Fix show discount price + Add message from server to User

Foodify/app/src/main/java/com/waterbase/foodify/Cart.java

@@ -357,7 +357,7 @@ public class Cart extends AppCompatActivity implements GoogleApiClient.Connectio
         //Calculate total price
         float total = 0;
         for (Order order : cart)
-            total += (Float.parseFloat(order.getPrice())) * (Float.parseFloat(order.getQuantity()));
+            total += (Float.parseFloat(order.getPrice())) * (Float.parseFloat(order.getQuantity())) * (100 - Long.parseLong(order.getDiscount()))/100;;
         Locale locale = new Locale("vi", "VN");
         NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
 

Foodify/app/src/main/java/com/waterbase/foodify/Common/Common.java

@@ -12,6 +12,8 @@ import com.waterbase.foodify.Remote.RetrofitClient;
 public class Common {
     public static User currentUser;
 
+    public static String topicName = "News";
+
     private static final String BASE_URL = "https://fcm.googleapis.com/";
     private static final String GOOGLE_API_URL = "https://maps.googleapis.com/";
 

Foodify/app/src/main/java/com/waterbase/foodify/Database/Database.java

@@ -66,21 +66,21 @@ public class Database extends SQLiteAssetHelper {
     }
 
     //Favorites
-    public void addToFavorites(String foodId) {
+    public void addToFavorites(String foodId, String userPhone) {
         SQLiteDatabase db = getReadableDatabase();
-        String query = String.format("INSERT INTO Favorites(FoodId) VALUES('%s');", foodId);
+        String query = String.format("INSERT INTO Favorites(FoodId,UserPhone) VALUES('%s', '%s');", foodId, userPhone);
         db.execSQL(query);
     }
 
-    public void removeFromFavorites(String foodId) {
+    public void removeFromFavorites(String foodId, String userPhone) {
         SQLiteDatabase db = getReadableDatabase();
-        String query = String.format("DELETE FROM Favorites WHERE FoodId='%s';", foodId);
+        String query = String.format("DELETE FROM Favorites WHERE FoodId='%s' and UserPhone='%s';", foodId, userPhone);
         db.execSQL(query);
     }
 
-    public boolean isFavorite(String foodId) {
+    public boolean isFavorite(String foodId, String userPhone) {
         SQLiteDatabase db = getReadableDatabase();
-        String query = String.format("SELECT * FROM Favorites WHERE FoodId='%s'", foodId);
+        String query = String.format("SELECT * FROM Favorites WHERE FoodId='%s' and UserPhone='%s'", foodId, userPhone);
         Cursor cursor = db.rawQuery(query, null);
         if (cursor.getCount() <= 0) {
             cursor.close();

Foodify/app/src/main/java/com/waterbase/foodify/FoodList.java

@@ -11,7 +11,10 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.text.Editable;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
 import android.text.TextWatcher;
+import android.text.style.StrikethroughSpan;
 import android.view.LayoutInflater;
 import android.view.MenuItem;
 import android.view.View;
@@ -273,7 +276,25 @@ public class FoodList extends AppCompatActivity {
             @Override
             protected void onBindViewHolder(@NonNull FoodViewHolder viewHolder, int position, @NonNull Food model) {
                 viewHolder.food_name.setText(model.getName());
-                viewHolder.food_price.setText(String.format("%s đ", model.getPrice()));
+
+                if(Integer.parseInt(model.getDiscount()) > 0)
+                {
+                    String foodPrice = model.getPrice() + "đ";
+                    long newFoodPrice = Long.parseLong(model.getPrice()) - Long.parseLong(model.getPrice())* Long.parseLong(model.getDiscount())/100;
+                    SpannableStringBuilder spnBuilder = new SpannableStringBuilder(foodPrice);
+                    StrikethroughSpan strikethroughSpan = new StrikethroughSpan();
+                    spnBuilder.setSpan(strikethroughSpan, 0, foodPrice.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+                    viewHolder.food_price.setText(spnBuilder);
+                    viewHolder.newPrice.setText(newFoodPrice+"đ");
+                } else
+                {
+                    viewHolder.food_price.setText(String.format("%s đ", model.getPrice()));
+                    viewHolder.discount.setVisibility(View.GONE);
+                    viewHolder.newPrice.setVisibility(View.GONE);
+                }
+
+
+                viewHolder.discount.setText("- " + model.getDiscount() + "%");
                 Picasso.with(getBaseContext()).load(model.getImage()).into(viewHolder.food_image);
 
