Android listview优化以及listview混合itemview

listView = (ListView) findViewById(R.id.listview);
mAdapter = new VideoListAdapter(this);
listView.setAdapter(mAdapter);

主要adapter

   public class VideoListAdapter extends BaseAdapter {

        int[] viewtype = {0, 0, 0, 1, 0, 0, 0, 1, 0, 0};//1 = jcvd, 0 = textView。主要的itemview类型数组

        Context context;
//        LayoutInflater mInflater;

        public VideoListAdapter(Context context) {
            this.context = context;
//            mInflater = LayoutInflater.from(context);
        }

        @Override
        public int getCount() {
            return viewtype.length;
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            //This is the point
//            if (convertView != null && convertView.getTag() != null && convertView.getTag() instanceof VideoHolder) {
//                ((VideoHolder) convertView.getTag()).jcVideoPlayer.release();
//            }
            if (getItemViewType(position) == 1) {
                VideoHolder viewHolder;
                if (convertView != null && convertView.getTag() != null && convertView.getTag() instanceof VideoHolder) {
                    viewHolder = (VideoHolder) convertView.getTag();//优化方法，判断是否以及加载，复用view
                } else {
                    viewHolder = new VideoHolder();
                    LayoutInflater mInflater = LayoutInflater.from(context);
                    convertView = mInflater.inflate(R.layout.item_videoview, null);//第一个itemview布局文件
                    viewHolder.jcVideoPlayer = (JCVideoPlayerStandard) convertView.findViewById(R.id.videoplayer);
                    convertView.setTag(viewHolder);
                }

                viewHolder.jcVideoPlayer.setUp(
                        VideoConstant.videoUrls[0][position], JCVideoPlayer.SCREEN_LAYOUT_LIST,
                        VideoConstant.videoTitles[0][position]);

                Picasso.with(ListViewMultiHolderActivity.this)
                        .load(VideoConstant.videoThumbs[0][position])
                        .into(viewHolder.jcVideoPlayer.thumbImageView);
            } else {
                TextViewHolder textViewHolder;
                if (convertView != null && convertView.getTag() != null && convertView.getTag() instanceof TextViewHolder) {
                    textViewHolder = (TextViewHolder) convertView.getTag();
                } else {
                    textViewHolder = new TextViewHolder();
                    LayoutInflater mInflater = LayoutInflater.from(context);
                    convertView = mInflater.inflate(R.layout.item_textview, null);//第二个itemview布局文件
                    textViewHolder.textView = (TextView) convertView.findViewById(R.id.textview);
                    convertView.setTag(textViewHolder);
                }
            }
            return convertView;
        }

        @Override
        public int getItemViewType(int position) {
            return viewtype[position];
        }

        @Override
        public int getViewTypeCount() {
            return 2;
        }

        class VideoHolder {
            JCVideoPlayerStandard jcVideoPlayer;//item1初始化
        }

        class TextViewHolder {
            TextView textView;//item2初始化
        }
    }