add button added

app/src/main/java/com/example/dcav2gui/MainActivity.java

@@ -8,6 +8,7 @@ import androidx.navigation.Navigation;//
 import android.os.Bundle;
 import android.view.View;
 import android.view.Menu;
+import android.widget.Button;
 import android.widget.Toast;
 
 import com.example.dcav2gui.ui.home.HomeFragment;
@@ -33,6 +34,7 @@ public class MainActivity extends AppCompatActivity {
 
     private AppBarConfiguration mAppBarConfiguration;
     private ActivityMainBinding binding;
+    private Button addButton;
     public static SettingsData globalSettings;
     public HomeFragment.HomeCache homeViewCache;
     public static InstanceInterface.ExchangeStatsData binanceCache;
@@ -80,6 +82,7 @@ public class MainActivity extends AppCompatActivity {
         setContentView(binding.getRoot());
 
         setSupportActionBar(binding.appBarMain.toolbar);
+        addButton = findViewById(R.id.action_add);
 //        binding.appBarMain.fab.setOnClickListener(new View.OnClickListener() {
 //            @Override
 //            public void onClick(View view) {
@@ -112,6 +115,13 @@ public class MainActivity extends AppCompatActivity {
             Toast.makeText(this, "Please enter your credentials in the settings menu", Toast.LENGTH_LONG).show();
         }
 
+        navController.addOnDestinationChangedListener((controller, destination, arguments) -> {
+            if (destination.getId() == R.id.nav_home) {
+                addButton.setVisibility(View.GONE);
+            } else {
+                addButton.setVisibility(View.VISIBLE);
+            }
+        });
 
     }
 

app/src/main/java/com/example/dcav2gui/ui/exchanges/BinanceFragment.java

@@ -1,11 +1,14 @@
 // BinanceFragment.java
 package com.example.dcav2gui.ui.exchanges;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
@@ -56,6 +59,7 @@ public class BinanceFragment extends Fragment {
             }
         });
 
+
         return root;
     }
 

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

@@ -16,7 +16,19 @@
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="?attr/colorPrimary"
-            app:popupTheme="@style/Theme.DCAv2GUI.PopupOverlay" />
+            app:popupTheme="@style/Theme.DCAv2GUI.PopupOverlay">
+
+            <Button
+                android:id="@+id/action_add"
+                android:layout_width="60dp"
+                android:layout_height="80dp"
+                android:gravity="center_horizontal"
+                android:text="+"
+                android:textSize="20dp"
+                android:layout_gravity="end"
+                android:padding="10dp"/>
+
+        </androidx.appcompat.widget.Toolbar>
 
     </com.google.android.material.appbar.AppBarLayout>