James Ide fe7edf0860 [ListView] Defer measurement one frame after componentDidMount to fix error
Summary:
When `UIManager.measure` is called from `componentDidMount` it causes the error "Attempted to measure layout but offset or dimensions were NaN". Deferring the layout by one frame solves this problem. Layout measurement is already asynchronous anyway, so I believe adding the `requestAnimationFrame` call doesn't affect the program's correctness.

Fixes #1749

Closes https://github.com/facebook/react-native/pull/1750
Github Author: James Ide <ide@jameside.com>

Test Plan:
 Load UIExplorer and no longer get a redbox that says "Attempted to measure layout but offset or dimensions were NaN".
2015-06-26 10:26:07 -08:00
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