Android: Re-invoke application if task manager kill

Question

Application thread get close if its killed by task manager. Need to re-invoke application as though its killed by other application or task manager. Any idea?

Answer 1

While look at Google IO official product source code I have found the following

((AlarmManager) context.getSystemService(ALARM_SERVICE))
            .set(
                    AlarmManager.RTC,
                    System.currentTimeMillis() + jitterMillis,
                    PendingIntent.getBroadcast(
                            context,
                            0,
                            new Intent(context, TriggerSyncReceiver.class),
                            PendingIntent.FLAG_CANCEL_CURRENT));

URL for code

You can start a sticky service and register an alarm manager that will check again and again that is your application is alive if not then it will run it.

You can also make a receiver and register it for then you can start your service from your receiver. I think there should be some broadcast message when OS or kills some service/application.

Just to give you a rough idea I have done this and its working 1) register receiver Receiver Code:

@Override public void onReceive(Context context, Intent intent) {

    try {
        this.mContext = context;
        startService(intent.getAction());

        uploadOnWifiConnected(intent);

    } catch (Exception ex) {
        Logger.logException(ex);
        Console.showToastDelegate(mContext, R.string.msg_service_starup_failure, Toast.LENGTH_LONG);
    }
}

private void startService(final String action) {
    if (action.equalsIgnoreCase(ACTION_BOOT)) {

        Util.startServiceSpawnProcessSingelton(mContext, mConnection);

    } else if (action.equalsIgnoreCase(ACTION_SHUTDOWN)) {

    }
}

Service Code:

@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    Logger.logInfo("Service Started onStartCommand");
    return Service.START_STICKY;
}

I prefer doing nothing in onStartCommand because it will get called each time you start service but onCreate is only called 1st time service is started, so I do most of the code in onCreate, that way I don't really care about weather service is already running or not.