crud product

app/src/main/java/com/example/yourcashiertest/adapters/ProductAdapter.java

 package com.example.yourcashiertest.adapters;
 
-public class ProductAdapter {
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.example.yourcashiertest.R;
+import com.example.yourcashiertest.databinding.ItemListBinding;
+import com.example.yourcashiertest.entities.Product;
+
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ViewHolder> {
+
+    private List<Product> products = new ArrayList<>();
+
+    public interface ProductListener {
+        void onUpdate(Product product);
+
+        void onDelete(Product product);
+    }
+
+    private ProductListener listener;
+
+    public void setListener(ProductListener listener) {
+        this.listener = listener;
+    }
+
+    public void setProducts(List<Product> products) {
+        this.products = products;
+
+        notifyDataSetChanged();
+    }
+
+    @NonNull
+    @Override
+    public ProductAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new ViewHolder(
+                DataBindingUtil.inflate(
+                        LayoutInflater.from(parent.getContext()),
+                        R.layout.item_product,
+                        parent,
+                        false
+                )
+        );
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ProductAdapter.ViewHolder holder, int position) {
+        holder.bindData(products.get(position), listener);
+    }
+
+    @Override
+    public int getItemCount() {
+        return products.size();
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        private ItemListBinding binding;
+
+        public ViewHolder(@NonNull ItemListBinding binding) {
+            super(binding.getRoot());
+
+            this.binding = binding;
+        }
+
+        public void bindData(Product product, ProductListener listener) {
+            binding.setProduct(product);
+
+            DecimalFormat rupiah = (DecimalFormat) DecimalFormat.getCurrencyInstance();
+            DecimalFormatSymbols format = new DecimalFormatSymbols();
+
+            format.setCurrencySymbol("Rp. ");
+            format.setMonetaryDecimalSeparator(',');
+            format.setGroupingSeparator('.');
+
+            rupiah.setDecimalFormatSymbols(format);
+
+            binding.setPrice(rupiah.format(product.getPrice()));
+
+            binding.ivUpdate.setOnClickListener(view -> listener.onUpdate(product));
+            binding.ivDelete.setOnClickListener(view -> listener.onDelete(product));
+        }
+    }
 }
\ No newline at end of file

app/src/main/java/com/example/yourcashiertest/databases/LocalDatabase.java

 package com.example.yourcashiertest.databases;
 
-public class LocalDatabase {
+import android.content.Context;
 
+import androidx.annotation.NonNull;
+import androidx.room.Database;
+import androidx.room.DatabaseConfiguration;
+import androidx.room.InvalidationTracker;
+import androidx.room.Room;
+import androidx.room.RoomDatabase;
+import androidx.sqlite.db.SupportSQLiteOpenHelper;
 
+import com.example.yourcashiertest.daos.ProductDao;
+import com.example.yourcashiertest.entities.Product;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+@Database(entities = {Product.class}, version = 1, exportSchema = false)
+public abstract class LocalDatabase extends RoomDatabase {
+
+    public abstract ProductDao productDao();
+
+    private static volatile LocalDatabase INSTANCE;
+    private static final int NUMBER_OF_THREADS = 4;
+
+    public static final ExecutorService databaseWriteExecutor =
+            Executors.newFixedThreadPool(NUMBER_OF_THREADS);
+
+    public static LocalDatabase getDatabase(Context context) {
+        if (INSTANCE == null) {
+            synchronized (LocalDatabase.class) {
+                if (INSTANCE == null) {
+                    INSTANCE = Room.databaseBuilder(context.getApplicationContext(),
+                            LocalDatabase.class, "pasarindo_database")
+                            .build();
+                }
+            }
+        }
+        return INSTANCE;
+    }
+
+    @NonNull
+    @Override
+    protected SupportSQLiteOpenHelper createOpenHelper(DatabaseConfiguration config) {
+        return null;
+    }
+
+    @NonNull
+    @Override
+    protected InvalidationTracker createInvalidationTracker() {
+        return null;
+    }
+
+    @Override
+    public void clearAllTables() {
+
+    }
 }
\ No newline at end of file

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

 package com.example.yourcashiertest.repositories;
 
