Dynamic cell size

Question

I have used

CGSize textSize = [text sizeWithFont:cellFont constrainedToSize:constraintSize lineBreakMode:NSLineBreakByWordWrapping];

and return newHeight;

to compute dynamic height of table cell. But in iOS 7 this is no more. So does iOS 7 has similar like this to compute dynamic height of cell or pickerview row height.

Updated Code:

NSString *text =str.text ;

                CGSize constraintSize = CGSizeMake(320.0f, 40.0f);  // Make changes in width as per your label requirement.

                CGRect textRect = [text boundingRectWithSize:constraintSize
                                     options:NSStringDrawingUsesLineFragmentOrigin
                                  attributes:@{NSFontAttributeName:[UIFont fontWithName:@"Avenir" size:17]}
                                     context:nil];
                CGSize size = textRect.size;
                NSLog(@"textSize :: %f",size.height);


                return  size.height;

I want to set font size of text i am setting for picker view in following method.

 - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
NSString *title;
title=@"The Grand Bhagvati S G Highway";
return title;
 }

possible duplicate of [deprecated in iOS 7 " sizeWithFont: constrainedToSize: lineBreakMode: " how can I replacement?](http://stackoverflow.com/questions/18903304/deprecated-in-ios-7-sizewithfont-constrainedtosize-linebreakmode-how-can) — Amar, Nov 26 '13 at 09:38

Dhaval Bhadania · Answer 1 · 2013-11-26T10:08:37.093

2

For IOS 7 calculate Size of text,You could try this:

      CGSize size = CGSizeMake(set_your_size);

     CGRect textRect = [text boundingRectWithSize:size
                             options:NSStringDrawingUsesLineFragmentOrigin
                          attributes:@{NSFontAttributeName:[UIFont fontNamesForFamilyName:@"Helvetica"}
                             context:nil];

     CGSize textSize = textRect.size;

EDIT:

For more detail check this:

https://developer.apple.com/library/ios/documentation/uikit/reference/NSAttributedString_UIKit_Additions/Reference/Reference.html#//apple_ref/doc/uid/TP40011688-CH1-SW7

ios-6-ios-7-transition

edited Nov 26 '13 at 10:08

answered Nov 26 '13 at 09:31

Dhaval Bhadania

3,091
1
19
34

dhaval and @null I am getting textSize 0.0000 in my log. – vivek bhoraniya Nov 26 '13 at 09:49
1

may your "str.text" you pass it "null".check it proper....anyway it working proper in my application.. – Dhaval Bhadania Nov 26 '13 at 09:57
I want to set font size which i am passing to method titleforrow of pickerview...take a look at my updated code. – vivek bhoraniya Nov 26 '13 at 10:12
for more Check this : http://teilweise.tumblr.com/post/293948288 and https://www.captechconsulting.com/blog/john-szumski/ios-7-tutorial-series-dynamic-type – Dhaval Bhadania Nov 26 '13 at 10:20

score 1 · Answer 2 · answered Nov 26 '13 at 09:40

You can use below:

CGRect textRect = [text boundingRectWithSize:constraintSize
                                     options:NSStringDrawingTruncatesLastVisibleLine|NSStringDrawingUsesLineFragmentOrigin
                                  attributes:@{NSFontAttributeName:cellFont}
                                     context:nil];

score 0 · Answer 3 · answered Nov 26 '13 at 10:01

0

Why not use SizeToFit? create a label with a frame of the biggest frame you can give to a label and then use sizeToFit

answered Nov 26 '13 at 10:01

Eli Braginskiy

2,795
5
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Dynamic cell size

3 Answers3