测试了几种APP重启方式,还是这种方式比较靠谱;

public class App extends Application implements
        Thread.UncaughtExceptionHandler{
    Context context;
    private PendingIntent intent; //APP退出后,PendingIntent还存在,设置2秒之后,重新启动你的主Activity
    @Override
    public void onCreate() {
        super.onCreate();
        context = this;
        //设置Thread Exception Handler
        Thread.setDefaultUncaughtExceptionHandler(this);
        intent = PendingIntent.getActivity(this, 0,new Intent(this, MainActivity.class).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
    }

    @Override
    public void uncaughtException(Thread thread, Throwable ex) {
        Log.e("TAG","uncaughtException");
        AlarmManager mgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 2000, intent);
        System.exit(0);
    }
　记住在manifest注册你的appliction;
}

APP崩溃重启