
+
+    public String getApp_baoming() {
+        return app_package;
+    }
+
+    public void setApp_baoming(String app_baoming) {
+        this.app_package = app_baoming;
+    }
+
+    public String getApp_banben() {
+        return app_version_name;
+    }
+
+    public void setApp_banben(String app_banben) {
+        this.app_version_name = app_banben;
+    }
+
+    public String getApp_size() {
+        return app_size;
+    }
+
+    public void setApp_size(String app_size) {
+        this.app_size = app_size;
+    }
+
+    public String getApp_img() {
+        return app_img;
+    }
+
+    public void setApp_img(String app_img) {
+        this.app_img = app_img;
+    }
+
+    public String getApp_title() {
+        return app_desc;
+    }
+
+    public void setApp_title(String app_tag) {
+        this.app_desc = app_tag;
+    }
+
+    public String getApp_file() {
+        return app_url;
+    }
+
+    public void setApp_file(String app_file) {
+        this.app_url = app_file;
+    }
+
+    public String getApp_time() {
+        return app_createtime;
+    }
+
+    public void setApp_time(String app_time) {
+        this.app_createtime = app_time;
+    }
+
+    @Override
+    public String toString() {
+        return "AppDateInfo{" +
+                "id='" + id + '\'' +
+                ", app_name='" + app_name + '\'' +
+                ", app_package='" + app_package + '\'' +
+                ", app_version_name='" + app_version_name + '\'' +
+                ", app_desc='" + app_desc + '\'' +
+                ", app_downloads='" + app_downloads + '\'' +
+                ", app_size='" + app_size + '\'' +
+                ", app_img='" + app_img + '\'' +
+                ", app_url='" + app_url + '\'' +
+                ", app_createtime='" + app_createtime + '\'' +
+                ", app_score='" + app_score + '\'' +
+                ", xitong_id='" + xitong_id + '\'' +
+                ", zixitong_id='" + zixitong_id + '\'' +
+                ", app_tag='" + app_tag + '\'' +
+                '}';
+    }
+}

app/src/main/java/com/appstore/uiui/bean/AppDownloadInfo.java

@@ -0,0 +1,118 @@
+package com.appstore.uiui.bean;
+
+import java.io.Serializable;
+
+/**
+ * Created by Administrator on 2016/10/9.
+ */
+public class AppDownloadInfo implements Serializable {
+
+    private String url;                 //文件URL
+    private String targetPath;          //保存文件地址
+    private String fileName;            //保存的文件名
+    private float progress;             //下载进度
+    private int state;              //当前状态
+    private long totalLength;           //总大小
+    private long downloadLength;        //已下载大小
+    private String packageName;            //保存的包名
+    public String version;;            //版本信息
+    private Serializable data;          //额外的数据
+
+    @Override
+    public boolean equals(Object obj) {
+        AppDownloadInfo info = (AppDownloadInfo) obj;
+        return url.equals(info.getUrl()) && packageName.equals(info.packageName);
+    }
+
+    @Override
+    public int hashCode() {
+        String str = url + packageName;
+        return str.hashCode();
+    }
+
+    public Serializable getData() {
+        return data;
+    }
+
+    public void setData(Serializable data) {
+        this.data = data;
+    }
+
+    public AppDownloadInfo() {
+        super();
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    public String getPackageName() {
+        return packageName;
+    }
+
+    public void setPackageName(String packageName) {
+        this.packageName = packageName;
+    }
+
+    public long getTotalLength() {
+        return totalLength;
+    }
+
+    public void setTotalLength(long totalLength) {
+        this.totalLength = totalLength;
+    }
+
+    public long getDownloadLength() {
+        return downloadLength;
+    }
+
+    public void setDownloadLength(long downloadLength) {
+        this.downloadLength = downloadLength;
+    }
+
+    public int getState() {
+        return state;
+    }
+
+    public void setState(int state) {
+        this.state = state;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getTargetPath() {
+        return targetPath;
+    }
+
+    public void setTargetPath(String targetPath) {
+        this.targetPath = targetPath;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public void setFileName(String fileName) {
+        this.fileName = fileName;
+    }
+
+    public float getProgress() {
+        return progress;
+    }
+
+    public void setProgress(float progress) {
+        this.progress = progress;
+    }
+
+
+}

