public void onStart()

in app/src/main/java/com/google/firebase/example/fireeats/MainActivity.java [135:151]


    public void onStart() {
        super.onStart();

        // Start sign in if necessary
        if (shouldStartSignIn()) {
            startSignIn();
            return;
        }

        // Apply filters
        onFilter(mViewModel.getFilters());

        // Start listening for Firestore updates
        if (mAdapter != null) {
            mAdapter.startListening();
        }
    }