Firestore Tutorial Part 2 - SETTING UP FIREBASE & FIRST DOCUMENT - Android Studio Tutorial

In part 2 of the Firestore tutorial, we connect a new Android Studio project to Firebase with help of the Firebase assistant and add the Firestore dependency.
When that's done we upload our first document into our first collection, by retrieving the user input from 2 EditText fields, saving the input as strings in a HashMap together with their keys, and passing this HashMap to Firestore over a database reference that we get with the static Firestore getInstance method. For this we simply call the collection and document reference methods on our Firestore reference, pass strings for their names and lastly call the set method to pass our Map to this reference and set it as the fields on our first document.
We also add an OnSuccessListener and an OnFailureListener to have callbacks about the upload success.

Watch the whole playlist:
https://www.youtube.com/playlist?list=PLrnPJCHvNZuDrSqu-dKdDi3Q6nM-VUyxD

Firebase setup guide with dependencies and console link:
https://firebase.google.com/docs/android/setup

Code for this part:
https://gist.github.com/codinginflow/4624f98e7087746ba6b78acac4b01809

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