                 //Quick Cart
@@ -293,20 +314,21 @@ public class FoodList extends AppCompatActivity {
                     }
                 });
 
+
                 //Add Favorites
-                if(localDB.isFavorite(adapter.getRef(position).getKey()))
+                if(localDB.isFavorite(adapter.getRef(position).getKey(),Common.currentUser.getPhone()))
                     viewHolder.fav_image.setImageResource(R.drawable.ic_baseline_favorite_24);
 
                 //Click to change state of Favorites
                 viewHolder.fav_image.setOnClickListener(new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
-                        if(!localDB.isFavorite(adapter.getRef(viewHolder.getAdapterPosition()).getKey())){
+                        if(!localDB.isFavorite(adapter.getRef(viewHolder.getAdapterPosition()).getKey(), Common.currentUser.getPhone())){
-                            localDB.addToFavorites(adapter.getRef(viewHolder.getAdapterPosition()).getKey());
+                            localDB.addToFavorites(adapter.getRef(viewHolder.getAdapterPosition()).getKey(), Common.currentUser.getPhone());
                             viewHolder.fav_image.setImageResource(R.drawable.ic_baseline_favorite_24);
                             Toast.makeText(FoodList.this, model.getName() + " đã thêm vào danh sách yêu thích", Toast.LENGTH_SHORT).show();
                         } else {
-                            localDB.removeFromFavorites(adapter.getRef(viewHolder.getAdapterPosition()).getKey());
+                            localDB.removeFromFavorites(adapter.getRef(viewHolder.getAdapterPosition()).getKey(), Common.currentUser.getPhone());
                             viewHolder.fav_image.setImageResource(R.drawable.ic_baseline_favorite_border_24);
                             Toast.makeText(FoodList.this, model.getName() + " đã xoá khỏi danh sách yêu thích", Toast.LENGTH_SHORT).show();
                         }

Foodify/app/src/main/java/com/waterbase/foodify/Home.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -11,6 +12,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.AnimationUtils;
 import android.view.animation.LayoutAnimationController;
+import android.widget.CheckBox;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -43,6 +45,7 @@ import com.google.firebase.database.DatabaseReference;
 import com.google.firebase.database.FirebaseDatabase;
 import com.google.firebase.database.ValueEventListener;
 import com.google.firebase.iid.FirebaseInstanceId;
+import com.google.firebase.messaging.FirebaseMessaging;
 import com.rengwuxian.materialedittext.MaterialEditText;
 import com.squareup.picasso.Picasso;
 import com.waterbase.foodify.Common.Common;
@@ -321,6 +324,8 @@ public class Home extends AppCompatActivity implements NavigationView.OnNavigati
             showChangePasswordDialog();
         } else if (id == R.id.nav_home_address) {
             showHomeAddressDialog();
+        } else if (id == R.id.nav_setting) {
+            showSettingDialog();
         }
         else if (id == R.id.nav_log_out) {
 
@@ -340,6 +345,47 @@ public class Home extends AppCompatActivity implements NavigationView.OnNavigati
         return true;
     }
 
+    private void showSettingDialog() {
+        AlertDialog.Builder alertDialog = new AlertDialog.Builder(Home.this);
+        alertDialog.setTitle("Cài đặt");
+
+        LayoutInflater inflater = LayoutInflater.from(this);
+        View layout_setting = inflater.inflate(R.layout.setting_layout, null);
+
+        CheckBox ckb_subscribe_new = layout_setting.findViewById(R.id.ckb_sub_new);
+        //Add code remember state of Checkbox
+        Paper.init(this);
+        String isSubscribe = Paper.book().read("sub_new");
+        if(isSubscribe == null || TextUtils.isEmpty(isSubscribe) || isSubscribe.equals("false"))
+            ckb_subscribe_new.setChecked(false);
+        else
+            ckb_subscribe_new.setChecked(true);
+
+        alertDialog.setView(layout_setting);
+
+        alertDialog.setPositiveButton("Xong", new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                dialog.dismiss();
+
+                if(ckb_subscribe_new.isChecked())
+                {
+                    FirebaseMessaging.getInstance().subscribeToTopic(Common.topicName);
+                    //Write value
+                    Paper.book().write("sub_new", "true");
+                }
+                else
+                {
+                    FirebaseMessaging.getInstance().unsubscribeFromTopic(Common.topicName);
+                    //Write value
+                    Paper.book().write("sub_new", "false");
+                }
+            }
+        });
+
+        alertDialog.show();
+    }
+
     private void showHomeAddressDialog() {
         AlertDialog.Builder alertDialog = new AlertDialog.Builder(Home.this);
         alertDialog.setTitle("Đặt địa chỉ mặc định");

