In this short tutorial, you will learn how to read from a file in Swift. The Swift code example below will cover the following: Find a Documents directory on the device in Swift, Read file content, let fileName = “myFileName.txt” var filePath = “” // Fine documents directory on device let dirs : [String] =…
Read More Read File Content Example in SwiftIn this tutorial, you will learn how to create a UITabBarController programmatically in Swift. UITabBarController is a container view controller in UIKit that manages a multi-selection interface, where the selection determines which child view controller to display. It’s typically used to organize 2-5 view controllers in a group. Here are some key points about UITabBarController: It…
Read More Create UITabBarController programmaticallyIn this short Swift code example, you will learn how to disable rotation of the UIViewController if device is rotated right or left. Note, that if your view is embedded into UINavigationController a different approach is needed. Check Swift Code Examples page to learn how to disable rotation of the view if it is embedded…
Read More Disable Rotation of UIViewControllerIn this short Swift code example, you will learn how to: Initialize an Array with 5 elements in Swift, Remove an element from an array at the specified index. Create an Array Let’s first create a new array with some elements in it. // Initialize Array with 5 elements var myArray = [1,2,3,4,5] // Print…
Read More Remove Element From an Array at Specified Index in SwiftIn this short Swift code example, you will learn how to: Initialize an Array with 5 elements in Swift How to remove all elements from an Array Initialize Array with 5 elements In the code example below, we will create a new array with 5 elements and we will print out all this array to…
Read More Remove All Elements From Array in SwiftIn this tutorial, you will learn how to use index along with element in Array loop. When iterating over an array, if you need the index for each element along with its value, you can use the enumerated() method to iterate over the array Create an Array First, let’s create an array with some elements.…
Read More Loop Over Array of Elements with IndexLets’ create an Array with three elements first. var myArray = [“Swift”, “Objective-C”, “PHP”] Now we can loop through all elements in Array for arrayElement in myArray { print(arrayElement) } Loop through an array of elements and print out element index as well as element value. for (index, element) in myArray.enumerated() { print(“Element index: \(index).…
Read More Loop Through Array Elements in SwiftIn this Swift code example, you will learn how to make the music playback slider smoothly move as the music continues to play so that the user is visually aware of how much of the music file has been already played and how much is left to play. Create AVPlayer and AVPlayerItem Create UIButton programmatically…
Read More AVPlayer. Add Periodic TimeObserver to Update Music Playback SliderLike other data types such as String, Double, Float, Boolean, Array, Dictionary, Struct, and Class, Closure is used broadly in Swift. Closure can store references to any constants and variables. In this short Swift code example, you will learn how to declare a simple Closure in Swift. Declare a Closure Call Closure Syntax Following is a generic…
Read More Declare a Closure in SwiftThe Swift code example below demonstrates a couple of ways how to check if an Array of elements is empty. To be a little more specific this code will demonstrate how to: Create an array with 5 elements, Remove all elements from Array, Check if Array is empty, Check if the number of elements in…
Read More Check if Array is Empty in SwiftWith this Swift code example, I would like to share with you how to sort an array of custom objects in Ascending and Descending order. Create a custom Swift class with the name “Friend”, Create an Array that can hold custom objects of type Friend, Sort Array of custom objects in Ascending and Descending order,…
Read More Sort Array of Custom Objects in SwiftThere are a few different ways of how to create an Array with default values in Swift. Below are a few Swift code examples of creating an Array. Each example creates an array with some initial values. Create an Array of Strings var appleProgrammingLanguages: [String] = [“Swift”, “Objective-C”] Thanks to Swift’s type inference, you don’t…
Read More Create an Array with Default Values in SwiftIn this tutorial, you will learn how to determine the current device model in Swift. To determine the current device model in Swift, you can use the utsname struct provided by the Darwin framework, which contains information about the system. This method involves getting the machine hardware description and then mapping it to the corresponding device…
Read More Determine Current Device Model in SwiftWith this Swift code example, I am going to share with you how to set the current window’s root view controller to a different one. The effect is as if you are replacing the current view controller with a new one. The new view controller will not be pushed into the navigation stack and it…
Read More Set Window’s Root View Controller in SwiftTo present a ViewController in a NavigationController you can wrap ViewController into a NavigationController as it is in the example below. Then present NavigationController which contains ViewController. // Register Nib let newViewController = CustomSignupViewController(nibName: “CustomSignupViewController”, bundle: nil) let navigationController = UINavigationController(rootViewController: newViewController) // Present View “Modally” self.present(navigationController, animated: true, completion: nil)
Read More Present ViewController in NavigationController