> From: Ben Kennedy <b...@zygoat.ca> > Subject: UITapGestureRecognizer and state/action w/rt numberOfTapsRequired > To: "Cocoa-Dev List" <cocoa-dev@lists.apple.com> > Date: Tuesday, 2011 November 8, 14:56 > From > http://developer.apple.com/library/ios/#documentation/uikit/reference/UITapGestureRecognizer_Class/Reference/Reference.html > : > >> Although taps are discrete gestures, they are discrete >> for each state of the gesture recognizer; thus the >> associated action message is sent when the gesture begins >> and is sent for each intermediate state until (and >> including) the ending state of the gesture. Code that >> handles tap gestures should therefore test for the state of >> the gesture, for example: >> >> - (void)handleTap:(UITapGestureRecognizer *)sender > { if (sender.state == > UIGestureRecognizerStateEnded) > { // > handling code } } > > This suggests that if I set numberOfTapsRequired = 2, I > should be able to get action for both a single tap (i.e. the > first of a pair of taps), as well a double-tap. > However, in iOS 5 this does not appear to be the case; my > action method is not called until the numberOfTapsRequired > has been satisfied. > > In order to respond to both a single and double tap, do I > thus need to attach two gesture recognizers?
Go another layer more primitive: http://www.oreillynet.com/pub/a/iphone/excerpts/iphone-programming-user/touch-patterns.html http://iphonedevelopertips.com/user-interface/detect-single-tap-in-uiscrollview.html http://developer.apple.com/library/ios/documentation/UIKit/Reference/UITouch_Class/Reference/Reference.html#//apple_ref/occ/instp/UITouch/tapCount _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
