Swipe to delete in favorite screen

app/src/main/java/com/capstone/foodify/Fragment/FavouriteFragment.java

@@ -1,20 +1,92 @@
 package com.capstone.foodify.Fragment;
 
+import android.graphics.Color;
 import android.os.Bundle;
 
+import androidx.core.widget.NestedScrollView;
 import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.DividerItemDecoration;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import com.capstone.foodify.ItemTouchHelperListener;
+import com.capstone.foodify.Model.Food.Food;
+import com.capstone.foodify.Model.Food.FoodFavoriteAdapter;
 import com.capstone.foodify.R;
+import com.capstone.foodify.RecyclerViewItemTouchHelper;
+import com.google.android.material.snackbar.Snackbar;
 
-public class FavouriteFragment extends Fragment {
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+public class FavouriteFragment extends Fragment implements ItemTouchHelperListener {
+
+    private RecyclerView recyclerView_favorite_food;
+    private FoodFavoriteAdapter adapter;
+    private List<Food> listFavoriteFood = new ArrayList<>();
+
+    private NestedScrollView listFavoriteFoodView;
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_favourite, container, false);
+        View rootView = inflater.inflate(R.layout.fragment_favourite, container, false);
+
+        recyclerView_favorite_food = rootView.findViewById(R.id.recycler_view_favorite_food);
+        listFavoriteFoodView = rootView.findViewById(R.id.list_favorite_food_view);
+
+        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
+        recyclerView_favorite_food.setLayoutManager(linearLayoutManager);
+
+        listFavoriteFood = getListFavoriteFood();
+        adapter = new FoodFavoriteAdapter(getListFavoriteFood());
+        recyclerView_favorite_food.setAdapter(adapter);
+
+        RecyclerView.ItemDecoration itemDecoration = new DividerItemDecoration(requireContext(), DividerItemDecoration.VERTICAL);
+        recyclerView_favorite_food.addItemDecoration(itemDecoration);
+
+        ItemTouchHelper.SimpleCallback simpleCallback = new RecyclerViewItemTouchHelper(0, ItemTouchHelper.LEFT, this);
+        new ItemTouchHelper(simpleCallback).attachToRecyclerView(recyclerView_favorite_food);
+        return rootView;
+    }
+
+    private List<Food> getListFavoriteFood() {
+        List<Food> listFoodTemp = new ArrayList<>();
+
+        for(int i = 1; i <= 20; i++){
+            listFoodTemp.add(new Food(String.valueOf(i), "https://cdn.netspace.edu.vn/images/2022/09/29/hoc-nau-mi-quang-1-1024.jpg", "Food "+ i, "25000", "Shop " + i));
+        }
+
+        return listFoodTemp;
+    }
+
+    @Override
+    public void onSwiped(RecyclerView.ViewHolder viewHolder) {
+        if(viewHolder instanceof FoodFavoriteAdapter.FoodFavoriteViewHolder){
+            String foodNameDelete = listFavoriteFood.get(viewHolder.getAdapterPosition()).getName();
+
+            Food foodDelete = listFavoriteFood.get(viewHolder.getAdapterPosition());
+            int indexDelete = viewHolder.getAdapterPosition();
+
+            //Remove Item
+            adapter.removeItem(indexDelete);
+
+            //Show notification food has been delete
+            Snackbar snackbar = Snackbar.make(listFavoriteFoodView, foodNameDelete + "remove!", Snackbar.LENGTH_LONG);
+            snackbar.setAction("Undo", new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    adapter.undoItem(foodDelete, indexDelete);
+                }
+            });
+            snackbar.setActionTextColor(Color.YELLOW);
+            snackbar.show();
+        }
     }
 }

app/src/main/java/com/capstone/foodify/ItemTouchHelperListener.java

@@ -0,0 +1,8 @@
+package com.capstone.foodify;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+public interface ItemTouchHelperListener {
+
+    void onSwiped(RecyclerView.ViewHolder viewHolder);
+}

app/src/main/java/com/capstone/foodify/Model/Food/Food.java

@@ -8,6 +8,7 @@ public class Food {
     private String discount;
     private String description;
 
+    private String shopName;
     private String reviewCount;
 
     public String getReviewCount() {
@@ -21,6 +22,14 @@ public class Food {
     public Food() {
     }
 