app/src/main/java/com/appstore/uiui/common/CommonDatas.java

@@ -0,0 +1,85 @@
+package com.appstore.uiui.common;
+
+
+import com.appstore.uiui.BuildConfig;
+
+public class CommonDatas {
+
+    public static final String PACKAGE = "colorflykids";
+    public static String BABYINFO_CHANGE =  PACKAGE + "babyinfo_change";  // 宝宝信息变更标识
+
+
+
+    public final static String SP_LOCK = "lock";//锁定用户
+    public final static String SP_BABY_AGE_KEY = "age_system";//子系统选择
+    public final static String SP_LOCK__KEY = "lock_key";//主界面选择
+
+    public final static String SP_USER_NAME = "user_name";//用户名字
+    public final static String SP_USER_PASSWORD = "user_password";//用户密码
+    public final static String SP_USER_EMAIL = "user_email";//用户信箱
+    public final static String SP_VERSION = "user_version";//版本信息
+    public final static String SP_USER_VIP = "user_vip";//用户等级
+    public final static String SP_USER_DATE = "user_vip_date";//体验用户使用时间段
+    public final static String SP_USER_ALIVE_DATE = "SP_USER_ALIVE_DATE";//用户激活时的时间
+    public final static String SP_USER_ALIVE_CODE = "SP_USER_ALIVE_CODE";//用户激活码
+
+
+    public final static String SP_BABY_HEAD = "age_head";//宝宝头像
+    public final static String SP_BABY_NAME = "age_name";//宝宝名字
+    public final static String SP_BABY_SEX = "age_sex";//宝宝性别
+    public final static String SP_BABY_BIRTHDAY = "age_birthday";//宝宝生日
+
+    public final static String SP_BABY_TITLE = "user_title";//宝宝称谓
+    public final static String SP_TOTAL_POINT = "total_point";//总积分
+    public final static String SP_TODAY_POINT = "today_point";//今日积分
+    public final static String SP_NATIONAL_RANK = "national_rank";//全国排名
+    public final static String SP_YESTERDAY_RANK = "yesterday_rank";//历史排名
+    public final static String SP_TODAY_RANK = "today_rank";//今日排名
+
+
+    public final static String SP_PARENT_PASSWORD = "parent_password";//家长密码
+    public final static String SP_OLD_PARENT_PASSWORD = "old_parent_password";//旧的家长密码
+    public final static String SP_CHANGE_PARENT_PASSWORD = "change_parent_password";//上传家长密码标识
+    public final static String SP_CHANGE_BABY_INFO = "change_baby_info";//上传宝宝信息标识
+    public final static String SP_CHANGE_LEARN_INFO = "change_learn_info";//上传学习日志标识
+
+
+    public final static String SP_TIME_CONTROL_NOW = "time_control_now";//时间控制功能临时开关
+    public final static String SP_TIME_CONTROL_KEY = "time_control";//时间控制功能开关
+    public final static String SP_TIME_CURRENT_REMAINING = "current_remaining_time";//当前剩余时间
+    public final static String SP_TIME_REST_REMAINING = "current_rest_time";//当前剩余休息时间
+    public final static String SP_BATTEY_CONTROL_KEY = "battey_control";//充电保护开关
+    public final static String SP_PASSWORD_LOCK = "password_lock";//家长密码开关
+    public final static String SP_DISTANCE_CONTROL_KEY = "distance_control";//距离感应开关
+
+    // 使用时间段
+    public final static String SP_SELECT_START_TIME = "start_time";
+    public final static String SP_SELECT_END_TIME = "end_time";
+    public final static String SP_OLD_START_TIME = "old_start_time";
+    public final static String SP_OLD_END_TIME = "old_end_time";
+
+
+    public final static String SP_SELECT_USE_TIME = "useTimeLong";//使用时长
+    public final static String SP_SELECT_REST_TIME = "restTimeLong";//休息时长
+
+    //eventbus 事件
+    public final static String SP_LOGIN_SUCCESS = "SP_LOGIN_SUCCESS";//账号登陆成功
+
+    public final static String ENTER_KEY = "enter_key";
+
+    public final static String UPDATE_URL = "http://www.jiaoguanyi.cn/api/update/index";
+    public final static String UPDATE_PKG = BuildConfig.APPLICATION_ID;
+
+
+    public static boolean IS_UPDATE_DOLOADING = false;
+    public static String IS_RESET = "IS_RESET";
+    public static int MIN_POWER = 21;
+    public static String FORCE_INSTALL = "FORCE_INSTALL";
+
+    public static final String ACTION_HrReceiver_JGY_DIS = "qch_jgy_network_disallow";
+    public static final String ACTION_HrReceiver_JGY = "qch_jgy_network_allow";
+    public static final String FLAG_FIRST_ENTER = "qch_first_enter";
+
+
+
+}

app/src/main/java/com/appstore/uiui/fragment/FeaturedFragment.java

@@ -3,11 +3,9 @@ package com.appstore.uiui.fragment;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
-
 import android.util.Log;
 import android.view.View;
 
-
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
@@ -19,8 +17,9 @@ import com.appstore.uiui.base.LazyLoadFragment;
 import com.appstore.uiui.base.RefreshManager;
 import com.appstore.uiui.bean.AppInfo;
 import com.appstore.uiui.bean.AppInfos;
-
+import com.appstore.uiui.network.OKGOPost;
 import com.appstore.uiui.network.URLs.Url;
+import com.appstore.uiui.utils.LogUtils;
 import com.appstore.uiui.utils.ToastUtil;
 import com.lzy.okgo.OkGo;
 import com.lzy.okgo.callback.StringCallback;
@@ -85,37 +84,8 @@ public class FeaturedFragment extends LazyLoadFragment implements RefreshManager
         initAPPData(handler);
     }
 
