UIKit Block-based components

A few UIKit components that use blocks instead of target/actions or delegates. The following components are included:

• UIActionSheet
• UIAlertView
• UIBarButtonItem

Installation

UIKit-Block-Based-Components is available through CocoaPods, to install it simply add the following line to your Podfile:

pod "UIKit-Block-Based-Components"

Usage

You can see the sample project in the Example folder.

OCActionSheet

Instantiate an action sheet with the following:

+ (id)actionSheetWithTitle:(NSString *)title;

Then use any of these methods to add buttons to the action sheet:

- (void)addButtonWithTitle:(NSString *)title
                    action:(void (^)(void))actionBlock;

- (void)addCancelButtonWithTitle:(NSString *)title
                          action:(void (^)(void))actionBlock;

- (void)addDestructiveButtonWithTitle:(NSString *)title
                             action:(void (^)(void))actionBlock;

Show it the usual way.

OCAlertView

The easier way is to instantiate an alert view with the following:

+ (id)alertViewWithTitle:(NSString *)title
                 message:(NSString*)message
             cancelTitle:(NSString *)cancelTitle
            cancelAction:(void(^)(void))cancelBlock
            confirmTitle:(NSString *)confirmTitle
           confirmAction:(void(^)(void))confirmBlock;

You could use this method to add a button to an alert view that requires more than 2 buttons:

- (void)addButtonWithTitle:(NSString *)title action:(void (^)(void))actionBlock;

Show it the usual way.

OCBarButtonItem

Instantiate a button with any of the following constructors:

+ (id)itemWithBarButtonSystemItem:(UIBarButtonSystemItem)systemItem
                      actionBlock:(void (^)(void))actionBlock;

+ (id)itemWithCustomView:(UIView *)customView
             actionBlock:(void (^)(void))actionBlock;

+ (id)itemWithImage:(UIImage *)image
              style:(UIBarButtonItemStyle)style
        actionBlock:(void (^)(void))actionBlock;

+ (id)itemWithImage:(UIImage *)image
landscapeImagePhone:(UIImage *)landscapeImagePhone
              style:(UIBarButtonItemStyle)style
        actionBlock:(void (^)(void))actionBlock;

+ (id)itemWithTitle:(NSString *)title
              style:(UIBarButtonItemStyle)style
        actionBlock:(void (^)(void))actionBlock;

You could use this method to set a block to a bar button item (not recommended though):

- (void)setActionBlock:(void (^)(void))actionBlock;

WARNING: Do not set the target and action after you set an action block, the action block won't be called otherwise.

Author

Olivier Collet @ocollet

License

UIKit-Block-Based-Components is available under the MIT license. See the LICENSE file for more info.