diff --git a/entry/src/main/java/com/simplecityapps/recyclerview_fastscroll/sample/PagerAdapter.java b/entry/src/main/java/com/simplecityapps/recyclerview_fastscroll/sample/PagerAdapter.java
index 3edf152c64e85e6cb2973b58d953c24b5f543a9f..b21808c81b8b040f023e5746d751a8993a70d41b 100644
--- a/entry/src/main/java/com/simplecityapps/recyclerview_fastscroll/sample/PagerAdapter.java
+++ b/entry/src/main/java/com/simplecityapps/recyclerview_fastscroll/sample/PagerAdapter.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2021 Huawei Device Co., Ltd.
+ * 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.
+ */
+
 package com.simplecityapps.recyclerview_fastscroll.sample;
 
 import com.simplecityapps.recyclerview_fastscroll.views.FastScrollRecyclerView;
diff --git a/recyclerview_fastscroll/src/main/java/com/simplecityapps/recyclerview_fastscroll/views/RecyclerView.java b/recyclerview_fastscroll/src/main/java/com/simplecityapps/recyclerview_fastscroll/views/RecyclerView.java
index bb2692a002208fa78c294972063d2fdbdebb2939..ec861c2e25742877982219e05da1cb127eee578a 100644
--- a/recyclerview_fastscroll/src/main/java/com/simplecityapps/recyclerview_fastscroll/views/RecyclerView.java
+++ b/recyclerview_fastscroll/src/main/java/com/simplecityapps/recyclerview_fastscroll/views/RecyclerView.java
@@ -1,3 +1,17 @@
+/*
+ * Copyright (C) 2021 Huawei Device Co., Ltd.
+ * 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.
+ */
 package com.simplecityapps.recyclerview_fastscroll.views;
 
 import ohos.agp.components.*;