UITextField如何禁用粘贴？ [重复]

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How to disable copy paste option from UITextField programmatically 14 answers
如何以编程方式从UITextField禁用复制粘贴选项14个答案

UITextField how to disable the paste?

UITextField如何禁用粘贴？

1 个解决方案

#1

overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:

覆盖canPerformAction：withSender：方法，为您不希望允许的操作返回NO：

- (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];
    }

In Above Code you need to write only for paste

在上面的代码中，您只需要编写粘贴

Another way

其他方式

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

Also check This link

另请查看此链接

EDITED

EDITED

In iOS 7, you can do such like,,

在iOS 7中，你可以这样做，

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

For Swift User

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
}

If you want to Open Date Picker or Picker view on TEXTFIELD click then below code work.

如果要在TEXTFIELD上打开日期选择器或选择器视图，请单击下面的代码工作。

Add below two methods in your class.

在您的课程中添加以下两种方法。

//Hide Menu View
override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {

    if YOURTEXTFIELD.isFirstResponder {
        DispatchQueue.main.async(execute: {
            (sender as? UIMenuController)?.setMenuVisible(false, animated: false)
        })
        return false
    }

    return super.canPerformAction(action, withSender: sender)
}

//MUST Implement

//必须实施

func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
            return false
}

#1