steipete

lass AppUpdateHandler: ObservableObject {
    #if SPARKLE
    private let delegateHandler = SparkleDelegateHandler()
    let sparkle: SPUStandardUpdaterController

    init() {
        // Setup sparkle updater
        // https://docs.microsoft.com/en-us/appcenter/distribution/sparkleupdates
        // https://rambo.codes/posts/2021-01-08-distributing-mac-apps-outside-the-app-store
        sparkle = SPUStandardUpdaterController(updaterDelegate: delegateHandler, userDriverDelegate: delegateHandler)

steipete

import Foundation
import InterposeKit
import OSLog

/// Hack tow work around Assertion failure in -[NSTouchBarLayout setLeadingWidgetWidth:], NSTouchBarLayout.m:78
/// This sometimes happens when macOS restores a window.
/// This even runs if there is no OS-level touch bar.
class MacOSWorkarounds {
    static let logger = Logger(category: "MacOSWorkarounds")

steipete

- In almost all cases where you type `@ObservedObject`, you really want `@StateObject`. 
If you need to support iOS 13, use `@State` on parent and pass value into child with `@ObservedObject` to simulate `@StateObject`.
Pass arguments to that model in `onAppear`. Example: https://github.com/ra1028/SwiftUI-Hooks/blob/main/Sources/Hooks/HookScope.swift#L39-L41

```
        .onAppear {
            model.onAppear(userTag: userTag)
        }
        .onDisappear {
            model.onDisappear()

steipete

- Optimize Hashable and Equatable. e.g. if you have an id, just use that - instead of having the system use reflection and diff all properties:

    public func hash(into hasher: inout Hasher) {
        hasher.combine(id)
    }

    public static func == (lhs: UserBox, rhs: UserBox) -> Bool {
        return lhs.id == rhs.id
    }
    

steipete

extension Color {
    /// Return a random color
    static var random: Color {
        return Color(
            red: .random(in: 0...1),
            green: .random(in: 0...1),
            blue: .random(in: 0...1)
        )
    }
}

steipete

.onDrop(of: [.fileURL], isTargeted: nil) { providers in
    if let loadableProvider = providers.first(where: { $0.canLoadObject(ofClass: URL.self) }) {
        _ = loadableProvider.loadObject(ofClass: URL.self) { fileURL, _ in
            if let fileURL = fileURL, fileURL.pathExtension.lowercased() == "zip" {
                self.logger.info("Dropped \(fileURL.path)")
                DispatchQueue.main.async {
                    importer.open(zipArchiveURL: fileURL)
                }
            }
        }

steipete

import Foundation
import Combine

/// Run a block in the background with a delay and make it cancellable.
/// - Parameters:
///   - delay: Delay in milliseconds before the background work starts
///   - queue: Background queue to use
///   - worker: Worker block to execute on queue
///   - completion: Completion handler executed on main thread.
/// - Returns: AnyCancellable token

steipete

import Foundation
import SwiftUI

@available(iOS 13.0, *)
extension View {
    /// Wraps view into an AnyView
    func eraseToAnyView() -> AnyView {
        AnyView(self)
    }

steipete

//
//  ContentView.swift
//  Shared
//
//  Created by Peter Steinberger on 20.02.21.
//

import SwiftUI

struct SettingsGroup<Content: View>: View {

steipete

//: A Cocoa based Playground to present user interface

import SwiftUI
import PlaygroundSupport

struct ContentView: View {
    var body: some View {
        HStack {
            VStack {
                HStack {