task delay swift

task_delay.swift

import Foundation

// reference: https://www.swiftbysundell.com/articles/delaying-an-async-swift-task/

let loadingSpinnerTask = Task.delayed(byTimeInterval: 0.15) {
    self.showLoadingSpinner()
}

Task {
    await a()
    loadingSpinnerTask.cancel()
    b()
}


extension Task where Failure == Error {
    static func delayed(
        byTimeInterval delayInterval: TimeInterval,
        priority: TaskPriority? = nil,
        operation: @escaping @Sendable () async throws -> Success
    ) -> Task {
        Task(priority: priority) {
            let delay = UInt64(delayInterval * 1_000_000_000)
            try await Task<Never, Never>.sleep(nanoseconds: delay)
            return try await operation()
        }
    }
}