如何在 Android 1.6 上获取图像的当前旋转？

Question

如何在 Android 1.6 上获取图像的当前旋转？ 至于android 2.0我使用ExifInterface，但它在android 1.6上不可用我想在android 1.6上实现这样的功能

ExifInterface exif = new ExifInterface(path);
             int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
             if (orientation != -1) {
                     // recognize a subset of orientation tag values.
                     switch (orientation) {
                     case ExifInterface.ORIENTATION_ROTATE_90:
                         degree = 90;
                         break;
                     case ExifInterface.ORIENTATION_ROTATE_180:
                         degree = 180;
                         break;
                     case ExifInterface.ORIENTATION_ROTATE_270:
                         degree = 270;
                         break;
                     default:
                         degree = 0;
                         break;
                     }
                 }