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:

lukaskubanek

import InterposeKit
import SwiftUI

/// A workaround for an issue in SwiftUI related to delayed highlighting of list rows upon user
/// interaction, rendering it inconsistent with UIKit.
///
/// This fix implements the solution proposed by Léo Natan and utilizes `InterposeKit` by Peter
/// Steinberger to modify the behavior of `UICollectionViewCell` instances used internally
/// by SwiftUI.
///

lukaskubanek

Shortcut	Description	Overridable?[^1]
Fn-A	Navigate Dock	No
Fn-Shift-A	Launchpad	No
Fn-C	Control Center	No
Fn-E	Emoji & Symbols	Yes
Fn-F	Enter/Exit Full Screen	Yes
Fn-H	Desktop	No
Fn-M	Navigate Main Menu	Yes
Fn-N	Notifications	No

lukaskubanek

import InterposeKit
import UIKit
import SwiftUI
import SwiftUIIntrospect

extension View {
    public func keyboardAvoidanceDisabled() -> some View {
        self.introspect(.viewController, on: .iOS(.v17)) { viewController in
            if let hostingView = viewController.parent?.view {
                if String(describing: type(of: hostingView)).hasPrefix("_UIHostingView") {

lukaskubanek

This is an excerpt from our internal documentation describing an issue with drawing in NSViews on macOS Big Sur.

1️⃣ Introduction

In macOS Big Sur (probably starting with β9), Apple changed the default contents format for backing layers of NSViews. Instead of an explicit CALayerContentsFormat.RGBA8Uint value, an „Automatic“ value is now used. Even though it also resolves into „RGBA8“ in our testing, it has some serious implications as it breaks assumptions our code relies on.

I first stumbled upon this issue in this tweet by Frank. It links to a thread on Apple Forums by Mark that contains valuable information as well as ideas for workarounds. The changed behavior was also confirmed by Marcin in this tweet.

2️⃣ Impact on Diagrams

lukaskubanek

import AppKit

public extension NSBezierPath {
    
    public convenience init(path: CGPath) {
        self.init()
        
        let pathPtr = UnsafeMutablePointer<NSBezierPath>.alloc(1)
        pathPtr.initialize(self)
        

lukaskubanek

import XCTest

public func XCTAssertThrowsError<T, E: Error & Equatable>(
    _ expression: @autoclosure () throws -> T,
    expected expectedError: E,
    _ message: String = "",
    file: StaticString = #filePath,
    line: UInt = #line
) {
    XCTAssertThrowsError(try expression(), message, file: file, line: line) { error in

lukaskubanek

1. Import keybase.io keys to GPG locally (→ link)
2. Add new email address to the public key (→ link)
3. Export the public key and upload it to keybase.io again (→ link)
4. Configure GPG for Git locally (→ link)

lukaskubanek

- (void)method
{
    NSUndoManager *undoManager = [self undoManager];
    [undoManager disableUndoRegistration];
    
    /* do something */
    
    [self.managedObjectContext processPendingChanges];
    [undoManager enableUndoRegistration];
}

lukaskubanek

#!/bin/sh

# commands taken from http://osxdaily.com/2012/08/06/disable-notification-center-remove-menu-bar-icon-os-x/
# usage: curl -L https://gist.github.com/raw/4529265/eb7df9dcd9bf92ecab978ccc500bd80221565aef/disable-notification-center.sh | sh

launchctl unload -w /System/Library/LaunchAgents/com.apple.notificationcenterui.plist
killall NotificationCenter