ListView uses the CHOICE_MODE_MULTIPLE attribute to achieve multi-choice and listview multiple-choice

ListView uses the CHOICE_MODE_MULTIPLE attribute to achieve multi-choice and listview multiple-choice
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Adapter:

public class CrazyAdapter extends BaseAdapter {    private Context mContext;    private List<String> mList;    public CrazyAdapter(Context mContext, List<String> mList) {        this.mContext = mContext;        this.mList = mList;    }    @Override    public int getCount() {        return mList.size();    }    @Override    public Object getItem(int position) {        return null;    }    @Override    public long getItemId(int position) {        return 0;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder holder = null;        if (convertView == null) {            convertView = LayoutInflater.from(mContext).inflate(R.layout.item_list, null);            holder = new ViewHolder();            holder.view = (TextView) convertView.findViewById(R.id.tv_city);            holder.box = (CheckBox) convertView.findViewById(R.id.rb_view);            convertView.setTag(holder);        } else {            holder = (ViewHolder) convertView.getTag();        }        holder.view.setText(mList.get(position));        holder.box.setChecked(((ListView) parent).isItemChecked(position));        return convertView;    }    public final class ViewHolder {        private TextView view;        private CheckBox box;    }}

Page code:

Public class ListViewActivity extends Activity {private ListView mListView; private List <String> mList; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_list); mListView = (ListView) findViewById (R. id. ls_view); String [] mStrs = {" Chuan longzhijie", "San shimayu", "Chuan Duan Kang Cheng", "cun Shang chunshu", "dongye guiwu", "Zhang Ailing", "Jin Yong ", "Qian Zhongshu", "Lao She", "Liang Shiqiu", "Henry Miller", "Hemingway ", "Fiz", "Kerouac", "Jack London", "Tom", "Duras", "forloubay", "Hugo", "Balzac", "Shakespeare ", "Lawrence", "Mao", "Conan Doyle", "Flute"}; mList = Arrays. asList (mStrs); final CrazyAdapter mAdapter = new CrazyAdapter (this, mList); mListView. setAdapter (mAdapter); mListView. setChoiceMode (ListView. CHOICE_MODE_MULTIPLE); mListView. setOnItemClickListener (new AdapterView. onItemClickListener () {@ Override public void onItemClick (AdapterView <?> Parent, View view, int position, long id) {mAdapter. policydatasetchanged ();}});}}

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