Important note if your project doesn’t use ARC: you must add the -fobjc-arc compiler flag to ODRefreshControl.m in Target Settings > Build Phases > Compile Sources.

If you are using ODRefreshControl in your app, drop me a line so I can add your app here!

ODRefreshControl

ODRefreshControl is a “pull down to refresh” control for UIScrollView, like the one Apple introduced in iOS6, but available to anyone from iOS4 and up.

Installation

• Drag the ODRefreshControl/ODRefreshControl folder into your project.
• Add the QuartzCore framework to your project.
• #import "ODRefreshControl.h"

Usage

(see sample Xcode project in /Demo)

Adding a refresh control to your table view

ODRefreshControl *refreshControl = [[ODRefreshControl alloc] initInScrollView:self.scrollView];

To know when the refresh operation has started, add an action method to the UIControlEventValueChanged event of the control

[refreshControl addTarget:self action:@selector(dropViewDidBeginRefreshing:) forControlEvents:UIControlEventValueChanged];

If you’d like to programmatically start the refresh operation, use

[refreshControl beginRefreshing];

Remember to tell the control when the refresh operation has ended

[refreshControl endRefreshing];

Customization

The ODRefreshControl can be customized using the following properties:

@property (nonatomic, strong) UIColor *tintColor;
@property (nonatomic, assign) UIActivityIndicatorViewStyle activityIndicatorViewStyle;
@property (nonatomic, strong) UIColor *activityIndicatorViewColor; // iOS5 or more

Using the iOS 6 control when possible

This will take a UITableViewController and configure it to use a UIRefreshController if it’s available (running iOS 6) or an ODRefreshController if it isn’t. One or the other will be returned, which you can then customize if necessary.

id *refreshControl = [ODRefreshControl setupRefreshForTableViewController:self withRefreshTarget:self action:@selector(dropViewDidBeginRefreshing:)];

Credits

ODRefreshControl is brought to you by Fabio Ritrovato and contributors to the project. If you have feature suggestions or bug reports, feel free to help out by sending pull requests or by creating new issues. If you’re using ODRefreshControl in your project, attribution would be nice.