diff --git a/sample/src/main/res/layout/activity_main.xml b/sample/src/main/res/layout/activity_main.xml
index d66dffc..df34462 100644
--- a/sample/src/main/res/layout/activity_main.xml
+++ b/sample/src/main/res/layout/activity_main.xml
@@ -28,6 +28,20 @@
         android:layout_marginBottom="16dp"
         />
 
+    <android.support.design.widget.TextInputLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="16dp">
+
+        <EditText
+            android:id="@+id/plain_edit_tet"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Normal EditText"
+            />
+    </android.support.design.widget.TextInputLayout>
+
     <Button
         android:id="@+id/submit_button"
         android:layout_width="match_parent"