<cn.bertsir.cameralibary.CameraView
        android:id="@+id/cv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:direction="BACK"
        ></cn.bertsir.cameralibary.CameraView>

/**
 * 关闭相机
 * @param mActivity
 */
public void close(Activity mActivity)

/**
 * 切换摄像头（相反切换）
 */
public void ChangeCamera()

/**
 * 切换摄像头（指定切换）
 */
public void ChangeCamera(int direction)
/**
 * 拍照
 * @param mTakeSuccess
 * @return
 */
public Bitmap takePhoto(CameraHelper.takeSuccess mTakeSuccess)

/**
 * 拍照并添加水印
 * @param waterMask
 * @param paddingLeft
 * @param paddingTop
 * @return
 */
public void takePhotoAddWaterMask(final Bitmap waterMask, final int paddingLeft, final int paddingTop,
                                  final WaterImageListener mWaterImageListener
  /**
 * 判断当前相机是否是前置摄像头
 * @return
 */
public Boolean currentCameraIsFront()

<cn.bertsir.cameralibary.view.BlurPreviewView
     android:id="@+id/bpv"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
</cn.bertsir.cameralibary.view.CameraView>

			CameraBlurUtils.getInstance().init(this);//初始化高斯模糊工具
            cv.setPreviewFrameListener(new PreviewFrameListener() {
                @Override
                public void onPreviewFrameListener(byte[] data, Camera camera) {
                    bpv.setBlurFrame(CameraBlurUtils.getInstance().blur(data,camera,15f));
                }
            });

defaultConfig {
    .......

    renderscriptTargetApi 21
    renderscriptSupportModeEnabled true
}