Foodify/app/src/main/java/com/waterbase/foodify/Service/MyFirebaseIdService.java

@@ -17,9 +17,11 @@ public class MyFirebaseIdService extends FirebaseInstanceIdService {
     }
 
     private void updateTokenToFirebase(String tokenRefreshed) {
-        FirebaseDatabase db = FirebaseDatabase.getInstance();
+        if (Common.currentUser != null) {
-        DatabaseReference tokens = db.getReference("Tokens");
+            FirebaseDatabase db = FirebaseDatabase.getInstance();
-        Token token = new Token(tokenRefreshed, false);
+            DatabaseReference tokens = db.getReference("Tokens");
-        tokens.child(Common.currentUser.getPhone()).setValue(token);
+            Token token = new Token(tokenRefreshed, false);
+            tokens.child(Common.currentUser.getPhone()).setValue(token);
+        }
     }
 }

Foodify/app/src/main/java/com/waterbase/foodify/ViewHolder/CartAdapter.java

@@ -31,7 +31,7 @@ import java.util.Locale;
 
 class CartViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnCreateContextMenuListener {
 
-    public TextView txt_card_item, txt_price;
+    public TextView txt_card_item, txt_price, txtDiscount;
     public ElegantNumberButton btn_quantity;
     public ImageView cart_image;
 
@@ -45,6 +45,7 @@ class CartViewHolder extends RecyclerView.ViewHolder implements View.OnClickList
         super(itemView);
         txt_card_item = (TextView) itemView.findViewById(R.id.cart_item_name);
         txt_price = (TextView) itemView.findViewById(R.id.cart_item_Price);
+        txtDiscount = (TextView) itemView.findViewById(R.id.txtDiscount);
         btn_quantity = (ElegantNumberButton) itemView.findViewById(R.id.btn_quantity);
         cart_image = (ImageView) itemView.findViewById(R.id.cart_image);
 
@@ -102,10 +103,10 @@ public class CartAdapter extends RecyclerView.Adapter<CartViewHolder>{
                 float total = 0;
                 List<Order> orders = new Database(cart).getCarts();
                 for (Order item : orders)
-                    total += (Float.parseFloat(order.getPrice())) * (Float.parseFloat(item.getQuantity()));
+                    total += (Float.parseFloat(item.getPrice())) * (Float.parseFloat(item.getQuantity())) * (100 - Long.parseLong(item.getDiscount()))/100;
                 Locale locale = new Locale("vi", "VN");
                 NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
-                float price = newValue*(Float.parseFloat(order.getPrice()));
+                float price = newValue*(Float.parseFloat(order.getPrice())) * (100 - Long.parseLong(order.getDiscount()))/100;
                 holder.txt_price.setText(fmt.format(price));
 
                 cart.txtTotalPrice.setText(fmt.format(total));
@@ -114,8 +115,13 @@ public class CartAdapter extends RecyclerView.Adapter<CartViewHolder>{
 
