You can add UIRefreshControl
to UICollectionView
(or any UIScrollView
for that matter) by adding it to collection's subviews:
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
[refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
[self.collectionView addSubview:refreshControl];
This doesn't work when collection view layout has UICollectionViewScrollDirectionHorizontal
.
I tried overriding layoutSubviews
to put refresh control to the left, but it wouldn't track scrolling progress this way. Can I trick it into working with horizontal layouts?
you can achieve this by implementing the UIScrollViewDelegate method
I couldn't find any existing solutions so I extended
ODRefreshControl
with horizontal layout support:I needed solution in MonoTouch (C#) so I started by source-porting ODRefreshControl and then patched it to work with horizontal layout.
Full C# source code is here, it should be straightforward to port it back to Objective C.
All I did was add an utility function and some conditions here and there.