diff --git a/APED/app/src/main/java/com/example/aped/MainActivity.java b/APED/app/src/main/java/com/example/aped/MainActivity.java
index dfee235..012c67e 100644
--- a/APED/app/src/main/java/com/example/aped/MainActivity.java
+++ b/APED/app/src/main/java/com/example/aped/MainActivity.java
@@ -1,13 +1,17 @@
 package com.example.aped;
 
 import android.os.Bundle;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.Menu;
+import android.widget.Button;
+import android.widget.Toast;
 
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.navigation.NavigationView;
 
+import androidx.annotation.NonNull;
 import androidx.navigation.NavController;
 import androidx.navigation.Navigation;
 import androidx.navigation.ui.AppBarConfiguration;
@@ -38,6 +42,7 @@ public class MainActivity extends AppCompatActivity {
         NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
         NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
         NavigationUI.setupWithNavController(navigationView, navController);
+
     }
 
     @Override
@@ -53,4 +58,25 @@ public class MainActivity extends AppCompatActivity {
         return NavigationUI.navigateUp(navController, mAppBarConfiguration)
                 || super.onSupportNavigateUp();
     }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        switch (item.getItemId()){
+            case R.id.action_settings:
+                Toast.makeText(this,"settings",Toast.LENGTH_SHORT).show();
+                return true;
+            case R.id.action_adjust_xml:
+                Toast.makeText(this,"adjust",Toast.LENGTH_SHORT).show();
+                return true;
+            case R.id.action_download_xml:
+                Toast.makeText(this,"download",Toast.LENGTH_SHORT).show();
+                return true;
+            case R.id.action_upload_xml:
+                Toast.makeText(this,"upload",Toast.LENGTH_SHORT).show();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+
+    }
 }
\ No newline at end of file
diff --git a/APED/app/src/main/res/menu/main.xml b/APED/app/src/main/res/menu/main.xml
index 1cf67f5..637a796 100644
--- a/APED/app/src/main/res/menu/main.xml
+++ b/APED/app/src/main/res/menu/main.xml
@@ -3,22 +3,22 @@
     xmlns:app="http://schemas.android.com/apk/res-auto">
     <item
         android:id="@+id/action_settings"
-        android:orderInCategory="100"
+        android:orderInCategory="0"
         android:title="@string/action_settings"
         app:showAsAction="never" />
     <item
         android:id="@+id/action_adjust_xml"
-        android:orderInCategory="100"
+        android:orderInCategory="1"
         android:title="@string/action_adjust_xml"
         app:showAsAction="never" />
     <item
-        android:id="@+id/download_adjust_xml"
-        android:orderInCategory="100"
+        android:id="@+id/action_download_xml"
+        android:orderInCategory="2"
         android:title="@string/action_download_xml"
         app:showAsAction="never" />
     <item
         android:id="@+id/action_upload_xml"
-        android:orderInCategory="100"
+        android:orderInCategory="3"
         android:title="@string/action_upload_xml"
         app:showAsAction="never" />
 </menu>
\ No newline at end of file