UITextField如何禁用粘贴？

UITextField如何禁用粘贴？

Answer 1

重写canPerformAction:withSender:方法返回NO ，您不希望允许的操作：

 - (BOOL)canPerformAction:(SEL)action withSender:(id)sender { if (action == @selector(paste:)) return NO; if (action == @selector(select:)) return NO; if (action == @selector(selectAll:)) return NO; return [super canPerformAction:action withSender:sender]; } 

在上面的代码中，您只需要编写粘贴

其他方式

 -(BOOL)canPerformAction:(SEL)action withSender:(id)sender { UIMenuController *menuController = [UIMenuController sharedMenuController]; if (menuController) { [UIMenuController sharedMenuController].menuVisible = NO; } return NO; } 

另外检查这个链接

EDITED

在iOS 7中，你可以像这样做，

 - (BOOL)canPerformAction:(SEL)action withSender:(id)sender { [[NSOperationQueue mainQueue] addOperationWithBlock:^{ [[UIMenuController sharedMenuController] setMenuVisible:NO animated:NO]; }]; return [super canPerformAction:action withSender:sender]; } 

对于Swift用户

 override public func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool { if action == #selector(copy(_:)) || action == #selector(paste(_:)) { return false } return true }