diff --git a/libusbcamera/libusbcamera.iml b/libusbcamera/libusbcamera.iml
index 013d57c..6f13e12 100644
--- a/libusbcamera/libusbcamera.iml
+++ b/libusbcamera/libusbcamera.iml
@@ -67,14 +67,6 @@
       <sourceFolder url="file://$MODULE_DIR$/src/main/jni" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/rs" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/shaders" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/jni" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/res" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/resources" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" type="java-test-resource" />
@@ -83,6 +75,14 @@
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/jni" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/shaders" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/jni" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/annotations" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/blame" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/bundles" />
diff --git a/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java b/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
index c81ea2d..5d2fca1 100644
--- a/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
+++ b/libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java
@@ -198,7 +198,7 @@ public class USBCameraManager{
             }
         });
     }
-    
+
     /**
      * 注册检测USB设备广播接收器
      * */
diff --git a/libusbcamera/src/main/java/com/serenegiant/usb/widget/UVCCameraTextureView.java b/libusbcamera/src/main/java/com/serenegiant/usb/widget/UVCCameraTextureView.java
index 7813a11..16ab871 100644
--- a/libusbcamera/src/main/java/com/serenegiant/usb/widget/UVCCameraTextureView.java
+++ b/libusbcamera/src/main/java/com/serenegiant/usb/widget/UVCCameraTextureView.java
@@ -79,7 +79,10 @@ public class UVCCameraTextureView extends AspectRatioTextureView    // API >= 14
 	@Override
 	public void onResume() {
 		if (DEBUG) Log.v(TAG, "onResume:");
-		if (mHasSurface) {
+//		if (mHasSurface) {
+//			mRenderHandler = RenderHandler.createHandler(mFpsCounter, super.getSurfaceTexture(), getWidth(), getHeight());
+//		}
+		if (mRenderHandler == null) {
 			mRenderHandler = RenderHandler.createHandler(mFpsCounter, super.getSurfaceTexture(), getWidth(), getHeight());
 		}
 	}
@@ -87,10 +90,10 @@ public class UVCCameraTextureView extends AspectRatioTextureView    // API >= 14
 	@Override
 	public void onPause() {
 		if (DEBUG) Log.v(TAG, "onPause:");
-		if (mRenderHandler != null) {
-			mRenderHandler.release();
-			mRenderHandler = null;
-		}
+//		if (mRenderHandler != null) {
+//			mRenderHandler.release();
+//			mRenderHandler = null;
+//		}
 		if (mTempBitmap != null) {
 			mTempBitmap.recycle();
 			mTempBitmap = null;