Add a version item to the navigation view footer

shell/android-studio/reicast/src/main/java/com/reicast/emulator/MainActivity.java

@@ -198,6 +198,17 @@ public class MainActivity extends AppCompatActivity implements
 				}
 			});
 		}
+
+		try {
+			String versionName = getPackageManager()
+					.getPackageInfo(getPackageName(), 0).versionName;
+			int versionCode = getPackageManager()
+					.getPackageInfo(getPackageName(), 0).versionCode;
+			((TextView) navigationView.findViewById(R.id.version)).setText(
+					getString(R.string.revision_text, versionName, String.valueOf(versionCode)));
+		} catch (PackageManager.NameNotFoundException e) {
+			e.printStackTrace();
+		}
 	}
 
 	public void generateErrorLog() {

shell/android-studio/reicast/src/main/res/layout/activity_main.xml

@@ -20,6 +20,22 @@
         android:layout_gravity="start"
         android:fitsSystemWindows="true"
         app:headerLayout="@layout/nav_header_main"
-        app:menu="@menu/activity_main"/>
+        app:menu="@menu/activity_main">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom"
+            android:orientation="vertical">
+
+            <TextView
+                android:id="@+id/version"
+                android:layout_width="match_parent"
+                android:layout_height="48dp"
+                android:gravity="center" />
+
+        </LinearLayout>
+
+    </android.support.design.widget.NavigationView>
 
 </android.support.v4.widget.DrawerLayout>