相关疑难解决方法(0)

我没有收到来自诸如接口的任何回调addOnSuccessListener，addOnFailureListener，addOnCompleteListener。

依存关系：

        classpath 'com.google.gms:google-services:3.2.1'

        implementation 'com.google.firebase:firebase-firestore:16.0.0'
       // }
        apply plugin: 'com.google.gms.google-services'

码：

 firestore = FirebaseFirestore.getInstance(); // required for first time 
    FirebaseFirestoreSettings settings = new FirebaseFirestoreSettings.Builder()
            .setTimestampsInSnapshotsEnabled(true)
            .build();
    firestore.setFirestoreSettings(settings);

    final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Map<String, Object> user = new HashMap<>();
            user.put("Title", "Ada");
            user.put("category", "Lovelace");
            user.put("id", "123");

            firestore = FirebaseFirestore.getInstance();
            firestore.collection("quotes")
                    .add(user)
                    .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                        @Override
                        public void onSuccess(DocumentReference documentReference) {
                            Log.d("quotes", "DocumentSnapshot added with ID: …