How to delete a registered user by using firebase auth in android studio?

Question

I have created the Register method using firebase authentication user register method.

How to delete a registered user by using firebase auth and android studio?

private void registerUser(){
            String email = editTextEmail.getText().toString().trim();
            String password = editTextPassword.getText().toString().trim();


firebaseAuth.createUserWithEmailAndPassword(email,password)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>(){

                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if(task.isSuccessful()){
                        //user successfully registered and logged in
                        Toast.makeText(MainActivity.this, "Registered Successfully",Toast.LENGTH_SHORT).show();
                        progressDialog.dismiss();
                        finish();
                        startActivity(new Intent(getApplicationContext(),ProfileActivity.class));

                    }else{
                        Toast.makeText(MainActivity.this, "Could Not Register. Please Try Again Later",Toast.LENGTH_SHORT).show();
                        progressDialog.dismiss();
                    }
                }
            });

}
private void deleteUser(){

  // TODO: Fill this method

}

Answer 1

You can use delete() method to remove the desired user from the Firebase. Please use this code:

FirebaseUser firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
AuthCredential authCredential = EmailAuthProvider.getCredential("[email protected]", "password1234");

firebaseUser.reauthenticate(authCredential).addOnCompleteListener(new OnCompleteListener<Void>() {
    @Override
    public void onComplete(@NonNull Task<Void> task) {
        firebaseUser.delete().addOnCompleteListener(new OnCompleteListener<Void>() {
            @Override
            public void onComplete(@NonNull Task<Void> task) {
                if (task.isSuccessful()) {
                    Log.d(TAG, "User account deleted!");
                }
            }
        });
    }
});