为什么过了一会儿我的程序被强行关闭了?

Why After a while my program is force closed?

我的应用程序也可以运行,但是 12 或 24 小时后就无法运行,因为该程序已被操作系统关闭。

如何防止操作系统关闭程序?

我的phone模特:Huawei G620S-L02

我是这样设置闹钟的:

AlarmManager alarmManager = (AlarmManager) this.mContext.getSystemService(Context.ALARM_SERVICE);        
Intent intentAlarm = new Intent(this.mContext, AlarmReciever.class);

        PendingIntent pendingIntent = PendingIntent.getBroadcast(this.mContext, 1, intentAlarm, PendingIntent.FLAG_UPDATE_CURRENT);

    long time = System.currentTimeMillis() + 25 * 60 * 60 * 1000
    alarmManager.set(AlarmManager.RTC_WAKEUP, time, pendingIntent);

这是AlarmReciever:

    public class AlarmReciever extends BroadcastReceiver
{    
    @Override
    public void onReceive(Context context, Intent intent)
    {                
        PendingIntent pi = PendingIntent.getActivity(context,0,intent,PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
                .setSmallIcon(R.mipmap.ic_launcher) // notification icon
                .setTicker(sticker)
                .setContentTitle("title") // title for notification
                .setContentText("text)   // message for notification
                .setAutoCancel(true)    // clear notification after click
                .setContentIntent(pi)
                .setLights(0xff00ff00, 300, 500)
                .setShowWhen(false);               

        NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(1, mBuilder.build());
    }
}

我的 Manifest 是:

<receiver
android:name=".AlarmReciever"
android:enabled="true"
android:exported="true">

<intent-filter>
    <action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE" />
</intent-filter>

在某些设备(如华为)中,您的应用必须在受保护的应用中进行检查:

转到设置 => 受保护的应用程序 => 检查你的应用程序