Animating while navigating between two activities

I want to show an animation when开发者_运维知识库 the user tries to navigate between one activity to the other .How can i achieve this?

Upon googling i found that we can use styles and set animation using themes for an activity. But when i do so i am unable to see any kind of animation happening. Is it doable?

http://groups.google.com/group/android-developers/browse_thread/thread/2ac12ea2bfc50908?pli=1

http://code.google.com/p/android/issues/detail?id=4409

Can any one help me plz..

If you aiming at android 2.0 and greater then you can use overridePendingTransition(). There is a good anddev tutorial for it.