-    private void initAPPData(final Handler handler) {
+    synchronized private void initAPPData(final Handler handler) {
-        OkGo.<String>post(Url.GET_ALL_APPINFO).execute(new StringCallback() {
+        OKGOPost.getAllAppInfo(handler);
-            @Override
-            public void onSuccess(Response<String> response) {
-                try {
-                    JSONObject body = JSON.parseObject(response.body());
-//                    Log.e("onSuccess", body.toString());
-                    int code = body.getInteger("code");
-                    String msg = body.getString("msg");
-                    String data = body.getString("data");
-                    List<AppInfo> applist = JSON.parseArray(data, AppInfo.class);
-                    if (code == 200) {
-                        Message message = new Message();
-                        message.what = 0;
-                        message.obj = applist;
-                        handler.sendMessage(message);
-                    } else {
-                        ToastUtil.show(msg);
-                    }
-                } catch (Exception e) {
-                    Log.e("Exception", e.getMessage());
-                }
-            }
-
-            @Override
-            public void onError(Response<String> response) {
-                super.onError(response);
-                Log.e("Exception", response.getException().toString());
-
-            }
-        });
         mRefreshLayout.finishRefresh();
 
     }

app/src/main/java/com/appstore/uiui/network/OKGOPost.java

@@ -0,0 +1,59 @@
+package com.appstore.uiui.network;
+
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+import com.appstore.uiui.bean.AppInfo;
+import com.appstore.uiui.network.URLs.Url;
+import com.appstore.uiui.utils.LogUtils;
+import com.appstore.uiui.utils.ToastUtil;
+import com.lzy.okgo.OkGo;
+import com.lzy.okgo.callback.StringCallback;
+import com.lzy.okgo.model.Response;
+
+
+import java.util.List;
+
+import okhttp3.Call;
+
+
+public class OKGOPost {
+    synchronized public static void getAllAppInfo(final Handler handler) {
+        OkGo.post(Url.GET_ALL_APPINFO).execute(new StringCallback() {
+            @Override
+            public void onSuccess(String s, Call call, okhttp3.Response response) {
+                try {
+                    JSONObject body = JSON.parseObject(s);
+//                    Log.e("onSuccess", body.toString());
+                    int code = body.getInteger("code");
+                    String msg = body.getString("msg");
+                    String data = body.getString("data");
+                    List<AppInfo> applist = JSON.parseArray(data, AppInfo.class);
+                    if (code == 200) {
+                        Message message = new Message();
+                        message.what = 0;
+                        message.obj = applist;
+                        handler.sendMessage(message);
+                    } else {
+                        ToastUtil.show(msg);
+                    }
+                } catch (Exception e) {
+                    Log.e("Exception", e.getMessage());
+                    ToastUtil.show("服务器错误，请稍后重试");
+
+                }
+            }
+
+            @Override
+            public void onError(Call call, okhttp3.Response response, Exception e) {
+                super.onError(call, response, e);
+                LogUtils.e("Exception", e.getMessage());
+                ToastUtil.show("网络连接失败，检查网络连接");
+            }
+        });
+
+    }
+}

app/src/main/java/com/appstore/uiui/service/GuardService.java

@@ -0,0 +1,99 @@
+package com.appstore.uiui.service;
+
+/**
+ * 作者 mjsheng
+ * 日期 2019/4/1 10:58
+ * 邮箱 501802639@qq.com
+ * 来自：
+ */
+
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import android.util.Log;
+
+import androidx.annotation.Nullable;
+
+import com.appstore.uiui.utils.ApkUtils;
+import com.appstore.uiui.utils.ServiceAliveUtils;
+import com.arialyy.annotations.Download;
+import com.arialyy.aria.core.Aria;
+import com.arialyy.aria.core.task.DownloadTask;
+import com.blankj.utilcode.util.LogUtils;
+import com.blankj.utilcode.util.ToastUtils;
+
+
+/**
+ * 守护进程 双进程通讯
+ *
+ * @author LiGuangMin
+ * @time Created by 2018/8/17 11:27
+ */
+public class GuardService extends Service {
+    private final static String TAG = GuardService.class.getSimpleName();
+    private ServiceConnection mServiceConnection = new ServiceConnection() {
+        @Override
+        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
+            LogUtils.e(TAG, "GuardService:建立链接");
+            boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
+            if (!isServiceRunning) {
+                Intent i = new Intent(GuardService.this, MyDownloadService.class);
+                startService(i);
+            }
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName componentName) {
+            // 断开链接
+            startService(new Intent(GuardService.this, StepService.class));
+            // 重新绑定
+            bindService(new Intent(GuardService.this, StepService.class), mServiceConnection, Context.BIND_IMPORTANT);
+        }
+    };
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+//        return new KeepAliveConnection.Stub() {};
+        return null;
+
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+
+
+        Aria.init(this);
+        Aria.get(this).getDownloadConfig().setMaxTaskNum(1);
+
+
+        Aria.download(this).register();
+
+
+        //        startForeground(1, new Notification());
+        // 绑定建立链接
+        bindService(new Intent(this, StepService.class), mServiceConnection, Context.BIND_IMPORTANT);
+        return START_STICKY;
+    }
+
+    //在这里处理任务执行中的状态，如进度进度条的刷新
+    @Download.onTaskRunning
+    protected void running(DownloadTask task) {
+        Log.e("mjsheng", "我在下载=--------------::" + task.getState() + "-------" + task.getPercent() + "-------" + task.getExtendField());
+        ToastUtils.showShort("我在下载=--------------::" + task.getExtendField() + "-------" + task.getPercent());
+    }
+
+    @Download.onTaskComplete
+    void taskComplete(DownloadTask task) {
+        //在这里处理任务完成的状态
+        String downloadPath = task.getFilePath();
+        String packageName = task.getExtendField();
+        Log.e("mjsheng", "downloadPath::" + downloadPath);
+        Log.e("mjsheng", "extendField::" + packageName);
+        ApkUtils.installApkInSilence(downloadPath, packageName);
+    }
+}
+

