新人，在listview中加载的spinner，spinner内容怎么保存？

Question

目前页面显示没有问题，当前页面选择spinner也可以正常显示不过只要滑动页面就会让spinner的数据重置，这个问题需要怎么来处理？希望能给出相应的处理方法代码或者思考方向，感谢！

Answer 1

public class AssessLVAdapter extends BaseAdapter {
private Context context;
private List<Map<String, Object>> list; public AssessLVAdapter(Context context, List<Map<String, Object>> 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(final int position, View convertView,
ViewGroup parent) {
convertView = LayoutInflater.from(context).inflate(
R.layout.assess_item, null);
tv_assess_item = (TextView) convertView
.findViewById(R.id.tv_assess_item);
sp_assess_item = (Spinner) convertView
.findViewById(R.id.sp_assess_item);
tv_assess_item.setText((String) list.get(position).get("project"));
ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(
context, android.R.layout.simple_spinner_item,
list_str.get(position)); spinnerAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp_assess_item.setAdapter(spinnerAdapter);
sp_assess_item
.setOnItemSelectedListener(new OnItemSelectedListener() { @Override
public void onItemSelected(AdapterView<?> parent,
View view, int position, long id) {
} @Override
public void onNothingSelected(AdapterView<?> parent) { }
});
return convertView;
}
}我的adapter代码是这样的

Answer 2

public class AssessLVAdapter extends BaseAdapter {
private Context context;
private List<Map<String, Object>> list;
                private Map<Integer,Integer> map = new HashMap<Integer,Integer>(); public AssessLVAdapter(Context context, List<Map<String, Object>> list) {
this.context = context;
this.list = list;
                        for(int i = 0 ; i < list.size();i++) {
                         map.put(i,0); //
                        } } @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(final int position1, View convertView,
ViewGroup parent) {
convertView = LayoutInflater.from(context).inflate(
R.layout.assess_item, null);
tv_assess_item = (TextView) convertView
.findViewById(R.id.tv_assess_item);
sp_assess_item = (Spinner) convertView
.findViewById(R.id.sp_assess_item);
tv_assess_item.setText((String) list.get(position).get("project"));
ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(
context, android.R.layout.simple_spinner_item,
list_str.get(position)); spinnerAdapter
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp_assess_item.setAdapter(spinnerAdapter);
sp_assess_item
.setOnItemSelectedListener(new OnItemSelectedListener() {
                               
@Override
public void onItemSelected(AdapterView<?> parent,
View view, int position, long id) {
  map.put(position1,position);
} @Override
public void onNothingSelected(AdapterView<?> parent) { }
});
return convertView;
}
}
sp_assess_item.setSelection(map.get(position1));

Answer 3

我在BaseAdapter中放spinner有这个android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application错误 怎么你怎么解决的。