UITextField

UITextField displays editable text.

1. Open Xcode
2. Click File
3. Click New
4. Click Project...
5. Under iOS, click Application
6. Click Single View Application
7. Click Next
8. After Product Name, type your product name
9. After Organization Name, type your organization name or leave blank
10. After Organization Identifier, type your organization identifier
11. After Language, select Swift
12. After Devices, select Universal
13. Uncheck Use Core Data
14. Click Next
15. Select a folder
16. After Source Control, uncheck Create Git repository on
17. Click Create

1. Open ViewController.swift
2. Copy and paste code

1. Open Main.storyboard
2. Click View
3. Click Utilities
4. Click Show Object Library
5. Drag Text Field to View
6. Click View
7. Click Utilities
8. Click Show Connections Inspector
9. Under Sent Events, after Did End On Exit, drag + to View Controller
10. Click didEndOnExit:
11. Under Referencing Outlets, after New Referencing Outlet, drag + to View Controller
12. Click interfaceBuilderTextField

1. Click File
2. Click Add Files to "UITextField" ...
3. Select images
4. After Destination, check Copy items if needed
5. After Added folders, select Create groups
6. After Add to targets, check UITextField
7. Click Add

1. Click Product
2. Click Run

import UIKit

class ViewController: UIViewController
{
    @IBOutlet weak var interfaceBuilderTextField: UITextField!
    
    override func prefersStatusBarHidden() -> Bool
    {
        return true
    }
    override func viewDidLoad()
    {
        super.viewDidLoad()
        
        let image1 = UIImage(named: "HappyFace1")
        let image2 = UIImage(named: "HappyFace2")
        
        self.interfaceBuilderTextField.text = "Interface Builder"
        self.view.removeConstraints(self.view.constraints())

        let adjustFontSizeToFitWidthTextField = UITextField()
        adjustFontSizeToFitWidthTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        adjustFontSizeToFitWidthTextField.adjustsFontSizeToFitWidth = true
        adjustFontSizeToFitWidthTextField.font = UIFont(name: "Times New Roman", size: 24)
        adjustFontSizeToFitWidthTextField.minimumFontSize = 12
        adjustFontSizeToFitWidthTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        adjustFontSizeToFitWidthTextField.text = "Adjusts Font Size To Fit Width"
        self.view.addSubview(adjustFontSizeToFitWidthTextField)
        self.view.addConstraint(NSLayoutConstraint(item: adjustFontSizeToFitWidthTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: self.interfaceBuilderTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: adjustFontSizeToFitWidthTextField, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: self.view, attribute: NSLayoutAttribute.Width, multiplier: 1/4, constant: 0))

        let allowsEditingTextAttributesTextField = UITextField()
        allowsEditingTextAttributesTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        allowsEditingTextAttributesTextField.allowsEditingTextAttributes = true
        allowsEditingTextAttributesTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        allowsEditingTextAttributesTextField.text = "Allows Editing Text Attributes"
        self.view.addSubview(allowsEditingTextAttributesTextField)
        self.view.addConstraint(NSLayoutConstraint(item: allowsEditingTextAttributesTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: adjustFontSizeToFitWidthTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let attributedPlaceholderAttributedString = NSMutableAttributedString(string: "Attributed Placeholder")
        attributedPlaceholderAttributedString.addAttribute(NSBackgroundColorAttributeName, value: UIColor.redColor(), range: NSMakeRange(0, 10))
        attributedPlaceholderAttributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.whiteColor(), range: NSMakeRange(0, 10))
        attributedPlaceholderAttributedString.addAttribute(NSFontAttributeName, value: UIFont(name: "Times New Roman", size: 24)!, range: NSMakeRange(11, 11))
        
        let attributedPlaceholderTextField = UITextField()
        attributedPlaceholderTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        attributedPlaceholderTextField.attributedPlaceholder = attributedPlaceholderAttributedString
        attributedPlaceholderTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        self.view.addSubview(attributedPlaceholderTextField)
        self.view.addConstraint(NSLayoutConstraint(item: attributedPlaceholderTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: allowsEditingTextAttributesTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let attributedTextAttributedString = NSMutableAttributedString(string: "Attributed Text")
        attributedTextAttributedString.addAttribute(NSBackgroundColorAttributeName, value: UIColor.redColor(), range: NSMakeRange(0, 10))
        attributedTextAttributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.whiteColor(), range: NSMakeRange(0, 10))
        attributedTextAttributedString.addAttribute(NSFontAttributeName, value: UIFont(name: "Times New Roman", size: 24)!, range: NSMakeRange(11, 4))

        let attributedTextTextField = UITextField()
        attributedTextTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        attributedTextTextField.attributedText = attributedTextAttributedString
        attributedTextTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        self.view.addSubview(attributedTextTextField)
        self.view.addConstraint(NSLayoutConstraint(item: attributedTextTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: attributedPlaceholderTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: attributedTextTextField, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: self.view, attribute: NSLayoutAttribute.Width, multiplier: 1, constant: 0))

