DevAndArtist

import SwiftUI
import Combine

/// The idea is to use State to create a storage object which will be
/// cached and restored by the framework. Then during the update phase we
/// re-inject the object into a nested ObservableObject and subscribe to the
/// ObjectType’s objectWillChange to forward to the _MessageForwarder’s
/// objectWillChange which is already subscribed by the framework as it’s an
/// inner dynamic property of our custom PW which is also a dynamic property.
@propertyWrapper

apptekstudios

//
//  CustomPicker.swift
//
//  Created by T Brennan on 27/3/21.
//

import SwiftUI

struct ContentView: View {
    @State private var selection: Int? = 0

steipete

//
//  KeyCommand.swift
//  Adds Keyboard Shortcuts to SwiftUI on iOS 13
//  See https://steipete.com/posts/fixing-keyboardshortcut-in-swiftui/
//  License: MIT
//
// Usage: (wrap view in `KeyboardEnabledHostingController`)
// Button(action: {
//       print("Button Tapped!!")
//  }) {

keith

Usage

1. swiftc main.swift -emit-module-path main.swiftmodule -emit-executable -enable-private-imports -Xfrontend -enable-implicit-dynamic
2. ./main -> prints From original bar()
3. swiftc -emit-library inject.swift -o inject.dylib -I . -Xlinker -undefined -Xlinker suppress -Xlinker -flat_namespace -Xfrontend -disable-access-control
4. DYLD_INSERT_LIBRARIES=inject.dylib ./main -> prints From replacement bar()

Notes

• Passing -Xfrontend -enable-implicit-dynamic removes you from having to add dynamic to everything you want to be replacable

steipete

import Foundation
import os.log

class URLCacheTest {
    let logger = Logger(subsystem: "URLCacheTest", category: "main")

    // HTTP HEADERS:
    // Date: Wed, 04 Nov 2020 11:13:24 GMT
    // Server: Apache
    // Strict-Transport-Security: max-age=63072000; includeSubdomains; preload

zntfdr

// Original article here: https://fivestars.blog/swiftui/swiftui-share-layout-information.html

import SwiftUI

extension View {
  func readSize(onChange: @escaping (CGSize) -> Void) -> some View {
    background(
      GeometryReader { geometryProxy in
        Color.clear
          .preference(key: SizePreferenceKey.self, value: geometryProxy.size)

zntfdr

// Original article here: https://www.fivestars.blog/swiftui/app-scene-storage.html

import Combine
import SwiftUI

// MARK: Appearance

enum Appearance: String, Codable, CaseIterable, Identifiable {
  case dark
  case light

IanKeen

struct User: Equatable {
    var firstName: String
    var lastName: String
}

@main
struct MyApp: App {
    @State var value = User(firstName: "", lastName: "")
    @State var showEdit = false

zntfdr

// Original article here: https://www.fivestars.blog/code/redacted-custom-effects.html

import SwiftUI

// MARK: Step 1: Create RedactionReason

public enum RedactionReason {

  case placeholder
  case confidential

zntfdr

// Original article here: https://www.fivestars.blog/code/redacted-custom-effects.html

import SwiftUI

extension RedactionReasons {
  public static let confidential = RedactionReasons(rawValue: 1 << 10)
}

struct ContentView: View {
  var body: some View {