+import android.app.Application;
+
+import androidx.lifecycle.LiveData;
+
+import com.example.yourcashiertest.daos.ProductDao;
+import com.example.yourcashiertest.databases.LocalDatabase;
+import com.example.yourcashiertest.entities.Product;
+
+import java.util.List;
+
 public class ProductRepository {
+    private ProductDao productDao;
+    private LiveData<List<Product>> products;
+
+    public ProductRepository(Application application) {
+        LocalDatabase db = LocalDatabase.getDatabase(application);
+
+        productDao = db.productDao();
+
+        products = productDao.getProducts();
+    }
+
+    public void insert(Product product) {
+        LocalDatabase.databaseWriteExecutor.execute(() -> productDao.insertProduct(product));
+    }
+
+    public void update(Product product) {
+        LocalDatabase.databaseWriteExecutor.execute(() -> productDao.updateProduct(product));
+    }
+
+    public void delete(Product product) {
+        LocalDatabase.databaseWriteExecutor.execute(() -> productDao.deleteProduct(product));
+    }
+
+    public LiveData<List<Product>> filteredProducts(String s) {
+        return productDao.getFilteredProducts(s);
+    }
 }
+

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

 package com.example.yourcashiertest.viewmodels;
 
-public class ProductViewModel {
+import android.app.Application;
+import android.text.TextUtils;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.Transformations;
+
+import com.example.yourcashiertest.entities.Product;
+import com.example.yourcashiertest.repositories.ProductRepository;
+
+import java.io.File;
+import java.util.List;
+
+public class ProductViewModel extends AndroidViewModel {
+
+    private MutableLiveData<String> photo = new MutableLiveData<>("");
+    private MutableLiveData<String> query = new MutableLiveData<>("%");
+    private MutableLiveData<Product> product = new MutableLiveData<>();
+    private LiveData<List<Product>> products;
+
+    private ProductRepository repository;
+
+    public void setPhoto(String photo) {
+        this.photo.setValue(photo);
+    }
+
+    public void setProduct(Product product) {
+        this.product.setValue(product);
+    }
+
+    public LiveData<String> getPhoto() {
+        return photo;
+    }
+
+    public LiveData<List<Product>> getProducts() {
+        return products;
+    }
+
+    public ProductViewModel(@NonNull Application application) {
+        super(application);
+
+        repository = new ProductRepository(application);
+
+        products = Transformations.switchMap(query, s -> repository.filteredProducts(s));
+    }
+
+    public void filter(String s) {
+        String query = TextUtils.isEmpty(s) ? "%" : "%" + s + "%";
+        this.query.postValue(query);
+    }
+
+    public void insertProduct(Product product) {
+        repository.insert(product);
+    }
+
+    public void updateProduct(Product product) {
+        repository.update(product);
+    }
+
+    public void deleteProduct(Product product) {
+        File photo = new File(product.getPhoto());
+
+        if (photo.exists() && photo.delete())
+            System.out.println("DELETED: " + product.getPhoto());
+
+        repository.delete(product);
+    }
+
+    public MutableLiveData<Product> getProduct() {
+        return product;
+    }
 }
\ No newline at end of file

app/src/main/res/drawable/ic_baseline_add_shopping_cart_24.xml

+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M11,9h2L13,6h3L16,4h-3L13,1h-2v3L8,4v2h3v3zM7,18c-1.1,0 -1.99,0.9 -1.99,2S5.9,22 7,22s2,-0.9 2,-2 -0.9,-2 -2,-2zM17,18c-1.1,0 -1.99,0.9 -1.99,2s0.89,2 1.99,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM7.17,14.75l0.03,-0.12 0.9,-1.63h7.45c0.75,0 1.41,-0.41 1.75,-1.03l3.86,-7.01L19.42,4h-0.01l-1.1,2 -2.76,5L8.53,11l-0.13,-0.27L6.16,6l-0.95,-2 -0.94,-2L1,2v2h2l3.6,7.59 -1.35,2.45c-0.16,0.28 -0.25,0.61 -0.25,0.96 0,1.1 0.9,2 2,2h12v-2L7.42,15c-0.13,0 -0.25,-0.11 -0.25,-0.25z"/>
+</vector>

app/src/main/res/drawable/ic_delete.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="380"
+    android:viewportHeight="384">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M64,341.333C64,364.907 83.093,384 106.667,384h170.667C300.907,384 320,364.907 320,341.333v-256H64V341.333z" />
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M266.667,21.333l-21.334,-21.333l-106.666,0l-21.334,21.333l-74.666,0l0,42.667l298.666,0l0,-42.667z" />
+</vector>

