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ObservableObject, @ObservedObject and @published
import SwiftUI
class Counter: ObservableObject {
@Published var count: Int
init(_ count: Int) {
self.count = count
}
func increment() {
count = count + 1
}
}
struct ContentView: View {
@ObservedObject var counter = Counter(0)
var body: some View {
VStack {
Text(String(counter.count))
Button("+ 1", action: { counter.increment() })
}.font(.system(size: 26))
}
}
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