The App Store Connect API documentation still doesn't list the new 6.9" iPhone display type: https://developer.apple.com/documentation/appstoreconnectapi/screenshotdisplaytype
I already opened a similar topic about the new iPad Pro 13" screenshot type in May (4 months ago), but nobody replied and that screenshot type is still not listed in the specification. I also created a bug report in Feedback Assistant back then, without any reply.
Why does it take so long to update the API specification?
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Among the newest crash reports downloaded by Xcode for my App Store app there is one that contains a single thread, crashed at libsecinit_appsandbox.c, without any trace of my app name. What could possibly cause such a crash? Is this something related with app signing? The app has been on the App Store for a long time and this never happened to me.
Thread 0 Crashed:
0 libsystem_secinit.dylib 0x00000001941dcfcc _libsecinit_appsandbox.cold.12 + 60 (libsecinit_appsandbox.c:454)
1 libsystem_secinit.dylib 0x00000001941dbf94 _libsecinit_appsandbox + 1764 (libsecinit_appsandbox.c:454)
2 libsystem_trace.dylib 0x00000001872be598 _os_activity_initiate_impl + 64 (activity.c:131)
3 libsystem_secinit.dylib 0x00000001941db85c _libsecinit_initializer + 80 (libsecinit_initializer.c:17)
4 libSystem.B.dylib 0x00000001941f2664 libSystem_initializer + 280 (init.c:338)
5 dyld 0x00000001871fe608 invocation function for block in dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const::$_0::operator()() const + 168 (Loader.cpp:2198)
6 dyld 0x000000018723cd6c invocation function for block in dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 340 (MachOAnalyzer.cpp:2481)
7 dyld 0x0000000187230400 invocation function for block in dyld3::MachOFile::forEachSection(void (dyld3::MachOFile::SectionInfo const&, bool, bool&) block_pointer) const + 496 (MachOFile.cpp:1669)
8 dyld 0x00000001871df2fc dyld3::MachOFile::forEachLoadCommand(Diagnostics&, void (load_command const*, bool&) block_pointer) const + 300 (MachOFile.cpp:1185)
9 dyld 0x000000018722f394 dyld3::MachOFile::forEachSection(void (dyld3::MachOFile::SectionInfo const&, bool, bool&) block_pointer) const + 192 (MachOFile.cpp:1628)
10 dyld 0x000000018723c880 dyld3::MachOAnalyzer::forEachInitializer(Diagnostics&, dyld3::MachOAnalyzer::VMAddrConverter const&, void (unsigned int) block_pointer, void const*) const + 516 (MachOAnalyzer.cpp:2448)
11 dyld 0x00000001871fa53c dyld4::Loader::findAndRunAllInitializers(dyld4::RuntimeState&) const + 564 (Loader.cpp:2189)
12 dyld 0x00000001872042d4 dyld4::PrebuiltLoader::runInitializers(dyld4::RuntimeState&) const + 44 (PrebuiltLoader.cpp:818)
13 dyld 0x000000018721dcc0 dyld4::APIs::runAllInitializersForMain() + 84 (DyldAPIs.cpp:3889)
14 dyld 0x00000001871e4010 dyld4::prepare(dyld4::APIs&, dyld3::MachOAnalyzer const*) + 3156 (dyldMain.cpp:891)
15 dyld 0x00000001871e2ef4 start + 1868 (dyldMain.cpp:1265)
Crash report
On macOS, system symbols displays in a SKTexture as expected, with the correct color and aspect ratio.
But on iOS they are always displayed in black, and sometimes with slightly wrong aspect ratio.
Is there a solution to this problem?
import SpriteKit
#if os(macOS)
import AppKit
#else
import UIKit
#endif
class GameScene: SKScene {
override func didMove(to view: SKView) {
let systemImage = "square.and.arrow.up"
let width = 400.0
#if os(macOS)
let image = NSImage(systemSymbolName: systemImage, accessibilityDescription: nil)!.withSymbolConfiguration(.init(hierarchicalColor: .white))!
let scale = NSScreen.main!.backingScaleFactor
image.size = CGSize(width: width * scale, height: width / image.size.width * image.size.height * scale)
#else
let image = UIImage(systemName: systemImage)!.applyingSymbolConfiguration(.init(pointSize: width))!.applyingSymbolConfiguration(.init(hierarchicalColor: .white))!
