diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/AnimationManager.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/AnimationManager.java
index d68866bf00ad58103f0621a24725a15b1adf625c..29cb6758621556744c553b8df8f2b8b801f54257 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/AnimationManager.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/AnimationManager.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.turingtechnologies.materialscrollbardemo;
 
 import ohos.agp.animation.Animator;
diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Hand.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Hand.java
index 17ce67989f21eca68387e82826ec7d22030bbe12..4882b742e654f5f866d1bce484fac6cce00d8e0f 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Hand.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Hand.java
@@ -1,3 +1,19 @@
+/*
+ *  Copyright © 2016-2018, Turing Technologies, an unincorporated organisation of Wynne Plaga
+ *
+ *  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.turingtechnologies.materialscrollbardemo;
 
 import ohos.agp.components.Component;
diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Indicator.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Indicator.java
index b7abab73860d0427ca30ad568837335710d11dda..b1d6a5f94eba90a32a061d2463029d9b7f3648ba 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Indicator.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/Indicator.java
@@ -1,3 +1,19 @@
+/*
+ *  Copyright © 2016-2018, Turing Technologies, an unincorporated organisation of Wynne Plaga
+ *
+ *  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.turingtechnologies.materialscrollbardemo;
 
 import ohos.agp.colors.RgbColor;
diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/LayoutWrapContentUpdater.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/LayoutWrapContentUpdater.java
index 853d84651a623bbc383616e136ee41a8d645adc6..8971b615110181ce7a07b024dcdf5d226e6ae2c4 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/LayoutWrapContentUpdater.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/LayoutWrapContentUpdater.java
@@ -1,3 +1,5 @@
+
+
 package com.turingtechnologies.materialscrollbardemo;
 
 public class LayoutWrapContentUpdater implements ViewBehavior {
diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/MateriaScroller.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/MateriaScroller.java
index c03f17adcfa3a4bad903c1ee8f248d1a22c160a4..b6193fba8abb95656611db32a587aadfc55a56f6 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/MateriaScroller.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/MateriaScroller.java
@@ -1,3 +1,19 @@
+/*
+ *  Copyright © 2016-2018, Turing Technologies, an unincorporated organisation of Wynne Plaga
+ *
+ *  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.turingtechnologies.materialscrollbardemo;
 
 import ohos.agp.colors.RgbColor;
diff --git a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/ScrollingUtilities.java b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/ScrollingUtilities.java
index 984496b43553bb2ba73b5086a27b09d8f0f64234..911a7196b25de282b1e8238f0ec33d4a311b7ce7 100644
--- a/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/ScrollingUtilities.java
+++ b/lib/src/main/java/com/turingtechnologies/materialscrollbardemo/ScrollingUtilities.java
@@ -1,14 +1,17 @@
 /*
- * Copyright © 2016-2018, Turing Technologies, an unincorporated organisation of Wynne Plaga
- * 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.
+ *  Copyright © 2016-2018, Turing Technologies, an unincorporated organisation of Wynne Plaga
+ *
+ *  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.turingtechnologies.materialscrollbardemo;