[android-developers] when is onDraw called, how to force it?

I am working on a custom view which has text in it. I have a touch
even that opens a dialog to change the text but after the text is
updated in memory it still doesn't update in my view until I touch the
screen again. I am calling invalidate() in my function to update the
value of the text. To try to help clarify what is going on a little
better I put a log entry in the onDraw override saying that it has
been drawn and it seems completely random, I have 4 views in my
activity and when I touch one on the screen some of them are redrawn
and others are not. Can anyone offer any insight as to what is
happening?

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