A viewmodifier for SwiftUI to make handling multiple alerts in one view file much easier.

README.md

How To:

Just add a state to your view like this:

@State var alertData: AlertData? = nil

and add the modifier to your top view like this:

  .customAlert(data: $alertData)

Whenever you want to show an alert, you can do it like this:

self.alertData = AlertData(
    title: "Some Title",
    message: "Some important but optional message",
    actions: [
        AlertButton(title: "Say Yes!") {
            // do what to do here.
        },
        AlertButton(title: "Say No!", style: .cancel) {
            // do what to do here.
        }
    ]
)

CustomAlert.swift

import Foundation
import SwiftUI

struct AlertButton: Identifiable {
    var id: String {
        title
    }

    let title: String
    let style: ButtonRole?
    let action: (() -> Void)?
}

struct AlertData {
    let title: String
    let message: String?
    let actions: [AlertButton]
}

struct CustomAlertModifier: ViewModifier {

    @Binding var data: AlertData?

    func body(content: Content) -> some View {
        content
        .alert(
            data?.title ?? "",
            isPresented: Binding<Bool>(
                get: {
                    data != nil
                },
                set: { value in
                    data = value ? data : nil
                }
            ), presenting: data
        ) { data in
            ForEach(data.actions) { action in
                Button(role: action.style, action: action.action ?? { }) {
                    Text(action.title)
                }
            }
        } message: { data in
            if let message = data.message {
                Text(message)
            }
        }
    }
}

extension View {
    func customAlert(data: Binding<AlertData?>) -> some View {
        self.modifier(CustomAlertModifier(data: data))
    }
}