Use `contentHorizontalAlignment`.You have to use `UIControlContentHorizontalAlignment.Left`.You need to use`horizontal` not `vertical`.


    btn.contentHorizontalAlignment = UIControlContentHorizontalAlignment.Left

Swift 3.x

    btn.contentHorizontalAlignment = .left



#Swift 4
Sample code

For my requirement I want alignment **left** **top**

    btnAddress.contentHorizontalAlignment = UIControlContentHorizontalAlignment.left
    btnAddress.contentVerticalAlignment = UIControlContentVerticalAlignment.top

#Swift 5 update:

    btnAddress.contentHorizontalAlignment = UIControl.ContentHorizontalAlignment.left
    btnAddress.contentVerticalAlignment = UIControl.ContentVerticalAlignment.top

        btnAddress.contentHorizontalAlignment = UIControl.ContentHorizontalAlignment.left
        btnAddress.contentVerticalAlignment = UIControl.ContentVerticalAlignment.top 



And now if you want the text to have some space from left add this

   ` btnAddress.titleEdgeInsets = UIEdgeInsets(top: 0, left: 8, bottom: 0, right: 0) `

like this with swift 4:
```
btnAddress.contentHorizontalAlignment = .center
```

**The Most Easiest and smallest Solution:**

    Button(&quot;0&quot;){}.frame(width:160.0,height:70.0,alignment:Alignment.leading)

**Check this by using this code for a button you will see that button text is now aligned to &quot;LEFT&quot;**

[![Button with text Alignment LEFT][1]][1]


  [1]: https://i.stack.imgur.com/g6x83.png

I have been trying to add some code to move my view up when the keyboard appears, however, I am having issues trying to translate the Objective-C examples into Swift. I have made some progress, but I am stuck on one particular line.

These are the two tutorials/questions I have been following:

https://stackoverflow.com/questions/24097831/how-to-move-content-of-uiviewcontroller-upwards-as-keypad-appears-using-swift
http://www.ioscreator.com/tutorials/move-view-when-keyboard-appears

Here is the code I currently have:

    override func viewWillAppear(animated: Bool) {
        NSNotificationCenter.defaultCenter().addObserver(self, selector: &quot;keyboardWillShow:&quot;, name: UIKeyboardWillShowNotification, object: nil)
        NSNotificationCenter.defaultCenter().addObserver(self, selector: &quot;keyboardWillHide:&quot;, name: UIKeyboardWillHideNotification, object: nil)
    }
    
    override func viewWillDisappear(animated: Bool) {
        NSNotificationCenter.defaultCenter().removeObserver(self)
    }
    
    func keyboardWillShow(notification: NSNotification) {
        var keyboardSize = notification.userInfo(valueForKey(UIKeyboardFrameBeginUserInfoKey))
        UIEdgeInsets(top: 0, left: 0, bottom: keyboardSize.height, right: 0)
        let frame = self.budgetEntryView.frame
        frame.origin.y = frame.origin.y - keyboardSize
        self.budgetEntryView.frame = frame
    }
    
    func keyboardWillHide(notification: NSNotification) {
        //
    }

At the moment, I am getting an error on this line:

    var keyboardSize = notification.userInfo(valueForKey(UIKeyboardFrameBeginUserInfoKey))

If someone could let me know what this line of code should be, I should manage to figure out the rest myself.

Getting keyboard size from userInfo in Swift

I need to set validation that user must fill / select all details in a page. If any fields are empty wanna show `Toast message to fill.` Now I need set validation for `RadioButton` in the `RadioGroup.` I tried this code but didn&#39;t work properly. Suggest me correct way. Thankyou.

    // get selected radio button from radioGroup
	int selectedId = gender.getCheckedRadioButtonId();
	// find the radiobutton by returned id
	selectedRadioButton = (RadioButton)findViewById(selectedId);
	// do what you want with radioButtonText (save it to database in your case)
	radioButtonText = selectedRadioButton.getText().toString();
			
	if(radioButtonText.matches(&quot;&quot;))
	{
		Toast.makeText(getApplicationContext(), &quot;Please select Gender&quot;, Toast.LENGTH_SHORT).show();
		Log.d(&quot;QAOD&quot;, &quot;Gender is Null&quot;);
	}
	else
	{
		Log.d(&quot;QAOD&quot;, &quot;Gender is Selected&quot;);
    }


How to check if a radiobutton is checked in a radiogroup in Android?

I am trying to set the title on a Button to left. But everything i tried is not working. 

With: 

    UILabelButton.titleLabel.textAlignment = .Left

Or:

    UILabelButton.contentVerticalAlignment = UIControlContentVerticalAlignment // There is no left

The button title is still centered. 

Is there another Property? 

How to change Button Title Alignment in Swift?

I am trying to set the title on a Button to left. But everything i tried is not working.
With:
<pre><code class="hljs language-ini">UILabelButton.titleLabel.textAlignment = .Left
</code></pre>
Or:
<pre><code class="hljs language-ini">UILabelButton.contentVerticalAlignment = UIControlContentVerticalAlignment // There is no left
</code></pre>
The button title is still centered.
Is there another Property?

