[Solved] SwiftUI – how to observe(.sink/ .onReceive) PassthroughSubject inside a View [closed]

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If you have a Struct as Model or ViewModel and you need to update your SwiftUI View here it is how to do just that with SwiftUI + Combine.

import Combine

struct ViewModel {

    var textChangedPublisher: AnyPublisher<String, Never> {
        textChangedSubject.eraseToAnyPublisher()
    }
    private let textChangedSubject = PassthroughSubject<String, Never>()

    func triggerUpdate() {
        let newStr = DateFormatter().string(from: Date())
        textChangedSubject.send(newStr)
    }

}

And a screen:

import SwiftUI

struct ContentView: View {
    
    private let vieModel = ViewModel()
    @State private var title = "Let's start"
    
    var body: some View {
        VStack {
            Text(title)
            Button.init("Show cuurent date") {
                vieModel.triggerUpdate()
            }
            .onReceive(vieModel.textChangedPublisher) { newValue in
                title = newValue
            }
        }
        .padding()
    }
}

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solved SwiftUI – how to observe(.sink/ .onReceive) PassthroughSubject inside a View [closed]