Android studio Connect to Firebase

 

Make sure to call FirebaseApp.initializeApp(Context) first. Default FirebaseApp is not initialized in this process com.example.login

Default FirebaseApp is not initialized in this process com.example.taxibeta1. Make sure to call FirebaseApp.initializeApp(Context) first.

Setting:

1. under build.gradle

classpath 'com.google.gms:google-services:4.2.0'

2. under build.gradle

apply plugin: 'com.google.gms.google-services'

and Add

implementation 'com.google.firebase:firebase-storage:19.2.0'
implementation 'com.google.firebase:firebase-analytics:17.5.0'
implementation 'com.google.firebase:firebase-auth:19.4.0'
implementation 'com.google.firebase:firebase-firestore:21.7.0'

3. Error occurs Add  google-services.json

Check the error and see the path, the json file is downloaded in Firebase

4. Test code, you are able to connect Firebase

private void uploadImage(Bitmap bitmap) {

    FirebaseApp.initializeApp(this);
    FirebaseStorage storage = FirebaseStorage.getInstance("gs://savetostorage-451aa.appspot.com");
    StorageReference storageRef = storage.getReference("a.jpg");
    storageRef.getPath();
    storageRef.getName();

}

Reference:

https://stackoverflow.com/questions/55709341/make-sure-to-call-firebaseapp-initializeappcontext-first-default-firebaseapp

Upload file 

https://firebase.google.com/docs/storage/android/upload-files