How do I set adaptive multiline UILabel text

Question

I have a UILabel named titleLabel in my storyboard nib set to its default height  I want it to programatically expand in height to fit it s content  Here is what I have tried so far      just setting content titleLabel text    You don t always know what you are getting with mass-market cloud computing services  But with SimpliCompute  the picture is clear  SimpliCompute gives you powerful virtual servers you can deploy using just your web browser  That   s enterprise grade technology you can deploy and control on-the-fly    titleLabel numberOfLines   0  titleLabel preferredMaxLayoutWidth   700  titleLabel lineBreakMode   NSLineBreakMode ByWordWrapping  titleLabel sizeToFit     None of this works for me in any combination  I always only see one line of text in my UILabel  What am I doing wrong   I absolutely need the text content to be variable

User · Answer

Programmatically  Swift  label lineBreakMode   NSLineBreakMode byWordWrapping label titleView numberOfLines   2

User · Answer

Programmatically in Swift 5 with Xcode 10 2  Building on top of  La masse s solution  but using autolayout to support rotation  Set anchors for the view s position  left  top  centerY  centerX  etc   You can also set the width anchor or set the frame width dynamically with the UIScreen extension provided  to support rotation   label   UILabel   label numberOfLines   0 label lineBreakMode    byWordWrapping self view addSubview label     SET AUTOLAYOUT ANCHORS label translatesAutoresizingMaskIntoConstraints   false label leftAnchor constraint equalTo  self view leftAnchor  constant  20  isActive   true label rightAnchor constraint equalTo  self view rightAnchor  constant  -20  isActive   true label topAnchor constraint equalTo  self view topAnchor  constant  20  isActive   true    OPTIONALLY  YOU CAN USE THIS INSTEAD OF THE WIDTH ANCHOR  OR LEFT RIGHT     label frame size   CGSize width  UIScreen absoluteWidth   - 40 0  height  0  label text    YOUR LONG TEXT GOES HERE  label sizeToFit     If setting frame width dynamically using UIScreen   extension UIScreen        OPTIONAL IF USING A DYNAMIC FRAME WIDTH     class func absoluteWidth   - gt  CGFloat           var width  CGFloat         if UIScreen main bounds width  gt  UIScreen main bounds height               width   self main bounds height    Landscape           else               width   self main bounds width    Portrait                   return width

User · Answer

I know it s a bit old but since I recently looked into it    let l   UILabel   l numberOfLines   0 l lineBreakMode    ByWordWrapping l text    BLAH BLAH BLAH BLAH BLAH  l frame size width   300 l sizeToFit     First set the numberOfLines property to 0 so that the device understands you don t care how many lines it needs  Then specify your favorite BreakMode Then the width needs to be set before sizeToFit   method  Then the label knows it must fit in the specified width

User · Answer

This is much better approach if you are looking for multiline dynamic text label which exactly takes the space based on its text    No sizeToFit  preferredMaxLayoutWidth used  Below is how it will work     Lets set up the project  Take a Single View application and in Storyboard Add a UILabel and a UIButton  Define constraints to UILabel as below snapshot     Set the Label properties as below image     Add the constraints to the UIButton  Make sure that vertical spacing of 100 is between UILabel and UIButton    Now set the priority of the trailing constraint of UILabel as 749    Now set the Horizontal Content Hugging and Horizontal Content Compression properties of UILabel as 750 and 748    Below is my controller class  You have to connect UILabel property and Button action from storyboard to viewcontroller class   import UIKit  class ViewController  UIViewController     IBOutlet weak var textLabel  UILabel  var count   0 let items     jackson is not any more in this world    Jonny jonny yes papa eating sugar no papa    Ab    What you do is what will happen to you despite of all measures taken to reverse the phenonmenon of the nature      IBAction func updateLabelText sender  UIButton        if count  gt  3           count   0           textLabel text   items count      count   count   1    override func viewDidLoad         super viewDidLoad          Do any additional setup after loading the view  typically from a nib        self textLabel sizeToFit         self textLabel preferredMaxLayoutWidth   500    override func didReceiveMemoryWarning         super didReceiveMemoryWarning          Dispose of any resources that can be recreated          Thats it  This will automatically resize the UILabel based on its content and also you can see the UIButton is also adjusted accordingly

User · Answer

I kind of got things working by adding auto layout constraints     But I am not happy with this  Took a lot of trial and error and couldn t understand why this worked   Also I had to add to use titleLabel numberOfLines   0 in my ViewController

User · Answer

With Graphical User Interface  GUI  in Xcode  you can do the following         Go to  Attribute Inspector  and set Lines value to 0  By default  it is set to 1    The Label text can be written in multi-line by hitting option   return               Now  go to  Size Inspector  and set the width  height  X  amp  Y position of the Label         That s all

User · Answer

It should work  Try this  var label UILabel   UILabel frame  CGRectMake 10      100  300  40    label textAlignment   NSTextAlignment Center  label numberOfLines   0  label font   UIFont systemFontOfSize 16 0   label text    First label nsecond line   self view addSubview label

[ios] How do I set adaptive multiline UILabel text?

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