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

当我按下屏幕时，默认显示 UITextView 的复制，剪切，选择，全选功能。但是，在我的项目中， UITextField 只是只读。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<$ c的子类$ c> UITextView 覆盖 canPerformAction：withSender：方法返回 NO 进行操作你不想允许：

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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