         Locale locale = new Locale("vi", "VN");
         NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
-        float price = (Float.parseFloat(listData.get(position).getPrice()))*(Float.parseFloat(listData.get(position).getQuantity()));
+        float price = (Float.parseFloat(listData.get(position).getPrice()))*(Float.parseFloat(listData.get(position).getQuantity())) * (100 - Long.parseLong(listData.get(position).getDiscount()))/100;
         holder.txt_price.setText(fmt.format(price));
+        if(Integer.parseInt(listData.get(position).getDiscount()) > 0)
+        {
+            holder.txtDiscount.setVisibility(View.VISIBLE);
+            holder.txtDiscount.setText("-" + listData.get(position).getDiscount() + "%");
+        }
 
         holder.txt_card_item.setText(listData.get(position).getProductName());
     }

Foodify/app/src/main/java/com/waterbase/foodify/ViewHolder/FoodViewHolder.java

@@ -12,7 +12,7 @@ import com.waterbase.foodify.R;
 
 public class FoodViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
 
-    public TextView food_name, food_price;
+    public TextView food_name, food_price, discount, newPrice;
     public ImageView food_image, fav_image, quick_cart;
 
     private ItemClickListener itemClickListener;
@@ -28,6 +28,8 @@ public class FoodViewHolder extends RecyclerView.ViewHolder implements View.OnCl
         food_image = (ImageView) itemView.findViewById(R.id.food_image);
         fav_image = (ImageView) itemView.findViewById(R.id.fav);
         food_price = (TextView) itemView.findViewById(R.id.food_price);
+        discount = (TextView) itemView.findViewById(R.id.discount);
+        newPrice = (TextView) itemView.findViewById(R.id.new_Price);
         quick_cart = (ImageView) itemView.findViewById(R.id.btn_quick_cart);
 
         itemView.setOnClickListener(this);

Foodify/app/src/main/res/drawable/ic_baseline_settings_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    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="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.8,11.69 4.8,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

Foodify/app/src/main/res/layout/cart_layout.xml

@@ -38,16 +38,28 @@
                 android:text="Food 01"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" />
+                <TextView
+                    android:id="@+id/cart_item_Price"
+                    android:layout_marginLeft="10dp"
+                    android:gravity="center_vertical|start"
+                    android:textAllCaps="true"
+                    android:textStyle="italic"
+                    android:text="100,000"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content" />
+
+                <TextView
+                    android:id="@+id/txtDiscount"
+                    android:layout_marginLeft="10dp"
+                    android:textAllCaps="true"
+                    android:textStyle="italic"
+                    android:textSize="10sp"
+                    android:visibility="gone"
+                    android:textColor="@color/red"
+                    android:text="-50%"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content" />
 
-            <TextView
-                android:id="@+id/cart_item_Price"
-                android:layout_marginLeft="10dp"
-                android:gravity="center_vertical|start"
-                android:textAllCaps="true"
-                android:textStyle="italic"
-                android:text="100,000"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content" />
         </LinearLayout>
 
         <com.cepheuen.elegantnumberbutton.view.ElegantNumberButton

Foodify/app/src/main/res/layout/food_item.xml

@@ -18,6 +18,7 @@
 
         <ImageView
             android:id="@+id/food_image"
+            android:src="@drawable/bg4"
             android:layout_width="match_parent"
             android:layout_height="0dp"
             android:layout_weight="4"
@@ -63,6 +64,27 @@
                 android:text="$100"
                 android:textSize="20sp" />
 
+            <TextView
+                android:id="@+id/discount"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="14dp"
+                android:layout_marginLeft="30dp"
+                android:layout_toEndOf="@+id/food_price"
+                android:text="$100"
+                android:textColor="@color/red"
+                android:textSize="10sp" />
+
+            <TextView
+                android:id="@+id/new_Price"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginLeft="5dp"
+                android:layout_toEndOf="@+id/discount"
+                android:textStyle="bold"
+                android:text="$100"
+                android:textSize="25sp" />
+
             <ImageView
                 android:id="@+id/btn_quick_cart"
                 android:src="@drawable/ic_baseline_shopping_cart_24"

Foodify/app/src/main/res/layout/home_address_layout.xml

@@ -14,7 +14,7 @@
 
         <com.rengwuxian.materialedittext.MaterialEditText
             android:id="@+id/edtHomeAddress"
-            android:hint="Home Address"
+            android:hint="Địa chỉ mặc định"
             android:inputType="textMultiLine"
             android:textColor="@color/purple_500"
             android:textColorHint="@color/purple_500"

