Apr 24, 2024 iOS
SwiftUI: How to make TextField become first responder?
Certainly! Making a TextField become the first responder in SwiftUI can be achieved using a few different approaches. Let’s explore them: Using @FocusState (iOS 15 and later): SwiftUI introduced the @FocusState property wrapper, which allows you to control which input field has focus. Here’s…
Apr 23, 2024 iOS
SwiftUI update navigation bar title color
To update the navigation bar title color in SwiftUI, you can use the navigationBarTitle modifier along with the foregroundColor modifier to adjust the color. Here's an example: import SwiftUI struct ContentView: View { var body: some View { NavigationView {…
Apr 22, 2024 iOS
SwiftUI @State var initialization issue
In SwiftUI, initializing a @State variable directly within the init() method of a View can lead to unexpected behavior. Let’s explore the issue and find a solution. The problem arises because SwiftUI doesn’t allow you to change the value of a @State variable in the initializer. However, you can initialize it. Here’s…
Apr 21, 2024 iOS
What is the difference between ObservedObject and StateObject in SwiftUI
n SwiftUI, both @ObservedObject and @StateObject are property wrappers used for managing external state within a view. However, they are used in slightly different scenarios and have different lifecycle management behaviors: @ObservedObject:Used to declare a dependency on an external object…
Apr 20, 2024 iOS
SwiftUI – Multiple Buttons in a List row
Certainly! When you have multiple buttons in a SwiftUI List row and want to distinguish which button is tapped without the entire row highlighting, you can use the following approach: List { // Both buttons in an HStack so that they appear…
Apr 20, 2024 iOS
Perform a deeplink from SwiftUI widget on tap
Performing a deep link from a SwiftUI widget on tap involves several steps. Widgets in SwiftUI are limited in their interactivity compared to full app views, but you can still use them to open your app and navigate to a…
Apr 19, 2024 iOS
Get the current scroll position of a SwiftUI ScrollView
Certainly! In SwiftUI, you can obtain the current scroll position of a ScrollView using various techniques. Let’s explore a couple of approaches: Using GeometryReader and PreferenceKey: You can track the scroll position by using a custom PreferenceKey. Here’s an example: struct DemoScrollViewOffsetView: View { @State private…
Apr 18, 2024 iOS
Xcode – How to fix ‘NSUnknownKeyException’, Reason: “… this class is not key value coding-compliant for the key X” error?
I'm trying to link a UILabel with an IBOutlet created in my class. My application is crashing with the following error" *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'…
