1.最簡潔的解決辦法。
adapter裏保存當前選中的位置變量,getView方法裏,禁用radiobutton的點擊事件,只通過listview的onItemClick事件設置選中位置變量,並且通過notifyDataSetChanged刷新列表。getView方法裏當前項位置爲選中項時設置radiobutton爲選中狀態。否則爲未選中狀態。通過adapter.getSelectedItem方法獲取當前選中項數據。
注意:本來想着讓阻塞radiobutton的獲取焦點、獲取點擊事件,試了各種設置,最後發現rb_status.setClickable(false);禁用radiobutton的點擊事件是有效的。
lv_opt.setAdapter(adapter);
lv_opt.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
adapter.setSelectedIndex(position);
}
});
public class AdapterOptionList extends BaseAdapter<OptionItem> {
public AdapterOptionList(Context context, List<OptionItem> list) {
super(context, list);
}
/**
<span style="white-space:pre"> </span> * 設置選中的項目
<span style="white-space:pre"> </span> *
<span style="white-space:pre"> </span> * @param position
<span style="white-space:pre"> </span> */
<span style="white-space:pre"> </span>public void setSelectedIndex(int position) {
<span style="white-space:pre"> </span>this.selectedIndex = position;
<span style="white-space:pre"> </span>notifyDataSetChanged();
<span style="white-space:pre"> </span>}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (null == convertView) {
viewHolder = new ViewHolder();
LayoutInflater inflater = LayoutInflater.from(context);
convertView = inflater.inflate(R.layout.item_opt,null);
viewHolder.rb_status = (RadioButton) convertView
.findViewById(R.id.rb_status);
viewHolder.tv_title_opt = (TextView) convertView
.findViewById(R.id.tv_title_opt);
viewHolder.tv_opt_detail = (TextView) convertView
.findViewById(R.id.tv_opt_detail);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.rb_status.setClickable(false);
OptionItem opt = list.get(position);
if(selectedIndex == position){
viewHolder.rb_status.setChecked(true);
opt.setSeletedStatus(true);
}else{
viewHolder.rb_status.setChecked(false);
opt.setSeletedStatus(false);
}
viewHolder.tv_title_opt.setText(opt.getName());
viewHolder.tv_opt_detail.setText(opt.getDiscription());
return convertView;
}
class ViewHolder {
RadioButton rb_status;
TextView tv_title_opt;
TextView tv_opt_detail;
}
}
2.最簡單粗暴的辦法。
adapter裏設置每一個radiobutton的狀態集合變量,在radiobutton的setOnCheckedChangeListener方法裏設置集合裏的每個radiobutton狀態,然後通過notifyDataSetChanged刷新列表。
比如http://blog.csdn.net/checkin001/article/details/11519131