ScaleImageView

lastmod 2026-11-10created 2016-11-282 edits

ScaleImageView is a custom view library that adds two-finger pinch-to-zoom to Android's ImageView. It works by calculating changes in the distance between fingers from touch events and adjusting the image matrix. It is used in apps that need to let users zoom images freely, such as photo viewer screens.

Add pinch-in and pinch-out function to Android ImageView.

See also

• Android

Favorite site

• Github: scale-imageview-android project site