iOS
How To Simply Use Swift Closures
1. The Definition Of Swift Closures. Closures are described in the Swift development documentation as functional independent modules that can be passed and referenced in your code. Closures in Swift are similar to blocks in C and Objective-C, as well as anonymous functions in other programming languages. Closures are primarily designed to capture and store …
Swift String Interpolation Example
String interpolation is a way to construct new strings that contain constants, variables, literals, and expressions. Each entry of the string literal you inserted is wrapped in parentheses prefixed by a backslash: let x = 3 let str = “\(x) * 5 = \(Double(x) * 5)” print(str) Below is above code execution result. 3 * …
iOS Autolayout Introduction
How did you set up UI layout in older iOS application development? Write a lot of coordinate calculation code? To ensure a perfect UI effect on both the 3.5-inch and 4.0-inch screens, you sometimes have to write different coordinate calculations for each screen? But now with the iOS auto-layout function, things change for the better.