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Pinch to zoom in android

Pinch to zoom in android

Today we are going to learn a cool functionality pinch to zoom in android.

1. Firstly You need to show an ImageView in your layout file:

2. After that you need to create a class that’s responsible for Gesture Detection:

This class should only be used with MotionEvent’s reported via touch.

4. Initialize Imageview and ScaleGestureDetector:

5. Override onTouchEvent() as follows:

6. Yes! as a result of above all,  we are done, to experiment with the pinch-to-zoom functionality.

     

 

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