magnuskahr

import SwiftUI

extension View {
    func cascadingAction<ActionInput>(path: CascadingActionNodeModifier<ActionInput>.Path, handler: @escaping (ActionInput) -> Void) -> some View {
        self.modifier(CascadingActionNodeModifier(path: path, handler: handler))
    }
    
    func cascadingAction(path: CascadingActionNodeModifier<Void>.Path, handler: @escaping () -> Void) -> some View {
        self.modifier(CascadingActionNodeModifier(path: path, handler: handler))
    }

gdavis

//
//  ThreadSafe.swift
//  GDICore
//
//  Created by Grant Davis on 1/2/21.
//  Updated to support `_modify` accessor on 12/5/21.
//
//  Copyright © 2021 Grant Davis Interactive, LLC. All rights reserved.
//
import Foundation

IanKeen

import Combine
import SwiftUI

extension View {
    public func focused<T>(file: StaticString = #file, _ state: FocusState<T>, equals value: T) -> some View {
        modifier(FocusedModifier(state: state, id: value, file: file))
    }
}

@propertyWrapper

jegnux

import SwiftUI
import Combine

public struct ChangeObserver<V: Equatable>: ViewModifier {
    public init(newValue: V, action: @escaping (V) -> Void) {
        self.newValue = newValue
        self.newAction = action
    }

    private typealias Action = (V) -> Void

krzysztofzablocki

#!/bin/zsh

cd "$(dirname "$0")/.."

if [[ -n "$CI" ]] || [[ $1 == "--fail-on-errors" ]] ; then
  FAIL_ON_ERRORS=true
  echo "Running in --fail-on-errors mode"
  ERROR_START=""
  COLOR_END=""
  INFO_START=""

mobilinked

//
//  Created by https://quickplan.app on 2020/11/8.
//

import SwiftUI

/// Control if allow to dismiss the sheet by the user actions
/// - Drag down on the sheet on iPhone and iPad
/// - Tap outside the sheet on iPad
/// No impact to dismiss programatically (by calling "presentationMode.wrappedValue.dismiss()")

anandabits

Towards a safer SwiftUI environment

Swift UI's @EnvironmentObject is currently prone to runtime errors. If a view uses an environment object of a type that was not injected using environmentObject a fatalError occurs. This document sketches a design that would support compile-time checking of environment object usage. It requires a few language enhancements.

Tuple intersection types

Swift's protocol composition types such as Protocol1 & Protocol2 are a form of intersection types. Other forms of intersection types are possible. For example, Flow has object intersection types. Tuple intersection types for Swift would be very similar to these.

Below, you can see the examples in the Flow documentation converted to Swift's tuples:

jls21

If you are having device with new iOS version(iOS 10.3 for example), but don't wanna to update XCode 8.2.1. 
It's very simple to run application on new iOS with old XCode.

Check this out. 
Follow the steps:

1. Download .dmg file with new XCode from apple developer portal (https://developer.apple.com/download/more/).
2. Keep your old XCode and unarchive new XCode from .dmg file.
3. Goto (New XCode path)/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport and copy folder with new iOS
4. Paste it to (Old XCode path)/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport 

kharrison

//
//  CoreDataController.swift
//
//  Created by Keith Harrison http://useyourloaf.com
//  Copyright (c) 2017 Keith Harrison. All rights reserved.
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright

garybernhardt

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.