Alert + ProgressView (Activity Indicator) in SwiftUI - swift

Question

Is there any way to add Activity View (Indicator) into SwiftUI Alert somewhere? I'm just curious because I haven't found any appropriate answer on such question. I need something like this:
I'm using iOS 14 SwiftUI Alert with optional state that conforms to Identifiable.
There was a way in UIKit UIAlertController to add subview to the alert's view.
Is there some ideas on that, thanks in advance.

Answer 1

I had to something similar in an app and basically it is not possible using the native SwiftUI .alert API. You can
Use a custom UIAlertController
Make a custom overlay that does what you want
Because of that I created CustomAlert so I can easily make alerts with custom content. It essentially recreates the alert in SwiftUI and exposes a similar API for it.
.customAlert(isPresented: $alertShown) {
HStack(spacing: 16) {
ProgressView()
.progressViewStyle(.circular)
.tint(.blue)
Text("Processing...")
.font(.headline)
}
} actions: {
Button(role: .cancel) {
// Cancel Action
} label: {
Text("Cancel")
}
}

Answer 2

For maximum control over the content and behaviour of the alert popup, I recommend just creating your own
struct ContentView: View {
var alertShown: Bool = false
var body: some View {
ZStack {
VStack {
// your main view
}
.blur(radius: alertShown ? 15 : 0)
if alertShown {
AlertView()
}
}
}
}
struct AlertView: View {
var body: some View {
ZStack {
RoundedRectangle(cornerRadius: 6)
.foregroundColor(.blue)
VStack {
HStack {
ProgressView()
Text("Processing...")
}
Button(action: {
// action
}, label: {
Text("Cancel")
})
.foregroundColor(.black)
}
}
}
}