#endif
let texture = SKTexture(image: image)
print(image.size, texture.size(), image.size.width / image.size.height)
let size = CGSize(width: width, height: width / image.size.width * image.size.height)
addChild(SKSpriteNode(texture: texture, size: size))
}
}
Every now and then my SceneKit game app crashes and I have no idea why. The SCNView has a overlaySKScene, so it might also be SpriteKit's fault.
The stack trace is
#0 0x0000000241c1470c in jet_context::set_fragment_texture(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, jet_texture*) ()
#27 0x000000010572fd40 in _pthread_wqthread ()
Does anyone have an idea where I could start debugging this, without being able to consistently reproduce it?
All the threads only contain system calls. The crashed thread only contains a single call to my app's code which is main.swift:12.
What could cause such a crash?
Crash report
When I launch the Quick Look Preview Extension target in Xcode, an app called Quick Look Simulator opens with an almost empty window:
Online I read that the Terminal command qlmanage allows to test Quick Look plugins (which I think were an older format for creating Quick Look extensions), but running
qlmanage -p /path/to/previewed/file -c public.text -g /path/to/QuickLookPreviewExtension.appex
(where QuickLookPreviewExtension.appex is generated by the Xcode build and is located in the DerivedData folder) gives an error
Can't get generator at QuickLookPreviewExtension.appex
How can I debug a Quick Look Preview Extension?
I'm using the following code to launch a UI test that forces a specific app language and moves a slider.
I noticed that when forcing right to left text direction (for Arabic or Hebrew), during the UI test the slider doesn't move.
The app content:
struct ContentView: View {
@State private var slider = 0.0
var body: some View {
Slider(value: $slider, in: 0.0...1.0)
}
}
The UI test:
final class problemUITests: XCTestCase {
func testExample() throws {
let app = XCUIApplication()
let locale = Locale(identifier: "ar")
app.launchArguments += ["-AppleLanguages", "(ar)", "-AppleLocale", "ar"]
if locale.language.characterDirection == .rightToLeft {
app.launchArguments += ["-NSForceRightToLeftWritingDirection", "YES", "-AppleTextDirection", "YES"]
}
app.launch()
app.sliders.element.adjust(toNormalizedSliderPosition: 0.3)
}
}
Am I missing something or is there a workaround?
XCUIElement has two methods named typeKey(_:modifierFlags:): the first one takes a String as an argument, the second one a XCUIKeyboardKey, which has constants like .downArrow. Now, even if the documentation says that both methods are "Available in macOS and in iPadOS 15 and later", when compiling the UI tests for iOS, the following line
app.typeKey(.downArrow, modifierFlags: [])
produces a compiler error
Type 'String' has no member 'downArrow'
Am I missing something or is there a workaround?
The sample project Filtering Network Traffic uses IPC (NSXPCConnection etc.) to send data from the network extension to the app, but the documentation for NEFilterProvider says
The sandbox prevents the Filter Data Provider extension from moving network content outside of its address space by blocking all network access, IPC, and disk write operations.
Since my network extension forwards all network traffic to the app so that the user can see it, I was wondering when the app isn’t running and the user shuts down the machine, if the network extension could write the flows it wasn’t able to forward to the app to disk, so that it could read them on the next successful connection to the app. Then almost by accident I read again the documentation and according to the quoted passage a network extension cannot write to disk, but it also cannot use IPC.
Is NSXPCConnection not considered IPC, or could the statement that it cannot write to disk be false as well?
URLResourecKey.tagNamesKey is only available on macOS, so apparently there's no way of reading or writing file tags on iOS. Why is this the case, given that file tags can be set via Finder on macOS and the Files app on iOS devices? Is there a workaround?
Apparently UI tests are unable to tap menu buttons but can tap regular buttons inside forms. Earlier today I was able to see in the Simulator that the UI test tries to tap the button by tapping the center of the containing form row, which works for regular buttons, but not for menu buttons. In fact, when trying in the SwiftUI preview in Xcode it seems that menu buttons have to be tapped exactly on top of them, while regular buttons can be tapped anywhere in the form row. (Now I’m not able to see touches performed by the UI test anymore in the Simulator for an unknown reason, even though I have “Show single touches” enabled in the Simulator settings.)
How can I open a menu button in a UI test?
