yannxou

import SwiftUI

extension View {

    /// Synchronizes the bindings so changes in any of them are propagated to the other.
    ///
    /// The following example shows how to synchronize a Published property in a view model with a Binding used for presenting a sheet:
    /// ```
    /// class ViewModel: ObservableObject {
    ///     @Published var isPresented = false

yannxou

// source: https://developer.apple.com/forums/thread/682448

struct Parent: View {
    @FocusState var focusedField: UUID?
     
    var body: some View {
        VStack {
            Child(focusedField: _focusedField)
        }
    }

yannxou

// Credit: https://steipete.com/posts/forbidden-controls-in-catalyst-mac-idiom/

extension UIDevice {
    /// Checks if we run in Mac Catalyst Optimized For Mac Idiom
    var isCatalystMacIdiom: Bool {
        if #available(iOS 14, *) {
            return UIDevice.current.userInterfaceIdiom == .mac
        } else {
            return false
        }

yannxou

How to add files to the iOS simulator

Tested with macOS Ventura and xcode 14.

Files can be added by:

A. Drag & drop the file to the iOS simulator

This is the easy way but image/video files are always added to the Photos app. Other kind of files like PDF are added to the Files app.

yannxou

public extension Array {

    /// Adds the elements of a sequence to the end of the array and returns a copy of it.
    ///
    /// This example creates a new array containing the elements of a
    /// `Range<Int>` instance added to an array of integers
    ///
    ///     let array = [1, 2, 3, 4, 5]
    ///     let numbers = array.appending(contentsOf: 10...15)
    ///     print(numbers)

yannxou

import SwiftUI

public struct MarkdownLinkView: View {
    @State private var url: URL?

    public var body: some View {
        VStack(spacing: 20) {
            Text("""
                    **Plain text**:
                    [This is a tappable link](https://www.google.com)

yannxou

# Credits: https://in-thread.sonic-pi.net/t/demo-of-experimental-ableton-link-with-sonic-pi/5869/28
# Call beat_fix with desired quantum just before defining your loops

use_bpm :link
sched_time = 0.5
$latency = 0 + sched_time*1000.00

def beat_fix(quantum=4)
  diff = @tau_api.link_current_time_and_beat(false)[1] % quantum
  x = ((quantum-diff) + 0 - rt($latency/1000.0)) % quantum

yannxou

import XCTest

func XCTAssertEmpty<T>(_ expression: @autoclosure () throws -> T, _ message: @autoclosure () -> String = "", file: StaticString = #filePath, line: UInt = #line) where T : Collection {
    XCTAssertTrue(try expression().isEmpty, message(), file: file, line: line)
}

func XCTAssertNotEmpty<T>(_ expression: @autoclosure () throws -> T, _ message: @autoclosure () -> String = "", file: StaticString = #filePath, line: UInt = #line) where T : Collection {
    XCTAssertFalse(try expression().isEmpty, message(), file: file, line: line)
}

yannxou

// Playground to showcase AnyCancellable instances are not automatically released upon completion if they're stored with the `store` function
import Combine

class LongLivedObject {
    private(set) var bag = Set<AnyCancellable>()
    
    func callCombineOperation() {
        [1,2,3].publisher.sink {
            print("completed: \($0)")
        } receiveValue: {

yannxou

// Credits: https://onmyway133.com/posts/how-to-use-foreach-with-indices-in-swiftui/

import SwiftUI

func ForEachWithIndex<Data: RandomAccessCollection, Content: View>(
    _ data: Data,
    @ViewBuilder content: @escaping (Data.Index, Data.Element) -> Content)
-> some View where Data.Element: Identifiable, Data.Element: Hashable {
    ForEach(Array(zip(data.indices, data)), id: \.1) { index, element in
        content(index, element)