如何知道何时将文本粘贴到 UITextView 中 [英] how to know when text is pasted into UITextView

问题描述

将文本块粘贴到 UITextView 时会触发什么事件?粘贴文本时需要修改textView的frame.

What event is fired when a block of text is pasted into a UITextView? I need to modify the frame of my textView when the text is pasted in.

感谢阅读.

推荐答案

你的 UITextView 将调用它的 UITextViewDelegate 方法

Your UITextView will call its UITextViewDelegate method

 - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text

如果已设置委托.当在键盘上输入字符时，以及将文本粘贴到文本视图中时，都会调用此方法.粘贴的文本是replacementText 参数.

if a delegate has been set up. This gets called both when a character is typed on the keyboard, and when text is pasted into the text view. The text pasted in is the replacementText argument.

参见 http://developer.apple.com/library/ios/#documentation/uikit/reference/UITextViewDelegate_Protocol/Reference/UITextViewDelegate.html#//apple_ref/occ/intf/UITextViewDelegate

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