Android Studio Change background color multiple times with 1 button click : I am brand new to android studio and what i am trying to figure out is how to change the background color of my start up app.

The moment the app loads i see a button on the screen and when i click it goes to the color red.

What my employer wants is when you click the button it goes from Red to Green to Blue than back to red.

Can somebody help me figure this out please and thank you.