how to use visible and invisible for a button in android

Question

I want to make a button invisible, when i click another button then the invisible button will become visible and then perform onClick() actions on the visible butto

Answer 1

DONT USE -

donebutton.setVisibility(4);

Instead use the static constants for this:

donebutton.setVisibility(View.VISIBLE);

What exactly means

done.setVisibility(0);

Isn't is supposed to be

donebutton.setVisibility(View.GONE);