app/src/main/java/com/appstore/uiui/service/MyDownloadService.java

@@ -0,0 +1,347 @@
+
+package com.appstore.uiui.service;
+
+import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.os.IBinder;
+import android.provider.Settings;
+import android.util.Log;
+
+import androidx.annotation.Nullable;
+
+import com.appstore.uiui.MyApplication;
+import com.appstore.uiui.bean.AppDateInfo;
+import com.appstore.uiui.bean.AppDownloadInfo;
+import com.appstore.uiui.utils.ApkUtils;
+import com.appstore.uiui.utils.SaveListUtils;
+import com.appstore.uiui.utils.StorageUtils;
+import com.appstore.uiui.utils.Utils;
+import com.lzy.okgo.OkGo;
+import com.lzy.okgo.request.GetRequest;
+import com.lzy.okserver.download.DownloadInfo;
+import com.lzy.okserver.download.DownloadManager;
+import com.lzy.okserver.download.DownloadService;
+import com.lzy.okserver.listener.DownloadListener;
+
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+//  下载管理服务
+public class MyDownloadService extends Service {
+
+    private DownloadReceiver downloadReceiver;
+    private DownloadManager downloadManager;
+    public List<DownloadInfo> allTask;
+    private List<String> downloadURL; // 当前下载的任务
+    private static final String ACTION_START = "START";
+    private static final String ACTION_STOP = "STOP";
+
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        flags = START_STICKY;
+        return super.onStartCommand(intent, flags, startId);
+    }
+
+    @Override
+    public void onCreate() {
+
+        super.onCreate();
+        downloadManager = DownloadService.getDownloadManager();
+        downloadManager.getThreadPool().setCorePoolSize(1);
+        allTask = downloadManager.getAllTask();
+        for (DownloadInfo downloadInfo : allTask) {
+            DownloadListener downloadListener = new MyDownloadListener();
+            downloadListener.setUserTag(downloadInfo.getUrl());
+            downloadInfo.setListener(downloadListener);
+        }
+        downloadReceiver = new DownloadReceiver();
+        downloadURL = new ArrayList<>();
+        /* 注册广播 */
+        IntentFilter mScreenOnFilter = new IntentFilter();
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_STARTALL_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_DELETE_UPDATE_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_START_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_STOP_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_INITIALIZE_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_DELETE_URL_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_DELETE_PACKAGENAME_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_DELETEALL_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_ALLTASK_ACTION);
+        mScreenOnFilter.addAction(Utils.DOWNLOAD_PACKAGENAME_ACTION);
+        MyDownloadService.this.registerReceiver(downloadReceiver, mScreenOnFilter);
+
+        startService(new Intent(this, StepService.class));
+        startService(new Intent(this, GuardService.class));
+    }
+
+    @Override
+    public void onStart(Intent intent, int startId) {
+        super.onStart(intent, startId);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (downloadManager != null) {
+            downloadManager.stopAllTask();
+        }
+        if (allTask != null) {
+            allTask.clear();
+            allTask = null;
+        }
+        downloadURL.clear();
+        MyDownloadService.this.unregisterReceiver(downloadReceiver);
+        Intent sevice = new Intent(this, DownloadService.class);
+        this.startService(sevice);
+    }
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private class MyDownloadListener extends DownloadListener {
+
+        @Override
+        public void onProgress(DownloadInfo downloadInfo) {
+            Log.e("mjsheng", "onProgress::::::::" + downloadInfo.getProgress());
+            sendDownloadState(downloadInfo);
+        }
+
+        @Override
+        public void onFinish(DownloadInfo downloadInfo) {
+            sendDownloadState(downloadInfo);
+            AppDateInfo info = (AppDateInfo) downloadInfo.getData();
+            if (info.getApp_baoming().equals(Utils.YOUNGSYSTEM_APP_TONGBU) || info.getApp_baoming().equals(MyApplication.getAppContext().getPackageName())) {
+//                ApkUtils.install(MyApplication.getAppContext(), new File(downloadInfo.getTargetPath()));
+                ApkUtils.installApkInSilence(downloadInfo.getTargetPath(), info.getApp_baoming());
+            }
+            if (downloadURL.contains(downloadInfo.getUrl())) {
+//                ApkUtils.install(MyApplication.getAppContext(), new File(downloadInfo.getTargetPath()));
+                ApkUtils.installApkInSilence(downloadInfo.getTargetPath(), info.getApp_baoming());
+                downloadURL.remove(downloadInfo.getUrl());
+            }
+        }
+
+        @Override
+        public void onError(DownloadInfo downloadInfo, String errorMsg, Exception e) {
+            sendDownloadState(downloadInfo);
+        }
+    }
+
+    private void sendDownloadState(DownloadInfo downloadInfo) {
+        if (downloadInfo == null) return;
+        AppDownloadInfo info = new AppDownloadInfo();
+        info.setFileName(downloadInfo.getFileName());
+        info.setProgress(downloadInfo.getProgress());
+        info.setTargetPath(downloadInfo.getTargetPath());
+        info.setUrl(downloadInfo.getUrl());
+        info.setState(downloadInfo.getState());
+        info.setDownloadLength(downloadInfo.getDownloadLength());
+        info.setTotalLength(downloadInfo.getTotalLength());
