darrarski

import SwiftUI

struct Item: Equatable, Identifiable {
    var id = UUID()
    var color: Color
}

struct ContentView: View {
    @State var items = Array(repeating: [Color.red, .green, .blue], count: 10)
        .flatMap { $0 }

darrarski

import SwiftUI

extension View {
  func bottomBar<Bar: View>(
    ignoresKeyboard: Bool = true,
    frameChangeAnimation: Animation? = .default,
    @ViewBuilder bar: @escaping () -> Bar
  ) -> some View {
    modifier(BottomBarViewModifier(
      ignoresKeyboard: ignoresKeyboard,

darrarski

import SwiftUI

extension View {
  func geometryReader<Geometry: Codable>(
    geometry: @escaping (GeometryProxy) -> Geometry,
    onChange: @escaping (Geometry) -> Void
  ) -> some View {
    modifier(GeometryReaderViewModifier(
      geometry: geometry,
      onChange: onChange

darrarski

import SwiftUI

public extension View {
  func onSizeChange(
    ignoreSafeArea: Bool = false,
    round: Bool = false,
    perform action: @escaping (CGSize) -> Void
  ) -> some View {
    modifier(SizeChangeModifier(
      ignoreSafeArea: ignoreSafeArea,

darrarski

import CoreMotion
import SwiftUI

public final class DeviceOrientationObserver: ObservableObject {
  public init() {
    manager.startAccelerometerUpdates(to: OperationQueue.main) { [weak self] data, error in
      guard error == nil, let acceleration = data?.acceleration else {
        self?.value = .unknown
        return
      }

darrarski

import SwiftUI

public extension View {
  /// Perform action when interface orientation of the view changes
  /// - Parameter perform: Action to perform
  /// - Returns: Modified view
  func onInterfaceOrientationChange(perform: @escaping (UIInterfaceOrientation) -> Void) -> some View {
    modifier(OnInterfaceOrientationChangeViewModifier(onChange: perform))
  }
}

darrarski

import SwiftUI

public final class DeviceOrientationObserver: ObservableObject {
  public init(notificationCenter: NotificationCenter = .default) {
    observation = notificationCenter.addObserver(
      forName: UIDevice.orientationDidChangeNotification,
      object: nil,
      queue: .main,
      using: { [weak self] notification in
        self?.value = (notification.object as? UIDevice)?.orientation ?? .unknown

darrarski

protocol CaseSwitchable: CaseIterable, Equatable {}

extension CaseSwitchable {
  mutating func `switch`() {
    self = next()
  }

  func next() -> Self {
    self.next() ?? Self.allCases.first!
  }

darrarski

protocol CaseTogglable {}

extension CaseTogglable where Self: CaseIterable, Self: Equatable {
  mutating func toggle() {
    assert(Self.allCases.isEmpty == false, "CaseTogglable cannot be applied to an enum with no cases!")
    let index = Self.allCases.firstIndex(of: self)!
    let nextIndex = Self.allCases.index(after: index)
    if nextIndex < Self.allCases.endIndex {
      self = Self.allCases[nextIndex]
    } else {

darrarski

// Based on "Lazy navigation in SwiftUI" blogpost by Majid Jabrayilov
// Blogpost url: https://swiftwithmajid.com/2021/01/27/lazy-navigation-in-swiftui/
// This gist shows an issue with using conditional NavigationLinks.
// When using StackNavigationViewStyle push animations are not present.

import SwiftUI

@main
struct LazyNavApp: App {
  var body: some Scene {