How do you find a maximum value in a Swift dictionary?
let maximum = data.reduce(0.0) { max($0, $1.1) } Just a quick way using reduce. or: data.values.max() Output: print(maximum) // 5.828
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Show folder’s contents in finder using Swift
Use the selectFile method and pass nil as first argument and the path to the folder to be shown as second argument. NSWorkspace.shared.selectFile(nil, inFileViewerRootedAtPath: “/Users/”)
Swift how to resign first responder on all uiTextfield
A simpler approach would by to end editing on the UIView containing the UITextFields by saying: view.endEditing(true)
SwiftUI – Change TabBar Icon Color
Solution 1 Use renderingMode(.template) struct MainView: View { var body: some View { TabView { LoginView().tabItem { VStack { Text(“Login”) Image(“login”).renderingMode(.template) } } HomeView().tabItem { VStack { Text(“Home”) Image(“home”).renderingMode(.template) } } }.accentColor(.orange) } } Solution 2 Make tabItem type enum TabViewItemType: String { case login = “login” case home = “home” case search = “search” … Read more
Is it possible to retrieve an exception inside a guard-statement with “try?”?
I have found page no 42 in “The Swift Programming Language (Swift 2.2 Prerelease)” where it states explicitly the following: Another way to handle errors is to use try? to convert the result to an optional. If the function throws an error, the specific error is discarded and the result is nil. Otherwise, the result … Read more
Swift Package Manager tools version for development snapshots
In Package.swift // swift-tools-version:5.3 Although it’s a comment and it should be ignored, it’s not! change it to : // swift-tools-version:5.2 Sometimes you need to delete .build and .swiftpm directories (that are hiddent by default) too. Note Don’t forget to close and reopen the project after the changes.
How to do “Deep Copy” in Swift?
Deep Copy Your example is not a deep copy as discussed on StackOverflow. Getting a true deep copy of an object would often require NSKeyedArchiver Swift and copying The NSCopying protocol is the Objective-C way of providing object copies because everything was a pointer and you needed a way of managing the generation of copies … Read more
SwiftUI Binding default value (Argument labels ‘(wrappedValue:)’ do not match any available overloads)
Here it is struct MyView: View { @Binding var a: Bool init(a: Binding<Bool> = .constant(true)) { _a = a } var body: some View { Text(“MyView”) } }
How to compare “Any” value types
The only way to do this is with a function other than == that takes a type parameter, and then compares the values if they are both of that type: func isEqual<T: Equatable>(type: T.Type, a: Any, b: Any) -> Bool { guard let a = a as? T, let b = b as? T else … Read more
What is the difference between HTTP parameters and HTTP headers?
The accepted answer is very practical. Make sure you see it. But there are two foundational differences I will discuss in depth: Where header and parameters are placed in an HTTP Request A URL is different from an HTTP Message. An HTTP Message can either be a Request or a Response. In this answer I … Read more