VadimYakovliev

// Original article here: https://www.fivestars.blog/code/swiftui-hierarchy-list.html

import SwiftUI

struct FileItem: Identifiable {
  let name: String
  var children: [FileItem]?

  var id: String { name }

VadimYakovliev

import UIKit

struct Action {
    let title: String
    let style: UIAlertAction.Style
    let action: () -> Void
}

extension Action {
    static func `default`(_ title: String, action: @escaping () -> Void) -> [Action] {

VadimYakovliev

Group {
  UIViewPreview {
    let button = FavoriteButton(frame: .zero)
    return button
  }
  UIViewPreview {
    let button = FavoriteButton(frame: .zero)
    button.isFavorited = true
    return button
  }

VadimYakovliev

public protocol RichTextEditorDelegate: class {
    func textDidChange(text: String)
    func heightDidChange()
}

fileprivate class WeakScriptMessageHandler: NSObject, WKScriptMessageHandler {
    weak var delegate: WKScriptMessageHandler?

    init(delegate: WKScriptMessageHandler) {
        self.delegate = delegate

VadimYakovliev

- (UIImage *)dynamicImage
{
    UITraitCollection *const baseTraitCollection = /* an existing trait collection */;
    UITraitCollection *const lightTraitCollection = [UITraitCollection traitCollectionWithTraitsFromCollections:@[baseTraitCollection, [UITraitCollection traitCollectionWithUserInterfaceStyle:UIUserInterfaceStyleLight]]];
    UITraitCollection *const purelyDarkTraitCollection = [UITraitCollection traitCollectionWithUserInterfaceStyle:UIUserInterfaceStyleDark];
    UITraitCollection *const darkTraitCollection = [UITraitCollection traitCollectionWithTraitsFromCollections:@[baseTraitCollection, purelyDarkTraitCollection]];
    
    __block UIImage *lightImage;
    [lightTraitCollection performAsCurrentTraitCollection:^{
        lightImage = /* draw image */;

VadimYakovliev

/*

ModelBinding<T>: a simple class for binding a Flutter app to a immutable
model of type T.

This is a complete application. The app shows the state of an instance of
MyModel in a button's label, and replaces its MyModel instance when the
button is pressed.

ModelBinding is an inherited widget that must be created in a context above

VadimYakovliev

tap "ethereum/ethereum"
tap "heroku/brew"
tap "homebrew/boneyard"
tap "homebrew/bundle"
tap "homebrew/cask"
tap "homebrew/cask-versions"
tap "homebrew/core"
tap "paritytech/paritytech"
cask "java"
brew "ansible"

VadimYakovliev

Xcode line duplicate

Bind keys to duplicate lines in Xcode

1. Open below directory in Finder with Cmnd + Shift + G

/Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Versions/A/Resources/

VadimYakovliev

import UIKit
import Foundation

func test(named: String,
          _ work: (_ assert: @escaping (Bool) -> Void, _ done: @escaping () -> Void) -> Void) {
    var testPass = true
    var assertCount = 0
    let assert: (Bool) -> Void = { value in
        assertCount = assertCount + 1
        testPass = testPass && value

VadimYakovliev

{% for type in types.based.JSONAutoRepresentable| %}
// sourcery:inline:auto:{{ type.name }}.JSONAutoRepresentable
    init(_ json: JSON) {
        {% for variable in type.storedVariables where variable|!annotated:"skip" %}
        {% elif variable.type.based.JSONAutoRepresentable %}
        {{ variable.name }} = {{ variable.unwrappedTypeName }}(json["{{ variable.name|camelToSnakeCase }}"])
        {% elif variable.isArray %}
        {{ variable.name }} = json["{{ variable.name|camelToSnakeCase }}"].arrayValue.map({{ variable.typeName.array.elementTypeName.unwrappedTypeName }}.init)
        {% elif variable.type.kind == "enum" %}
        {{ variable.name }} = {{ variable.unwrappedTypeName }}(rawValue: json["{{ variable.name|camelToSnakeCase }}"].stringValue) ?? {{ variable.defaultValue }}