schwa

https://mastodon.social/@schwa/111801520286334341

My list:

• Tap location for contextual menus. A lot of apps need to know exactly where a context menu is being triggered from (e.g. canvas style editors etc).
• Modifier key observation during button presses/gestures etc.
• Cursor support
• Native Undo Manager support (SwiftUI has Environment.undoManager but it just exposes Cocoa's UndoManager which doesn't feel very SwiftUI like).
• Expanded File Dialog options (e.g. adding buttons to the dialog).
• The outline variant of List (List(… children: …)) is missing a lot of the flexibility of NSOutlineView (TODO: flesh this out with concrete example).

pookjw

import UIKit
import SwiftUI

fileprivate let storageKey: UnsafeMutableRawPointer = .allocate(byteCount: 1, alignment: 1)
fileprivate let willDealloc: UnsafeMutableRawPointer = .allocate(byteCount: 1, alignment: 1)
fileprivate var didSwizzle: Bool = false

extension View {
  func fixMemoryLeak() -> some View {
    if #available(iOS 17.2, *) {

mbrandonw

How to execute logic when NavigationLink is tapped?

FB10144005

Currently it doesn't seem possible to execute additional logic when a navigation link is tapped with the new NavigationLink(value:) initializer. When the link is tapped it updates path state all the way back at the root NavigationStack to drive navigation, but there are many times where we need to perform logic after the tap and before the drill down.

For example, after tapping a link we may want to pre-emptively load some data to show on the drill down screen. Or we may want to perform some form validation. Or we may want to track some analytics. This does not seem possible with the current link API.

A workaround is to use Buttons instead of NavigationLinks, but then you lose all of the styling and affordances given to links, such as chevrons when used in List.

If the API for NavigationLink cannot be changed to accomodate for this, perhaps a new ButtonStyle could be introduced that allows regular buttons to take on the sty

ole

// A heterogeneous dictionary with strong types in Swift, https://oleb.net/2022/heterogeneous-dictionary/
// Ole Begemann, April 2022

/// A key in a `HeterogeneousDictionary`.
public protocol HeterogeneousDictionaryKey {
  /// The "namespace" the key belongs to. Every `HeterogeneousDictionary` has its associated domain,
  /// and only keys belonging to that domain can be stored in the dictionary.
  associatedtype Domain
  /// The type of the values that can be stored under this key in the dictionary.
  associatedtype Value

AngrenWen

UICellAccessory

Predefined cell accessories for UICollectionViewListCell.

lukaskubanek

/// MIT License
///
/// Copyright (c) 2021 Lukas Kubanek, Structured Path GmbH
///
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:

IanKeen

import SwiftUI

extension View {
    public func discover<T: UIView>(
        tag: Int = .random(in: (.min)...(.max)),
        where predicate: @escaping (T) -> Bool = { _ in true },
        _ closure: @escaping (T) -> Void
    ) -> some View {
        self.overlay(
            DiscoveryView(tag: tag)

tyirvine

//
//  InactiveWindowTapHelper.swift
//
//  Created by Ty Irvine on 2021-06-14.
//
//  This registers clicks on a view in SwiftUI even when the window is not key or main.
//
//  Usage ⤵︎
/*

simonbs

// We'll store a UIViewController as an associated object and don't want to store a strong reference to it.
private final class WeakBoxedValue<T: AnyObject>: NSObject {
    private(set) weak var value: T?

    init(_ value: T?) {
        self.value = value
    }
}

// Use associated objects to a UIViewController that should determine the status bar appearance.

hishnash

//
//  ExampleWindowReaderApp.swift
//  Shared
//
//  Created by Matthaus Woolard on 21/12/2020.
//

import SwiftUI

@main