【求教】android：listview优化相关，为什么中文很卡，英文就比较顺滑了？求答案！求解释！求教育！解决方案

    public class PrivacyAdapter extends BaseAdapter {        public Context context;        public List<PrivacyText> list;        public HashMap<Integer, View> m = new HashMap<Integer, View>();         /**         *          */        public PrivacyAdapter(Context context, List<PrivacyText> list) {            this.context = context;            this.list = list;        }        @Override        public int getCount() {            return list.size();        }        @Override        public Object getItem(int position) {            return list.get(position);        }        @Override        public long getItemId(int position) {            return position;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            ViewHoder hoder = null;            final PrivacyText privacyText = list.get(position);            convertView = m.get(position);            if (convertView != null){                hoder = (ViewHoder) convertView.getTag();                return convertView;            }else {                hoder = new ViewHoder();                convertView = LayoutInflater.from(context).inflate(                    R.layout.privacy_text_list, null);                convertView.setTag(hoder);                m.put(position, convertView);            }                        hoder.privacyTitle = (TextView) convertView                    .findViewById(R.id.privacy_text_title);            hoder.privacyBody = (MTextView) convertView                    .findViewById(R.id.privacy_text_body);            hoder.privacyBody.setText(list.get(position).pribacyBody);            if(privacyText.privacyTitle != null){                hoder.privacyTitle.setVisibility(View.VISIBLE);                hoder.privacyTitle.setText(privacyText.privacyTitle);            }else{                hoder.privacyTitle.setVisibility(View.GONE);            }            return convertView;        }        public class ViewHoder {            TextView privacyTitle;            MTextView privacyBody;        }    }/**     * 初始化privacy页面     */    public  void init() {                listView =(ListView) findViewById(R.id.login_policy_listview);        PrivacyAdapter adapter = new PrivacyAdapter(this, list);        listView.setAdapter(adapter);        listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);        listView.setFastScrollAlwaysVisible(true);        listView.setFastScrollEnabled(true);        listView.setDivider(null);        listView.setScrollBarStyle(ListView.SCROLLBARS_OUTSIDE_INSET);