diff --git a/app/src/main/java/com/imangazaliev/circlemenu/sample/MainActivity.java b/app/src/main/java/com/imangazaliev/circlemenu/sample/MainActivity.java
index 3ad539a..07abb3d 100644
--- a/app/src/main/java/com/imangazaliev/circlemenu/sample/MainActivity.java
+++ b/app/src/main/java/com/imangazaliev/circlemenu/sample/MainActivity.java
@@ -15,7 +15,7 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        CircleMenu circleMenu = (CircleMenu) findViewById(R.id.circleMenu);
+        CircleMenu circleMenu = (CircleMenu) findViewById(R.id.circle_menu);
         circleMenu.setOnItemClickListener(new CircleMenu.OnItemClickListener() {
             @Override
             public void onItemClick(CircleMenuButton menuButton) {
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index c947692..eaad489 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -2,15 +2,13 @@
                 xmlns:app="http://schemas.android.com/apk/res-auto"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:background="#212121"
-    >
+                android:background="#212121">
 
     <com.imangazaliev.circlemenu.CircleMenu
-        android:id="@+id/circleMenu"
+        android:id="@+id/circle_menu"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_centerInParent="true"
-        >
+        android:layout_centerInParent="true">
 
         <com.imangazaliev.circlemenu.CircleMenuButton
             android:id="@+id/favorite"
@@ -18,8 +16,7 @@
             android:layout_height="wrap_content"
             app:colorNormal="#2196F3"
             app:colorPressed="#1E88E5"
-            app:icon="@drawable/ic_favorite"
-            />
+            app:icon="@drawable/ic_favorite" />
 
         <com.imangazaliev.circlemenu.CircleMenuButton
             android:id="@+id/search"
@@ -52,6 +49,7 @@
             app:colorNormal="#FF9800"
             app:colorPressed="#FB8C00"
             app:icon="@drawable/ic_edit"/>
+
     </com.imangazaliev.circlemenu.CircleMenu>
 
 </RelativeLayout>
diff --git a/library/src/main/res/animator/close_to_menu.xml b/library/src/main/res/animator/close_to_menu.xml
index d27ee44..a6ae4f0 100644
--- a/library/src/main/res/animator/close_to_menu.xml
+++ b/library/src/main/res/animator/close_to_menu.xml
@@ -1,18 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2016. André Mion
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:ordering="sequentially">
 
diff --git a/library/src/main/res/animator/menu_to_close.xml b/library/src/main/res/animator/menu_to_close.xml
index f590b36..81358bb 100644
--- a/library/src/main/res/animator/menu_to_close.xml
+++ b/library/src/main/res/animator/menu_to_close.xml
@@ -1,18 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2016. André Mion
-
-     Licensed under the Apache License, Version 2.0 (the "License");
-     you may not use this file except in compliance with the License.
-     You may obtain a copy of the License at
-
-          http://www.apache.org/licenses/LICENSE-2.0
-
-     Unless required by applicable law or agreed to in writing, software
-     distributed under the License is distributed on an "AS IS" BASIS,
-     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     See the License for the specific language governing permissions and
-     limitations under the License.
--->
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:ordering="sequentially">