I have been able to save data in a Realm database, but have been unable to show the results in a SwiftUI List.
I know I have the data and have no problem printing the results in the console.
Is there a way to convert Realm Result into a format that can be displayed on a SwiftUI List?
import SwiftUI
import RealmSwift
import Combine
class Dog: Object {
@objc dynamic var name = ""
@objc dynamic var age = 0
override static func primaryKey() -> String? {
return "name"
}
}
class SaveDog {
func saveDog(name: String, age: String) {
let dog = Dog()
dog.age = Int(age)!
dog.name = name
// Get the default Realm
let realm = try! Realm()
print(Realm.Configuration.defaultConfiguration.fileURL!)
// Persist your data easily
try! realm.write {
realm.add(dog)
}
print(dog)
}
}
class RealmResults: BindableObject {
let didChange = PassthroughSubject<Void, Never>()
func getRealmResults() -> String{
let realm = try! Realm()
var results = realm.objects(Dog.self) { didSet
{didChange.send(())}}
print(results)
return results.first!.name
}
}
struct dogRow: View {
var dog = Dog()
var body: some View {
HStack {
Text(dog.name)
Text("\(dog.age)")
}
}
}
struct ContentView : View {
@State var dogName: String = ""
@State var dogAge: String = ""
let saveDog = SaveDog()
@ObjectBinding var savedResults = RealmResults()
let realm = try! Realm()
let dogs = Dog()
var body: some View {
VStack {
Text("Hello World")
TextField($dogName)
TextField($dogAge)
Button(action: {
self.saveDog.saveDog(name: self.dogName,
age:self.dogAge)
// self.savedResults.getRealmResults()
}) {
Text("Save")
}
//insert list here to show realm data
List(0 ..< 5) {
item in
Text(self.savedResults.getRealmResults())
} //Displays the same thing 5 times
}
}
}
#if DEBUG
struct ContentView_Previews : PreviewProvider {
static var previews: some View {
ContentView()
}
}
#endif
Some of the code probably may not make sense because I was attempting several approaches to see if anything would work.
This line, for example, will display the result in the List View.
return results.first!.name
If I just return results, nothing displays in the List Text View.
As I have commented below I will attempt the ForEach approach when I have time. That looks promising.
