Author: Lead by code
Apr 27, 2024 iOS
SwiftUI – How to pass EnvironmentObject into View Model
Certainly! When working with SwiftUI, you can pass an EnvironmentObject into a view model to share data across your app. Here are the steps to achieve this: Create an Environment Object: First, create an environment object that holds the data you want…
Apr 26, 2024 iOS
Returning data from async call in Swift function
To return data from an asynchronous call in Swift, you typically use closures, completion handlers, or async/await if you're using Swift 5.5 or later. Here are examples of each approach: Using Completion Handler: func fetchDataFromURL(_ url: URL, completion: @escaping (Result<Data,…
Apr 26, 2024 iOS
SwiftUI 2: the way to open view in new window
Certainly! In SwiftUI 2.0, you can open a new view in a separate window using the .openWindow environment key. Let’s break down the steps: Define Your App State: First, create an AppState that holds the selected book (or any other relevant data). For example: class…
Apr 25, 2024 iOS
Find the largest three elements in an array using swift
Swift Program to find the largest of three number in given array import Foundation var array = [54,-3,23,45,5,32] func getLargestofThreeNumbers(_ arr:[Int]) ->[Int]{ var first = 0 var second = 0 var thrid = 0 var large = [Int]() if arr.count…
Apr 24, 2024 iOS
Show a new View from Button press Swift UI
To show a new view from a button press in SwiftUI, you typically use a navigation stack and navigation link. Here's how you can achieve that: import SwiftUI struct ContentView: View { @State private var isShowingNewView = false var body:…
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…