+    public Food(String id, String img, String name, String price, String shopName) {
+        this.id = id;
+        this.img = img;
+        this.name = name;
+        this.price = price;
+        this.shopName = shopName;
+    }
+
     public String getId() {
         return id;
     }
@@ -68,4 +77,11 @@ public class Food {
     public void setDescription(String description) {
         this.description = description;
     }
+    public String getShopName() {
+        return shopName;
+    }
+
+    public void setShopName(String shopName) {
+        this.shopName = shopName;
+    }
 }

app/src/main/java/com/capstone/foodify/Model/Food/FoodFavoriteAdapter.java

@@ -0,0 +1,81 @@
+package com.capstone.foodify.Model.Food;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.cardview.widget.CardView;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.capstone.foodify.R;
+import com.squareup.picasso.Picasso;
+
+import java.util.List;
+
+public class FoodFavoriteAdapter extends  RecyclerView.Adapter<FoodFavoriteAdapter.FoodFavoriteViewHolder> {
+
+    private List<Food> listFavoriteFood;
+
+    public FoodFavoriteAdapter(List<Food> listFavoriteFood) {
+        this.listFavoriteFood = listFavoriteFood;
+    }
+    @NonNull
+    @Override
+    public FoodFavoriteViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_food_favorite, parent, false);
+        return new FoodFavoriteViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull FoodFavoriteViewHolder holder, int position) {
+        Food food = listFavoriteFood.get(position);
+
+        if(food == null)
+            return;
+
+        holder.foodName.setText(food.getName());
+        holder.shopName.setText(food.getShopName());
+        holder.price.setText(food.getPrice());
+        Picasso.get().load(food.getImg()).into(holder.imageView);
+    }
+
+    @Override
+    public int getItemCount() {
+        if(listFavoriteFood != null)
+            return listFavoriteFood.size();
+
+        return 0;
+    }
+
+    public static class FoodFavoriteViewHolder extends RecyclerView.ViewHolder{
+
+        TextView foodName, shopName, price;
+        public LinearLayout layoutForeGround;
+        ImageView imageView;
+
+        public FoodFavoriteViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            foodName = itemView.findViewById(R.id.food_name_text_view);
+            shopName = itemView.findViewById(R.id.shop_name_text_view);
+            price = itemView.findViewById(R.id.price_text_view);
+            imageView = itemView.findViewById(R.id.image_view);
+
+            layoutForeGround = itemView.findViewById(R.id.layout_foreground);
+        }
+    }
+
+    public void removeItem(int index){
+        listFavoriteFood.remove(index);
+        notifyItemRemoved(index);
+    }
+
+    public void undoItem(Food food, int index){
+        listFavoriteFood.add(index, food);
+        notifyItemInserted(index);
+    }
+}

app/src/main/java/com/capstone/foodify/RecyclerViewItemTouchHelper.java

@@ -0,0 +1,60 @@
+package com.capstone.foodify;
+
+import android.graphics.Canvas;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.capstone.foodify.Model.Food.FoodFavoriteAdapter;
+
+public class RecyclerViewItemTouchHelper extends ItemTouchHelper.SimpleCallback{
+
+    private ItemTouchHelperListener listener;
+
+    public RecyclerViewItemTouchHelper(int dragDirs, int swipeDirs, ItemTouchHelperListener listener) {
+        super(dragDirs, swipeDirs);
+        this.listener = listener;
+    }
+
+    @Override
+    public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, @NonNull RecyclerView.ViewHolder target) {
+        return true;
+    }
+
+    @Override
+    public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction) {
+        if(listener != null)
+            listener.onSwiped(viewHolder);
+    }
+
+    @Override
+    public void onSelectedChanged(@Nullable RecyclerView.ViewHolder viewHolder, int actionState) {
+        if(viewHolder != null){
+            View foreGroundView = ((FoodFavoriteAdapter.FoodFavoriteViewHolder) viewHolder).layoutForeGround;
+            getDefaultUIUtil().onSelected(foreGroundView);
+        }
+
+    }
+
+    @Override
+    public void onChildDrawOver(@NonNull Canvas c, @NonNull RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
+        assert viewHolder != null;
+        View foreGroundView = ((FoodFavoriteAdapter.FoodFavoriteViewHolder) viewHolder).layoutForeGround;
+        getDefaultUIUtil().onDrawOver(c, recyclerView, foreGroundView, dX, dY, actionState, isCurrentlyActive);
+    }
+
+    @Override
+    public void onChildDraw(@NonNull Canvas c, @NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
+        View foreGroundView = ((FoodFavoriteAdapter.FoodFavoriteViewHolder) viewHolder).layoutForeGround;
+        getDefaultUIUtil().onDraw(c, recyclerView, foreGroundView, dX, dY, actionState, isCurrentlyActive);
+    }
+
+    @Override
+    public void clearView(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder) {
+        View foreGroundView = ((FoodFavoriteAdapter.FoodFavoriteViewHolder) viewHolder).layoutForeGround;
+        getDefaultUIUtil().clearView(foreGroundView);
+    }
+}