Question

In my app, I am using the IntentService class to start another activity in the background. But the issue I got is that suppose from the IntentService class I start my activity, which opens my activity, after that I don’t close my activity. Then I notice that when IntentService class again wants to start my same activity it is not called as the same activity is not close.

So, my question is: How can I start the same activity again and again whether it is open or close from the IntentService class?

Code in IntentService class

public class AlarmService extends IntentService
{       

    public void onCreate() {
        super.onCreate();
    }

    public AlarmService() {
        super("MyAlarmService");
    }
    
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent, startId, startId);
        return START_STICKY;
    }

    @Override
    protected void onHandleIntent(Intent intent) {          
        startActivity(new Intent(this, 
            AlarmDialogActivity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
    }       
}

Answer 1

use launchMode tag in manifest file

  <activity
        android:name=".ActivityName"

        android:launchMode="singleTask"  />

it will not create a different instance of activity if already available..

see this link launchMode for better understanding