I'm not looking for the easy solution (although that would be nice),
but I will be more than happy with someone pointing me in the right
direction so I can figure it out.
I can set the button colors, but I can't change them. Well, I can,
but not the way I would like to:
using this line of code in onCreate:
redButton.setBackgroundColor(Color.RED);
sure enough, the button starts as red.
Later, in another method in the same activity and thread, I try to
change the color once again:
redButton.setBackgroundColor(Color.BLACK);
next, I tell it to draw again:
redButton.invalidate();
finally I introduce a delay to let the UI update and allow the user to
see the color change:
long t = System.currentTimeMillis();
t = t + 100;
while ( System.currentTimeMillis() < t ) { ; } // crude, but I think
it's effective
I want the color of the button to return to the previous color
automatically, so I do this next:
redButton.setBackgroundColor(Color.RED);
redButton.invalidate();
The delay happens, but the color change does not. Or does it, and I
just don't see it (because it happens too fast)?
When I remove the final two lines of code that change the color back
to red, the button does turn black.
So, I think this may have to do with threads, but I'm not sure. Any
advice would be greatly appreciated.
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