Yu Huang 34907c3810 Fix List View _updateVisibleRows firing for all row component at view loading time issue ...

Summary:
Sometimes list view row components(even the ones unseen) have a frame but its x and y is 0 or uninitialized at view loading time, which will lead to _updateVisibleRows firing for all the row components incorrectly at loading time.
This is to make the code more defensive.

Reviewed By: sahrens

Differential Revision: D3308515

fbshipit-source-id: 0e30fdf10345629bfd9de3fe0ad641bb1903fe00

2016-05-16 18:28:21 -07:00

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ListView.js

Fix List View _updateVisibleRows firing for all row component at view loading time issue

2016-05-16 18:28:21 -07:00

ListViewDataSource.js

render empty section headers

2016-03-15 12:14:28 -07:00