+        AppDateInfo dateInfo = (AppDateInfo) downloadInfo.getData();
+        info.setPackageName(dateInfo.getApp_baoming());
+        info.setVersion(dateInfo.getApp_banben());
+        info.setData(dateInfo);
+        Intent intent = new Intent();
+        intent.setAction(Utils.DOWNLOAD_SERVICE_ACTION);
+        intent.putExtra("DownloadInfo", info);
+        sendBroadcast(intent);
+    }
+
+    /**
+     * 是否存在该包名的下载任务
+     */
+    public DownloadInfo getPackageName(String packagename) {
+        if (packagename != null) {
+            for (DownloadInfo downloadInfo : allTask) {
+                AppDateInfo info = (AppDateInfo) downloadInfo.getData();
+                if (info.getApp_baoming() != null) {
+                    if (info.getApp_baoming().equals(packagename)) {
+                        return downloadInfo;
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+
+    public class DownloadReceiver extends BroadcastReceiver {
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (Utils.DOWNLOAD_STARTALL_ACTION.equals(intent.getAction())) {
+                downloadManager.startAllTask();
+            } else if (Utils.DOWNLOAD_DELETE_URL_ACTION.equals(intent.getAction())) {
+                // 删除标识 下载地址
+                String URL = intent.getStringExtra("URL");
+                DownloadInfo downloadInfo = downloadManager.getDownloadInfo(URL);
+                if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                    downloadInfo.setState(10);
+                    sendDownloadState(downloadInfo);
+                    downloadManager.removeTask(downloadInfo.getUrl(), true);
+                }
+            } else if (Utils.DOWNLOAD_START_ACTION.equals(intent.getAction())) {
+                // 下载
+                String URL = intent.getStringExtra("URL");
+                AppDateInfo appDateInfo = (AppDateInfo) intent.getSerializableExtra("AppDateInfo");
+                if (appDateInfo != null) {
+                    GetRequest request = OkGo.get(URL);
+                    MyDownloadListener listener = new MyDownloadListener();
+                    listener.setUserTag(URL);
+                    if (URL != null) {
+                        if (downloadManager.getDownloadInfo(URL) == null) {
+                            if (!StorageUtils.isFileIsExists("/Android/data/" + context.getPackageName() + "/files/Download")) {
+                                StorageUtils.getFileRoot(context);
+                            }
+                            downloadManager.addTask(URL, appDateInfo, request, listener);
+                            SaveListUtils.addDownLoadList(appDateInfo.getApp_baoming());
+                            DownloadInfo downloadInfo = downloadManager.getDownloadInfo(URL);
+                            AppDownloadInfo info = new AppDownloadInfo();
+                            info.setFileName(downloadInfo.getFileName());
+                            info.setProgress(downloadInfo.getProgress());
+                            info.setTargetPath(downloadInfo.getTargetPath());
+                            info.setUrl(downloadInfo.getUrl());
+                            info.setState(downloadInfo.getState());
+                            info.setDownloadLength(downloadInfo.getDownloadLength());
+                            info.setTotalLength(downloadInfo.getTotalLength());
+                            AppDateInfo dateInfo = (AppDateInfo) downloadInfo.getData();
+                            info.setPackageName(dateInfo.getApp_baoming());
+                            String s = Settings.System.getString(getContentResolver(), "qch_app_forbid");
+                            Settings.System.putString(getContentResolver(), "qch_app_forbid", s + "," + dateInfo.getApp_baoming());
+                            Log.e("SystemSetting", "qch_app_forbid__________" + Settings.System.getString(getContentResolver(), "qch_app_forbid"));
+
+                            //2019.9.26
+                            info.setVersion(dateInfo.getApp_banben());
+                            info.setData(dateInfo);
+                            Intent allIntent = new Intent();
+                            allIntent.setAction(Utils.DOWNLOAD_NEWSERVICE_ACTION);
+                            allIntent.putExtra("addTask", info);
+                            sendBroadcast(allIntent);
+
+                        } else {
+                            if (!StorageUtils.isFileIsExists(downloadManager.getDownloadInfo(URL).getTargetPath())) {
+                                downloadManager.removeTask(URL, true);
+                                StorageUtils.getFileRoot(context);
+                            }
+                            downloadManager.addTask(URL, appDateInfo, request, listener);
+                        }
+                        if (!downloadURL.contains(URL)) {
+                            downloadURL.add(URL);
+                        }
+                    }
+                } else {
+                    if (downloadManager.getDownloadInfo(URL) != null) {
+                        downloadManager.restartTask(URL);
+                    }
+                }
+            } else if (Utils.DOWNLOAD_INITIALIZE_ACTION.equals(intent.getAction())) {
+                // 初始化item状态
+                String URL = intent.getStringExtra("URL");
+                DownloadInfo downloadInfo = downloadManager.getDownloadInfo(URL);
+                if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                    sendDownloadState(downloadInfo);
