Post not yet marked as solved
Post marked as unsolved with 5 replies, 164 views
I am targeting iOS17 and using @Observable.
I have an array of items, and I want to present a sheet when the array is greater than zero.
My @Observable looks like this:
@Observable class BStoreOO {
var items: [Int] = []
var showBS: Bool { items.isEmpty }
func updateItems(newItems: [Int]) {
self.items = newItems
}
}
When this array gets added to, from another view, I would like to present a sheet/popover.
Inside my ContentView I have a @State `... that uses that @Observable
struct ContentView: View {
@State var bStore = BStoreOO()
Further down in my View, how should I toggle this view on the basis of the observed array not being empty? I have tried a number of ways. Some error, some don't, but none present the sheet!
For example:
.popover(isPresented: bStore.showBS) {
PopoverContent()
}
Gives the error "Cannot convert value of type 'Bool' to expected argument type 'Binding'"
If I add a State like this: @State private var isShowingBS = false
and then add this:
.onChange(of: bStore.items) {
self.isShowingBS = self.bStore.items.count > 0
}
I don't get errors but nothing is presented.
What is the correct way to bind the presentation of the sheet to whether the observed items array is empty or not?
Posted
by
bath-gorilla.
Last updated
bath-gorilla.
.