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2014/10/15 ¤U¤È 10:04:52
iphone Programming Glossary: canbecomefirstresponderHow to get UIMenuController work for a custom view? http://stackoverflow.com/questions/1146587/how-to-get-uimenucontroller-work-for-a-custom-view selector withSender id sender if selector @selector menuItemClicked selector @selector copy return YES return NO BOOL canBecomeFirstResponder return YES What has to be done in order for menu to work is that the firstResponder in our case our controller see line.. case our controller see line with self becomeFirstResponder has to be able to become first responder override method canBecomeFirstResponder cause default implementation returns NO as well as BOOL canPerformAction SEL selector withSender id sender which should..
http://stackoverflow.com/questions/1342674/motionbegan-not-working event in order to capture a shake event. The problem is that the function isn't even running even when I override canBecomeFirstResponder and set it to return YES. I have seen some other people's posts with this problem but I have not found an answer. Thanks.. implement this in a subclass of UIViewController . Make the UIViewController capable of becoming first responder BOOL canBecomeFirstResponder return YES Make the UIViewController become first responder in viewDidAppear . void viewDidAppear BOOL animated super viewDidAppear.. @interface ShakeView UIView @end Make ShakeView.m look like this #import ShakeView.h @implementation ShakeView BOOL canBecomeFirstResponder return YES void motionEnded UIEventSubtype motion withEvent UIEvent event if event.subtype UIEventSubtypeMotionShake NSLog..
How disable Copy, Cut, Select, Select All in UITextView http://stackoverflow.com/questions/1426731/how-disable-copy-cut-select-select-all-in-uitextview Please tell me how to disable this feature. iphone share improve this question Subclass UITextView and overwrite canBecomeFirstResponder BOOL canBecomeFirstResponder return NO Note that this only applies for non editable UITextViews Haven't tested it on editable.. this feature. iphone share improve this question Subclass UITextView and overwrite canBecomeFirstResponder BOOL canBecomeFirstResponder return NO Note that this only applies for non editable UITextViews Haven't tested it on editable ones... share improve..
UIViewController - can't become first responder http://stackoverflow.com/questions/1469876/uiviewcontroller-cant-become-first-responder NSLog @ is first resp i self isFirstResponder In the console I always see the line is first resp 0 I HAVE canBecomeFirstResponder method BOOL canBecomeFirstResponder return YES I don't even know where to look next.... iphone objective c uiviewcontroller.. self isFirstResponder In the console I always see the line is first resp 0 I HAVE canBecomeFirstResponder method BOOL canBecomeFirstResponder return YES I don't even know where to look next.... iphone objective c uiviewcontroller share improve this question ..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone handle shake if super respondsToSelector @selector motionEnded withEvent super motionEnded motion withEvent event BOOL canBecomeFirstResponder return YES @end You can easily transform any UIView even system views into a view that can get the shake event simply by..
http://stackoverflow.com/questions/1604716/customize-uimenucontroller that claims firstResponder for the menu to show. 5 make sure the view you're showing the menu for returns YES TRUE to canBecomeFirstResponder. For example if you try to make a UILabel a first responder it will return NO so you would have to subclass it. 6 that's..
UITextView disabling text selection [duplicate] http://stackoverflow.com/questions/1639485/uitextview-disabling-text-selection
Enable copy and paste on UITextField without making it editable http://stackoverflow.com/questions/1920541/enable-copy-and-paste-on-uitextfield-without-making-it-editable id sender if action @selector copy return YES else return super canPerformAction action withSender sender BOOL canBecomeFirstResponder return YES BOOL becomeFirstResponder if super becomeFirstResponder self.highlighted YES return YES return NO void copy id..
How does undo/redo basically work on iPhone OS? http://stackoverflow.com/questions/2449268/how-does-undo-redo-basically-work-on-iphone-os will also need to be able to become the first responder to handle gestures so the following method is needed BOOL canBecomeFirstResponder return YES The view controller will need to become the first responder when it appears onscreen. This can be done by calling..
UIMenuController not showing up http://stackoverflow.com/questions/3112925/uimenucontroller-not-showing-up You need to call becomeFirstResponder on the view or view controller. Your view or view controller needs to implement canBecomeFirstResponder returning YES . Optionally your view or view controller can implement canPerformAction action withSender sender to show..
How to enable iPod controls in the background to control non-iPod music in iOS 4? http://stackoverflow.com/questions/3196330/how-to-enable-ipod-controls-in-the-background-to-control-non-ipod-music-in-ios-4 animated UIApplication sharedApplication beginReceivingRemoteControlEvents self becomeFirstResponder BOOL canBecomeFirstResponder return YES I have to give credit to Grant. He has forked Matt Gallagher's AudioStreamer enabling all the ios4 improvements..
iOS 4: Remote controls for background audio http://stackoverflow.com/questions/3456435/ios-4-remote-controls-for-background-audio animated UIApplication sharedApplication endReceivingRemoteControlEvents self resignFirstResponder BOOL canBecomeFirstResponder return YES void remoteControlReceivedWithEvent UIEvent event switch event.subtype case UIEventSubtypeRemoteControlTogglePlayPause..
how can i detect the touch event of an UIImageView http://stackoverflow.com/questions/855095/how-can-i-detect-the-touch-event-of-an-uiimageview finer grain control over taps moves etc. this is the way to go. You'll also want to look at a few more things Override canBecomeFirstResponder and return YES to indicate that the view can become the focus of touch events the default is NO . Set the userInteractionEnabled..
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