iOS UITextField 禁止粘贴

方法1:重写 canPerformAction:withSender: 方法并返回 NO 即可。

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender  
    {  
        if (action == @selector(paste:))//禁止粘贴  
            return NO;  
        if (action == @selector(select:))// 禁止选择     
            return NO;     
        if (action == @selector(selectAll:))// 禁止全选     
            return NO;    
        return [super canPerformAction:action withSender:sender];  
    }  

方法2:

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

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