我無法在android后台運行服務

Question

我在android后台運行服務，但遇到了一些問題。 在Android Oreo版本上，我嘗試使用android中的AlarmService和StartForegroundService()運行無休止的服務。
但我沒有結果。

我的測試設備是Xiaomi，YunOS，Huawei和android版本是9.0、4.4和YunOS 5.1
首先，當mainactivity運行並下一次關閉時，在onResume()和onPause()函數中，我使用Receiver通過startforegroundservice()和startservice()函數啟動了服務。
有一些具有以下內容的代碼：

- MainActivity

public void onResume() {
    mContext.stopService(new Intent(mContext, AppService.class));
}

public void onPause() {
    Intent intent = new Intent(mContext, RestartReceiver.class);
    intent.setAction("ACTION_REBOOT");
    mContext.sendBroadcast(intent);
}

-RestartReceiver

@Override
public void onReceive(Context context, Intent intent) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    {
        context.startForegroundService(new Intent(context, 
        AppForegroundService.class));
    } else {
        context.startService(new Intent(context, AppService.class));
    }
}

- AppForegroundService



     @Override
        public int onStartCommand(Intent intent, int flags, int startId) {
            ToastUtil.showToast(this, "AppForegroundService onStartCommand");
            Log.d(TAG, "onStartCommand");
            startForeground(startId, getStartNotification());
            startService(new Intent(this, AppService.class));
            stopSelf();
            return START_STICKY;
        }

- AppService

@Override
public void onDestroy() {
    RestartAlarm();
    Log.d(TAG, "onDestroy: service done");
    ToastUtil.showToast(this, "onDestroy: service done");
}
private void RestartAlarm()
{
    ToastUtil.showToast(this, "Start AlarmService");
    Intent intent = new Intent(this, RestartReceiver.class);
    intent.setAction("ACTION_RESTART");
    sendBroadcast(intent);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, 
    intent, 0);
    long firstTime = SystemClock.elapsedRealtime();
    Log.d(TAG, "RestartAlarm: " + firstTime);
    firstTime += 1000;

    AlarmManager alarmManager = (AlarmManager) 
    getSystemService(Context.ALARM_SERVICE);
    alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, 
    firstTime, 1000, pendingIntent);
}

- Manifest.xml

<service
    android:name=".service.AppService"
    android:enabled="true"
    android:exported="true"
    android:stopWithTask="false"/>
<service android:name=".service.AppForegroundService"
    android:enabled="true"
    android:exported="true"/>
<receiver
    android:enabled="true"
    android:exported="true"
    android:name=".service.AutoStartReceiver"
    android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
    <intent-filter>
        <action android:name="ACTION_REBOOT" />
        <action android:name="android.intent.action.BOOT_COMPLETED" 
        android:priority="999"/>
        </intent-filter>
</receiver>
<receiver
    android:name=".service.RestartReceiver"
    android:enabled="true">
    <intent-filter>
        <action android:name="ACTION_RESTART"/>
    </intent-filter>
</receiver>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" 
/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" 
/>
<uses-permission
    android:name="android.permission.READ_PHONE_STATE"
    android:required="false" />
<!-- 網絡 -->
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" 
/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" 
/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission
    android:name="android.permission.ACCESS_FINE_LOCATION"
    android:required="false" />
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<!-- added from 2.7.2 -->
<uses-permission
    android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"
    android:required="false" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission 
android:name="android.permission.INSTANT_APP_FOREGROUND_SERVICE" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<uses-permission 
android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

<uses-permission android:name="android.permission.SET_ACTIVITY_WATCHER" 
/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.VIBRATE" />

我究竟做錯了什么？

Answer 1

您無能為力，因為某些設備制造商不允許在應用程序關閉時在后台運行服務，這是操作系統殺死了該服務，但是，如果確實有必要在后台運行服務，則需要授予應用程序自啟動權限！