Passing Variables between Views SwiftUI - variables

Question

Basic questions again:
I want to make the variable "anytext" visible and accessible for all future views I am going to add. In my case the variable is going to be a String.
Does the procedure change if it's a Float?
How can I save it as a Global variable?
Does the variable delete itself if I restart the app? And how do I save variables that will remain even after restarting the app?
import SwiftUI
struct Entry: View {
#State var anytext: String = ""
var body: some View {
VStack {
TextField("Enter text here", text: $anytext)
.padding()
.border(Color.black, width: 1)
.padding()
}
}
}
struct Entry_Previews: PreviewProvider {
static var previews: some View {
Entry()
}
}

Answer 1

Create & pass in an environment object at the root view of your app, or where any 'children' views may need access to anytext. Store anytext as a #Published property in that ObservedObject.
That's a pointer, but there will be lots of similar questions and stuff. Here is a HWS article which may help.
Here is an example:
class MyModel: ObservableObject {
#Published var anytext = ""
}
struct ContentView: View {
#StateObject private var model = MyModel()
var body: some View {
Entry().environmentObject(model)
}
}
struct Entry: View {
#EnvironmentObject private var model: MyModel
var body: some View {
VStack {
TextField("Enter text here", text: $model.anytext)
.padding()
.border(Color.black, width: 1)
.padding()
TextDisplayer()
}
}
}
struct TextDisplayer: View {
#EnvironmentObject private var model: MyModel
var body: some View {
Text(model.anytext)
}
}
Result:
All three views have model which they can access, to get the anytext property.
To answer your questions:
You use #Published because String, Float, Double etc are all value types.
Using environment objects, as shown here.
They are not persisted, see #AppStorage for saving that.