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fix scroll to bottom issue #168

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fix scroll to bottom issue #168

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8 changes: 5 additions & 3 deletions QBImagePicker/QBAssetsViewController.m
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Original file line number Diff line number Diff line change
Expand Up @@ -102,11 +102,13 @@ - (void)viewWillAppear:(BOOL)animated
[self updateDoneButtonState];
[self updateSelectionInfo];
[self.collectionView reloadData];

// Scroll to bottom
if (self.fetchResult.count > 0 && self.isMovingToParentViewController && !self.disableScrollToBottom) {
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:(self.fetchResult.count - 1) inSection:0];
[self.collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionTop animated:NO];
[self.collectionView performBatchUpdates:^{} completion: ^(BOOL finished){
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:(self.fetchResult.count - 1) inSection:0];
[self.collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionTop animated:NO];
}];
}
}

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