In Swift 5, defer is a control flow statement that lets you schedule a block of code to be executed just before the current scope is exited. It’s often used to handle cleanup tasks such as releasing resources, closing files, or unlocking locks. Here’s an example of how to use defer effectively in Swift 5: … Read more
To inject JavaScript code into a WKWebView in Swift, you can use the evaluateJavaScript(_:completionHandler:) method provided by WKWebView. Here is an example code snippet that loads a web page and then injects a JavaScript code snippet that changes the background color of the document: In this example, the webView(_:didFinish:) method is called when the web … Read more
To detect when a WKWebView has finished loading in Swift, you can use the WKNavigationDelegate protocol. Here are the steps: Here’s the complete code for loading a URL in a WKWebView and detecting when it has finished loading: You can customize the code to perform different actions when the web view finishes loading.
Loading a URL in a WKWebView in Swift is quite similar to loading it in a UIWebView. Here’s how to do it: In the above code, we first import the WebKit framework and declare a WKWebView instance as a class variable. Then, in the viewDidLoad method, we create the WKWebView, set its navigationDelegate to self, … Read more
To disable zooming in a UIWebView in Swift, you can use the UIScrollViewDelegate method viewForZooming(in:) to return nil, effectively disabling zooming. Here’s an example code snippet: In this code snippet, the viewDidLoad method sets the delegate property of the UIWebView to self, and the scrollView.delegate property to self as well, allowing us to implement the … Read more
Clearing the cache of a UIWebView in Swift can be done by accessing the shared URLCache object and clearing its cached responses. Here’s how to do it: This will remove all cached responses from the cache, including those for the UIWebView. If you only want to clear the cache for the UIWebView, you can set … Read more
To detect when a UIWebView has finished loading in Swift, you can use the UIWebViewDelegate protocol. This protocol provides a set of methods that allow you to receive notifications when various events occur in the web view, including when it finishes loading. To implement the UIWebViewDelegate protocol, you first need to set the delegate property … Read more
To load a URL in a UIWebView in Swift, you can follow these steps: Here’s the complete code:
Swift provides a useful method called stride, which allows you to iterate over a range of values with a specific interval. This can be useful when you need to iterate over dates with a specific interval, such as every day, week, or month. In this article, we will explore how to use stride to iterate … Read more
Asynchronous programming is a critical part of modern programming, especially for iOS app development. Swift has introduced several new features to support asynchronous programming. One such feature is the ability to define and call asynchronous functions. When working with asynchronous functions, it’s common to need to return values from them. In this article, we’ll explore … Read more