How can I create custom controls in Android?

Question

I would like to create a custom control in my Android App. It will be a circular control with some smaller moveable circles that will indicate a specific value.

Is there a way to realize this?

Are there at least some nice tutorials where I can read how to create a custom control?

Answer 1

Have a look at the custom components section of the Android Dev Guide. The usual approach is to extend a View and override applicable methods.