UICollectionView仅重新加载第一个单元格

Question

I have a collectionView in my app and i want to reload only first cell of collection view. How can i reload only first cell of UICollectionView?

Answer 1

You can use reloadItemsAtIndexPaths: , method of UICollectionView to reload the first cell.

The index path of first cell is row:0 section:0. NSIndexPath provides a method to create one with a row and a section: indexPathForRow:inSection: .

So the way to reload the first cell is:

[youCollectionView reloadItemsAtIndexPaths:@[[NSIndexPath indexPathForRow:0 inSection:0]]];

Answer 2

The above is correct but not indexpath for row . its a indexpath for item

Answer 3

collectionView.reloadItems（at：[IndexPath（row：0，section：0）]）