How to clear custom smiley from UITextView

Question

I have a UITextView with combination of text and custom smileys (Attached using NSTextAttachment). And I have a custom UIButton action in which I need to clear the single character from textview's text. My questions are below.

1. How to find out whether it is text or NSTextAttachment at cursor location in UITextView.
2. After finding, how to clear that single character or NSTextAttachment from that string.

I tried a lot, but couldn't get it. Any ideas please..

Thanks

Answer 1

1. You can find the class of the object by using isKindOfClass method. This will tell you whether the object is of class NSTextAttachment or NSString .
2. I am assuming you are using NSMutableAttributedString , if so then just find out the range of the character and delete it using deleteCharactersInRange: method of NSMutableAttributedString .

Answer 2

Try this:

-(IBAction)yourButton:(id)sender {
       yourUITextView.text = [NSString stringWithFormat:@" Your text here, omit the smiley."];
}