woodycatliu

extension Publisher {
    func awaitOutput() async throws -> Output {
        return try await withCheckedThrowingContinuation { continuation in
                    let lock = NSRecursiveLock()
            var nillableContinuation: CheckedContinuation<Self.Output, Error>? = continuation
            
            var cancelable: AnyCancellable?
            cancelable = first().sink(receiveCompletion: {
                lock.lock(); defer { lock.unlock() }
                switch $0 {

woodycatliu

import Foundation
import Combine
import XCTest

extension XCTestCase {
    func awaitPublisher<P: Publisher>(
        _ publisher: P,
        timeout: TimeInterval,
        description: String,
        trigger: (() -> Void)? = nil,

woodycatliu

//
//  ViewController.swift
//  CombineCombine
//
//  Created by Woody Liu on 2021/8/16.
//

import UIKit
import Combine

woodycatliu

Countdown Timer Publisher (Swift5.2)

In the past we had to set the countdown by Timer.TimePublisher.

We maybe coding to like bellow.

let timer = Timer.publish(every: 0.01, on: .main, in: .common)
    .autoconnect()
 .map { _ in return 0.01 }

woodycatliu

響應式編程 Reactive Programming

此篇將以 Swift 的角度去簡化 RP 理論的解釋

對於 iOS/OS 開發前端，這兩年很頻繁的會聽到這個名詞。
尤其是 Apple 推出 SwiftUI 與 Combine 以後，似乎 RxSwift 已經變成不是選修條件，越來越多公司在職缺條件中 Combine 或 RxSwift 是必要條件。
註：Combine/ RXSwift 是 RP 的高階封裝框架。

什麼是響應式編程(RP) ?

相信很多人 Google 之後會更加模糊，尤其是閱讀完 Wikipedia 艱深又空洞的理論介紹後，只看到一堆專業術語跟更多沒見過的名詞。

woodycatliu

Redux and TCA Learning Record 1

---

TCA

We can use Store and compose a new ViewStore to binding a smaller UI Block in subView or subViewController. How does TCA implements in binding each other ?

I crate some code to reproduce it.

Implement

woodycatliu

Redux and TCA Learning Record 2

---

Pervious ParseTCA, I created some encapsulation to reproduce how TCA to implement in binding to ViewStore and Store.

Today, I will try to refactor them to more complete, like composable action and flexibility.

Step 1.

Refocator Reducer

// refactor after: 

woodycatliu

//
//  OptionalNotified.swift
//
//  Created by Woody Liu on 2021/7/24.
//

import Foundation

@propertyWrapper
public class OptionalNotified<Value: Equatable> {

woodycatliu

//
//  KitProviderLayout.swift
//
//  Created by Woody on 2022/2/11.
//

import UIKit

#if canImport(SwiftUI) && DEBUG
class ViewLayout {

woodycatliu

//
//  KitProviderLayout.swift
//
//  Created by Woody on 2022/2/11.
//

import UIKit

#if canImport(SwiftUI) && DEBUG
class ViewLayout {