问如何解决Android中输入转换错误？

EN

    View listItemView = convertView;
    if (listItemView == null) {
        listItemView = LayoutInflater.from( getContext() ).inflate(
                R.layout.newsfeed_list_item, parent, false );
    }


    // Find the news at the given position in the list of news.
    NewsFeed currentNewsFeed = getItem( position );

    // Find the TextView with view ID. 
    TextView sectionIdView = (TextView) listItemView.findViewById( R.id.sectionId );


    // Set the proper background color on the news circle.
    // Fetch the background from the TextView, which is a GradientDrawable.
    GradientDrawable sectionIdCircle = (GradientDrawable) sectionIdView.getBackground();

    // Get the appropriate background color based on the current news feed
    int sectionIdColor = getSectionIdColor(currentNewsFeed.getSectionId());

   // Set the color on the news circle
    sectionIdCircle.setColor( sectionIdColor );