What's Best Way To Wait For View To Layout

I'm currently playing with this android stuff, doing some image manipulation using image view and matrices for a simple comic book viewer i'm writing. I want to be able to scale the image that i send to the image view to fit the size of the view as it is presented on the screen but when i call imageview. Getheight() it returns 0.

I know i have to wait for it to be laid out before i can get what this value should be but i don't know what the correct way to go about this is. I tried a basic loop that checked the height returned and kept checking until it returned something that wasn't 0 but this simply gave an infinite series of 0's returned.

What's the best way of doing this?

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