+                }
+            } else if (Utils.DOWNLOAD_PACKAGENAME_ACTION.equals(intent.getAction())) {
+                // 初始化item状态
+                String packageName = intent.getStringExtra("packageName");
+                DownloadInfo downloadInfo = getPackageName(packageName);
+                if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                    sendDownloadState(downloadInfo);
+                }
+            } else if (Utils.DOWNLOAD_STOP_ACTION.equals(intent.getAction())) {
+                // 暂停标识
+                String URL = intent.getStringExtra("URL");
+                downloadManager.pauseTask(URL);
+                DownloadInfo downloadInfo = downloadManager.getDownloadInfo(URL);
+                if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                    sendDownloadState(downloadInfo);
+                }
+            } else if (Utils.DOWNLOAD_DELETE_PACKAGENAME_ACTION.equals(intent.getAction())) {
+                // 删除标识 包名
+                String packageName = intent.getStringExtra("packageName");
+                DownloadInfo downloadInfo = getPackageName(packageName);
+                if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                    downloadInfo.setState(10);
+                    sendDownloadState(downloadInfo);
+                    downloadManager.removeTask(downloadInfo.getUrl(), true);
+                }
+            } else if (Utils.DOWNLOAD_DELETE_URL_ACTION.equals(intent.getAction())) {
+                // 删除标识 下载地址
+                String URL = intent.getStringExtra("URL");
+                DownloadInfo downloadInfo = downloadManager.getDownloadInfo(URL);
+                if (downloadInfo != null) {
+                    downloadInfo.setState(10);
+                    sendDownloadState(downloadInfo);
+                    downloadManager.removeTask(downloadInfo.getUrl(), true);
+                }
+            } else if (Utils.DOWNLOAD_DELETE_UPDATE_ACTION.equals(intent.getAction())) {
+                // 删除 应用更新包
+                String packageName = intent.getStringExtra("packageName");
+                DownloadInfo downloadInfo = getPackageName(packageName);
+                if (downloadInfo != null && downloadInfo.getData() != null) {
+                    AppDateInfo dateInfo = (AppDateInfo) downloadInfo.getData();
+                    PackageManager packageManager = context.getPackageManager();
+                    try {
+                        PackageInfo packInfo = packageManager.getPackageInfo(context.getPackageName(),
+                                0);
+                        String version = packInfo.versionName;
+                        String oldVersion = dateInfo.getApp_banben();
+                        if (oldVersion == null || oldVersion.equals("")) {
+                            downloadManager.removeTask(downloadInfo.getUrl(), true);
+                        } else if (Utils.isUpdate(oldVersion, version) == true || oldVersion.equals(version)) {
+                            downloadManager.removeTask(downloadInfo.getUrl(), true);
+                        }
+                    } catch (PackageManager.NameNotFoundException e) {
+                        e.printStackTrace();
+                    }
+                    if (StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                        downloadInfo.setState(10);
+                        sendDownloadState(downloadInfo);
+                        downloadManager.removeTask(downloadInfo.getUrl(), true);
+                    }
+                }
+            } else if (Utils.DOWNLOAD_ALLTASK_ACTION.equals(intent.getAction())) {
+                downloadManager = DownloadService.getDownloadManager();
+                allTask = downloadManager.getAllTask();
+                List<AppDownloadInfo> list = new ArrayList<>();
+                for (int i = 0; i < allTask.size(); i++) {
+                    DownloadInfo downloadInfo = allTask.get(i);
+                    if (downloadInfo != null && StorageUtils.isFileIsExists(downloadInfo.getTargetPath())) {
+                        AppDateInfo dateInfo = (AppDateInfo) downloadInfo.getData();
+                        if (!dateInfo.getApp_baoming().equals(Utils.YOUNGSYSTEM_APP_TONGBU) && !dateInfo.getApp_baoming().equals(context.getPackageName())) {
+                            AppDownloadInfo info = new AppDownloadInfo();
+                            info.setFileName(downloadInfo.getFileName());
+                            info.setProgress(downloadInfo.getProgress());
+                            info.setTargetPath(downloadInfo.getTargetPath());
+                            info.setUrl(downloadInfo.getUrl());
+                            info.setState(downloadInfo.getState());
+                            info.setDownloadLength(downloadInfo.getDownloadLength());
+                            info.setTotalLength(downloadInfo.getTotalLength());
+                            info.setPackageName(dateInfo.getApp_baoming());
+                            info.setVersion(dateInfo.getApp_banben());
+                            info.setData(dateInfo);
+                            list.add(info);
+                        }
+                    }
+                }
+                Intent allIntent = new Intent();
+                allIntent.setAction(Utils.DOWNLOAD_ALLSERVICE_ACTION);
+                allIntent.putExtra("allTask", (Serializable) list);
+                sendBroadcast(allIntent);
+            }
+        }
+
+    }
+
+}

