jacobsapps

@MainActor
func setupUI() async {
    await someAsyncWork()
}

@concurrent
func someAsyncWork() async {
    // with @concurrent attribute, this runs on the background thread
    try? await Task.sleep(for: .milliseconds(100))
}

jacobsapps

@MainActor
func setupUI() async {
    await someAsyncWork()
}

func someAsyncWork() async {
    // Add breakpoint to test this at runtime - it's on the main thread!
    try? await Task.sleep(for: .milliseconds(100))
}

jacobsapps

actor AuthServiceImpl: AuthService {
    var tokenTask: Task<String, Error>?
    
    func getBearerToken() async throws -> String {
        if tokenTask == nil {
            tokenTask = Task { try await fetchValidAuthToken() }
        }
            
        defer { tokenTask = nil }
        

jacobsapps

actor AuthServiceImpl: AuthService {
    func getBearerToken() async throws -> String {
        if cachedToken.isValid {
            return cachedToken 
        } 
        return try await authAPI.refreshCredentials() <-- suspension point
    }
}

jacobsapps

var purgeCacheTask: Task<Void, Never>?

func setupCacheTTL() {
    purgeCacheTask?.cancel()
    purgeCacheTask = Task(priority: .low) {
        try? await Task.sleep(for: .seconds(300))
        guard !Task.isCancelled else { return }
        cache.clear()
    }
}

jacobsapps

/// Form task creation flags for use with the createAsyncTask builtins.
@available(SwiftStdlib 5.1, *)
@_alwaysEmitIntoClient
func taskCreateFlags(
  priority: TaskPriority?, isChildTask: Bool, copyTaskLocals: Bool,
  inheritContext: Bool, enqueueJob: Bool,
  addPendingGroupTaskUnconditionally: Bool,
  isDiscardingTask: Bool,
  isSynchronousStart: Bool
) -> Int {

jacobsapps

  % if HAS_TASK_EXECUTOR:
  ///   - taskExecutor: The task executor that the child task should be started on and keep using.
  ///      Explicitly passing `nil` as the executor preference is equivalent to no preference,
  ///      and effectively means to inherit the outer context's executor preference.
  ///      You can also pass the ``globalConcurrentExecutor`` global executor explicitly.
  % end

  @discardableResult
  public ${METHOD_VARIANT}( // Task ${METHOD_VARIANT}
    ${",\n    ".join(adjust_params_for_kind(PARAMS))}

jacobsapps

@State private var currentProgress: Double = 0.0

private var percentageLabel: some View {
    Text("\(Int(currentProgress * 100))%")
        .font(.system(size: 48, weight: .bold, design: .rounded))
        .foregroundColor(.white)
}

private var progressBar: some View {
    TimelineView(.animation) { context in

jacobsapps

struct ProgressKeyframes {
    var progress: Double = 0.0
}

@State private var currentProgress: Double = 0.0
@State private var animationStartTime: Date = Date()

private var progressTimeline: KeyframeTimeline<ProgressKeyframes> {
    KeyframeTimeline(initialValue: ProgressKeyframes()) {
        KeyframeTrack(\.progress) {

jacobsapps

KeyframeTrack(\.verticalOffset) {
    LinearKeyframe(20, duration: 0.25)
    SpringKeyframe(-40, duration: 0.5, spring: .snappy)
    CubicKeyframe(0, duration: 0.25)
}