magnuskahr

// Working with SwiftUI variadics, i need to set the environment of a child - which seems like is impossible.
// The spy always outputs "fail".

struct Transform<Content: View, Result: View>: View {

    @ViewBuilder let content: Content
    let transformation: (_VariadicView.Children.Element) -> Result

    var body: some View {
        _VariadicView.Tree(

magnuskahr

import SwiftUI

extension View {
    func cascadingAction<ActionInput>(path: CascadingActionNodeModifier<ActionInput>.Path, handler: @escaping (ActionInput) -> Void) -> some View {
        self.modifier(CascadingActionNodeModifier(path: path, handler: handler))
    }
    
    func cascadingAction(path: CascadingActionNodeModifier<Void>.Path, handler: @escaping () -> Void) -> some View {
        self.modifier(CascadingActionNodeModifier(path: path, handler: handler))
    }

magnuskahr

import SwiftUI

struct EnumPicker<T: Hashable & CaseIterable, V: View>: View {
    
    @Binding var selected: T
    var title: String? = nil
    
    let mapping: (T) -> V
    
    var body: some View {

magnuskahr

extension AnyTransition {
    static var flip: AnyTransition {
        .modifier(
            active: FlipEffect(flip: .active, animatableData: 1),
            identity: FlipEffect(flip: .identity, animatableData: 0)
        )
    }
}

private struct FlipEffect: GeometryEffect {

magnuskahr

extension View {
    func fullscreenOverlay<Overlay: View>(isPresented show: Binding<Bool>, @ViewBuilder overlay: () -> Overlay) -> some View {
        background {
            FullscreenOverlayPresenter(show: show, overlay: overlay())
        }
    }
}

struct FullscreenOverlayPresenter<Overlay: View>: UIViewControllerRepresentable {

magnuskahr

SE-0401: unimport for cleaning up files

• Proposal: SE-0401
• Author: Magnus Jensen
• Review Manager: Prof. A. Fools
• Status: Draft

Introduction

Initialization and deinitalization are important parts of how we create structs and classes in Swift. Being a bit more abstract, we have files that can import other modules to expand local capabilities using the import keyword, however, the reversed ain’t true, requiring developers to hassle with imported functionality at lines were it ain’t used.

magnuskahr

struct ValueToggle<Value, Label: View>: View {
    
    @Binding var value: Value?
    let onValue: Value
    let label: () -> Label
    
    @State private var isOn = false
    
    var body: some View {
        Toggle(isOn: $isOn, label: label)

magnuskahr

let alert = UIAlertController(title: "Sender ...", message: nil, preferredStyle: .alert)
let activityIndicator = UIActivityIndicatorView(style: .gray)
activityIndicator.translatesAutoresizingMaskIntoConstraints = false
activityIndicator.isUserInteractionEnabled = false
activityIndicator.startAnimating()
        
alert.view.addSubview(activityIndicator)
alert.view.heightAnchor.constraint(equalToConstant: 95).isActive = true
        
activityIndicator.centerXAnchor.constraint(equalTo: alert.view.centerXAnchor, constant: 0).isActive = true

magnuskahr

import SwiftUI

struct UnwrappingButton<Label: View, T>: View {
    
    enum Unwrapping<T> {
        case element(value: T?, action: (T) -> Void)
        case binding(value: Binding<T?>, action: (Binding<T>) -> Void)
        
        var value: T? {
            switch self {

magnuskahr

//
//  View+pulsating.swift
//
//  Created by Magnus Jensen on 02/10/2021.
//

import SwiftUI

extension View {
    func pulsating() -> some View {