如何在NSAttributedString中删除和替换NSTextAttachment

Question

I have a mutable attributed string which I have added an image text attachment to.

NSMutableAttributedString* attributedString = [_textField.attributedText mutableCopy];

NSMutableDictionary* dict = [_homeFeedCommentsViewController.inputData.array_extraElements objectAtIndex:0];

NSNumber* indexObject = [NSNumber numberWithUnsignedLong:attributedString.length];

[dict setObject:indexObject forKey:@"LocationIndex"];

[attributedString insertAttributedString:imageAsAttributedString atIndex:attributedString.length];

How do i now get at that text attachment & replace it with a string at the location where the image is supposed to be located in the body of the text?

Answer 1

只需告诉文本存储，您更新了相应附件字符范围的属性：

textStorage.edited([.EditedAttributes], range: range, changeInLength: 0)