how to prevent service to run again if already running android

Question

On click of a button I want to start service using method startService(new Intent(currentActivity.this,MyService.class)) but if service is running I don\'t want to

Answer 1

A service will only run once, so you can call startService(Intent) multiple times.

You will receive an onStartCommand() in the service. So keep that in mind.

Source: Note that multiple calls to Context.startService() do not nest (though they do result in multiple corresponding calls to onStartCommand()), so no matter how many times it is started a service will be stopped once Context.stopService() or stopSelf() is called; however, services can use their stopSelf(int) method to ensure the service is not stopped until started intents have been processed.

At: http://developer.android.com/reference/android/app/Service.html on topic: Service Lifecycle