4

I'm trying to implement a shake recognition that works throughout my application. To do this I'm adding the following code to my xxxAppDelegate.m:

-(BOOL)canBecomeFirstResponder {
    return YES;
}

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    if (event.type == UIEventSubtypeMotionShake) {
        NSLog(@"Shaken, not stirred.");
    }
}

But because in the .h file the delegate is defined as a 

@interface xxxAppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate>

I cannot use the 

[self becomeFirstResponder];

in the .m to make the app delegate the first responder. Therefore of course it doesn't work. What would be the best way to get it working?

FelixF
  • 83
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1 Answers1

3

What happens if you change the app delegate to a subclass of UIResponder?

Edit

You can read about the responder chain here in the documentation.

Alexsander Akers
  • 15,967
  • 12
  • 58
  • 83