How to set UITextfield width dynamically?

Question

I have to make iPad application.

There are three questions textfields. I have to set width UITextField dynamically, text is coming from webservice. and I have to set UITextField width same as questions text..

when texts question size is small then UITextField size is small, when texts question size is large then UITextField size is large,

I have following code.....

txtQuestionOne.hidden=NO;
            txtQuestionTwo.hidden=NO;
            txtQuestionThree.hidden=NO;

            imgQueone.hidden=NO;
            imgQueTwo.hidden=NO;
            imgQueThree.hidden=NO;

            [txtQuestionOne setPlaceholder:[[appDelegate.questions objectAtIndex:0] objectForKey:@"question"]];

            appDelegate.FirstQues =[[appDelegate.questions objectAtIndex:0] objectForKey:@"question"];

            NSLog(@"current q1 %@", [[appDelegate.questions objectAtIndex:0] objectForKey:@"question"]);


            if ([[[appDelegate.questions objectAtIndex:0] objectForKey:@"permission"] isEqualToString:@"1"]) {

                ratingButton1.hidden=NO;

                ratingLabel1.hidden=NO;
            }


            [txtQuestionTwo setPlaceholder:[[appDelegate.questions objectAtIndex:1] objectForKey:@"question"]];

            appDelegate.SecondQues =[[appDelegate.questions objectAtIndex:1] objectForKey:@"question"];

            NSLog(@"current q2 %@", [[appDelegate.questions objectAtIndex:1] objectForKey:@"question"]);

            if ([[[appDelegate.questions objectAtIndex:1] objectForKey:@"permission"] isEqualToString:@"1"]) {

                ratingButton2.hidden=NO;

                ratingLabel2.hidden=NO;
            }


            [txtQuestionThree setPlaceholder:[[appDelegate.questions objectAtIndex:2] objectForKey:@"question"]];

            appDelegate.ThridQues =[[appDelegate.questions objectAtIndex:2] objectForKey:@"question"];

            NSLog(@"current q3 %@", [[appDelegate.questions objectAtIndex:2] objectForKey:@"question"]);

            if ([[[appDelegate.questions objectAtIndex:2] objectForKey:@"permission"] isEqualToString:@"1"]) {

                ratingButton3.hidden=NO;

                ratingLabel3.hidden=NO;
            }

Please help me i dont know what can i do?

Why don't you use `UILabel` instead ? – Maulik Aug 31 '12 at 06:56 — Maulik, Aug 31 '12 at 06:56

Ashwin Kumar · Accepted Answer · 2012-08-31T10:17:07.227

Use this to get size for a NSString of specified font style. And use the returned CGSize to set size of UI element can be label, textfield.

 (comments from apple documentation)
// Single line, no wrapping. Truncation based on the UILineBreakMode.
- (CGSize)sizeWithFont:(UIFont *)font; // Uses UILineBreakModeWordWrap
- (CGSize)sizeWithFont:(UIFont *)font forWidth:(CGFloat)width lineBreakMode:(UILineBreakMode)lineBreakMode;

// for multi lined
// Wrapping to fit horizontal and vertical size. Text will be wrapped and truncated using the UILineBreakMode. If the height is less than a line of text, it may return
// a vertical size that is bigger than the one passed in.
// If you size your text using the constrainedToSize: methods below, you should draw the text using the drawInRect: methods using the same line break mode for consistency

- (CGSize)sizeWithFont:(UIFont *)font constrainedToSize:(CGSize)size; // Uses UILineBreakModeWordWrap;
- (CGSize)sizeWithFont:(UIFont *)font constrainedToSize:(CGSize)size lineBreakMode:(UILineBreakMode)lineBreakMode;

Eg:

NSString *valueString = @"This is example";
CGSize newSize = [valueString sizeWithFont: [UIFont fontWithName: @"TrebuchetMS" size: 12] ];

// assign new size
CGRect textFrame = textbox. frame;
textFrame. size  = newSize;

increase width of textfield and need to give the font size of textfield. it is possible? — Virja Rahul, Aug 31 '12 at 09:44
Yes. Above takes UIFont variable.. which takes Font Name and size — Ashwin Kumar, Aug 31 '12 at 09:54
how can i use? please give me some example? i am new in iphone — Virja Rahul, Aug 31 '12 at 09:58
Vote for right answers as it would help others who will seek answers in future — Ashwin Kumar, Aug 31 '12 at 11:53

score 1 · Answer 2 · answered Aug 31 '12 at 06:46

1

did you try this

CGRect frame= yourTextField.frame;
frame.size.width=your_required_width;
yourTextField.frame=frame;

answered Aug 31 '12 at 06:46

Neo

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score 0 · Answer 3 · edited May 23 '17 at 12:33

0

Have a look at this post

It shows you the use of sizeWithFont which gives you a CGSize object from the size of your text. Then edit your textfields frame with the data of this CGSize object.

edited May 23 '17 at 12:33

Community

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1

answered Aug 31 '12 at 06:58

E. Lüders

1,495
1
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How to set UITextfield width dynamically?

3 Answers3