I have a 2019 16 inch MacBook Pro running Catalina 10.15.5 with a strange problem. Just launching the Simulator can hard freeze the entire machine. The Simulator launches, the device shows a spinner that just keeps going and within a couple of seconds the machine beach-balls and the entire UI freezes with no possibility of option-command-escape to kill the Simulator. I've looked in the logs afterward and I don't see any good clues. This problem is much more likely to occur with a simulated iPhone device (much more rare with a simulated iPad) and it doesn't happen every time I launch a simulated iPhone, just somewhere between 1/3 and 1/2 of the time. Does anyone have any debugging or diagnostic ideas? Thanks!

Hi all - I am curious as to whether it is a good idea to make a separate Apple ID for distributing apps, etc. I am working on apps as a side gig and I'm trying to decide how to approach this. Are there any "gotchas" if you set up a second Apple ID just for your paid developer account? I assume you can set up your personal ID as a "developer" in App Store Connect for testing. How do you do two-factor for the "business" ID? (Do you need a separate device for that?) Do you use the same phone number for both accounts (I'm only planning on having one phone, haha)? Are there actually any meaningful advantages to having a separate Apple ID for this purpose? Thanks for any thoughts on this!

Hello - I posted this question on StackOverflow and it didn't get any traction, so I thought I'd repost it here. https://stackoverflow.com/questions/65370523/how-to-run-ui-tests-for-swiftui-app-lifecycle-apps-with-different-environments I'm trying to figure out how to run UI tests for a SwiftUI app that is using the "SwiftUI App lifecycle" with preview data - in particular some data for CoreData, but it might be more general. With the SwiftUI App lifecycle, we know have "main" entry points like: @main struct MyApp: App { 	let persistenceController = PersistenceController.shared 	 	var body: some Scene { 		WindowGroup { 			ContentView() 				.environment(\.managedObjectContext, persistenceController.container.viewContext) 		} 	} } wherePersistenceController is a struct that is managing the CoreData stuff (with this example created by Apple's template if you just make a new App and select "use CoreData"). I have written an extension with a bunch of preview data that can easily be loaded in PreviewProviders just by setting a different managedObjectContext with .environment() on the view code, etc. for use while developing the UI code. Is there a way to make this preview data available inside a UI test? We usually have UI test code that looks sort of like: class MyUITests: XCTestCase { 	 	var app: XCUIApplication! 	 	override func setUpWithError() throws { 		app = XCUIApplication() 		app.launch() 		continueAfterFailure = false 	} 	 	func testTabBarButtonsAndNavTitles() throws { 		let tabBar = app.tabBars["Tab Bar"] 		let loadAndGoTabBarButton = tabBar.buttons["Load and go"] 		loadAndGoTabBarButton.tap() 		XCTAssert(app.navigationBars["Load a thing and do it"].exists) 	} Is there a way I can tell the XCUIApplication() to use a different managedObjectContext value in the environment call when it starts? If not - it seems like the only way to test some of the SwiftUI elements would be to have the UI test function first "tap around" and enter a bunch of preview data, but this is really cumbersome. It would be better if the app could start up for testing with some saved data. Apologies for not providing a fully runnable piece of code to illustrate this, but it would require a lot of infrastructure and boilerplate, etc. Thanks for any thoughts on this!