我为微调器使用自定义数组适配器。但是,在下拉列表中选择项目时,下拉列表会保留在那里,并且微调器不会更新,这是不正常行为(与使用带字符串的通用数组适配器相比)。这是自定义类。我错过了什么吗?感谢。
public class CalendarNameAdapter extends ArrayAdapter<AgendaLogic.ExternalCalendarInfo> {
Context mContext ;
ArrayList<AgendaLogic.ExternalCalendarInfo> mCalendarLayers;
public CalendarNameAdapter(Context context, int resource, ArrayList<AgendaLogic.ExternalCalendarInfo> objects) {
super(context, resource, objects);
mContext = context;
mCalendarLayers = objects;
}
@Override
public void add(AgendaLogic.ExternalCalendarInfo object) {
mCalendarLayers.add(object);
}
@Override
public int getCount() {
return mCalendarLayers.size();
}
private class ViewHolder{
Button button;
TextView textView;
public ViewHolder(Button _btn, TextView _tv){
button = _btn;
textView = _tv;
}
}
public View getView(int position, View convertView, final ViewGroup parent) {
View view =convertView;
if (view==null){
view = View.inflate(mContext,R.layout.li_calendar_display, null);
Button button = (Button) view.findViewById(R.id.calColor);
TextView name = (TextView) view.findViewById(R.id.calName);
view.setTag(new ViewHolder(button, name));
}
ViewHolder viewHolder = (ViewHolder) view.getTag();
viewHolder.button.setBackgroundColor(mCalendarLayers.get(position).color);
viewHolder.textView.setText(mCalendarLayers.get(position).name);
return view;
}
@Override
public View getDropDownView(final int position, View convertView, final ViewGroup parent) {
final View view = getView(position, convertView, parent);
return view;
}
}
这是用法,首先使用模拟数据初始化微调器。
public void initSpinner(){
CalendarNameAdapter exteralCalAdapter = createAdapterWithString(this, "temp calendar");
mExternalSpinner.setAdapter(exteralCalAdapter);
}
public CalendarNameAdapter createAdapterWithString(Context context, String display) {
ArrayList<AgendaLogic.ExternalCalendarInfo> list = new ArrayList<AgendaLogic.ExternalCalendarInfo>();
list.add(new AgendaLogic.ExternalCalendarInfo(-1, display, 0xaabbcc));
CalendarNameAdapter dataAdapter = new CalendarNameAdapter(context,
0, list); //don't care about resource file, since we always use custom file, hence 0
return dataAdapter;
}
当我已经加载了我需要的数据时,我将它添加到适配器:
private void setCalendarInfoToSpinner(ArrayList<AgendaLogic.ExternalCalendarInfo> calList, Spinner spinner) {
CalendarNameAdapter adapter = (CalendarNameAdapter) spinner.getAdapter();
adapter.clear();
for (AgendaLogic.ExternalCalendarInfo info: calList)
adapter.add(info);
adapter.notifyDataSetChanged();
}
答案 0 :(得分:0)
我最后回答了自己的问题,以了解以后谁需要它。解决方案是:检查列表项的布局文件。如果有按钮,收音机,复选框,等等。将其可聚焦性设置为false,以便当您点击该项目时,列表将获得点击,而不是该子视图。
android:focusable="false"
对于类似问题的另一个答案是信用,但我现在似乎无法找到它。