Dynamic scaling?

Question

Android

Good morning!
I am writing an application where I need to upload an image and zoom in or out while working (using the standard two-finger method). The image was inserted into the application using ImageView, scaling does not work. Tell me where to look? Where can I read about dynamic scaling.
Thank you!

Answer 1

It's called pinch to zoom
https://www.google.ru/search?q=pinch+to+zoom+andro...