UICollectionView scrollToItemAtIndexPath不起作用

Question

[myCollectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForRow:2 inSection:0] atScrollPosition:UICollectionViewScrollPositionLeft animated:YES];

myCollectionView is not nil, and contains 3 items. I'm trying to scroll it programatically so that the 2nd item appears at the left edge of the collection view's frame.

The collection view does not move at all. I've also tried setContentOffset , which also has no affect. What would be preventing the collection view from scrolling?

EDIT: setContentOffset does actually work. I'd still be interested in knowing why scrollToItemAtIndexPath doesn't work though.

Answer 1

I found this question because I had the same exact troubles and I was searching for related topics. If you still need it, I can tell you setContentOffset shouldn't be needed. The way I fixed it was to manually assign the yourCollectionView.scrollEnabled boolean property as true to allow it to scroll programmatically.