Issue #584 Read more https://dasdom.github.io/a-breakpoint-i-cannot-live-without/

Issue #583 In UITests, we can use press from XCUIElement to test drag and drop let fromCat = app.buttons["cat1"].firstMatch let toCat = app.buttons["cat2"] let fromCoordinate = fromCat.coordinate(withNormalizedOffset: CGVector(dx: 0, dy: 0)) let toCoordinate = toCat.coordinate(withNormalizedOffset: CGVector(dx: 0, dy: -0.5)) fromCoordinate.press(forDuration: 1, thenDragTo: toCoordinate) and then take screenshot let screenshot = XCUIScreen.main.screenshot() let attachment = XCTAttachment(screenshot: screenshot) attachment.lifetime = .keepAlways attachment.name = name add(attachment) Screenshot capturing happens after the action, so it may be too late....

Issue #582 Use View Debugging Run on device, Xcode -> Debug -> View debugging -> Rendering -> Color blended layer On Simulator -> Debug -> Color Blended Layer Corner radius https://twitter.com/timoliverau/status/1135999854176395264 Okay. Talked to a Core Animation engineer again: cornerRadius was deliberately improved in Metal so it could be used everywhere. Using a bitmap is WAY heavier in terms of memory and performance. CALayer maskLayer is still heavy. https://developer.apple.com/documentation/quartzcore/calayer/1410818-cornerradius Setting the radius to a value greater than 0....

Issue #581 Read more https://engineering.circle.com/swift-compiler-performance-tips-and-tricks-e86a53a5b42a https://swiftrocks.com/reducing-ios-build-times-by-using-interface-targets.html

Issue #580 Events open url https://stackoverflow.com/questions/58624786/method-applicationopenurloptions-is-not-called Implement scene(_:openURLContexts:) in your scene delegate. If the URL launches your app, you will get scene(_:willConnectTo:options:) instead and it’s in the options. life cycle https://stackoverflow.com/questions/56508764/app-delegate-methods-arent-being-called-in-ios-13 Here’s how it works: If you have an “Application Scene Manifest” in your Info.plist and your app delegate has a configurationForConnectingSceneSession method, the UIApplication won’t send background and foreground lifecycle messages to your app delegate. That means the code in these methods won’t run:...

Issue #579 Use same action, or we can roll our own implementation An NSButton configured as a radio button (with the -buttonType set to NSRadioButton), will now operate in a radio button group for applications linked on 10.8 and later. To have the button work in a radio group, use the same -action for each NSButton instance, and have the same superview for each button. When these conditions are met, checking one button (by changing the -state to 1), will uncheck all other buttons (by setting their -state to 0)....

Issue #578 Locale Read Language and Locale IDs zh-Hans_HK [language designator]-[script designator]_[region designator] Language IDs A language ID identifies a language used in many regions, a dialect used in a specific region, or a script used in multiple regions. To specify a language used in many regions, use a language designator by itself. To specify a specific dialect, use a hyphen to combine a language designator with a region designator. To specify a script, combine a language designator with a script designator....

Issue #577 https://stackoverflow.com/questions/59724731/class-avassetdownloadtask-is-implemented-in-both-cfnetwork-and-avfoundation objc[45250]: Class AVAssetDownloadTask is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/watchOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/CFNetwork.framework/CFNetwork (0x4ddd0ec) and /Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/watchOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/AVFoundation.framework/AVFoundation (0x16aea494). One of the two will be used. Which one is undefined. objc[45250]: Class AVAssetDownloadURLSession is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/watchOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/CFNetwork.framework/CFNetwork (0x4dddd44) and /Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/watchOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/AVFoundation.framework/AVFoundation (0x16aea4bc). One of the two will be used. Which one is undefined. Then URLSession stops working. 2020-01-13 22:50:12.430920+0100 MyAppWatch WatchKit Extension[45250:2099229] Task <3CECDE81-59B9-4EDE-A4ED-1BA173646037>.<1> finished with error [-999] Error Domain=NSURLErrorDomain Code=-999 "cancelled" UserInfo={NSErrorFailingURLKey=https://myapp.com/def.json, NSErrorFailingURLStringKey=https://myapp.com/def.json, NSLocalizedDescription=cancelled} The workaround is to remove Combine based API, and use completion block....

Issue #576 Code See Spek Override testInvocations to specify test methods https://developer.apple.com/documentation/xctest/xctestcase/1496271-testinvocations Returns an array of invocations representing each test method in the test case. Because testInvocations is unavailable in Swift, we need to use ObjC #import "include/SpekHelperTestCase.h" @implementation SpekHelperTestCase - (instancetype)init { self = [super initWithInvocation: nil]; return self; } + (NSArray<NSInvocation *> *)testInvocations { NSArray<NSString *> *selectorStrings = [self spekGenerateTestMethodNames]; NSMutableArray<NSInvocation *> *invocations = [NSMutableArray arrayWithCapacity:selectorStrings.count]; for (NSString *selectorString in selectorStrings) { SEL selector = NSSelectorFromString(selectorString); NSMethodSignature *signature = [self instanceMethodSignatureForSelector:selector]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:signature]; invocation....

