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Mark Verlingieri
3346ac7f96
Summary: The initialScrollIndex in VirtualizedList contains a performance optimization to start rendering the list at the index provided. ContentOffset does not contain this optimization and there is currently no way to specify the first item in the list to start rendering without contentOffset being ignored. This change makes it so that if both initialScrollIndex and ContentOffset are provided, the list will start rendering at the initialScrollIndex but ContentOffset will still be used to set the scroll position. initialScrollIndex functionality will remain the same if ContentOffset is not provided. Changelog: [Changed] VirtualizedList will use contentOffset for scroll position instead of initialScrollIndex if both are provided Reviewed By: sahrens Differential Revision: D21980172 fbshipit-source-id: 36d2d2bc360845ef02329d2b95a2cf14b91c2b0b