Question

i am having this code to get the text between “.” for example i am having lots of text like .1 this is first.2 this is second.3 this is fourth etc etc.when i tap the first ext it displays the first text in log .the code is

- (void)textViewDidBeginEditing:(UITextView *)textView
{

    [NSTimer scheduledTimerWithTimeInterval:0.001 target:maintextview   selector:@selector(resignFirstResponder) userInfo:nil repeats:NO];
}

- (void)textViewDidEndEditing:(UITextView *)textView
{
    NSRange selectedRange = [textView selectedRange];
    NSString *backString = [maintextview.text substringToIndex:selectedRange.location];
    NSRange backRange = [backString rangeOfString:@"." options:NSBackwardsSearch];
    NSRange backRangee = [backString rangeOfString:@"." options:NSBackwardsSearch];
    int  myRangeLenght = backRangee.location - backRange.location;
    NSRange myStringRange = NSMakeRange (backRange.location, myRangeLenght);
    NSString *forwardString  = [maintextview.text substringFromIndex:backRange.location];
    NSLog(@"%@",[[forwardString componentsSeparatedByString:@"."] objectAtIndex:1]);

}

forwadString contains the tapped text,i just want to highlight this string or draw a color above this text using core graphics or something like that.is out possible?
thanks in advance

Answer 1

It’s impossible to ‘colour’ an NSString, a string is just a representation of characters, it holds no font, colour or style properties. Instead you need to colour the UI element that draws the text to the screen.

If forwardString is in a UILabel or UITextView you can colour the text inside these by setting the textColor property. For example if you had a UILabel called lbl you could set the colour by using:

lbl.textColor = [UIColor redColor];