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));   
    }
    
  14       
    /** 
     * 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>