diff --git a/Sample/app/src/main/java/com/pureix/sample/MainActivity.java b/Sample/app/src/main/java/com/pureix/sample/MainActivity.java
index ee5ed74..f7a68d4 100644
--- a/Sample/app/src/main/java/com/pureix/sample/MainActivity.java
+++ b/Sample/app/src/main/java/com/pureix/sample/MainActivity.java
@@ -20,6 +20,11 @@ import com.pureix.encodinganddecodinglib.EncodingZxing;
 public class MainActivity extends AppCompatActivity
         implements NavigationView.OnNavigationItemSelectedListener {
 
+    private static final int QR_CODE = 0;
+    private static final int PDF_417 = 1;
+
+    private int currentEncoding = 0;
+
     ImageView imageView;
 
     @Override
@@ -35,11 +40,25 @@ public class MainActivity extends AppCompatActivity
         fab.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-//              imageView.setImageBitmap(EncodingZxing
-//                      .encodeToQrCode("Encoding with zxing", 500));
-
-                imageView.setImageBitmap(EncodingZxing
-                        .encodeToPDF417("Encoding with zxing", 500, Color.BLACK, Color.WHITE));
+                switch (currentEncoding) {
+                    case QR_CODE:
+                    {
+                        imageView.setImageBitmap(EncodingZxing
+                                .encodeToQrCode("Encoding with zxing", 500));
+                        break;
+                    }
+                    case PDF_417:
+                    {
+                        imageView.setImageBitmap(EncodingZxing
+                                .encodeToPDF417("Encoding with zxing", 500, Color.BLACK, Color.WHITE));
+                        break;
+                    }
+                    default:
+                    {
+                        Snackbar.make(view, "Error", Snackbar.LENGTH_LONG)
+                                .setAction("Action", null).show();
+                    }
+                }
 
                 Snackbar.make(view, "Done", Snackbar.LENGTH_LONG)
                         .setAction("Action", null).show();
@@ -94,18 +113,14 @@ public class MainActivity extends AppCompatActivity
         // Handle navigation view item clicks here.
         int id = item.getItemId();
 
-        if (id == R.id.nav_camera) {
-            // Handle the camera action
-        } else if (id == R.id.nav_gallery) {
-
+        if (id == R.id.navQrCode) {
+            currentEncoding = QR_CODE;
+        } else if (id == R.id.navPDF417) {
+            currentEncoding = PDF_417;
         } else if (id == R.id.nav_slideshow) {
 
         } else if (id == R.id.nav_manage) {
 
-        } else if (id == R.id.nav_share) {
-
-        } else if (id == R.id.nav_send) {
-
         }
 
         DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
diff --git a/Sample/app/src/main/res/menu/activity_main_drawer.xml b/Sample/app/src/main/res/menu/activity_main_drawer.xml
index 2a7f467..846b34c 100644
--- a/Sample/app/src/main/res/menu/activity_main_drawer.xml
+++ b/Sample/app/src/main/res/menu/activity_main_drawer.xml
@@ -3,24 +3,24 @@
 
     <group android:checkableBehavior="single">
         <item
-            android:id="@+id/nav_camera"
-            android:icon="@drawable/ic_menu_camera"
-            android:title="Import" />
+            android:id="@+id/navQrCode"
+            android:icon="@android:drawable/ic_dialog_dialer"
+            android:title="QR Code" />
         <item
-            android:id="@+id/nav_gallery"
-            android:icon="@drawable/ic_menu_gallery"
-            android:title="Gallery" />
+            android:id="@+id/navPDF417"
+            android:icon="@android:drawable/ic_dialog_dialer"
+            android:title="PDF 417" />
         <item
             android:id="@+id/nav_slideshow"
-            android:icon="@drawable/ic_menu_slideshow"
+            android:icon="@android:drawable/ic_dialog_dialer"
             android:title="Slideshow" />
         <item
             android:id="@+id/nav_manage"
-            android:icon="@drawable/ic_menu_manage"
+            android:icon="@android:drawable/ic_dialog_dialer"
             android:title="Tools" />
     </group>
 
-    <item android:title="Communicate">
+    <!--<item android:title="Communicate">
         <menu>
             <item
                 android:id="@+id/nav_share"
@@ -31,6 +31,6 @@
                 android:icon="@drawable/ic_menu_send"
                 android:title="Send" />
         </menu>
-    </item>
+    </item>-->
 
 </menu>