TKAlertController supports both UIAlertView (or UIActionSheet) and UIAlertController.

• TKAlertController is UIAlertController for under iOS8.
• In iOS8, It works as UIAlertController.
• And in previous OS version, It works as UIAlertView or UIAcitonSheet.
• You can use it in same way for any versions.
• It works in both Xcode 6beta and 5x.

• It does not support delegates about UITextField in UIAlertView.
• When UIAlertController show, ViewWillDisapper: is not called. (but in TKAlertController, it's called.)
• Rotate device when alert is presented, layout will broken. (freeze previous orientation)

1. First we create TKAlertController, as UIAlertController.

UIViewController *alertController =
[TKAlertController alertControllerWithTitle:@"title"
                                    message:@"message"
                             preferredStyle:TKAlertControllerStyleAlert];

TKAlertControllerStyleAlert is insted of UIAlertContollerStyleAlert.

and TKAlertControllerStyleActionSheet is instead of UIAlertControllerStyleActionSheet.

2. Second, we prepare TKAlertAction as UIAlertAction.

TKAlertAction *cancelAction =
     [TKAlertAction actionWithTitle:kButtonTitleCancel
                              style:TKAlertActionStyleCancel
                            handler:^(TKAlertAction *action) {
							// something to do.
                            }];

TKAlertAction *OKAction =
     [TKAlertAction actionWithTitle:kButtonTitleOK
                              style:TKAlertActionStyleDestructive
                            handler:^(TKAlertAction *action) {
							// something to do.
							}];

3. then, add action to controller.

[alertController addAction:cancelAction];
[alertController addAction:OKAction];

4. finally, call the method to show.

[self presentTKAlertController:alertController animated:YES completion:^{
	  // 
}];

presentTKAlertController:animated:completion: is in category in UIViewController.

MIT