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Issue #554
A class must inherit from NSObject, and we have 3 ways to trigger property change
Use setValue(value: AnyObject?, forKey key: String) from NSKeyValueCoding
class MyObjectToObserve: NSObject {
var myDate = NSDate()
func …Issue #553
Read Swift asserts - the missing manual
debug release release
function -Onone -O -Ounchecked
assert() YES NO NO
assertionFailure() YES NO NO** …Issue #552
type Components = {
day: number,
month: number,
year: number
}
export default class DateFormatter {
// 2018-11-11T00:00:00
static ISOStringWithoutTimeZone = (date: Date): string => {
const components = DateFormatter. …Issue #551
import Foundation
public extension String {
func matches(pattern: String) throws -> [String] {
let regex = try NSRegularExpression(pattern: pattern)
let results = regex.matches(in: self, options: [], …Issue #550
Issue #549
public class Sequence: Task {
public func run(workflow: Workflow, completion: @escaping TaskCompletion) {
let semaphore = DispatchSemaphore(value: 0)
runFirst(tasks: tasks, workflow: workflow, completion: …Issue #547
func sync<T>(_ work: (@escaping ([T]) -> Void) -> Void) -> [T] {
let semaphore = DispatchSemaphore(value: 1)
var results = [T]()
work { values in
results = values
semaphore.signal()
} …Issue #545
Xcode 10 Localization catalog and XclocReader
Xcode 11 localized screenshots
Issue #544
man xcodebuild
XCODEBUILD(1) BSD General Commands Manual XCODEBUILD(1)
NAME
xcodebuild -- build Xcode projects and workspaces
SYNOPSIS
xcodebuild [-project name.xcodeproj] [[-target …Issue #543
Workspace has its own DerivedData folder
DerivedData
ModuleCache.noindex
workspace_name
Build
Products
Debug-iphonesimulator
Cat
Dog
Dog2
Index
Info.plist
Logs …Issue #542
See code Puma
Build is UsesXcodeBuild is UsesCommandLine
/// Any task that uses command line
public protocol UsesCommandLine: AnyObject {}
public extension UsesCommandLine {
func runBash(
workflow: …Issue #541
A scheme, either for app or test, consists of actions
Used when Cmd+R. The executable specifies which app target to run
Used when Cmd+U. The tests specifies which test target to run
Test target recognises app …
Issue #540
-testLanguage language
Specifies ISO 639-1 language during testing. This overrides the setting for the test action of a
scheme in a workspace.
-testRegion region
Specifies ISO 3166-1 …Issue #539
extension XCTestCase {
func takeScreenshot(name: String) {
let screenshot = XCUIScreen.main.screenshot()
let attach = XCTAttachment(screenshot: screenshot)
attach.lifetime = .keepAlways …Issue #538
UIToolbar -> _UIToolbarContentView -> _UIButtonBarStackVie
_UIToolbarContentView's width should equal 0
_UIToolbarContentView's height should equal 0
Workaround that fixes 1 warning
toolbar. …Issue #537
In xcodebuild, specify launch arguments.
You can specify this under Launch Arguments in Run action of the app scheme or UITest scheme
-AppleLanguages (jp) -AppleLocale (jp_JP)
(lldb) po ProcessInfo().arguments
▿ …Issue #536
extension UITextField {
func setLeftView(_ view: UIView, padding: CGFloat) {
view.translatesAutoresizingMaskIntoConstraints = true
let outerView = UIView()
outerView.translatesAutoresizingMaskIntoConstraints = …Issue #535
datePicker.setValue(UIColor.green, forKey: "textColor")
datePicker.setValue(false, forKey: "highlightsToday")
In iOS 14
if #available(iOS 14.0, *) {
datePicker.preferredDatePickerStyle = .wheels
datePicker.tintColor …I’m a thinker and storyteller with a passion for exploring the intersection of creativity and technology
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