In my application i have a button. After single and double clicking of the button will perform separate operation. How can i do that? Thanks
You may want to consider not using a DoubleTap. It is not a normal Android behavior.
When I first started programming on the Android, I kept running into things that were really "hard" to do on the android. Over time, I've found that many of them were difficult because they were a pretty bad idea.
If you are porting an iOS app, or emulating an iOS app's behavior, you may want to consider converting the UI over to Android style behaviors and use a longPress or other 'androidy' gestures.
Here is a similar question and answer:
Android: How to detect double-tap?