ios - 从 UITextView 删除/移除 NSTextAttachment

Question

我有UITextView一个混合图像（as NSTextAttachment）和字符串。UITextView是不可选择的，所以我可以使用：

- (BOOL)textView:(UITextView *)textView shouldInteractWithTextAttachment:(NSTextAttachment *)textAttachment inRange:(NSRange)characterRange 

如何删除textAttachment方法中的？

Answer 1

您可以使用replaceCharactersInRange:withString:删除NSMutableAttributedString附件（您将范围作为UITextViewDelegate方法的参数）：

//Retrieve the attributed string
NSMutableAttributedString *mutableAttr = [[textView attributedText] mutableCopy];
//Remove the attachment
[mutableAttr replaceCharactersInRange:range withString:@""]; 
//Set the new attributed string
[textView setAttributedText:mutableAttr];