Cannot Refer To The Non-final Local Variable Button Defined In An Enclosing Scope, Random Method Error

I am getting an error in my project with eclipse: Cannot refer to the non-final local variable button defined in an enclosing scope This my class: import android.app.Activity; im

Solution 1:

Change your code to private void startRandomButton(final Button button). The compiler wants to make sure that a reference is not being re-assigned inside a method of an anonymous class.

From java-8, If your reference is effectively-final, then you don't even have to mark those arguments as final

Solution 2:

You have declared Button buttonblack; Globally in MainActivity..

you can pass buttonblack like this setButtonRandomPosition(buttonblack); without referring it as final.