Swift Code Examples

 

Classes in Swift 

• Create a new Class
• Implement a Singleton Class
• Class Extension example in Swift
• Comparable protocol. Compare custom objects

Functions in Swift

• Declare a function in Swift
• Declare a function with a default parameter value
• Declare a function with variadic parameters in Swift
• Nested Functions in Swift: A Comprehensive Guide

Swift Closures

• Swift Closure: A Detailed Guide for Beginners,
• Closures With Multiple Parameters in Swift: A Beginner’s Guide.

Dictionaries in Swift 

• Create an Empty Dictionary
• Add Item to a Dictionary
• Loop Through a Dictionary
• Remove Item From Dictionary
• Remove All Items From a Dictionary

Arrays in Swift

• Create an Empty Array
• Create an Array with Default Values
• Check if Array is empty
• Loop Through Elements in Array
• Loop Over Array of Elements with Index
• Remove all elements from Array
• Remove element from an array at a specified index
• Sort Array of custom objects in Swift in Ascending and Descending order

Strings

• Case Insensitive Comparison of Strings in Swift
• Check if a String value is Empty
• Compare if two Strings are equal

Storing Data, Writing, and Reading in Swift

• NSUserDefaults – Writing and Reading values of different data types 
• Write String value into a File
• Read File content example in Swift
• Read and Write String values into a file 
• Check if a file at a specified location exists
• Delete File
• Load content of a property file in Swift
• Download file from a remote URL in Swift
• Load HTML File from App Bundle

Error Handling in Swift

• Catching an Error. Do Try Catch

Date and DateComponents

• Add days, months, or years to the current Date object in Swift,

Background Threads in Swift

• Perform a time-consuming task in a background thread

Buttons in Swift

• Create UIButton Programmatically
• UIButton with background image
• Create UIBarButtonItem Programmatically
• Create UIBarButtonItem with Image
• Disable UIButton example in Swift

Working UITextField in Swift

• Create UITextField programmatically in Swift
• Set UITextField keyboard return key as a Done button and dismiss the keyboard
• Check If UITextField Contains Value

UITextView

• Create UITextView programmatically in Swift
• Customize UITextView programmatically in Swift
• Dismiss keyboard when the user taps away UITextView

UISwitch in Swift

• Create UISwitch programmatically

UISlider

• Create UISlider programmatically

Working with UIView

• Create UIView in Swift Programmatically

UIStepper

• Create UIStepper in Swift Programmatically

UISegmentedControl

• Create UISegmentedControl Programmatically

UINavigationBar

• Customize UINavigationBar Appearance Programmatically via AppDelegate Swift File
• Customize UINavigationBar Appearance Programmatically in UIViewController

UIImageView & UIImage

• Create Circular UIImage programmatically
• Make UIImage Corners Rounded programmatically
• UIImageView and UIImage. Load image from a remote URL. 

UIWebView

• Create UIWebView programmatically and load remote web page using NSURL
  
• Create UIWebView Programmatically and Render HTML Code

WKWebView

• Load HTML file into UIWebView programmatically
• Inject JavaScript into WKWebView

UIDatePicker

• Create UIDatePicker programmatically,
• Inline UIDatePicker or DateCell Example in Swift

UIImagePickerController

• Creating UIImagePickerController programmatically

UIActivityIndicatorView

• Create UIActivityIndicatorView programmatically

UITabBarController

• Create UITabBarController programmatically

UIAlertController or Dialog messages in Swift

• Create UIAlertController with OK Button
• Create UIAlertController with OK and Cancel buttons
• UIAlertController with two buttons and UITextField 
• ActionSheet example in Swift

UITableView

• Create UITableView Programmatically in Swift
• Creating UIContextualAction in Swift

UICollectionView

• Create UICollectionView in Swift programmatically
• UICollectionView. Load list of images from remote server URL

Presenting ViewController(s)

• Navigate from AppDelegate.swift to a Different ViewController
• Present New ViewController 
• Set Window Root View Controller
• Present ViewController in NavigationController

Network Communication  

• Send HTTP GET Request. Example in Swift. 
• Send HTTP POST Request. Example in Swift and PHP
• Convert JSON String into NSDictionary in Swift

Screen size and device orientation 

• Determine main screen bounds, height, and width
• Determine device orientation
• Disable Rotation of UIViewController
• Disable Rotation of UIViewController which is embedded into UINavigationController

AVPlayer, AVPlayerItem, and AVPlayerLayer. Play Music. 

• AVPlayer. Play Music MP3 File From a Remote URL In Swift
• Add Playback Slider to AVPlayer. Example In Swift
• AVPlayer. Add Periodic Time Observer to Update Music Playback Slider

CoreLocation and MapKit

• Determine User’s Current Location Example in Swift
• Creating MKMapView in Swift programmatically
• Drop a Pin on a MapView at user’s current location
• MKAnnotationView –  Display Custom Pin Image and handle tap events

Touch ID Verification

• Touch ID and Face ID Verification code example in Swift

Regular Expressions

• Validating Email Address in Swift using Regular Expressions

Local and Remote Notifications

• UILocalNotification. Create, Schedule, and Receive Local Notifications in Swift

Determine Current iOS Device Model Name

• Determine current iOS device model name