diff --git a/UI/JsApp/entry/src/main/js/default/common/item_000.png b/UI/JsApp/entry/src/main/js/default/common/item_000.png
new file mode 100644
index 0000000000000000000000000000000000000000..cf963d769f6a8d0768be96236239795c70666809
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diff --git a/UI/JsApp/entry/src/main/js/default/common/item_001.png b/UI/JsApp/entry/src/main/js/default/common/item_001.png
new file mode 100644
index 0000000000000000000000000000000000000000..6cd12c6d4eebca7adc2f5518607f95eb2b643724
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diff --git a/UI/JsApp/entry/src/main/js/default/common/item_003.png b/UI/JsApp/entry/src/main/js/default/common/item_003.png
new file mode 100644
index 0000000000000000000000000000000000000000..86bfb4697be2e0a445ec892281f52803694b9657
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diff --git a/UI/JsApp/screenshots/device/JsApplication1.png b/UI/JsApp/screenshots/device/JsApplication1.png
new file mode 100644
index 0000000000000000000000000000000000000000..4d45157af719703f47bda0d35e9f705b64912334
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diff --git a/UI/JsApp/screenshots/device/jsapplication.png b/UI/JsApp/screenshots/device/jsapplication.png
index 90f247c6ca96450ef1004da0162abee3e3c0cee8..8dd5fddf860a6d9b0886a93a9fe9465265f69e44 100644
Binary files a/UI/JsApp/screenshots/device/jsapplication.png and b/UI/JsApp/screenshots/device/jsapplication.png differ
diff --git a/ability/DataAbility/entry/src/main/java/ohos/samples/dataability/slice/MainAbilitySlice.java b/ability/DataAbility/entry/src/main/java/ohos/samples/dataability/slice/MainAbilitySlice.java
index cbd768a23605d3c9d7fde065e66ba448b9615e3f..432ae55821a655b16e6e7ed69f18ccb8b8f8c9b9 100644
--- a/ability/DataAbility/entry/src/main/java/ohos/samples/dataability/slice/MainAbilitySlice.java
+++ b/ability/DataAbility/entry/src/main/java/ohos/samples/dataability/slice/MainAbilitySlice.java
@@ -151,16 +151,18 @@ public class MainAbilitySlice extends AbilitySlice {
         try {
             ResultSet resultSet = databaseHelper.query(Uri.parse(Const.BASE_URI + Const.DATA_PATH), columns,
                 predicates);
-            if (resultSet.getRowCount() == 0) {
+            if (!resultSet.goToFirstRow()) {
                 HiLog.info(LABEL_LOG, "%{public}s", "query:No result found");
                 return;
             }
-            resultSet.goToFirstRow();
             logText.setText("");
+            int nameIndex = resultSet.getColumnIndexForName(Const.DB_COLUMN_NAME);
+            int ageIndex = resultSet.getColumnIndexForName(Const.DB_COLUMN_AGE);
+            int userIndex = resultSet.getColumnIndexForName(Const.DB_COLUMN_USER_ID);
             do {
-                String name = resultSet.getString(resultSet.getColumnIndexForName(Const.DB_COLUMN_NAME));
-                int age = resultSet.getInt(resultSet.getColumnIndexForName(Const.DB_COLUMN_AGE));
-                int userId = resultSet.getInt(resultSet.getColumnIndexForName(Const.DB_COLUMN_USER_ID));
+                String name = resultSet.getString(nameIndex);
+                int age = resultSet.getInt(ageIndex);
+                int userId = resultSet.getInt(userIndex);
                 logText.append(userId + "   " + name + "   " + age + System.lineSeparator());
             } while (resultSet.goToNextRow());
         } catch (DataAbilityRemoteException | IllegalStateException exception) {
diff --git a/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Homey.mp3 b/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Homey.mp3
new file mode 100644
index 0000000000000000000000000000000000000000..b4e53978f0080d6532574ba9ea313ee306be1465
Binary files /dev/null and b/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Homey.mp3 differ
diff --git a/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Technology.mp3 b/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Technology.mp3
new file mode 100644
index 0000000000000000000000000000000000000000..74122760bea998b603e9cddbdb5e14cb343af436
Binary files /dev/null and b/ability/DistributedMusicPlayer/entry/src/main/resources/rawfile/Technology.mp3 differ
diff --git a/media/Camera/entry/src/main/java/ohos/samples/camera/MainAbility.java b/media/Camera/entry/src/main/java/ohos/samples/camera/MainAbility.java
index 778fe6b4fe22fb8ceb6ec906f1717b8094d59fe0..df5006db77a417bdbae6902d7cf92b2115d8350c 100644
--- a/media/Camera/entry/src/main/java/ohos/samples/camera/MainAbility.java
+++ b/media/Camera/entry/src/main/java/ohos/samples/camera/MainAbility.java
@@ -15,8 +15,6 @@
 
 package ohos.samples.camera;
 
-import static ohos.bundle.IBundleManager.PERMISSION_GRANTED;
-
 import ohos.samples.camera.slice.MainAbilitySlice;
 
 import ohos.aafwk.ability.Ability;
@@ -56,7 +54,7 @@ public class MainAbility extends Ability {
             return;
         }
         for (int grantResult : grantResults) {
-            if (grantResult != PERMISSION_GRANTED) {
+            if (grantResult != IBundleManager.PERMISSION_GRANTED) {
                 terminateAbility();
                 break;
             }
diff --git a/media/Camera/entry/src/main/java/ohos/samples/camera/VideoRecordAbility.java b/media/Camera/entry/src/main/java/ohos/samples/camera/VideoRecordAbility.java
index 0b30d63b6fde64ba79177f0cb77dc41bb4715cc9..361f364aa46256b9806cd80c1af2225d4a9c1a90 100644
--- a/media/Camera/entry/src/main/java/ohos/samples/camera/VideoRecordAbility.java
+++ b/media/Camera/entry/src/main/java/ohos/samples/camera/VideoRecordAbility.java
@@ -160,6 +160,9 @@ public class VideoRecordAbility extends Ability {
 
     private void switchCamera(Component component) {
         isFrontCamera = !isFrontCamera;
+        if (cameraDevice != null) {
+            cameraDevice.release();
+        }
         updateComponentVisible(false);
         openCamera();
     }