Blog: ObservableObjects and Protocols - Protocol with generic type in SwiftUI

blog--observableobject+protocols--observableobject-generic.swift

// Copyright 2021 Expedia, Inc.
// SPDX-License-Identifier: Apache-2.0

import SwiftUI

struct PriceView<PriceObservable>: View where PriceObservable: PriceRequesting {
    
    @ObservedObject var pricing: PriceObservable
    
    var body: some View {
        Group {
            if let price = pricing.price {
                Text(price.amount).bold() + Text(" \(price.description)").font(.system(size: 12))
            } else {
                Text("Price not available")
                    .italic()
                    .foregroundColor(.gray)
            }
        }
        .font(.system(size: 16))
    }
}