Foodify/app/src/main/res/layout/setting_layout.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.cardview.widget.CardView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="8dp"
+    app:cardElevation="4dp"
+    >
+
+    <LinearLayout
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="16dp"
+        android:orientation="horizontal"
+        android:layout_gravity="center_vertical"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <CheckBox
+            android:id="@+id/ckb_sub_new"
+            android:text="Nhận thông báo từ hệ thống"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            />
+
+    </LinearLayout>
+
+</androidx.cardview.widget.CardView>

Foodify/app/src/main/res/menu/activity_main_drawer.xml

@@ -25,6 +25,12 @@
             android:title="Đổi mật khẩu"
             android:iconTint="@color/white"
             />
+        <item
+            android:id="@+id/nav_setting"
+            android:icon="@drawable/ic_baseline_settings_24"
+            android:title="Cài đặt"
+            android:iconTint="@color/white"
+            />
         <item
             android:id="@+id/nav_log_out"
             android:icon="@drawable/ic_baseline_exit_to_app_24"

Foodify/app/src/main/res/values/colors.xml

@@ -17,4 +17,5 @@
 
     <color name="overlayBackground">#7f333639</color>
     <color name="overlayActionBar">#0e0d0e</color>
+    <color name="red">#FA0202</color>
 </resources>

FoodifyServer/app/src/main/AndroidManifest.xml

@@ -16,6 +16,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.FoodifyServer"
         tools:targetApi="31">
+        <activity
+            android:name=".SendMessage"
+            android:exported="false" />
         <activity
             android:name=".BannerActivity"
             android:exported="false" />

FoodifyServer/app/src/main/java/com/waterbase/foodifyServer/Common/Common.java

@@ -16,6 +16,8 @@ public class Common {
     public static User currentUser;
     public static Request currentRequest;
 
+    public static String topicName = "News";
+
     public static final String UPDATE = "Cập nhật";
     public static final String DELETE = "Xoá";
     public static final int PICK_IMAGE_REQUEST = 71;

FoodifyServer/app/src/main/java/com/waterbase/foodifyServer/Home.java

@@ -301,6 +301,9 @@ public class Home extends AppCompatActivity implements NavigationView.OnNavigati
         } else if(id == R.id.nav_banner) {
             Intent banner = new Intent(Home.this, BannerActivity.class);
             startActivity(banner);
+        } else if(id == R.id.nav_message) {
+            Intent banner = new Intent(Home.this, SendMessage.class);
+            startActivity(banner);
         }
 
         DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

FoodifyServer/app/src/main/java/com/waterbase/foodifyServer/Model/Sender.java

@@ -4,8 +4,27 @@ public class Sender {
     public String to;
     public Notification notification;
 
+    public Sender() {
+    }
+
     public Sender(String to, Notification notification) {
         this.to = to;
         this.notification = notification;
     }
+
+    public String getTo() {
+        return to;
+    }
+
+    public void setTo(String to) {
+        this.to = to;
+    }
+
+    public Notification getNotification() {
+        return notification;
+    }
+
+    public void setNotification(Notification notification) {
+        this.notification = notification;
+    }
 }

FoodifyServer/app/src/main/java/com/waterbase/foodifyServer/SendMessage.java

@@ -0,0 +1,65 @@
+package com.waterbase.foodifyServer;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Toast;
+
+import com.rengwuxian.materialedittext.MaterialEditText;
+import com.waterbase.foodifyServer.Common.Common;
+import com.waterbase.foodifyServer.Model.MyResponse;
+import com.waterbase.foodifyServer.Model.Notification;
+import com.waterbase.foodifyServer.Model.Sender;
+import com.waterbase.foodifyServer.Remote.APIService;
+
+import info.hoang8f.widget.FButton;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class SendMessage extends AppCompatActivity {
+
+    MaterialEditText edtMessage, edtTitle;
+    FButton btnSend;
+
+    APIService mService;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_send_message);
+
+        mService = Common.getFCMClient();
+
+        edtMessage = findViewById(R.id.edtMessage);
+        edtTitle = findViewById(R.id.edtTitle);
+
+        btnSend = findViewById(R.id.btnSend);
+        btnSend.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                //Create message
+                Notification notification = new Notification(edtTitle.getText().toString(), edtMessage.getText().toString());
+
+                Sender toTopic = new Sender();
+                toTopic.to = new StringBuilder("/topics/").append(Common.topicName).toString();
+                toTopic.notification = notification;
+                
+                mService.sendNotification(toTopic)
+                        .enqueue(new Callback<MyResponse>() {
+                            @Override
+                            public void onResponse(Call<MyResponse> call, Response<MyResponse> response) {
+                                if(response.isSuccessful())
+                                    Toast.makeText(SendMessage.this, "Thông báo đã gửi đến người dùng!", Toast.LENGTH_SHORT).show();
+                            }
+
+                            @Override
+                            public void onFailure(Call<MyResponse> call, Throwable t) {
+                                Toast.makeText(SendMessage.this, "" + t.getMessage(), Toast.LENGTH_SHORT).show();
+                            }
+                        });
+            }
+        });
+    }
+}