app/src/main/res/drawable/ic_update.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="348.882"
+    android:viewportHeight="348.882">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M333.988,11.758l-0.42,-0.383C325.538,4.04 315.129,0 304.258,0c-12.187,0 -23.888,5.159 -32.104,14.153L116.803,184.231c-1.416,1.55 -2.49,3.379 -3.154,5.37l-18.267,54.762c-2.112,6.331 -1.052,13.333 2.835,18.729c3.918,5.438 10.23,8.685 16.886,8.685c0,0 0.001,0 0.001,0c2.879,0 5.693,-0.592 8.362,-1.76l52.89,-23.138c1.923,-0.841 3.648,-2.076 5.063,-3.626L336.771,73.176C352.937,55.479 351.69,27.929 333.988,11.758zM130.381,234.247l10.719,-32.134l0.904,-0.99l20.316,18.556l-0.904,0.99L130.381,234.247zM314.621,52.943L182.553,197.53l-20.316,-18.556L294.305,34.386c2.583,-2.828 6.118,-4.386 9.954,-4.386c3.365,0 6.588,1.252 9.082,3.53l0.419,0.383C319.244,38.922 319.63,47.459 314.621,52.943z" />
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M303.85,138.388c-8.284,0 -15,6.716 -15,15v127.347c0,21.034 -17.113,38.147 -38.147,38.147H68.904c-21.035,0 -38.147,-17.113 -38.147,-38.147V100.413c0,-21.034 17.113,-38.147 38.147,-38.147h131.587c8.284,0 15,-6.716 15,-15s-6.716,-15 -15,-15H68.904c-37.577,0 -68.147,30.571 -68.147,68.147v180.321c0,37.576 30.571,68.147 68.147,68.147h181.798c37.576,0 68.147,-30.571 68.147,-68.147V153.388C318.85,145.104 312.134,138.388 303.85,138.388z" />
+</vector>

app/src/main/res/layout/item_list.xml

@@ -25,23 +25,46 @@
 
             <ImageView
                 android:id="@+id/iv_product"
-                android:layout_width="wrap_content"
+                android:adjustViewBounds="true"
+                android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:background="@drawable/elips"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintHorizontal_bias="0.452"
+                app:layout_constraintHorizontal_bias="0.526"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toTopOf="parent"
-                app:layout_constraintVertical_bias="0.026"
-                tools:srcCompat="@tools:sample/avatars" />
+                app:layout_constraintVertical_bias="0.075"
+                android:src="@drawable/burger"/>
+
+            <ImageView
+                android:id="@+id/ivUpdate"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:padding="@dimen/space_small"
+                android:src="@drawable/ic_update"
+                app:layout_constraintBottom_toBottomOf="@+id/iv_product"
+                app:layout_constraintStart_toStartOf="@+id/iv_product"
+                app:layout_constraintTop_toTopOf="@+id/iv_product"
+                app:layout_constraintVertical_bias="0.0" />
+
+            <ImageView
+                android:id="@+id/ivDelete"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentEnd="true"
+                android:padding="@dimen/space_small"
+                android:src="@drawable/ic_delete"
+                app:layout_constraintBottom_toBottomOf="@+id/iv_product"
+                app:layout_constraintEnd_toEndOf="@+id/iv_product"
+                app:layout_constraintTop_toTopOf="@+id/iv_product"
+                app:layout_constraintVertical_bias="0.0" />
 
             <TextView
                 android:id="@+id/tv_name"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:text="@string/name"
-                android:layout_margin="20dp"
+                android:layout_margin="10dp"
                 android:textStyle="bold"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
@@ -67,15 +90,15 @@
                 android:id="@+id/tv_price"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="@string/price"
                 android:layout_marginTop="3dp"
+                android:text="@string/price"
                 android:textStyle="bold"
                 app:layout_constraintBottom_toBottomOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintHorizontal_bias="0.055"
-                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintHorizontal_bias="0.0"
+                app:layout_constraintStart_toStartOf="@+id/tv_desc"
                 app:layout_constraintTop_toBottomOf="@+id/tv_desc"
-                app:layout_constraintVertical_bias="0.038" />
+                app:layout_constraintVertical_bias="0.37" />
 
             <View
                 android:id="@+id/v_add"
@@ -97,7 +120,7 @@
                 app:layout_constraintEnd_toEndOf="@+id/v_add"
                 app:layout_constraintStart_toStartOf="@+id/v_add"
                 app:layout_constraintTop_toTopOf="@+id/v_add"
-                app:srcCompat="@drawable/ic_baseline_add_24" />
+                app:srcCompat="@drawable/ic_baseline_add_shopping_cart_24" />
 
 
         </androidx.constraintlayout.widget.ConstraintLayout>