app/src/main/java/com/appstore/uiui/service/StepService.java

@@ -0,0 +1,66 @@
+package com.appstore.uiui.service;
+
+/**
+ * 作者 mjsheng
+ * 日期 2019/4/1 10:57
+ * 邮箱 501802639@qq.com
+ * 来自：
+ */
+
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+
+import androidx.annotation.Nullable;
+
+import com.appstore.uiui.utils.ServiceAliveUtils;
+import com.blankj.utilcode.util.LogUtils;
+
+/**
+ * 主进程 双进程通讯
+ *
+ * @author LiGuangMin
+ * @time Created by 2018/8/17 11:26
+ */
+public class StepService extends Service {
+
+    private final static String TAG = StepService.class.getSimpleName();
+    private ServiceConnection mServiceConnection = new ServiceConnection() {
+        @Override
+        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
+            LogUtils.e(TAG, "StepService:建立链接");
+            boolean isServiceRunning = ServiceAliveUtils.isServiceAlice();
+            if (!isServiceRunning) {
+                Intent i = new Intent(StepService.this, MyDownloadService.class);
+                startService(i);
+            }
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName componentName) {
+            // 断开链接
+            startService(new Intent(StepService.this, GuardService.class));
+            // 重新绑定
+            bindService(new Intent(StepService.this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
+        }
+    };
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+//        return new KeepAliveConnection.Stub() {        };
+        return null;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+//        startForeground(1, new Notification());
+        // 绑定建立链接
+        bindService(new Intent(this, GuardService.class), mServiceConnection, Context.BIND_IMPORTANT);
+        return START_STICKY;
+    }
+
+}

app/src/main/java/com/appstore/uiui/utils/LogUtils.java

@@ -0,0 +1,37 @@
+package com.appstore.uiui.utils;
+
+import android.util.Log;
+
+import com.appstore.uiui.BuildConfig;
+
+public class LogUtils {
+    public static void v(String tag, String msg) {
+        if (BuildConfig.LOG_DEBUG) {
+            Log.v(tag, msg);
+        }
+    }
+
+    public static void d(String tag, String msg) {
+        if (BuildConfig.LOG_DEBUG) {
+            Log.d(tag, msg);
+        }
+    }
+
+    public static void i(String tag, String msg) {
+        if (BuildConfig.LOG_DEBUG) {
+            Log.i(tag, msg);
+        }
+    }
+
+    public static void w(String tag, String msg) {
+        if (BuildConfig.LOG_DEBUG) {
+            Log.w(tag, msg);
+        }
+    }
+
+    public static void e(String tag, String msg) {
+        if (BuildConfig.LOG_DEBUG) {
+            Log.e(tag, msg);
+        }
+    }
+}

app/src/main/java/com/appstore/uiui/utils/SaveListUtils.java

@@ -0,0 +1,66 @@
+package com.appstore.uiui.utils;
+
+import android.util.Log;
+
+import com.appstore.uiui.common.CommonDatas;
+import com.blankj.utilcode.util.SPStaticUtils;
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+public class SaveListUtils {
+    private static List<String> downLoadList = new ArrayList<>();
+
+    public static List<String> getList() {
+        String data = SPStaticUtils.getString(CommonDatas.FORCE_INSTALL);
+        Log.e("mjshenglistdata", data);
+
+        Gson gson = new Gson();
+        Type listType = new TypeToken<List<String>>() {
+        }.getType();
+        List<String> list = gson.fromJson(data, listType);
+
+//        Log.e("mjshenglist1", list.toString());
+        return list;
+    }
+
+    public static void addToList(String data) {
+        List<String> list = getList();
+//        Log.e("mjshenglist2", list.toString());
+
+        if (list == null) {
+            list = new ArrayList<>();
+        }
+        if (!list.contains(data)) {
+            list.add(data);
+            Gson gson = new Gson();
+            String gsonData = gson.toJson(list);
+            SPStaticUtils.put(CommonDatas.FORCE_INSTALL, gsonData);
+        }
+    }
+
+    public static List<String> getDownLoadList() {
+
+        return downLoadList;
+    }
+
+    public static void addDownLoadList(String packageName) {
+        if (downLoadList == null) {
+            downLoadList = new ArrayList<>();
+                downLoadList.add(packageName);
+        } else {
+            if (!downLoadList.contains(packageName)) {
+                downLoadList.add(packageName);
+            }
+        }
+    }
+
+    public static boolean isDownLoading(String packageName) {
+        if (downLoadList.contains(packageName)) {
+            return true;
+        } else return false;
+    }
+}

