fix: asyncUpload logic error

android/src/main/java/com/reactlibrary/AliyunUploadManager.java

         try {
             String[] proj = {MediaStore.Images.Media.DATA};
             cursor = context.getCurrentActivity().getContentResolver().query(selectedVideoUri, proj, null, null, null);
-            if (cursor == null) uploadFilePath = selectedVideoUri.getPath();
-            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
-            cursor.moveToFirst();
-            uploadFilePath = cursor.getString(column_index);
+            if (cursor == null) {
+                uploadFilePath = selectedVideoUri.getPath();
+            } else {
+                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
+                cursor.moveToFirst();
+                uploadFilePath = cursor.getString(column_index);
+            }
         } catch (Exception e) {
             uploadFilePath = FileUtils.getFilePathFromURI(context.getCurrentActivity(), selectedVideoUri);
         } finally {