Pinch Zoom in and Zoom Out

问题

i am using visit How can I get zoom functionality for images? and got a project from visit https://github.com/MikeOrtiz/TouchImageView .

But when i am doing run it . i got a image and did not get any Pinch zoom .

Do i need to change in this code:-

  TouchImageView img = new TouchImageView(this);
  // ImageView img = new ImageView(this);
    Bitmap snoop = BitmapFactory.decodeResource(getResources(), R.drawable.snoopy);
    img.setImageBitmap(snoop);
    img.setMaxZoom(4f);
    setContentView(img);

please expert check it . Thank you for your kindly help.

Can any one help me By this project :- visit http://androidtrainningcenter.blogspot.in/2012/04/pinching-zoom-in-android-image-view-or.html i used in my project . but i am not understanding how can i use this class. i created my class which display image in imageview. and now i want to do pinchzoom

please check it expert . thank you

来源：https://stackoverflow.com/questions/13089031/pinch-zoom-in-and-zoom-out