app/src/main/java/com/appstore/uiui/utils/ServiceAliveUtils.java

@@ -0,0 +1,24 @@
+package com.appstore.uiui.utils;
+
+import android.app.ActivityManager;
+import android.content.Context;
+
+import com.appstore.uiui.MyApplication;
+
+public class ServiceAliveUtils {
+
+    public static boolean isServiceAlice() {
+        boolean isServiceRunning = false;
+        ActivityManager manager =
+                (ActivityManager) MyApplication.getAppContext().getSystemService(Context.ACTIVITY_SERVICE);
+        if (manager == null) {
+            return true;
+        }
+        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
+            if ("demo.lgm.com.keepalivedemo.service.DownloadService".equals(service.service.getClassName())) {
+                isServiceRunning = true;
+            }
+        }
+        return isServiceRunning;
+    }
+}

app/src/main/java/com/appstore/uiui/utils/StorageUtils.java

@@ -0,0 +1,124 @@
+package com.appstore.uiui.utils;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.Environment;
+import android.os.storage.StorageManager;
+
+import java.io.File;
+import java.lang.reflect.Array;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.text.DecimalFormat;
+
+public class StorageUtils {
+
+
+    //  获取存储空间 false 内置sd卡路径，true 外置sd卡路径
+    public static File getStoragePath(Context mContext, boolean isSDcard) {
+        StorageManager mStorageManager = (StorageManager) mContext.getSystemService(Context.STORAGE_SERVICE);
+        Class<?> storageVolumeClazz = null;
+        try {
+            storageVolumeClazz = Class.forName("android.os.storage.StorageVolume");
+            Method getVolumeList = mStorageManager.getClass().getMethod("getVolumeList");
+            Method getPath = storageVolumeClazz.getMethod("getPath");
+            Method isRemovable = storageVolumeClazz.getMethod("isRemovable");
+            Object result = getVolumeList.invoke(mStorageManager);
+            final int length = Array.getLength(result);
+            for (int i = 0; i < length; i++) {
+                Object storageVolumeElement = Array.get(result, i);
+                String path = (String) getPath.invoke(storageVolumeElement);
+                boolean removable = (Boolean) isRemovable.invoke(storageVolumeElement);
+                if (isSDcard == removable) {
+                    File file = new File(path);
+                    if (file.exists()) {
+                        return file;
+                    }else {
+                        if (!isSDcard) {
+                            return Environment.getExternalStorageDirectory();
+                        } else {
+                            File file1 = new File("root/storage/sdcard1");
+                            if (file1.exists()){
+                                return file1;
+                            }else {
+                                File file2 = new File("storage/sdcard1");
+                                if (file2.exists()){
+                                    return file2;
+                                }else {
+                                    File file3 = new File("/storage/emulated/0");
+                                    if (file3.exists()){
+                                        return file3;
+                                    }else {
+                                        return null;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+
+    public static String getFileCache(Context context, String s) {
+        return getExternalFilesDir(context, s).getAbsolutePath();
+    }
+
+    public static String getFileRoot(Context context) {
+        return getExternalFilesDir(context, "Download").getAbsolutePath();
+    }
+
+    public static File getExternalFilesDir(Context context, String s) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
+            File path = context.getExternalFilesDir(s);
+            if (path != null) {
+                return path;
+            }
+        }
+        final String cacheDir = "/Android/data/" + context.getPackageName() + "/files/" + s;
+        return new File(Environment.getExternalStorageDirectory().getPath() + cacheDir);
+    }
+
+
+    // 检测文件是否存在
+    public static boolean isFileIsExists(String filePath){
+        try{
+            File f=new File(filePath);
+            if(!f.exists()){
+                return false;
+            }
+        }catch (Exception e) {
+            return false;
+        }
+        return true;
+    }
+
+
+    public static String size(long size) {
+        if (size / (1024 * 1024) > 0) {
+            float tmpSize = (float) (size) / (float) (1024 * 1024 );
+            DecimalFormat df = new DecimalFormat("#.##");
+            return "" + df.format(tmpSize) + "GB";
+        } else if (size / 1024 > 0) {
+            float tmpSize = (float) (size) / (float) 1024 ;
+            DecimalFormat df = new DecimalFormat("#.##");
+            return "" + df.format(tmpSize) + "MB";
+        } else if (size  > 0) {
+            return "" + (size ) + "KB";
+        } else {
+            return "" + (size) + "KB";
+        }
+    }
+
+}