I have an application which starts a Remote Service in its first launched activity. Then, in another activity, the user can set the configuration of the application. Please
You can use the Androids system AlarmManager like this:
Code to restart the app in your activity:
AlarmManager mgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000, PendingIntent.getActivity(this.getBaseContext(), 0, new Intent(getIntent()), getIntent().getFlags()));
System.exit(2);
An example can be looked up here
UPDATE
As @CommonsWare pointed out, its a bad way to design your app, when you have to restart it (bad practice). If you really want to do it, you can try setting alarmmanager to start your app in a second after you killed your own process:
AlarmManager mgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 1000, PendingIntent.getActivity(this.getBaseContext(), 0, new Intent(getIntent()), getIntent().getFlags()));
android.os.Process.killProcess(android.os.Process.myPid());