Question

scrollView = [[UIScrollView alloc] initWithFrame:
                        [[UIScreen mainScreen] applicationFrame]];

UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(25, 100, 200, 250)];
    textView .text =@"long text ";

I will be getting some data of unknown length. to be added to the UITextView . Sometimes the height of the content of the text might exceed the height of the UITextView which is 250 (shown above).

How can i increase the height of the UITextView based on the text i receive ? I would appreciate a sample code?

note: according to my code i am defining the width and height of the UITextView before adding the text to it.

Answer 1

You can use NSString‘s sizeWithFont:constrainedToSize:lineBreakMode: to get a CGSize struct telling you how big the text will be.

Usage:

CGSize size = [mystring sizeWithFont:[UIfont systemFontOfSize:15]
                   constrainedToSize:CGSizeMake(200, CGFLOAT_MAX)
                       lineBreakMode:UILineBreakModeWordWrap];
[myTextView setFrame:CGRectMake(25,100,200,size.height)];