diff --git a/app/src/main/java/com/jiangdg/usbcamera/view/USBCameraActivity.java b/app/src/main/java/com/jiangdg/usbcamera/view/USBCameraActivity.java
index ca809a4..9ea4ceb 100644
--- a/app/src/main/java/com/jiangdg/usbcamera/view/USBCameraActivity.java
+++ b/app/src/main/java/com/jiangdg/usbcamera/view/USBCameraActivity.java
@@ -42,6 +42,8 @@ import butterknife.OnClick;
 public class USBCameraActivity extends AppCompatActivity implements CameraDialog.CameraDialogParent{
     @BindView(R.id.camera_view)
     public View mTextureView;
+    @BindView(R.id.camera_view2)
+    public View mTextureView2;
     @BindView(R.id.btn_capture_pic)
     public Button mBtnCapture;
     @BindView(R.id.btn_rec_video)
@@ -140,7 +142,7 @@ public class USBCameraActivity extends AppCompatActivity implements CameraDialog
             case R.id.btn_restart_camera:
                 if(mUSBManager == null)
                     return;
-                mUSBManager.restartUSBCamera(mUVCCameraView,new USBCameraManager.OnPreviewListener() {
+                mUSBManager.restartUSBCamera((CameraViewInterface) mTextureView2,new USBCameraManager.OnPreviewListener() {
                     @Override
                     public void onPreviewResult(boolean isSuccess) {
                         if(isSuccess) {
diff --git a/app/src/main/res/layout/activity_usbcamera.xml b/app/src/main/res/layout/activity_usbcamera.xml
index a737bc6..16c2ab1 100644
--- a/app/src/main/res/layout/activity_usbcamera.xml
+++ b/app/src/main/res/layout/activity_usbcamera.xml
@@ -14,6 +14,13 @@
         android:layout_centerVertical="true"
         android:layout_centerHorizontal="true"/>
 
+    <com.serenegiant.usb.widget.UVCCameraTextureView
+        android:id="@+id/camera_view2"
+        android:layout_width="300dp"
+        android:layout_height="300dp"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentRight="true"/>
+
     <Button
         android:id="@+id/btn_capture_pic"
         android:layout_width="match_parent"
diff --git a/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java b/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
index d3717f4..68ac30f 100644
--- a/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
+++ b/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
@@ -130,15 +130,13 @@ public class USBCameraManager{
     public void createUVCCamera(CameraViewInterface cameraView) {
         if(cameraView == null)
             throw new NullPointerException("CameraViewInterface cannot be null!");
-        this.cameraView = cameraView;
-        // 关闭摄像头
-        closeCamera();
         // 释放CameraHandler占用的相关资源
         if(mCameraHandler != null){
             mCameraHandler.release();
             mCameraHandler = null;
         }
         // 重新初始化mCameraHandler
+        this.cameraView = cameraView;
         cameraView.setAspectRatio(previewWidth / (float)previewHeight);
         mCameraHandler = UVCCameraHandler.createHandler(mActivity,cameraView,ENCODER_TYPE,
                 previewWidth,previewHeight,PREVIEW_FORMAT);
@@ -152,8 +150,6 @@ public class USBCameraManager{
         }
         this.previewWidth = width;
         this.previewHeight = height;
-        // 关闭摄像头
-        closeCamera();
         // 释放CameraHandler占用的相关资源
         if(mCameraHandler != null){
             mCameraHandler.release();
@@ -176,17 +172,6 @@ public class USBCameraManager{
     }
 
     public void restartUSBCamera(CameraViewInterface cameraView,final OnPreviewListener mPreviewListener){
-//        // 关闭摄像头
-//        closeCamera();
-//        // 释放CameraHandler占用的相关资源
-//        if(mCameraHandler != null){
-//            mCameraHandler.release();
-//            mCameraHandler = null;
-//        }
-//        // 重新初始化mCameraHandler
-//        cameraView.setAspectRatio(previewWidth / (float)previewHeight);
-//        mCameraHandler = UVCCameraHandler.createHandler(activity,cameraView,ENCODER_TYPE,
-//                previewWidth,previewHeight,PREVIEW_FORMAT);
         // 创建Camera管理线程
         createUVCCamera(cameraView);
         // 创建Camera
@@ -293,8 +278,6 @@ public class USBCameraManager{
 
     // 释放资源
     public void release(){
-        // 关闭摄像头
-        closeCamera();
         //释放CameraHandler占用的相关资源
         if(mCameraHandler != null){
             mCameraHandler.release();
@@ -314,7 +297,7 @@ public class USBCameraManager{
     // 关闭Camera
     public void closeCamera() {
         if(mCameraHandler != null){
-            mCameraHandler.close();
+            mCameraHandler.release();
         }
     }