iOS 14 Widgets + SwiftUI + Firebase?

Question

I\'m still pretty new to SwiftUI and Firebase. Recently, as a hobby, I have been developing an app for my school. After the launch of Xcode 12, I decided to experiment with

Answer 1

I can confirm after testing that the following method works to use Firebase in the Widget Target without incorporating an app group, user defaults or anything else.

@main
struct FirebaseStartupSequence: Widget {
  init() {
    FirebaseApp.configure()
  }

  let kind: String = "FirebaseStartupSequence"

  var body: some WidgetConfiguration {
    IntentConfiguration(kind: kind, intent: ConfigurationIntent.self, provider: Provider()) { entry in
      FirebaseStartupSequenceEntryView(entry: entry)
    }
    .configurationDisplayName("My Widget")
    .description("This is an example widget.")
  }
}

Simply use the init method in your widget to access a firebase instance.

This was the easiest solution for me as of today.

Taken from: https://github.com/firebase/firebase-ios-sdk/issues/6683

Additional Edit: Do you need to share authentication? No problem. Firebase has that covered here: https://firebase.google.com/docs/auth/ios/single-sign-on?authuser=1