[android-developers] Re: Pinch zoom functionality for custom view

Hi there,

I've implemented an open source pinch-zoom ImageView replacement called "GestureImageView" which does everything you should need.

You can either drop it straight in, or just use the source however you want.

https://github.com/jasonpolites/gesture-imageview

On Tuesday, September 6, 2011 11:52:26 PM UTC-7, Balaji Khadake wrote:

Hi,

I am working on pinch zoom functionality for my custom view. I have
found many post over many blogs but still not proper solution as that
of iPhone pinch zoom. I have developed my application with OS version
2.2. Can anybody help me out of this? I have referred post over here,
http://www.zdnet.com/blog/burnette/how-to-use-multi-touch-in-android-2-part-6-implementing-the-pinch-zoom-gesture/1847
still getting some unwanted behavior as on zoom in at first it zoom
outs and then zoom in and vice-versa. Is there any provision to
calculate pinch zoom magnitude in android api?

Thanks,
Balaji

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