TABELA

app/src/main/java/com/example/vdcscore/ui/home/HomeFragment.java

@@ -10,6 +10,7 @@ import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
 
+import com.example.vdcscore.R;
 import com.example.vdcscore.databinding.FragmentHomeBinding;
 import com.google.firebase.database.DataSnapshot;
 import com.google.firebase.database.DatabaseError;
@@ -27,6 +28,8 @@ public class HomeFragment extends Fragment {
     private FragmentHomeBinding binding;
     private StandingsAdapter adapter;
     private DatabaseReference mDatabase;
+    private ValueEventListener mValueEventListener;
+    private String currentEscalao = "seniores";
 
     public View onCreateView(@NonNull LayoutInflater inflater,
             ViewGroup container, Bundle savedInstanceState) {
@@ -39,17 +42,33 @@ public class HomeFragment extends Fragment {
         binding.recyclerStandings.setLayoutManager(new LinearLayoutManager(getContext()));
         binding.recyclerStandings.setAdapter(adapter);
 
-        // Initialize Firebase
+        // Set up toggle listener
-        mDatabase = FirebaseDatabase.getInstance().getReference("standings");
+        binding.toggleGroupEscalao.addOnButtonCheckedListener((group, checkedId, isChecked) -> {
+            if (isChecked) {
+                if (checkedId == R.id.btnJuniores) {
+                    currentEscalao = "juniores";
+                } else if (checkedId == R.id.btnSeniores) {
+                    currentEscalao = "seniores";
+                }
+                fetchStandings();
+            }
+        });
 
-        // Fetch Data
+        // Fetch Data for default escalao
         fetchStandings();
 
         return root;
     }
 
     private void fetchStandings() {
-        mDatabase.addValueEventListener(new ValueEventListener() {
+        mDatabase = FirebaseDatabase.getInstance().getReference("standings").child(currentEscalao);
+
+        // Remove previous listener to avoid duplicate data or leaks
+        if (mValueEventListener != null) {
+            mDatabase.removeEventListener(mValueEventListener);
+        }
+
+        mValueEventListener = new ValueEventListener() {
             @Override
             public void onDataChange(@NonNull DataSnapshot snapshot) {
                 List<Team> teams = new ArrayList<>();
@@ -85,12 +104,17 @@ public class HomeFragment extends Fragment {
                             Toast.LENGTH_SHORT).show();
                 }
             }
-        });
+        };
+
+        mDatabase.addValueEventListener(mValueEventListener);
     }
 
     @Override
     public void onDestroyView() {
         super.onDestroyView();
+        if (mDatabase != null && mValueEventListener != null) {
+            mDatabase.removeEventListener(mValueEventListener);
+        }
         binding = null;
     }
 }

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

@@ -10,13 +10,38 @@
     tools:context=".ui.home.HomeFragment">
 
     <TextView
+        android:id="@+id/text_title"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="Classificação"
         android:textSize="28sp"
         android:textStyle="bold"
         android:textColor="@color/primary_color"
-        android:layout_marginBottom="24dp" />
+        android:layout_marginBottom="16dp" />
+
+    <com.google.android.material.button.MaterialButtonToggleGroup
+        android:id="@+id/toggleGroupEscalao"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        app:checkedButton="@id/btnSeniores"
+        android:gravity="center"
+        app:singleSelection="true">
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btnSeniores"
+            style="?attr/materialButtonOutlinedStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Seniores" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btnJuniores"
+            style="?attr/materialButtonOutlinedStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Juniores" />
+    </com.google.android.material.button.MaterialButtonToggleGroup>
 
     <!-- Table Header -->
     <LinearLayout