Multiple Alerts in one view can not be called SwiftUI
So i'm still not 100% sure why this was unable to post an alert this way? But I was able to fix this issue simply by placing the alert in the main view.
I changed the @State
variable isResetting
to a binding bool and paced a new state variable in the main class. I then just copied over the .alert
and this seems to solve the issue.
The struct now looks like this
private struct resetButton: View {
@Binding var isResetting: Bool
var body: some View {
Button("Reset"){
self.isResetting = true
}
}
}
and the alert is the same but is now in the class calling resetButton()
.
Edit:
So it appears that SwiftUI won't let you call multiple alerts from the same view, however, if you want multiple alerts in the same view then there is a way around this.
You can call an alert from anywhere inside of a view so the following solution works.
private struct exampleAlert: View {
@State var alert1 = false
@State var alert2 = false
var body: some View {
Vstack{
Button("alert 1"){
self.alert1 = true
}.alert(isPresented: $alert1) {
Alert(title: Text("Important message"), message: Text("This alert can show"), dismissButton: .default(Text("Got it!")))
}
Button("alert 2"){
self.alert2 = true
}.alert(isPresented: $alert2) {
Alert(title: Text("Important message"), message: Text("This alert can also show"), dismissButton: .default(Text("Got it!")))
}
}
}
}
The catch is here that if either of these alerts were to be placed on the Vstack, one will not function. If they are placed on separate views though then both can be called as expected.
Perhaps this is something that will be rectified in a future update? In the meantime though, here is a solution for working around this problem.
You can show alerts dynamically by using .alert(item:) instead .alert(isPresented:):
struct AlertItem: Identifiable {
var id = UUID()
var title: Text
var message: Text?
var dismissButton: Alert.Button?
}
struct ContentView: View {
@State private var alertItem: AlertItem?
var body: some View {
VStack {
Button("First Alert") {
self.alertItem = AlertItem(title: Text("First Alert"), message: Text("Message"))
}
Button("Second Alert") {
self.alertItem = AlertItem(title: Text("Second Alert"), message: nil, dismissButton: .cancel(Text("Some Cancel")))
}
Button("Third Alert") {
self.alertItem = AlertItem(title: Text("Third Alert"))
}
}
.alert(item: $alertItem) { alertItem in
Alert(title: alertItem.title, message: alertItem.message, dismissButton: alertItem.dismissButton)
}
}
}