The code snippet in this blog post demonstrates how to create a UIButton with a background image. To break it down in details, the following Swift code example will cover how to: Create UIButton and position UIButton within a view, Add UIButton as Subview, Add target action to UIButton to call a local function when the button…
Read More UIButton with Background Image in SwiftThis code example demonstrates how to write and read from NSUserDefaults in Swift. The code example below will cover how to: Create a global instance of NSUserDefaults Write and read the following data types from NSUserDefaults: Integer Boolean Double Objects like String, Date and Array of elements Using NSUserDefaults in Swift. Code Example. // Create a…
Read More NSUserDefaults example in SwiftIn this Swift code example, you will learn how to disable UIButton. The quickest way to disable the button in Swift is to simply set the button’s isEnabled property to false. For example button.isEnabled = false. Below is a complete code example in Swift that demonstrates how to: Create new UIButton, Position button within a view,…
Read More Disable UIButton Example in SwiftThe two Swift code snippets below are examples of how to compare if two Strings are equal. Check if Two Strings are Equal Using elementsEqual() Let’s assume the two Strings are constants and we need to compare them: let password = “HelloWorld” let repeatPassword = “HelloWorld” if ((password.elementsEqual(repeatPassword)) == true) { print(“Passwords are equal”) } else {…
Read More Compare Two Strings in SwiftTo check if the String value is empty I am going to use isEmpty that Swift provides. In the code example below I have two UITextFields which are called userNameTextField and userPasswordTextField. I first read the values that each UITextField contains and then check if these values are not empty. // Read values from text fields…
Read More Check If String is Empty in SwiftIn this blog post, you will learn how to read and write a string into a text file in Swift. In the code example below, we will first write a string value into a text file and then we will read the content of that text file to see if it contains the string we…
Read More Read and Write String Into a Text FileIn this short blog post, I am going to share with you a few code examples on how to work with dates in Swift. I will use DateComponents to add more days, months, or years to the current Date object in Swift. Adding Date let monthsToAdd = 2 let daysToAdd = 1 let yearsToAdd =…
Read More Add Days, Months or Years to Current Date in SwiftIn this blog post, you will learn how to create a UIBarButtonItem with Image in Swift. It is going to be a very short and simple Swift code example, that demonstrates how to: Create UIBarButtonItem programmatically, Create UIImage programmatically, Add image to UIBarButtonItem, Add target action to UIBarButtonItem to call a local function. import UIKit class…
Read More UIBarButtonItem with Image Example in SwiftIn Swift, you can load HTML files into your WKWebView from a file that is part of your App Bundle. Before you use the below code snippet, please make sure that the HTML file you want to display in WKWebView is added to your project. Load Local HTML File to a WKWebView let myUrl = myProjectBundle.url(forResource: “my-html-file”,…
Read More WKWebView. Load HTML File from App Bundle.In Swift, it is possible to inject a JavaScript code into a WKWebView and execute it from your app. The below code example demonstrates how to: Load HTML file from a local file, Load JavaScript code from a local file, Create WKUserScript object, Inject JavaScript into an HTML document. Load HTML File From App Bundle…
Read More Inject JavaScript into WKWebViewIn this short Swift code example, you will learn how to create and customize UITextView programmatically in Swift. The code example below will cover the following: Create UITextView programmatically, Position UITextView at a specific location within a view, Position UITextView at the center of the view, Change UITextView text color, Change UITextView background color, Set…
Read More Create and Customize UITextView Programmatically in SwiftIn this short Swift code example, you will learn how to create UITextView programmatically in Swift. Create UITextView programmatically Position UITextView at a specific location within a view Position UITextView at the center of the view Change UITextView text color Change UITextView background color let textView = UITextView(frame: CGRect(x: 20.0, y: 90.0, width: 250.0, height:…
Read More Create UITextView Programmatically in SwiftIn this short Swift code example, you will learn how to create and customize UITextView programmatically in Swift. Create UITextView programmatically Position UITextView at the center of the view Change UITextView background colour Create UITapGestureRecognizer Add UITapGestureRecognizer to main view Add UITextView as a subview Create a function to handle Tap away event import UIKit…
Read More Dismiss UITextView Keyboard When User Taps AwayIn this short Swift code example, you will learn how to check if file exists at specified path. Find a Documents directory on device Check if file exists at specified file path let fileNameToDelete = “myFileName.txt” var filePath = “” // Fine documents directory on device let dirs : [String] = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.allDomainsMask, true) if…
Read More Check if a File ExistIn this short tutorial, you will learn how to Delete a file from the Documents directory using Swift. The below code will cover: Find a Documents directory on the device, Check if a file at the specified path exists, Delete file, Catch an error if an error takes place. let fileNameToDelete = “myFileName.txt” var filePath…
Read More Delete File Example in Swift