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2014/10/15 ¤U¤È 10:09:57
iphone Programming Glossary: handledoubletapWhat's the trick to pass an event to the next responder in the responder chain? http://stackoverflow.com/questions/1207287/whats-the-trick-to-pass-an-event-to-the-next-responder-in-the-responder-chain NSUInteger numTaps touch tapCount if numTaps 2 self.nextResponder touchesBegan touches withEvent event else self handleDoubleTap touch I have a View Controller. Like you know View Controllers inherit from UIResponder. That View Controller creates a..
UIImageView on iphone 4 image is half way out of view http://stackoverflow.com/questions/20725196/uiimageview-on-iphone-4-image-is-half-way-out-of-view self UITapGestureRecognizer doubleTap UITapGestureRecognizer alloc initWithTarget self action @selector handleDoubleTap doubleTap setNumberOfTapsRequired 2 self.scrollView addGestureRecognizer doubleTap self.scrollView.minimumZoomScale 1 self.scrollView.maximumZoomScale..
iphone - double tap fail safe way http://stackoverflow.com/questions/2637229/iphone-double-tap-fail-safe-way handleSingleTap withObject nil afterDelay 0.35 after 0.35s we call it a single tap else if touch tapCount 2 self handleDoubleTap Second intercept the message if a new touch occurs during timeout void touchesBegan NSSet touches withEvent UIEvent event..
UITapGestureRecognizer on a UIButton http://stackoverflow.com/questions/4105293/uitapgesturerecognizer-on-a-uibutton the IBActions EDIT UITapGestureRecognizer doubleTap UITapGestureRecognizer alloc initWithTarget self action @selector handleDoubleTap doubleTap setNumberOfTapsRequired 2 A1 addGestureRecognizer doubleTap A2 addGestureRecognizer doubleTap B1 addGestureRecognizer.. and A2 don't. Create a separate recognizer for each button. But all three recognizers can call the same action method handleDoubleTap . However when you try to do a single tap on a button there will be a slight delay as it waits to see if it's the beginning..
filtering single and double taps http://stackoverflow.com/questions/6587453/filtering-single-and-double-taps UITapGestureRecognizer doubleTapGestureRecognizer UITapGestureRecognizer alloc initWithTarget self action @selector handleDoubleTap doubleTapGestureRecognizer.numberOfTapsRequired 2 tapGestureRecognizer.delegate self self addGestureRecognizer doubleTapGestureRecognizer..
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