Android custom controls imitate QQ to edit and select circular avatars

Android everyone has a lot of needs for users to upload avatars. Some are square, some are rounded rectangles, and some are circular. First of all, we need to make a user-defined control for processing pictures, and process the incoming pictures into a certain shape through the user selection area.

Some apps represent the selected content by drawing a rectangular area on the picture, while others select the picture by zooming in and out with two fingers and dragging the picture. Round head, it's better to change the picture

The circular area can be resized.

The image part of this custom view is divided into three parts: background image, translucent mask, and bright color area... Or paste the code directly

Usage in activity

The demand is to imitate QQ. I'm not very good at explaining. I'm playing.

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.