我正在使用Expandablelistview内部多个checkbox子项，但我无法在每个组内维护checkbox的已检查状态。我经常尝试搜索并获得了一些代码但仍然得到这个问题。我认为有时我没有得到正确的孩子的位置或团体位置，因为这不能坚持他们的检查状态。我已经浪费了我们2天的故障排除。所以你的帮助真的可以保存我未来的日子并受到赞赏。这是我的适配器代码：
public class SubItemAdapter extends BaseExpandableListAdapter {
private List<String> titleList;
private List<ItemDetailMapper> number_items;
private LayoutInflater inflater;
private HashMap<String,List<ItemDetailMapper>> childlist;
Context context;
FontFamily fontFamily;
private RadioButton mSelectedRB;
private int mSelectedPosition = -1;
ArrayList<Integer> integerArrayList;
boolean [] checkedPosition;
boolean [] checkParentPosition;
HashMap<Integer, boolean []> check;
ImageLoader imageLoader;
DisplayImageOptions displayImageOptions;
int count = 0;
Integer numberof_items;
List<Integer> child_position;
List<Integer> parent_position;
private HashMap<Integer,boolean[]> itemCheck;
public SubItemAdapter(ItemDetailActivity context, List<String> headings_itemList, HashMap<String, List<ItemDetailMapper>> child_itemList, List<ItemDetailMapper> child) {
this.context = context;
this.titleList = headings_itemList;
this.childlist = child_itemList;
this.number_items = child;
fontFamily = new FontFamily(context);
integerArrayList = new ArrayList<Integer>();
imageLoader = ImageLoader.getInstance();
checkParentPosition = new boolean[titleList.size()];
check = new HashMap<Integer, boolean []>();
child_position = new ArrayList<Integer>();
parent_position = new ArrayList<Integer>();
itemCheck = new HashMap<Integer, boolean[]>();
displayImageOptions = new DisplayImageOptions.Builder()
.showImageOnLoading(android.R.drawable.ic_menu_gallery)
.showImageForEmptyUri(android.R.drawable.ic_menu_gallery)
.showImageOnFail(android.R.drawable.ic_menu_gallery)
.cacheInMemory(true)
.cacheOnDisk(true)
.considerExifParams(true)
.bitmapConfig(Bitmap.Config.RGB_565)
.build();
}
@Override
public int getGroupCount() {
return titleList.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return childlist.get(titleList.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return titleList.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return childlist.get(this.titleList.get(groupPosition)).get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
String listTitle = (String) getGroup(groupPosition);
CoachHolder holder = null;
View row = convertView;
if (row == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = layoutInflater.inflate(R.layout.shopping_list_item_parentrow, null);
holder = new CoachHolder(row);
row.setTag(holder);
}else{
holder =(CoachHolder)row.getTag();
}
String numberofitems =
number_items.get(groupPosition).getSubProductItemNumber();
numberof_items =
Integer.valueOf(number_items.get(groupPosition).getSubProductItemNumber());
Boolean requiredproduct =
number_items.get(groupPosition).getSubProductRequired();
return row;
}
@Override
public View getChildView(int groupPosition,int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
ItemDetailMapper expandedListData = (ItemDetailMapper)getChild(groupPosition,childPosition);
// final String expandedListText = (String) getChild(groupPosition, childPosition);
// checkedPosition = new boolean[childlist.get(titleList.get(groupPosition)).size()];
ChildHolder holder = null;
View row = convertView;
LinearLayout lnrLayout = null;
final int chl = childPosition;
final int grp= groupPosition;
if (row == null) {
LayoutInflater layoutInflater = (LayoutInflater) this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row = layoutInflater.inflate(R.layout.sub_item_row, null);
holder = new ChildHolder(row);
row.setTag(R.layout.sub_item_row,holder);
}else{
holder =(ChildHolder)row.getTag(R.layout.sub_item_row);
}
if (itemCheck.containsKey(grp)){
boolean getChecked[] = itemCheck.get(grp);
holder.checkBox.setChecked(getChecked[chl]);
notifyDataSetChanged();
}else{
boolean getChecked[] = new boolean[getChildrenCount(grp)];
itemCheck.put(grp,getChecked);
holder.checkBox.setChecked(false);
notifyDataSetChanged();
}
holder.checkBox.setOnCheckedChangeListener(null);
holder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if (b){
boolean getChecked[] = itemCheck.get(grp);
getChecked[chl] = b;
itemCheck.put(grp,getChecked);
notifyDataSetChanged();
}else{
boolean getChecked[] = itemCheck.get(grp);
getChecked[chl] = b;
itemCheck.put(grp,getChecked);
notifyDataSetChanged();
}
}
});
holder.child_tv1.setText(expandedListData.getSubproductItemName());
holder.item_price.setText("("+"$ "+
expandedListData.getSubProductItemPrice()+")");
imageLoader.displayImage(expandedListData.getSubProductItemImage(),
holder.imagev1, displayImageOptions);
return row;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
static class CoachHolder {
TextView textView1;
ImageView imageView;
//TextView descriptions
public CoachHolder(View v)
{
textView1 = (TextView)v.findViewById(R.id.parenttext);
imageView = (ImageView)v.findViewById(R.id.expandable_identifier);
}
}
//CUSTOM Child CLASS for listgroup
static class ChildHolder {
ImageView imagev1;
TextView child_tv1,item_price;
// RadioGroup radioGroup;
CheckBox checkBox;
//TextView descriptions
public ChildHolder(View v)
{
item_price = (TextView)v.findViewById(R.id.item_price);
imagev1 = (ImageView)v.findViewById(R.id.imageView20);
child_tv1 = (TextView)v.findViewById(R.id.textView164);
checkBox = (CheckBox) v.findViewById(R.id.radioButton5);
}
}
}