How do you set the text for a `UILabel` to bold in Swift programmatically? 
My code so far:

        var label = UILabel(frame:theFrame)
        label.text = &quot;Foo&quot;


Setting UILabel text to bold

To distribute the app to our testers we use Xcode, which we do using the following process:

- Archive application
- Distribute for Ad-Hoc
- Choose provisioning profile
- Save the .ipa to a folder

But with **Xcode 6**, this workflow was changed a bit. I can still select the Ad-Hoc distribution option, but I cannot select the provisioning profile I want. This gives us no control over which signing certificate is used and the provisioning profile configuration (we use push notifications).

By default `iPhone distribution` signing identity is used and some kind of `XC Ad Hoc` provisioning profile is generated, which can be seen on image below:![Exporting IPA][1]
If you click the arrow near provisioning profile, it opens the folder with provisioning profiles.

So my question is:

**Is there any way in Xcode 6 to select the provisioning profile used with Ad Hoc distribution?**

Thanks!


  [1]: http://i.stack.imgur.com/4ssU0.png

Xcode 6 - How to pick signing certificate/provisioning profile for Ad-Hoc distribution?

I have a `UITableView` running under iOS 8 and I&#39;m using automatic cell heights from constraints in a storyboard.

One of my cells contains a single `UITextView` and I need it to contract and expand based on user input - tap to shrink/expand the text.

I&#39;m doing this by adding a runtime constraint to the text view and changing the constant on the constraint in response to user events:

    -(void)collapse:(BOOL)collapse; {
    
        _collapsed = collapse;
    
        if(collapse)
            [_collapsedtextHeightConstraint setConstant: kCollapsedHeight]; // 70.0
        else
            [_collapsedtextHeightConstraint setConstant: [self idealCellHeightToShowFullText]];
    
        [self setNeedsUpdateConstraints];
    
    }

Whenver I do this, I wrap it in `tableView` updates and call `[tableView setNeedsUpdateConstraints]`:

    [tableView beginUpdates];
    
    [_briefCell collapse:!_showFullBriefText];
    
    [tableView setNeedsUpdateConstraints];
    // I have also tried 
    // [self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];
    // with exactly the same results.
    
    [tableView endUpdates];

When I do this, my cell does expand (and animates whilst doing it) but I get a constraints warning:

    2014-07-31 13:29:51.792 OneFlatEarth[5505:730175] Unable to simultaneously satisfy constraints.
    
	Probably at least one of the constraints in the following list is one you don&#39;t want. Try this: (1) look at each constraint and try to figure out which you don&#39;t expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you&#39;re seeing NSAutoresizingMaskLayoutConstraints that you don&#39;t understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) 

    (
    
        &quot;&lt;NSLayoutConstraint:0x7f94dced2b60 V:[UITextView:0x7f94d9b2b200&#39;Brief text: Lorem Ipsum i...&#39;(388)]&gt;&quot;,
    
        &quot;&lt;NSLayoutConstraint:0x7f94dced2260 V:[UITextView:0x7f94d9b2b200&#39;Brief text: Lorem Ipsum i...&#39;]-(15)-|   (Names: &#39;|&#39;:UITableViewCellContentView:0x7f94de5773a0 )&gt;&quot;,
    
        &quot;&lt;NSLayoutConstraint:0x7f94dced2350 V:|-(6)-[UITextView:0x7f94d9b2b200&#39;Brief text: Lorem Ipsum i...&#39;]   (Names: &#39;|&#39;:UITableViewCellContentView:0x7f94de5773a0 )&gt;&quot;,
    
        &quot;&lt;NSLayoutConstraint:0x7f94dced6480 &#39;UIView-Encapsulated-Layout-Height&#39; V:[UITableViewCellContentView:0x7f94de5773a0(91)]&gt;&quot;
     )
    
    Will attempt to recover by breaking constraint 
    
    &lt;NSLayoutConstraint:0x7f94dced2b60 V:[UITextView:0x7f94d9b2b200&#39;Brief text: Lorem Ipsum i...&#39;(388)]&gt;

388 is my calculated height, the other constraints on the `UITextView` are mine from Xcode/IB.

The final one is bothering me - I&#39;m guessing that `UIView-Encapsulated-Layout-Height` is the calculated height of the cell when it is first rendered - (I set my `UITextView` height to be &gt;= 70.0) however it doesn&#39;t seem right that this derived constraint then overrules an updated user cnstraint.

Worse, although the layout code says it&#39;s trying to break my height constraint, it doesn&#39;t - it goes on to recalculate the cell height and everything draws as I would like.

So, what is `NSLayoutConstraint` `UIView-Encapsulated-Layout-Height` (I&#39;m guessing it is the calculated height for automatic cell sizing) and how should I go about forcing it to recalculate cleanly?

