how to switch android app theme when an android app run

Question

When my android app run, there is a button or something which let customers to select a color to show on primarycolordack, colorprimary and so on. in others words, i want to change app theme. how to do that?

Answer 1

Lucky for you android mead it simple, there is a method for that inside the activity class:

setTheme(android.R.style.MyTheme);

You'll have to call this method inside on create before the super command like this:

public void onCreate(Bundle savedInstanceState) {
    setTheme(android.R.style.MyTheme);
    super.onCreate(savedInstanceState)
}