The UI code:
struct ContentView: View {
@State private var label1 = "Menu 1"
@State private var label2 = "Menu 2"
var body: some View {
NavigationStack {
Form {
LabeledContent("Menu 1") {
Button(label1) {
label1 = "Menu 1 tapped"
}
.accessibilityIdentifier("menu1")
}
LabeledContent("Menu 2") {
Menu(label2) {
Button("Button") {
}
.accessibilityIdentifier("button")
}
.accessibilityIdentifier("menu2")
}
}
}
}
}
#Preview {
ContentView()
}
And the test:
final class problemUITests: XCTestCase {
func testExample() throws {
// UI tests must launch the application that they test.
let app = XCUIApplication()
app.launch()
app.collectionViews.element(boundBy: 0).buttons["menu1"].tap()
app.collectionViews.element(boundBy: 0).buttons["menu2"].tap()
app.collectionViews.element(boundBy: 0).buttons["button"].tap()
}
}
For some time now Xcode has been downloading crash reports from users of my app about crashes related to arrays. One of them looks like this:
...
Code Type: ARM-64
Parent Process: launchd [1]
User ID: 501
Date/Time: 2024-07-18 14:59:40.4375 +0800
OS Version: macOS 15.0 (24A5289h)
...
Crashed Thread: 0
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000001045048b8
Termination Reason: Namespace SIGNAL, Code 5 Trace/BPT trap: 5
Terminating Process: exc handler [1771]
Thread 0 Crashed:
0 MyApp 0x00000001045048b8 specialized Collection.map<A>(_:) + 596
1 MyApp 0x00000001045011e4 MyViewController.validateToolbarButtons() + 648 (MyViewController.swift:742)
...
The relevant code looks like this:
class MyViewController {
func validateToolbarButtons() {
let indexes = tableView.clickedRow == -1 || tableView.selectedRowIndexes.contains(tableView.clickedRow) ? tableView.selectedRowIndexes : IndexSet(integer: tableView.clickedRow)
let items = indexes.map({ myArray[$0] })
...
}
}
The second crash looks like this:
...
Code Type: X86-64 (Native)
Parent Process: launchd [1]
User ID: 502
Date/Time: 2024-07-15 15:53:35.2229 -0400
OS Version: macOS 15.0 (24A5289h)
...
Crashed Thread: 0
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4
Terminating Process: exc handler [13244]
Thread 0 Crashed:
0 libswiftCore.dylib 0x00007ff812904fc0 _assertionFailure(_:_:flags:) + 288
1 MyApp 0x0000000101a31e04 specialized _ArrayBuffer._getElementSlowPath(_:) + 516
2 MyApp 0x00000001019d04eb MyObject.myProperty.setter + 203 (MyObject.swift:706)
3 MyApp 0x000000010192f66e MyViewController.controlTextDidChange(_:) + 190 (MyViewController.swift:166)
...
And the relevant code looks like this:
class MyObject {
var myProperty: [MyObject] {
get {
...
}
set {
let items = newValue.map({ $0.id })
...
}
}
}
What could cause such crashes? Could they be caused by anything other than concurrent access from multiple threads (which I'm quite sure is not the case here, as I only access these arrays from the main thread)?
I'm trying to use
@Environment(\.openDocument) private var openDocument
but it seems to only be available on macOS.
How can I open a document programmatically on iOS? My app has a custom interface for browsing and opening files, so that a tapped file should be shown in the current window, replacing the current file if it exists.
In SwiftUI we can use @AppStorage to save app settings. In my app, I have a settings view which allows the user to change various settings. Since there are many of them, it's not practical to declare a binding for each setting between the settings view and whatever other views effectively use that setting.
Is there a more convenient way to store a setting in one view and access it in another view?
With a Button I can directly copy contents to the clipboard via UIPasteboard.general.setObjects(objects), but this is iOS-specific so I was hoping that ShareLink would allow me to share items in a platform-independent way. Is it possible to show a Copy item in the ShareLink sheet?
import SwiftUI
struct ContentView: View {
let myType = MyType()
var body: some View {
ShareLink(item: myType, preview: SharePreview(myType.text))
}
}
class MyType: Transferable {
let text = "asdf"
static var transferRepresentation: some TransferRepresentation {
ProxyRepresentation { myType in
return myType.text
}
}
}
#Preview {
ContentView()
}