CODEWITHSUNDEEP
iphone
fayaz
fayaz

Reputation: 91

UILabel size to fit

I have a problem involving UILabel's sizeToFit method:

UILabel *questionLabel = [[UILabel alloc]initWithFrame:CGRectMake(0,0,320,320)];
questionLabel.lineBreakMode = UILineBreakModeWordWrap;
questionLabel.backgroundColor=[UIColor clearColor];
questionLabel.textAlignment=UITextAlignmentLeft;
questionLabel.textColor=[UIColor blackColor];
questionLabel.tag=1;
questionLabel.font=[UIFont systemFontOfSize:13];
questionLabel.numberOfLines = 0;
[questionLabel sizeToFit];
[myView addSubview:questionLabel];

I had written this code for displaying my data. But if I write: [questionLabel sizeToFit] my data does not display properly. If I remove [questionLabel sizeToFit] then it is displaying but it only shows half the data.

Thanks and Regards.

Upvotes: 6

Views: 25785

Answers (6)

Manish Agrawal
Manish Agrawal

Reputation: 11026

NSString *yourString = @"write your label text here";
CGSize s = [yourString sizeWithFont:[UIFont systemFontOfSize:12] constrainedToSize:CGSizeMake(width, MAXFLOAT) lineBreakMode:UILineBreakModeWordWrap];
questionLabel.frame = CGRectMake(0, 0, s.width, s.height);

Check if it helps.

Upvotes: 16

MSU_Bulldog
MSU_Bulldog

Reputation: 3519

I've found that when using sizeToFit with a UILabel, in InterfaceBuilder you need to change the Autoshrink property from 'Fixed Font Size' to 'Minimum Font Size'. I usually then set its value to 0.5 to be sure its working properly.

Upvotes: 0

Vishal
Vishal

Reputation: 21

I found that if AutoLayout is on then size to fit not work

Upvotes: 2

taus-iDeveloper
taus-iDeveloper

Reputation: 701

just make sure you increase the number of lines of the label. Instead of

questionLable.numberOfLines = 0; make use of

questionLable.numberOfLines = 4; As it will force the system to compute the smallest width possible for 4 lines.

You can achieve this via the Xib file too..

Upvotes: -1

grandouassou
grandouassou

Reputation: 2530

I think it's best to use taus-iDeveloper answer to compute the size of a label.
I just want to say that the reason your code is not working is because you didn't set text to your UILabel so sizeToFit returns CGSizeZero (so it doesn't appear on screen). You have to set text before using sizeToFit.

Upvotes: 2

taus-iDeveloper
taus-iDeveloper

Reputation: 701

i googled d above problem and came across some info that sizeToFit seems to be a bug and it has been reported to apple already. So as a workaround u can use this code:

NSString * myText = [NSString stringWithString:@"some text"];

CGFloat constrainedSize = 265.0f;

UIFont * myFont = [UIFont fontWithName:@"Arial" size:19]; 

CGSize textSize = [myText sizeWithFont: myFont
                       constrainedToSize:CGSizeMake(constrainedSize, CGFLOAT_MAX)
                           lineBreakMode:UILineBreakModeWordWrap];



CGRect labelFrame = CGRectMake (0, 0, textSize.width, textSize.height);

UILabel *label = [[UILabel alloc] initWithFrame:labelFrame];

[label setFont:myFont];

[label setText:myText];

Upvotes: 0

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