Author: Lead by code
Apr 14, 2024 iOS
Call UIKit function from SwiftUI
To call a UIKit function from SwiftUI, you'll typically use a UIViewRepresentable wrapper to create a SwiftUI view that wraps the UIKit component. Within this wrapper, you can call UIKit functions and handle any necessary interactions between SwiftUI and UIKit.…
Apr 13, 2024 iOS
What enables SwiftUI’s DSL?
SwiftUI's Domain-Specific Language (DSL) is enabled by several key language features and design decisions: Swift Language: SwiftUI is built using the Swift programming language, which provides powerful features such as closures, generics, function builders, property wrappers, and protocol extensions. These…
Apr 12, 2024 iOS
How do I create a multiline TextField in SwiftUI?
In SwiftUI, the TextField view doesn't inherently support multiline text input. However, you can achieve multiline text input behavior by using the TextEditor view instead, which is designed for multiline text input. Here's how you can create a multiline text…
Apr 11, 2024 iOS
Move TextField up when the keyboard has appeared in SwiftUI
Certainly! When working with SwiftUI, ensuring that the keyboard doesn’t obscure your text fields is essential for a smooth user experience. Let’s address this issue. To move the TextField up when the keyboard appears, you can follow these steps: Use a ScrollView: Wrap…
Apr 09, 2024 iOS
How to Pass data between view controllers
Passing data between view controllers is a common task in iOS development. There are several ways to achieve this: 1.Using Segues: If you're transitioning between view controllers using segues in Interface Builder, you can override the prepare(for:sender:) method in the…
Apr 02, 2024 iOS
Understanding GCD in Swift: A Comprehensive Interview Guide
Grand Central Dispatch (GCD) is a low-level API pivotal in managing concurrent operations in Swift, offering a balanced approach to executing tasks across multicore hardware in iOS, macOS, watchOS, and tvOS. Known also as Dispatch, it stands at the core…
Mar 28, 2024 iOS
Optionals in swift
In Swift, optionals are a powerful feature designed to represent the absence of a value in a type-safe way. They allow you to indicate that a value may be present or absent, meaning it could either contain a value of…
Mar 21, 2024 iOS
How to read data from a CSV file and convert it to JSON in Swift
To read data from a CSV file and convert it to JSON in Swift, you can follow these steps: Read the CSV file line by line. Parse each line into an array of values. Convert the array into a dictionary,…