Issue #575 Create Objc target http://ankit.im/swift/2016/05/21/creating-objc-cpp-packages-with-swift-package-manager/ Check runtime Check for example _runtime(_ObjC) or os(macOS if you plan to use platform specific feature https://github.com/Quick/Quick/blob/master/Package.swift https://github.com/Quick/Quick/pull/687/files For example, in test we use XCTest which is run via Xcode and is a macOS framework, so we need to check for os(macOS) Note that in Objc framework, the header files must be in include folder targets: { var targets: [Target] = [ .testTarget( name: "QuickTests", dependencies: [ "Quick", "Nimble" ], exclude: [ "QuickAfterSuiteTests/AfterSuiteTests+ObjC....

Issue #574 expr -l Swift -- import UIKit expr -l Swift -- let $collectionView = unsafeBitCast(0x7fddd8180000, to: UICollectionView.self) expr -l Swift -- $collectionView.safeAreaInsets

Issue #573 There are 2 Applications folder /System/Applications: contains Notes, Books, Calculator, … /Applications: contains Safari, Xcode, Keynote, …

Issue #572 After migrating a few pods to use SPM, some libraries fail to load. This is because the workspace now uses both SPM and cocoapods code signature in … not valid for use in process using Library Validation: mapped file has no Team ID and is not a platform binary (signed with custom identity or adhoc?) The workaround is to disable Library validation

Issue #571 From CGFloat.pi / 2 to -CGFloat.pi / 2 + epsilon

Issue #570 Use viewSafeArea @available(iOS 11.0, *) override func viewSafeAreaInsetsDidChange() { super.viewSafeAreaInsetsDidChange() self.collectionView.reloadData() } Use https://developer.apple.com/documentation/uikit/uiview/2891102-safearealayoutguide view.safeAreaLayoutGuide.layoutFrame https://developer.apple.com/documentation/uikit/uiview/2891103-safeareainsets For the view controller’s root view, the insets account for the status bar, other visible bars, and any additional insets that you specified using the additionalSafeAreaInsets property of your view controller. For other views in the view hierarchy, the insets reflect only the portion of the view that is covered. For example, if a view is entirely within the safe area of its superview, the edge insets in this property are 0....

Issue #569 From documentation https://developer.apple.com/documentation/uikit/uicollectionviewlayout/1617726-initiallayoutattributesforappear This method is called after the prepare(forCollectionViewUpdates:) method and before the finalizeCollectionViewUpdates() method for any decoration views that are about to be inserted. Your implementation should return the layout information that describes the initial position and state of the view. The collection view uses this information as the starting point for any animations. (The end point of the animation is the view’s new location in the collection view....

Issue #568 Code EasyTracker Swizzle viewDidAppear https://github.com/onmyway133/EasyTracker/blob/master/Sources/Trackers.swift import UIKit var mapping: [String: (UIViewController) -> Void] = [:] var hasSwizzled = false public func track<T: UIViewController>(_ type: T.Type, block: @escaping (T) -> Void) { let original = #selector(UIViewController.viewDidAppear(_:)) let swizled = #selector(UIViewController.trackers_viewDidAppear(_:)) if !hasSwizzled { swizzle(kClass: UIViewController.self, originalSelector: original, swizzledSelector: swizled) hasSwizzled = true } mapping[NSStringFromClass(type)] = { controller in if let controller = controller as? T { block(controller) } } } extension UIViewController { func trackers_viewDidAppear(_ animated: Bool) { trackers_viewDidAppear(animated) let string = NSStringFromClass(type(of: self)) mapping[string]?...

Issue #567 Code Upstream Make open Adapter https://github.com/onmyway133/Upstream import UIKit public protocol AdapterDelegate: class { /// Apply model to view func configure(model: Any, view: UIView, indexPath: IndexPath) /// Handle view selection func select(model: Any) /// Size the view func size(model: Any, containerSize: CGSize) -> CGSize } /// Act as DataSource and Delegate for UICollectionView, UITableView open class Adapter: NSObject, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UITableViewDataSource, UITableViewDelegate { public var sections: [Section] = [] public weak var collectionView: UICollectionView?...

Issue #566 Code FantasticDisplay Create a container that has blur effect public class HUDContainer: UIVisualEffectView, AnimationAware { private let innerContentView: UIView & AnimationAware public let label = UILabel() public var text: String? { didSet { label.text = text label.sizeToFit() label.isHidden = text == nil } } public init(contentView: UIView & AnimationAware) { self.innerContentView = contentView super.init(effect: UIBlurEffect(style: .light)) self.contentView.addSubview(innerContentView) self.contentView.addSubview(label) innerContentView.pinEdgesToSuperview() configure() } public required init?(coder aDecoder: NSCoder) { fatalError() } public func configure() { layer....

Issue #565 Serious Security: The decade-ending Y2K bug that wasnt Challenges of DateFormatters