fixing filter category

app/src/main/java/com/example/yourcashiertest/activities/MainActivity.java

@@ -10,11 +10,13 @@ import androidx.recyclerview.widget.LinearLayoutManager;
 import android.Manifest;
 
 import android.annotation.SuppressLint;
+import android.app.Application;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.TextWatcher;
+import android.util.Log;
 import android.widget.PopupMenu;
 import android.widget.Toast;
 
@@ -24,6 +26,7 @@ import com.example.yourcashiertest.adapters.ProductAdapter;
 import com.example.yourcashiertest.databinding.ActivityMainBinding;
 import com.example.yourcashiertest.entities.Cart;
 import com.example.yourcashiertest.entities.Product;
+import com.example.yourcashiertest.repositories.ProductRepository;
 import com.example.yourcashiertest.viewmodels.CartViewModel;
 import com.example.yourcashiertest.viewmodels.ProductViewModel;
 
@@ -118,16 +121,16 @@ public class MainActivity extends AppCompatActivity {
 
         binding.rvProducts.setAdapter(adapter);
         viewModel = new ViewModelProvider(this).get(ProductViewModel.class);
+        viewModel.getProducts().observe(this, adapter::setProducts);
+
         viewModel.getProducts().observe(this, products -> {
-            adapter.setProducts(products);
-            List<String> list = new ArrayList<>();
+            List<String> category = new ArrayList<>();
             for (int i = 0; i < products.size(); i++){
-                list.add(products.get(i).getCategory());
+                category.add(products.get(i).getCategory().toLowerCase());
             }
-            categoryAdapter.setCategories(list);
+            categoryAdapter.setCategories(category);
         });
-
-        categoryAdapter.setListener(category -> viewModel.filter(category));
+        categoryAdapter.setListener(category -> viewModel.filter(category.toLowerCase()));
 
         adapter.setListener(new ProductAdapter.ProductListener() {
             @Override

app/src/main/java/com/example/yourcashiertest/daos/ProductDao.java

@@ -17,6 +17,9 @@ public interface ProductDao {
     @Query("SELECT * FROM products ORDER BY id DESC")
     public LiveData<List<Product>> getProducts();
 
+//    @Query("SELECT category FROM products")
+//    public LiveData<List<Product>> getAllCategory();
+
     @Query("SELECT * FROM products WHERE name LIKE :query OR category LIKE:query ORDER BY id DESC")
     public LiveData<List<Product>> getFilteredProducts(String query);
 

app/src/main/java/com/example/yourcashiertest/repositories/ProductRepository.java

@@ -37,5 +37,6 @@ public class ProductRepository {
     public LiveData<List<Product>> filteredProducts(String s) {
         return productDao.getFilteredProducts(s);
     }
+
 }
 

app/src/main/java/com/example/yourcashiertest/viewmodels/ProductViewModel.java

@@ -19,7 +19,6 @@ public class ProductViewModel extends AndroidViewModel {
 
     private MutableLiveData<String> photo = new MutableLiveData<>("");
     private MutableLiveData<String> query = new MutableLiveData<>("%");
-    private MutableLiveData<String> category = new MutableLiveData<>("%");
     private MutableLiveData<Product> product = new MutableLiveData<>();
     private LiveData<List<Product>> products;