ios - Counting the number of lines in a UITextView, lines wrapped by frame size

Question

I wanted to know when a text is wrapped by the frame of the text view is there any delimiter with which we can identify whether the text is wrapped or not.

For instance if my text view has a width of 50 px and text is exceeding that, it wraps the text to next line.

I wanted to count the number of lines in my text view. Now " " and " " are not helping me.

My code is:

NSCharacterSet *aCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@"

"];
    NSArray *myArray = [textViewText componentsSeparatedByCharactersInSet:aCharacterSet];
    NSLog(@"%d",[myArray count]);

Answer 1

You need to use the lineHeight property, and font lineHeight:

Objective-C

int numLines = txtview.contentSize.height / txtview.font.lineHeight;

Swift

let numLines = (txtview.contentSize.height / txtview.font.lineHeight) as? Int

I am getting correct number of lines.