Justify Text in UILabel iOS - iphone

Question

I am having a problem that in iOS I am using UILabel to display 2,3 line text, I want to align text as justified but I am not finding any option to do so. Any suggestions how to make justify text in label?
i put these line to make start it from top
CGSize maximumSize = CGSizeMake(300, 9999);
NSString *textString = someString;
UIFont *textFont = [UIFont fontWithName:#"Futura" size:14];
CGSize textStringSize = [textString sizeWithFont:textFont
constrainedToSize:maximumSize
lineBreakMode:text.lineBreakMode];
CGRect textFrame = CGRectMake(10, 110, 300, textStringSize.height);
text.frame = textFrame;
so any trick like this to make it justfiy
Thanks

Answer 1

There is now a convenient way to justify text since iOS6. You can create an instance of NSAttributedString, set appropriate properties and assign this attributed string to a text representing view such as UILabel, UITextView, etc. It's easy as this:
Create an instance of NSMutableParagraphStyle and set its properties.
NSMutableParagraphStyle *paragraphStyles = [[NSMutableParagraphStyle alloc] init];
paragraphStyles.alignment = NSTextAlignmentJustified; //justified text
paragraphStyles.firstLineHeadIndent = 10.0; //must have a value to make it work
Create NSDictionary for text attributes and create attributed string.
NSDictionary *attributes = #{NSParagraphStyleAttributeName: paragraphStyles};
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString: string attributes: attributes];
Set attributed string to a label.
existingLabel.attributedText = attributedString;

Answer 2

Can't be done I'm afraid - well not with UILabel.
You can use the UIWebView or a 3rd party library such as OHAttributedLabel
Happy Coding :)
Update:
This answer has been obsolete since iOS6. Please refer to Tankista's answer.

Answer 3

As mentionned by #martin, my class OHAttributedLabel can make this very easily.
(You will find it on my github and also find plenty of references to it on SO as well)

Answer 4

It can be done easily, but you need to use Core Text.
subclass a UIView, add an NSString property, create an NSAttributedString and pass kCTJustifiedTextAlignment value for the kCTParagraphStyleSpecifierAlignment key, then draw the NSAttributedString using Quartz or CoreText in your drawrect method.
edit: kCTParagraphStyleSpecifierAlignment key kCTJustifiedTextAlignment value should be used to create a CTParagraphStyleRef struct and passed in as a value for kCTParagraphStyleAttributeName key when creating the NSAttributedString.

Answer 5

SWIFT 4.x
version of approved answer:
Create an instance of NSMutableParagraphStyle and set its properties.
let justifiedParagraphStyles: NSMutableParagraphStyle = NSMutableParagraphStyle.init()
justifiedParagraphStyles.alignment = .justified //justified text
justifiedParagraphStyles.firstLineHeadIndent = 10.0 //must have a value to make it work
Create NSDictionary for text attributes and create attributed string.
let attributes = [NSAttributedStringKey.paragraphStyle: justifiedParagraphStyles]
let attributedString = NSAttributedString.init(string: string, attributes: attributes)
Set attributed string to a label.
existingLabel.attributedText = attributedString