        let backgroundTextField = UITextField()
        backgroundTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        backgroundTextField.background = image1
        backgroundTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        backgroundTextField.text = "Background"
        self.view.addSubview(backgroundTextField)
        self.view.addConstraint(NSLayoutConstraint(item: backgroundTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: attributedTextTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let disabledBackgroundTextField = UITextField()
        disabledBackgroundTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        disabledBackgroundTextField.background = image1
        disabledBackgroundTextField.disabledBackground = image2
        disabledBackgroundTextField.enabled = false
        disabledBackgroundTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        disabledBackgroundTextField.text = "Disabled Background"
        self.view.addSubview(disabledBackgroundTextField)
        self.view.addConstraint(NSLayoutConstraint(item: disabledBackgroundTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: backgroundTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let borderStyleBezelTextField = UITextField()
        borderStyleBezelTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        borderStyleBezelTextField.borderStyle = UITextBorderStyle.Bezel
        borderStyleBezelTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        borderStyleBezelTextField.text = "Border Style Bezel"
        self.view.addSubview(borderStyleBezelTextField)
        self.view.addConstraint(NSLayoutConstraint(item: borderStyleBezelTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: disabledBackgroundTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let borderStyleLineTextField = UITextField()
        borderStyleLineTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        borderStyleLineTextField.borderStyle = UITextBorderStyle.Line
        borderStyleLineTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        borderStyleLineTextField.text = "Border Style Line"
        self.view.addSubview(borderStyleLineTextField)
        self.view.addConstraint(NSLayoutConstraint(item: borderStyleLineTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: borderStyleBezelTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let borderStyleNoneTextField = UITextField()
        borderStyleNoneTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        borderStyleNoneTextField.borderStyle = UITextBorderStyle.None
        borderStyleNoneTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        borderStyleNoneTextField.text = "Border Style None"
        self.view.addSubview(borderStyleNoneTextField)
        self.view.addConstraint(NSLayoutConstraint(item: borderStyleNoneTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: borderStyleLineTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let borderStyleRoundedRectTextField = UITextField()
        borderStyleRoundedRectTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        borderStyleRoundedRectTextField.borderStyle = UITextBorderStyle.RoundedRect
        borderStyleRoundedRectTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        borderStyleRoundedRectTextField.text = "Border Style Rounded Rect"
        self.view.addSubview(borderStyleRoundedRectTextField)
        self.view.addConstraint(NSLayoutConstraint(item: borderStyleRoundedRectTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: borderStyleNoneTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let clearButtonModeTextField = UITextField()
        clearButtonModeTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        clearButtonModeTextField.clearButtonMode = UITextFieldViewMode.Always
        clearButtonModeTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        clearButtonModeTextField.text = "Clear Button Mode"
        self.view.addSubview(clearButtonModeTextField)
        self.view.addConstraint(NSLayoutConstraint(item: clearButtonModeTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: borderStyleRoundedRectTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let clearsOnBeginEditingTextField = UITextField()
        clearsOnBeginEditingTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        clearsOnBeginEditingTextField.clearsOnBeginEditing = true
        clearsOnBeginEditingTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        clearsOnBeginEditingTextField.text = "Clears On Begin Editing"
        self.view.addSubview(clearsOnBeginEditingTextField)
        self.view.addConstraint(NSLayoutConstraint(item: clearsOnBeginEditingTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: clearButtonModeTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let clearsOnInsertionTextField = UITextField()
        clearsOnInsertionTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        clearsOnInsertionTextField.clearsOnInsertion = true
        clearsOnInsertionTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        clearsOnInsertionTextField.text = "Clears On Insertion"
        self.view.addSubview(clearsOnInsertionTextField)
        self.view.addConstraint(NSLayoutConstraint(item: clearsOnInsertionTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: clearsOnBeginEditingTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let defaultTextAttributesTextField = UITextField()
        defaultTextAttributesTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        defaultTextAttributesTextField.defaultTextAttributes = NSDictionary(objectsAndKeys: UIFont(name: "Times New Roman", size: 24)!, NSFontAttributeName, UIColor.whiteColor(), NSForegroundColorAttributeName, UIColor.redColor(), NSBackgroundColorAttributeName)
        defaultTextAttributesTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        defaultTextAttributesTextField.text = "Default Text Attributes"
        self.view.addSubview(defaultTextAttributesTextField)
        self.view.addConstraint(NSLayoutConstraint(item: defaultTextAttributesTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: clearsOnInsertionTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let fontTextField = UITextField()
        fontTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        fontTextField.font = UIFont(name: "Times New Roman", size: 24)
        fontTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        fontTextField.text = "Font"
        self.view.addSubview(fontTextField)
        self.view.addConstraint(NSLayoutConstraint(item: fontTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: defaultTextAttributesTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let inputAccessoryViewImageView = UIImageView(image: image1)

