如何在 UITextView 中禁用复制、剪切、选择、全选 [英] How disable Copy, Cut, Select, Select All in UITextView

问题描述

UITextView 的复制、剪切、选择、全选功能在我按下屏幕时默认显示.但是，在我的项目中 UITextField 是只读的.我不需要这个功能.请告诉我如何禁用此功能.

The UITextView's Copy, Cut, Select, Select All functionality is shown by default when I press down on the screen. But, in my project the UITextField is only read only. I do not require this functionality. Please tell me how to disable this feature.

推荐答案

禁用粘贴板操作的最简单方法是创建一个覆盖 canPerformAction:withSender:UITextView 的子类code> 方法为您不想允许的操作返回 NO:

The easiest way to disable pasteboard operations is to create a subclass of UITextView that overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:

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

_{另见UIResponder}

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