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 a17ba5f57d88fdbab196ef15c78e1e65d791fbad..3778e1e81aefe6df0968b2c72583b17cb5dba428 100644
--- a/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java
+++ b/cloudphone/src/main/java/com/huawei/cloudphone/apiimpl/CloudPhoneImpl.java
@@ -16,17 +16,23 @@
 
 package com.huawei.cloudphone.apiimpl;
 
+import static android.view.KeyEvent.KEYCODE_BACK;
+import static android.view.KeyEvent.KEYCODE_VOLUME_DOWN;
+import static android.view.KeyEvent.KEYCODE_VOLUME_UP;
+import static com.huawei.cloudphone.api.CloudPhoneParas.DEV_TYPE_CAMERA;
+import static com.huawei.cloudphone.api.CloudPhoneParas.DisplayMode.DISPLAY_MODE_FILL;
+import static com.huawei.cloudphone.common.CasState.CAS_CONNECT_EXCEPTION;
+import static com.huawei.cloudphone.utils.CasMediaUtils.isValidMediaConfig;
+
 import android.app.Activity;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.graphics.PixelFormat;
-
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
-
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.SurfaceHolder;
@@ -63,14 +69,6 @@ import java.util.Map;
 import java.util.Timer;
 import java.util.TimerTask;
 
-import static android.view.KeyEvent.KEYCODE_BACK;
-import static android.view.KeyEvent.KEYCODE_VOLUME_DOWN;
-import static android.view.KeyEvent.KEYCODE_VOLUME_UP;
-import static com.huawei.cloudphone.api.CloudPhoneParas.DEV_TYPE_CAMERA;
-import static com.huawei.cloudphone.api.CloudPhoneParas.DisplayMode.DISPLAY_MODE_FILL;
-import static com.huawei.cloudphone.common.CasState.CAS_CONNECT_EXCEPTION;
-import static com.huawei.cloudphone.utils.CasMediaUtils.isValidMediaConfig;
-
 public class CloudPhoneImpl implements ICloudPhone {
     private static final String TAG = "CloudPhoneImpl";
     private static final int STATE_INIT = 0;
@@ -106,7 +104,6 @@ public class CloudPhoneImpl implements ICloudPhone {
     private int mDisplayHeight = 0;
     private int mCurrentState;
     private DisplayMode mDisplayMode = DISPLAY_MODE_FILL;
-    private boolean mIsSurfaceDestroyed = true;
     private Timer mBackGroundTimer = null;
     private int mAutoReconnectCount = 0;
     private Timer mAutoReconnectTimer = null;
@@ -243,7 +240,6 @@ public class CloudPhoneImpl implements ICloudPhone {
                     mSurfaceView.setOnTouchListener(null);
                     mSurfaceView.setOnKeyListener(null);
                     mSurfaceView = null;
-                    mIsSurfaceDestroyed = false;
                     mActivity = null;
                     mViewGroup = null;
                     mAutoReconnectCount = 0;
@@ -363,19 +359,11 @@ public class CloudPhoneImpl implements ICloudPhone {
         CASLog.i(TAG, "handleStartCmd start");
         mCurrentState = STATE_STARTING;
         //创建SurfaceView
-        while (!mIsSurfaceDestroyed) {
-            try {
-                Thread.sleep(10);
-            } catch (InterruptedException e) {
-                CASLog.i(TAG, "sleep has been interrupt");
-            }
-        }
         if (mDisplayMode == DISPLAY_MODE_FILL) {
             mSurfaceView = new PhoneView(activity, true);
         } else {
             mSurfaceView = new PhoneView(activity, false);
         }
-        mIsSurfaceDestroyed = false;
         mSurfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {
             @Override
             public void surfaceCreated(SurfaceHolder holder) {
@@ -423,7 +411,6 @@ public class CloudPhoneImpl implements ICloudPhone {
                             msg.what = CMD_SURFACE_DESTROY;
                             mCmdHandler.sendMessage(msg);
                         }
-                        mIsSurfaceDestroyed = true;
                     } catch (Exception e) {
                         CASLog.e(TAG, "surfaceDestroyed failed. " + e.getMessage());
                     } finally {