I am parsing data through the web service. I want the flipping horizontally rather than vertically. Here is a tutorial where ViewFlipper is used but it is for static data.>
Just had a quick look for you because I was sure I've seen it around before, I found this on developer.android.com:
public void overridePendingTransition (int enterAnim, int exitAnim)
Since: API Level 5
Call immediately after one of the flavors of startActivity(Intent) or finish() to specify an explicit transition animation to perform next.
Parameters
enterAnim A resource ID of the animation resource to use for the incoming activity. Use 0 for no animation.
exitAnim A resource ID of the animation resource to use for the outgoing activity. Use 0 for no animation.
So you can add this extra parameter to your intent which will define how the activity you call will animate on entrance of new activity and exit of old activity.