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2014/10/15 ¤U¤È 10:15:59
iphone Programming Glossary: withsenderHow to get UIMenuController work for a custom view? http://stackoverflow.com/questions/1146587/how-to-get-uimenucontroller-work-for-a-custom-view clicked in menu void menuItemClicked id sender called when Item clicked in menu BOOL canPerformAction SEL selector withSender id sender if selector @selector menuItemClicked selector @selector copy return YES return NO BOOL canBecomeFirstResponder..
http://stackoverflow.com/questions/1604716/customize-uimenucontroller the responder chain for the view that will be first responder when you show the menu BOOL canPerformAction SEL action withSender id sender if action @selector onCustom1 return YES logic here for context menu show hide if action @selector onCustom2.. menu show hide if action @selector copy turn off copy if you like return NO return super canPerformAction action withSender sender 4 if the view you want to present the menu for doesn't already support showing a menu i.e. a UIWebView will show..
UITextView disabling text selection [duplicate] http://stackoverflow.com/questions/1639485/uitextview-disabling-text-selection text. I've tried canCancelContentTouches YES I've tried subclassing and overwriting BOOL canPerformAction SEL action withSender id sender But that gets called only After the selection BOOL touchesShouldCancelInContentView UIView view I don't see that..
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 after being tapped. CopyableLabel.m looks like this @implementation CopyableLabel BOOL canPerformAction SEL action withSender id sender if action @selector copy return YES else return super canPerformAction action withSender sender BOOL canBecomeFirstResponder.. SEL action withSender 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..
showing custom menu on selection in UIWebView in iphone http://stackoverflow.com/questions/2955354/showing-custom-menu-on-selection-in-uiwebview-in-iphone animated UIMenuController sharedMenuController setMenuItems nil Then I implemented the canPerformAction withSender method in the view controller. It helps to understand the concept of responders and responder chains to understand what.. the UIResponder documentation and the Event Handling Guide for iOS for the gory details . Now when canPerformAction withSender is called for the webview the sender parameter is set to nil. So I try to be a bit clever about how I write this function... I return the default value from UIViewController by calling the same method on super. BOOL canPerformAction SEL action withSender id sender if webView.superview nil urlTextField isFirstResponder if action @selector customAction1 action @selector customAction2..
UIMenuController not showing up http://stackoverflow.com/questions/3112925/uimenucontroller-not-showing-up
http://stackoverflow.com/questions/3537795/uimenucontroller-custom-items item1 But I wanted that object to be the only one to appear so I added this code BOOL canPerformAction SEL action withSender id sender BOOL answer NO if action @selector item1 answer YES return answer The problem is it still shows other## Heading..
http://stackoverflow.com/questions/3833184/iphone-ipad-context-menu Copy Paste Cut you'll include something like this in your canPerformAction method BOOL canPerformAction SEL action withSender id sender if action @selector someSelector return YES else return NO Creating a new menu item looks like this UIMenuItem..
UIWebView without Copy/Paste and selection rectangle when showing documents http://stackoverflow.com/questions/5515522/uiwebview-without-copy-paste-and-selection-rectangle-when-showing-documents a UIWebView object. To achieve this I created a UIWebView subclass and overrode the BOOL canPerformAction SEL action withSender id sender method #pragma mark UIResponderStandardEditActions BOOL canPerformAction SEL action withSender id sender if action.. SEL action withSender id sender method #pragma mark UIResponderStandardEditActions BOOL canPerformAction SEL action withSender id sender if action @selector copy action @selector paste action @selector cut return _copyCutAndPasteEnabled return super.. copy action @selector paste action @selector cut return _copyCutAndPasteEnabled return super canPerformAction action withSender sender Now the user no longer can make such operations however the UIWebView still shows the selection rectangle as you..
How to disable copy paste option from UITextField programmatically http://stackoverflow.com/questions/6701019/how-to-disable-copy-paste-option-from-uitextfield-programmatically many nice solutions How disable Copy Cut Select Select All in UITextView My favourite is to override canPerformAction withSender BOOL canPerformAction SEL action withSender id sender if action @selector paste return NO return super canPerformAction.. Select All in UITextView My favourite is to override canPerformAction withSender BOOL canPerformAction SEL action withSender id sender if action @selector paste return NO return super canPerformAction action withSender sender share improve this..
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