diff --git a/app/build.gradle b/app/build.gradle
index 8e3e5c3d321f908a9ab6b50ad6d08e9979c0aa1a..b6e54db0c7ea0f380226c3f205b8ea7fc2a32534 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -73,7 +73,7 @@ dependencies {
     implementation 'com.github.bumptech.glide:glide:4.13.0'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.14.0'
     implementation 'com.hyman:flowlayout-lib:1.1.2'
-    implementation 'com.github.Petterpx:FloatingX:1.3.1'
+    implementation 'com.github.Petterpx:FloatingX:1.3.3'
     implementation 'com.android.support:design:28.0.0'
     implementation 'com.github.Justson.AgentWeb:agentweb-core:v5.0.6-androidx'
     implementation project(':cloudphone')
diff --git a/app/src/main/java/com/huawei/cloudapp/common/CasState.java b/app/src/main/java/com/huawei/cloudapp/common/CasState.java
index 80cacb411c4885d3803a371fcfa10d7907dcb52c..5839fffe5da7984175cf7e4400317c8f43cf89d1 100644
--- a/app/src/main/java/com/huawei/cloudapp/common/CasState.java
+++ b/app/src/main/java/com/huawei/cloudapp/common/CasState.java
@@ -54,5 +54,6 @@ public class CasState {
     static public final int CAS_SWITCH_BACKGROUND_ERROR = 0x1301;
     static public final int CAS_SWITCH_FOREGROUND_SUCCESS = 0x1400;
     static public final int CAS_EXIT = 0x1700;
+    static public final int CAS_BACK_HOME = 0x1900;
     static public final int CAS_INVALID_CMD = 0xFFFF;
 }
diff --git a/app/src/main/java/com/huawei/cloudapp/ui/CasCloudPhoneActivity.java b/app/src/main/java/com/huawei/cloudapp/ui/CasCloudPhoneActivity.java
index 15ebf22c114071e821fd1377e82eaea656806fa8..60ed5e2b69fc7503d4d3b86438a313fdf1bcd8a2 100644
--- a/app/src/main/java/com/huawei/cloudapp/ui/CasCloudPhoneActivity.java
+++ b/app/src/main/java/com/huawei/cloudapp/ui/CasCloudPhoneActivity.java
@@ -519,6 +519,10 @@ public class CasCloudPhoneActivity extends FragmentActivity implements View.OnCl
             case CasState.CAS_NOTOUCH_TIMEOUT:
                 showDialog(getResources().getString(R.string.cas_notouch_timeout_tip_message));
                 break;
+            case CasState.CAS_BACK_HOME:
+                CASLog.i(TAG, "back home");
+                showUiLevelDialog();
+                break;
             default:
                 break;
         }
@@ -672,7 +676,6 @@ public class CasCloudPhoneActivity extends FragmentActivity implements View.OnCl
                 ctrView.setVisibility(View.GONE);
                 return true;
             }
-            showUiLevelDialog();
             return true;
         } else if (keyCode == KeyEvent.KEYCODE_APP_SWITCH) {
             return true;
diff --git a/cloudphone/src/main/cpp/CasCommon.h b/cloudphone/src/main/cpp/CasCommon.h
index b6f9d2964d78c89567bff1e82af92b48f8c21502..840f9b69ae9e1ebfd4e17d1b43ce6aaab10bc979 100644
--- a/cloudphone/src/main/cpp/CasCommon.h
+++ b/cloudphone/src/main/cpp/CasCommon.h
@@ -83,7 +83,8 @@ enum {
     CAS_SWITCH_FOREGROUND_ERROR         = 0x1501,
 
     CAS_ORIENTATION                     = 0x1600,
-    CAS_EXIT                       = 0x1700
+    CAS_EXIT                       = 0x1700,
+    CAS_BACK_HOME                       = 0x1900,
 };
 
 const int CAS_THREAD_RUNNING = 1;
diff --git a/cloudphone/src/main/cpp/cas_service/CasTouch.cpp b/cloudphone/src/main/cpp/cas_service/CasTouch.cpp
index ca182ec00c4edd23da1f1c02385a46ae3e654984..549c8c5d3e49b14949e5072c69e30ed15a0bbe6e 100644
--- a/cloudphone/src/main/cpp/cas_service/CasTouch.cpp
+++ b/cloudphone/src/main/cpp/cas_service/CasTouch.cpp
@@ -59,8 +59,8 @@ bool CasTouch::SendTouchEvent(int id, int action, int x, int y, int pressure, in
 bool CasTouch::SendKeyEvent(uint16_t keycode, uint16_t action)
 {
     CasKeyEventMsg keyEventMsg { 0, 0 };
-    keyEventMsg.keycode = keycode;
-    keyEventMsg.action = action;
+    keyEventMsg.keycode = (unsigned short) htons(keycode);
+    keyEventMsg.action = (unsigned short) htons(action);
 
     if (m_streamBuildSender == nullptr) {
         return false;
diff --git a/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java b/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java
index ddb3569f18e53bdef8d01b42fad4771a81903914..be01a76852472a90d677f3fbafe7718e99d406a9 100644
--- a/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java
+++ b/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java
@@ -462,21 +462,20 @@ public class CloudPhoneImpl implements ICloudPhone {
             }
         });
 
-        if (mDevType == CloudPhoneParas.DevType.DEV_TV) {
-            mSurfaceView.setOnKeyListener(new View.OnKeyListener() {
-                @Override
-                public boolean onKey(View v, int keyCode, KeyEvent event) {
-                    if ((keyCode == KEYCODE_BACK)
-                            || (keyCode == KEYCODE_VOLUME_DOWN)
-                            || (keyCode == KEYCODE_VOLUME_UP)) {
-                        return false;
-                    }
-                    CASLog.i(TAG, "keyCode = " + keyCode + " event = " + event.toString());
-                    mCASClient.sendKeyEvent(keyCode, event.getAction());
-                    return true;
+        mSurfaceView.setOnKeyListener(new View.OnKeyListener() {
+            @Override
+            public boolean onKey(View v, int keyCode, KeyEvent event) {
+                if ((keyCode == KEYCODE_VOLUME_DOWN) || (keyCode == KEYCODE_VOLUME_UP)) {
+                    return false;
                 }
-            });
-        }
+                if ((keyCode == KEYCODE_BACK) && mDevType == CloudPhoneParas.DevType.DEV_TV) {
+                    return false;
+                }
+                CASLog.i(TAG, "keyCode = " + keyCode + " event = " + event.toString());
+                mCASClient.sendKeyEvent(keyCode, event.getAction());
+                return true;
+            }
+        });
 
         //设置SurfaceView参数
         activity.runOnUiThread(new Runnable() {