Android程序意外Crash后自动重启

1、自定义UncaughtExceptionHandler

 public class UnCeHandler implements UncaughtExceptionHandler {

     private Thread.UncaughtExceptionHandler mDefaultHandler;
     public final String TAG = "CatchExcep";
     CatchExcApplication application;

     public UnCeHandler(CatchExcApplication application) {
         // 获取系统默认的UncaughtException处理器
         mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
         this.application = application;
     }

     @Override
     public void uncaughtException(Thread thread, Throwable ex) {
         if (!handleException(ex) && mDefaultHandler != null) {
             // 如果用户没有处理则让系统默认的异常处理器来处理
             mDefaultHandler.uncaughtException(thread, ex);
         } else {
             try {
                 Thread.sleep(2000);
             } catch (InterruptedException e) {
                 Log.e(TAG, "error : ", e);
             }
             Intent intent = new Intent(application.getApplicationContext(),MainActivity.class);
             PendingIntent restartIntent = PendingIntent.getActivity(
                     application.getApplicationContext(), 0, intent,
                     Intent.FLAG_ACTIVITY_NEW_TASK);
             // 退出程序
             AlarmManager mgr = (AlarmManager) application.getSystemService(Context.ALARM_SERVICE);
             mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000,restartIntent); // 1秒钟后重启应用
             application.finishActivity();
         }
     }

     /**
      * 自定义错误处理,收集错误信息 发送错误报告等操作均在此完成.
      *
      * @param ex
      * @return true:如果处理了该异常信息;否则返回false.
      */
     private boolean handleException(Throwable ex) {
         if (ex == null) {
             return false;
         }
         // 使用Toast来显示异常信息
         new Thread() {
             @Override
             public void run() {
                 Looper.prepare();
                 Toast.makeText(application.getApplicationContext(),"很抱歉,程序出现异常,即将退出.", Toast.LENGTH_SHORT).show();
                 Looper.loop();
             }
         }.start();
         return true;
     }

2、自定义Application

 public class CatchExcApplication extends Application {

     ArrayList<Activity> list = new ArrayList<Activity>();  

     public CatchExcApplication()
     {
          //设置该CrashHandler为程序的默认处理器
         Thread.setDefaultUncaughtExceptionHandler(new UnCeHandler(this));
     }

     /**
      * Activity关闭时，删除Activity列表中的Activity对象*/
     public void removeActivity(Activity a){
         list.remove(a);
     }  

     /**
      * 向Activity列表中添加Activity对象*/
     public void addActivity(Activity a){
         list.add(a);
     }  

     /**
      * 关闭Activity列表中的所有Activity*/
     public void finishActivity(){
         for (Activity activity : list) {
             if (null != activity) {
                 activity.finish();
             }
         }
         //杀死该应用进程
        android.os.Process.killProcess(android.os.Process.myPid());
     }
 }

3、配置AndroidManifest.xml

  <application
android:name="com.hht.restartdemo.CatchExcApplication"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >
         <activity
             android:name="com.hht.restartdemo.MainActivity"
             android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>