diff --git a/FloatingViewLib/src/main/java/com/ufreedom/floatingview/Floating.java b/FloatingViewLib/src/main/java/com/ufreedom/floatingview/Floating.java
index 17152ffea12feec73bd508d5ed4bf6934c6a848c..59502b6560ecd216e7861592f84c690574b71775 100644
--- a/FloatingViewLib/src/main/java/com/ufreedom/floatingview/Floating.java
+++ b/FloatingViewLib/src/main/java/com/ufreedom/floatingview/Floating.java
@@ -21,13 +21,11 @@ import com.ufreedom.floatingview.transition.FloatingTransition;
 import com.ufreedom.floatingview.transition.YumFloating;
 import com.ufreedom.floatingview.util.LogUtil;
 import ohos.aafwk.ability.AbilitySlice;
-import ohos.agp.components.AttrSet;
 import ohos.agp.components.Component;
 import ohos.agp.components.ComponentContainer;
 import ohos.agp.components.LayoutScatter;
 import ohos.agp.components.StackLayout;
 import ohos.agp.utils.Rect;
-import ohos.app.Context;
 
 /**
  * Floating
@@ -38,7 +36,6 @@ import ohos.app.Context;
 public class Floating {
     private StackLayout mFloatingDecorView;
     private SpringSystem mSpringSystem;
-    private AbilitySlice mAbility;
 
     /**
      * Floating
@@ -48,11 +45,10 @@ public class Floating {
      * @throws NullPointerException Ability should not be null
      */
     public Floating(AbilitySlice ability, Component topComponent) {
-        this.mAbility = ability;
         if (ability == null) {
             throw new NullPointerException("Ability should not be null");
         }
-        mFloatingDecorView = new FloatingDecorView(ability);
+        mFloatingDecorView = new StackLayout(ability);
 
         mFloatingDecorView.setLayoutConfig(new StackLayout.LayoutConfig(StackLayout.LayoutConfig.MATCH_PARENT,
                 StackLayout.LayoutConfig.MATCH_PARENT));
@@ -111,44 +107,5 @@ public class Floating {
         floatingAnimator.applyFloating(new YumFloating(targetView, mSpringSystem));
         return mFloatingDecorView;
     }
-
-    /**
-     * FloatingDecorView
-     *
-     * @since 2021-04-23
-     */
-    public class FloatingDecorView extends StackLayout {
-
-        /**
-         * FloatingDecorView
-         *
-         * @param context
-         */
-        public FloatingDecorView(Context context) {
-            this(context, null);
-        }
-
-        /**
-         * FloatingDecorView
-         *
-         * @param context
-         * @param attrs
-         */
-        public FloatingDecorView(Context context, AttrSet attrs) {
-            this(context, attrs, null);
-        }
-
-        /**
-         * FloatingDecorView
-         *
-         * @param context
-         * @param attrs
-         * @param defStyle
-         */
-        public FloatingDecorView(Context context, AttrSet attrs, String defStyle) {
-            super(context, attrs, defStyle);
-        }
-    }
-
 }
 
diff --git a/FloatingViewLib/src/main/java/com/ufreedom/floatingview/util/LogUtil.java b/FloatingViewLib/src/main/java/com/ufreedom/floatingview/util/LogUtil.java
index 1ef568e267b56b5bffb8e50f892415b24739cb41..75e976e378547e3ad27b2b007d9c8c4541fc729c 100644
--- a/FloatingViewLib/src/main/java/com/ufreedom/floatingview/util/LogUtil.java
+++ b/FloatingViewLib/src/main/java/com/ufreedom/floatingview/util/LogUtil.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/FloatingViewLib/src/test/java/com/ufreedom/floatingview/ExampleTest.java b/FloatingViewLib/src/test/java/com/ufreedom/floatingview/ExampleTest.java
index 12f2cb57be4d02e4d30a8488de3584dad4c3896e..0a07e1b8b688a0ba6255741951b223947edfb158 100644
--- a/FloatingViewLib/src/test/java/com/ufreedom/floatingview/ExampleTest.java
+++ b/FloatingViewLib/src/test/java/com/ufreedom/floatingview/ExampleTest.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ufreedom/demo/MainAbility.java b/entry/src/main/java/com/ufreedom/demo/MainAbility.java
index ca27bdd4a7fcdb905830845fbef2ab9aa0834797..ed2f08ded74ad15b98b7f824f0d4706ebe8afe15 100644
--- a/entry/src/main/java/com/ufreedom/demo/MainAbility.java
+++ b/entry/src/main/java/com/ufreedom/demo/MainAbility.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ufreedom/demo/MyApplication.java b/entry/src/main/java/com/ufreedom/demo/MyApplication.java
index 1934fbd221f467d9eb9dc6e95d6eddbf467da31c..53fbbc29f3c53570d2d8355aac92ce6beae63dde 100644
--- a/entry/src/main/java/com/ufreedom/demo/MyApplication.java
+++ b/entry/src/main/java/com/ufreedom/demo/MyApplication.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ufreedom/demo/UiUtils.java b/entry/src/main/java/com/ufreedom/demo/UiUtils.java
index 3598700d7ea275b1731deac3ba6053aec3c3b744..afd04463bb9a41098aae6db70751894a8e3972e0 100644
--- a/entry/src/main/java/com/ufreedom/demo/UiUtils.java
+++ b/entry/src/main/java/com/ufreedom/demo/UiUtils.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ufreedom/demo/slice/MainAbilitySlice.java b/entry/src/main/java/com/ufreedom/demo/slice/MainAbilitySlice.java
index 09ade7edda87ed4a022ca9c557791c602ba60218..4008d725e497da8020acd0b44b11149e8156f0ae 100644
--- a/entry/src/main/java/com/ufreedom/demo/slice/MainAbilitySlice.java
+++ b/entry/src/main/java/com/ufreedom/demo/slice/MainAbilitySlice.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/main/java/com/ufreedom/demo/util/AnimatorStateChangedListener.java b/entry/src/main/java/com/ufreedom/demo/util/AnimatorStateChangedListener.java
index 86afb61543f467f08aa329446df9fc62f05ff232..be0032ce8afc12cc9a1548844f86ccbe97ee4628 100644
--- a/entry/src/main/java/com/ufreedom/demo/util/AnimatorStateChangedListener.java
+++ b/entry/src/main/java/com/ufreedom/demo/util/AnimatorStateChangedListener.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/ohosTest/java/com/ufreedom/demo/ExampleOhosTest.java b/entry/src/ohosTest/java/com/ufreedom/demo/ExampleOhosTest.java
index 62a3d0656adc2d18c5841651cfaca5fed469165e..0414719653e4b8f108c2ae0a3ac707b6e88b780c 100644
--- a/entry/src/ohosTest/java/com/ufreedom/demo/ExampleOhosTest.java
+++ b/entry/src/ohosTest/java/com/ufreedom/demo/ExampleOhosTest.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
diff --git a/entry/src/test/java/com/ufreedom/demo/ExampleTest.java b/entry/src/test/java/com/ufreedom/demo/ExampleTest.java
index a6ba95b3b7e1e52d41ba7e5c4ee91f0a4c5eaff5..c536f197728109072e689c1fa808c84bbeb1bd6c 100644
--- a/entry/src/test/java/com/ufreedom/demo/ExampleTest.java
+++ b/entry/src/test/java/com/ufreedom/demo/ExampleTest.java
@@ -2,7 +2,7 @@
  * 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 an copy of the License at
+ * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *