Im using a lazyvgrid with a customImage View that supports lazy loading of a high res image (otherwise thumb is used) What I'm looking for is some way to initiate my loadFullImage() functionality when the CustomImage view is visible ( onAppear() is not what I need. its called when view is loaded in grid, not when visible ) I've tried variation of this, but they do not work reliably CustomImage(key: key) .background( GeometryReader { proxy in Color.clear .preference(key: ViewVisibleKey.self, value: true) } ) .onPreferenceChange(ViewVisibleKey.self) { isVisible in DispatchQueue.main.async { loadImage(key) } } } Anyone have any suggestions ? either why the code above doesn't work reliably (its like 10%) , or some other way to accomplish this. Thanks

I have a swiftui iPhone app running on the "iOS Apps on Mac" simulator. What I'm trying to do is get a notification when the window size changes, but nothing seems to work. I have tried .onReceive(NotificationCenter.default.publisher(for: UIContentSizeCategory.didChangeNotification)) { _ in updateStuff() } I also tried .onAppear() { updateStuff() } but neither seems to get called any suggestions ?

I'm having issues with a Lazyvgrid displaying images after the screen orientation changes ( either from horizontal to portrait, or the reverse ) What happens is the images are not sized correctly. If 2 column , I see 1/3 of column 1 and the image in column 2 takes 2/3 of the screen width. Similar issues with 3 or 6 column layout. The Lazyvgrid is inside a ScrollView and thats inside a Tabview. I'v tried to trick an update by changing the column layout, the content mode (fit/fill) of the images, etc. but so far nothing has worked. Any suggestions ?, anyway to invalidate a lazyvgrid and have swiftui rebuild it ? Thanks.

I'd like to offer an option to let my users see tips again. Is there a way to do this either globally, or per tip ? right now the only option I see is to have initialization login to call Tips.resetDatastore() and have the user restart the app. I'm currently using events and rules to only show each tip once.

I want to test running my iPhone app in the MacOs iPhone emulator. I installed the release version of my app from the store and it works 95%. So I'd like to test a new build , but I'm not sure how to install it.