https://materialuiux.com/product/chat-ui-kit/​​​​​​​

The XML and JAVA files contains comments at each and every point for easy understanding.

Everything was made with a detail oriented style and followed by today’s web trends. Clean coded & Layers are well-organized, carefully named, and grouped. with full Java code

Change text, colours and graphics, add or place photos.
Customize every elements as much, or as little as you want.
Customise elements (easy to edit)

10+ screen

drawable files
full java code
100% free fonts
Perfect pixel (high quality design)
Very clean and cool UI

Free updates