FoodifyServer/app/src/main/java/com/waterbase/foodifyServer/Service/MyFirebaseIdService.java

@@ -17,9 +17,11 @@ public class MyFirebaseIdService extends FirebaseInstanceIdService {
     }
 
     private void updateToServer(String refreshedToken) {
-        FirebaseDatabase db = FirebaseDatabase.getInstance();
+        if (Common.currentUser != null) {
-        DatabaseReference tokens = db.getReference("Tokens");
+            FirebaseDatabase db = FirebaseDatabase.getInstance();
-        Token data = new Token(refreshedToken, true);
+            DatabaseReference tokens = db.getReference("Tokens");
-        tokens.child(Common.currentUser.getPhone()).setValue(data);
+            Token data = new Token(refreshedToken, true);
+            tokens.child(Common.currentUser.getPhone()).setValue(data);
+        }
     }
 }

FoodifyServer/app/src/main/res/drawable/ic_baseline_message_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    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="M20,2L4,2c-1.1,0 -1.99,0.9 -1.99,2L2,22l4,-4h14c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM18,14L6,14v-2h12v2zM18,11L6,11L6,9h12v2zM18,8L6,8L6,6h12v2z"/>
+</vector>

FoodifyServer/app/src/main/res/layout/activity_send_message.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/background"
+    tools:context=".SendMessage">
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_marginLeft="8dp"
+        android:layout_marginRight="8dp"
+        android:layout_centerInParent="true"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.rengwuxian.materialedittext.MaterialEditText
+            android:id="@+id/edtTitle"
+            android:hint="Tiêu đề"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textColorHint="@color/white"
+            android:textSize="34sp"
+            android:inputType="text"
+            app:met_baseColor="@color/white"
+            app:met_floatingLabel="highlight"
+            app:met_primaryColor="@color/white"
+            app:met_singleLineEllipsis="true"
+            />
+
+        <com.rengwuxian.materialedittext.MaterialEditText
+            android:id="@+id/edtMessage"
+            android:hint="Nội dung"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textColorHint="@color/white"
+            android:textColor="@color/white"
+            android:textSize="34sp"
+            android:inputType="textMultiLine"
+            app:met_baseColor="@color/white"
+            app:met_floatingLabel="highlight"
+            app:met_primaryColor="@color/white"
+            app:met_singleLineEllipsis="true"
+            />
+
+    </LinearLayout>
+
+    <info.hoang8f.widget.FButton
+        android:id="@+id/btnSend"
+        android:text="Gửi thông báo"
+        android:textColor="@color/white"
+        android:layout_marginRight="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_alignParentBottom="true"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        app:fButtonColor="@color/btnSignActive"
+        app:shadowColor="@color/black"
+        app:shadowEnabled="true"
+        app:shadowHeight="5dp"
+        app:cornerRadius="4dp"
+        />
+
+</RelativeLayout>

FoodifyServer/app/src/main/res/menu/activity_main_drawer.xml

@@ -8,6 +8,10 @@
             android:id="@+id/nav_banner"
             android:icon="@drawable/ic_baseline_laptop_24"
             android:title="Banner" />
+        <item
+            android:id="@+id/nav_message"
+            android:icon="@drawable/ic_baseline_message_24"
+            android:title="Thông báo" />
         <item
             android:id="@+id/nav_cart"
             android:icon="@drawable/ic_baseline_shopping_cart_24"