Search code examples
ioseventsmotion-detectionuiresponder

Passing shake gesture event to the app delegate

I put the motionBegan:withEvent: method in my view controller to see if it would work, but it's not being called. In viewWillAppear, I made the view controller the first responder, and return YES from canBecomeFirstResponder.

This view controller is in the master pane of a split view, so maybe the first responder was changed before I shook the device.

But my real question is how can I have all motion events passed to a handler in my app delegate? Do I really have to have motionBegan:withEvent: methods in all view controllers or delegates to all first responders? Isn't there a way to events like this to flow up the responder chain without inserting code into each UIResponder? It seems that there would be, but I haven't put my finger on how to do this.

Solution

  • the easiest way is override -sendEvent: in UIApplication then you will have controll over all events

    that you may use this class

    int retVal = UIApplicationMain(argc, argv, @"myApplication", @"myAppDelegate");

    another solution is make category or expand -viewWillAppear: more info