What is NSLayoutConstraint &quot;UIView-Encapsulated-Layout-Height&quot; and how should I go about forcing it to recalculate cleanly?

I&#39;m working on developing an app with Core Data. When I created an instance using:

    let entity = NSEntityDescription.entityForName(&quot;User&quot;, inManagedObjectContext: appDelegate.managedObjectContext)
    let user = User(entity: entity, insertIntoManagedObjectContext: appDelegate.managedObjectContext)

I got a warning in log:

    CoreData: warning: Unable to load class named &#39;User&#39; for entity &#39;User&#39;.  Class not found, using default NSManagedObject instead.

How could I fix it?

And another question, how can I define an instance method in NSManagedObject subclass?

Edit:

I have specified class of the entity as in the following screenshot:

![enter image description here][1]


  [1]: http://i.stack.imgur.com/pKQOm.png

Unable to find specific subclass of NSManagedObject

Is there an Swift equivalent of `NSLocalizedString(...)`?
In `Objective-C`, we usually use:

    NSString *string = NSLocalizedString(@&quot;key&quot;, @&quot;comment&quot;);

How can I achieve the same in Swift? I found a function:

    func NSLocalizedString(
        key: String,
        tableName: String? = default,
        bundle: NSBundle = default,
        value: String = default,
        #comment: String) -&gt; String

However, it is very long and not convenient at all.

What&#39;s NSLocalizedString equivalent in Swift?

Is there a way/software to give precise time needed to execute a block of code written in Swift, other than the following?

    let date_start = NSDate()

    // Code to be executed 

    println(&quot;\(-date_start.timeIntervalSinceNow)&quot;)

How to benchmark Swift code execution?

In Swift, I&#39;m trying to get a random float between 0 and 1 but I can&#39;t seem to get the type conversions to work.

    func randomCGFloat() -&gt; CGFloat {
        return CGFloat(arc4random()) / UINT32_MAX
    }

I&#39;m getting a &#39;CGFloat&#39; is not convertible to &#39;UInt8&#39; error

Running Xcode 6.


Swift random float between 0 and 1

I have a variable that initialized as:

    lazy var aClient:Clinet = {
        var _aClient = Clinet(ClinetSession.shared())
        _aClient.delegate = self
        return _aClient
    }()

The problem is, at some point, I need to reset this `aClient` variable so it can initialize again when the `ClinetSession.shared()` changed. But if I set the class to optional `Clinet?`, LLVM will give me an error when I try to set it to `nil`. If I just reset it somewhere in the code using `aClient = Clinet(ClinetSession.shared())`, it will end up with `EXEC_BAD_ACCESS`.

Is there a way that can use `lazy` and being allowed to reset itself?

Re-initialize a lazy initialized variable in Swift

I want to disable a button (`UIButton`) on iOS after it is clicked. I am new to developing for iOS but I think the equivalent code on objective - C is this:

    button.enabled = NO;

But I couldn&#39;t do that on swift.
 

Disable a Button

I have a generic control class which needs to set the completion of the button depending on the view controller.Due to that setLeftButtonActionWithClosure function needs to take as parameter a closure which should be set as action to an unbutton.How would it be possible in Swift since we need to pass the function name as String to action: parameter.


    
    func setLeftButtonActionWithClosure(completion: () -&gt; Void)
    {
        self.leftButton.addTarget(&lt;#target: AnyObject?#&gt;, action: &lt;#Selector#&gt;, forControlEvents: &lt;#UIControlEvents#&gt;)
    }
    


Adding a closure as target to a UIButton

I want to make a circular thumbs up and thumbs down button.

Should I use a ImageView or a Button as the super class?

How would I do this in Swift?

How to create a circular button in Swift?

Simple question here. I have a UIButton, currencySelector, and I want to programmatically change the text. Here&#39;s what I have:

    currencySelector.text = &quot;foobar&quot;

Xcode gives me the error &quot;Expected Declaration&quot;. What am I doing wrong, and how can I make the button&#39;s text change?

Changing text of UIButton programmatically swift

I can set the background color for a button but I can&#39;t work out how to set the background color for  `UIControlState.Highlighted`. Is it even possible? or do I need to go down the `setBackgroundImage` path?

 

Content Type	Original Author	Original Content on Stackoverflow
Question	derdida	View Question on Stackoverflow
Solution 1 - Ios	codester	View Answer on Stackoverflow
Solution 2 - Ios	Vivek	View Answer on Stackoverflow
Solution 3 - Ios	Noman Haroon	View Answer on Stackoverflow
Solution 4 - Ios	Dominik	View Answer on Stackoverflow
Solution 5 - Ios	Arshdeep Singh	View Answer on Stackoverflow

How to change Button Title Alignment in Swift?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Solution 3 - Ios

Solution 4 - Ios

Solution 5 - Ios

How to check if a radiobutton is checked in a radiogroup in Android?

Getting keyboard size from userInfo in Swift

Attributions