android multitouch image zooming?

Question

I\'m displaying an image on full screen now i want to zoom it in or out. Any one guide on how I can implement multi touch image zooming?

I am using the 2.1 sdk versi

Answer 1

A recent post on the Android Developers Blog includes an example that does exactly what you ask. Unfortunately, it relies upon ScaleGestureDetecter which makes its first appearance in Froyo.