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This documentation is currently available in Portuguese. English and other languages are on the way.

UI — Building the interface

Images and graphics

Showing images with ImageView, freehand drawing on the Whiteboard and custom drawing with Paint.

How-to
Custom drawing

Override onPaint(Paint) and use the primitives — rect (GRect), text, line, image.

How-to
Images

Load and display images with ImageView, the scale modes (ImageSize) and background images.

How-to
Whiteboard

Free-hand drawing capture — signature, scribble — with pen color and thickness.