        let inputAccessoryViewTextField = UITextField()
        inputAccessoryViewTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        inputAccessoryViewTextField.inputAccessoryView = inputAccessoryViewImageView
        inputAccessoryViewTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        inputAccessoryViewTextField.text = "Input Accessory View"
        self.view.addSubview(inputAccessoryViewTextField)
        self.view.addConstraint(NSLayoutConstraint(item: inputAccessoryViewTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: fontTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let inputViewImageView = UIImageView(image: image1)
        
        let inputViewTextField = UITextField()
        inputViewTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        inputViewTextField.inputView = inputViewImageView
        inputViewTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        inputViewTextField.text = "Input View"
        self.view.addSubview(inputViewTextField)
        self.view.addConstraint(NSLayoutConstraint(item: inputViewTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: inputAccessoryViewTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let leftViewImageView = UIImageView(image: image1)
        
        let leftViewTextField = UITextField()
        leftViewTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        leftViewTextField.leftView = leftViewImageView
        leftViewTextField.leftViewMode = UITextFieldViewMode.Always
        leftViewTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        leftViewTextField.text = "Left View"
        self.view.addSubview(leftViewTextField)
        self.view.addConstraint(NSLayoutConstraint(item: leftViewTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: inputViewTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let rightViewImageView = UIImageView(image: image1)
        
        let rightViewTextField = UITextField()
        rightViewTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        rightViewTextField.rightView = rightViewImageView
        rightViewTextField.rightViewMode = UITextFieldViewMode.Always
        rightViewTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        rightViewTextField.text = "Right View"
        self.view.addSubview(rightViewTextField)
        self.view.addConstraint(NSLayoutConstraint(item: rightViewTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: leftViewTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let minimumFontSizeTextField = UITextField()
        minimumFontSizeTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        minimumFontSizeTextField.adjustsFontSizeToFitWidth = true
        minimumFontSizeTextField.font = UIFont(name: "Times New Roman", size: 24)
        minimumFontSizeTextField.minimumFontSize = 12
        minimumFontSizeTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        minimumFontSizeTextField.text = "Minimum Font Size"
        self.view.addSubview(minimumFontSizeTextField)
        self.view.addConstraint(NSLayoutConstraint(item: minimumFontSizeTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: rightViewTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: minimumFontSizeTextField, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: self.view, attribute: NSLayoutAttribute.Width, multiplier: 1/4, constant: 0))

        let placeholderTextField = UITextField()
        placeholderTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        placeholderTextField.placeholder = "Placeholder"
        placeholderTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        self.view.addSubview(placeholderTextField)
        self.view.addConstraint(NSLayoutConstraint(item: placeholderTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: minimumFontSizeTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let textTextField = UITextField()
        textTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        textTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        textTextField.text = "Text"
        self.view.addSubview(textTextField)
        self.view.addConstraint(NSLayoutConstraint(item: textTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: placeholderTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let textAlignmentTextField = UITextField()
        textAlignmentTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        textAlignmentTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        textAlignmentTextField.text = "Text Alignment"
        textAlignmentTextField.textAlignment = NSTextAlignment.Right
        self.view.addSubview(textAlignmentTextField)
        self.view.addConstraint(NSLayoutConstraint(item: textAlignmentTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: textTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
        self.view.addConstraint(NSLayoutConstraint(item: textAlignmentTextField, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: self.view, attribute: NSLayoutAttribute.Width, multiplier: 1, constant: 0))

        let textColorTextField = UITextField()
        textColorTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        textColorTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        textColorTextField.text = "Text Color"
        textColorTextField.textColor = UIColor.redColor()
        self.view.addSubview(textColorTextField)
        self.view.addConstraint(NSLayoutConstraint(item: textColorTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: textAlignmentTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))

        let typingAttributesTextField = UITextField()
        typingAttributesTextField.addTarget(self, action: "didEndOnExit:", forControlEvents: UIControlEvents.EditingDidEndOnExit)
        typingAttributesTextField.addTarget(self, action: "editingDidBegin:", forControlEvents: UIControlEvents.EditingDidBegin)
        typingAttributesTextField.defaultTextAttributes = NSDictionary(objectsAndKeys: UIFont(name: "Times New Roman", size: 24)!, NSFontAttributeName, UIColor.whiteColor(), NSForegroundColorAttributeName, UIColor.redColor(), NSBackgroundColorAttributeName)
        typingAttributesTextField.setTranslatesAutoresizingMaskIntoConstraints(false)
        typingAttributesTextField.text = "Typing Attributes"
        self.view.addSubview(typingAttributesTextField)
        self.view.addConstraint(NSLayoutConstraint(item: typingAttributesTextField, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: textColorTextField, attribute: NSLayoutAttribute.Bottom, multiplier: 1, constant: 0))
    }
    @IBAction func didEndOnExit(sender: UITextField!)
    {
        sender.resignFirstResponder()
    }
    func editingDidBegin(sender: UITextField!)
    {
        sender.typingAttributes = NSDictionary(objectsAndKeys: UIFont(name: "Times New Roman", size: 24)!, NSFontAttributeName, UIColor.whiteColor(), NSForegroundColorAttributeName, UIColor.greenColor(), NSBackgroundColorAttributeName)
    }
}

Apple UIKit