Question

我尝试设置android:isolatedProcess="true"，但它无效

实际上我想一直显示永久通知

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)

.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), resourceIcon/*R.mipmap.ic_launcher*/))
                .setSmallIcon(R.drawable.ic_icon_flo_not)
                .setContentTitle(title)
                .setOngoing(onGoing)
                .setAutoCancel(autoCancelable)
                .setPriority(priority)
                .setContentText(message);
        Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        if (playSound)
            mBuilder.setSound(soundUri);
        if (remoteViews == null) {
            // Creates an explicit intent for an Activity in your app
            Intent resultIntent = new Intent(context, resultClass);
            resultIntent.setAction(action);

            // The stack builder object will contain an artificial back stack for the
            // started Activity.
            // This ensures that navigating backward from the Activity leads out of
            // your application to the Home screen.
            TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
            // Adds the back stack for the Intent (but not the Intent itself)
            stackBuilder.addParentStack(MainActivity.class);
            // Adds the Intent that starts the Activity to the top of the stack
            stackBuilder.addNextIntent(resultIntent);
            PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
            mBuilder.setContentIntent(resultPendingIntent);
        } else {
            mBuilder.setContent(remoteViews);
        }

Answer 1

覆盖服务中的onTaskRemoved（）并使用警报管理器再次启动服务。下面是代码。

    @Override
public void onTaskRemoved(Intent rootIntent) {
    super.onTaskRemoved(rootIntent);

    Log.d(TAG, "TASK REMOVED");

    PendingIntent service = PendingIntent.getService(
            getApplicationContext(),
            1001,
            new Intent(getApplicationContext(), MyService.class),
            PendingIntent.FLAG_ONE_SHOT);

    AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, 1000, service);
}

Answer 2

Service.START_STICKY服务是那些由于某种原因终止而重启的服务。你只需要从onStartCommand返回Service.START_STICKY

cal() { a=$(ip addr | grep "wlan0" | sed '1d' |awk '{print $2}' | sed -e 's/$.*$...$/\1/') echo $a b=10.98.35.96 if [ $b = $a ] then echo same #give command kill -9 $$ else echo notsame sleep 3 cal fi } cal

你只需要在上面做，没有必要做的事情

Answer 3

重新创建服务，不重新启动。如果您覆盖onCreate并执行Log.d或Toast，您将看到在活动和应用程序销毁后onCreate被调用。

因此，重新创建代码后使其保持运行的诀窍是使用onCreate方法编写代码，并将onStartCommand仅用于return START_STICKY。

需要注意的另一件事（由于我无法发表评论，因此我想用AlarmManager添加到Abdul Kawee答案中）：在api27上已解决：您要做的就是将super.onTaskRemoved(rootIntent)移到代码的最后一行。

我发现破坏性方法只能在覆盖方法的末尾调用super，否则某些资源在运行时将不再可用。

如何在省电后将重启服务重新启动粘贴服务

3 个答案: