#Java class #In this file we connect model class and viewholdw class to show in recyclerview public class AdminProductShow extends AppCompatActivity { private Query ProductsRef ; private RecyclerView recyclerView ; RecyclerView.LayoutManager layoutManager ; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout. activity_admin_product_show ); ProductsRef = FirebaseDatabase. getInstance ().getReference( "Products" ); recyclerView = findViewById(R.id. allProduct_recyclerview ); recyclerView .setHasFixedSize( true ); layoutManager = new LinearLayoutManager( this ); recyclerView .setLayoutManager( layoutManager ); } protected void onStart() { super .onStart(); final DatabaseReference AdminProductsRef = FirebaseDatabase. getInstance ().getReference( "Products" ); FirebaseRecycle...