YAPTR™: Yet another pull-to-refresh

Why?

• Other existing solutions were quite complex and often implement an infinite scroll thingy and a last refresh date which I don't need.
• These also often don't work correctly if you use a top contentInset on the scroll view which I need. Heck not even Apple's own █████████ respects that property (but then again, it's still β).

Features

• No need to pull and release. Just pull far enough and a refresh will trigger. You'll see much more of these soon.
• Adjust tint color of arrow.
• No support for last refresh date.
• Built on top of UIControl. When triggered it sends a UIControlEventValueChanged event to targets.
• View has a magical height of 44 points.
• iOS 5 and up (yeah, that's a feature).

Usage

Adding a refresh control to a scroll view:

PHFRefreshControl *refreshControl = [PHFRefreshControl new];
[refreshControl setTintColor:tintColor];
[refreshControl addTarget:dataController
                   action:@selector(reload)
         forControlEvents:UIControlEventValueChanged];
[scrollView setRefreshControl:refreshControl];

Triggering a refresh programmatically:

[[scrollView refreshControl] beginRefresh];
work();
[[scrollView refreshControl] endRefresh];

Small Print

License

PHFDelegateChain is released under the MIT license.

Author

Philipe Fatio (@fphilipe)

Credits

The arrow drawing code was adapted from Sam Vermette's SVPullToRefresh.