我有一个带有上下文菜单的 ExpandableListView。不管我有多少组项目，它总是返回 0。
我的代码：
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) menuInfo;
int group = ExpandableListView.getPackedPositionGroup((int) info.packedPosition);
int type = ExpandableListView.getPackedPositionType((int) info.packedPosition);
int child = ExpandableListView.getPackedPositionChild((int) info.packedPosition);
Log.d("Value ConTEXT: " + String.valueOf(group), String.valueOf(child) + " GROUP COUNT " + getExpandableListAdapter().getGroupCount());
menu.setHeaderTitle(((Person) dAdapter.getGroup(group)).getName());
// menu.add(0, 0, 0, "Geschiedenis verwijderen");
menu.add(1, 1, 1, "Verwijderen uit lijst");
}
还有我的自定义基本列表适配器：
public class DrinkActionAdapter extends BaseExpandableListAdapter {
Activity context;
ArrayList<Person> personsGroup;
ArrayList<Person> personsChild;
public DrinkActionAdapter(Activity context, ArrayList<Person> personsGroup,
ArrayList<Person> personsChild) {
this.context = context;
this.personsGroup = personsGroup;
this.personsChild = personsChild;
}
public void addPerson(Person p) {
personsGroup.add(p);
personsChild.add(p);
for (Person pp : personsGroup) {
Log.d(pp.getName(), pp.getName());
}
}
public Object getChild(int groupPosition, int childPosition) {
Log.d("GetChild" + String.valueOf(groupPosition), String.valueOf(childPosition));
return personsGroup.get(childPosition);
}
public long getChildId(int groupPosition, int childPosition) {
Log.d("GetChildID" + String.valueOf(groupPosition), String.valueOf(childPosition));
return childPosition;
}
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
Person p = personsChild.get(groupPosition);
View v = convertView;
Log.d(p.getName(), p.getName() + "CHILD");
if (v == null) {
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = mInflater.inflate(R.layout.drink_action_child, null);
}
if (personsChild.size() != 0) {
TextView lbFavoriteDrink = (TextView) v.findViewById(R.id.drink_action_child_lb_favorite_drink);
if (p.getFavoriteDrink() != null) {
lbFavoriteDrink.setText(p.getFavoriteDrink().getName());
} else {
lbFavoriteDrink.setText("Nog niks gedronken.");
}
TextView lbCost = (TextView) v.findViewById(R.id.drink_action_child_lb_cost);
lbCost.setText(String.valueOf(p.getTotalMoneySpent()));
TextView lbAmount = (TextView) v.findViewById(R.id.drink_action_child_lb_amount);
lbAmount.setText(String.valueOf(p.getTotalAmountOfDrinks()));
TextView lbKcal = (TextView) v.findViewById(R.id.drink_action_child_lb_kcal);
lbKcal.setText(String.valueOf(p.getTotalKcal()));
TextView lbPunishment = (TextView) v.findViewById(R.id.drink_action_child_lb_boete);
lbPunishment.setText(p.getPunishment());
TextView lbWeightPutOn = (TextView) v.findViewById(R.id.drink_action_child_lb_weight);
lbWeightPutOn.setText(String.valueOf(p.getWeightPutOn()));
TextView lbLiters = (TextView) v.findViewById(R.id.drink_action_child_lb_liter);
lbLiters.setText(String.valueOf(p.getAmountOfLiters()));
TextView lbTimeSinceLastDrink = (TextView) v.findViewById(R.id.drink_action_child_lb_time_since_last_drink);
lbTimeSinceLastDrink.setText(String.valueOf(p.getTimeSinceLast()[2]) + ":" + String.valueOf(p.getTimeSinceLast()[1]) + ":" + String.valueOf(p.getTimeSinceLast()[0]));
} else {
// WHAT TO DO IF NO PROFILES
}
return v;
}
public int getChildrenCount(int groupPosition) {
Log.d("GetChildrenCount" + String.valueOf(groupPosition), String.valueOf(groupPosition));
return 1;
// return persons.size();
}
public Object getGroup(int groupPosition) {
Log.d(String.valueOf(groupPosition), String.valueOf(groupPosition) + personsGroup.get(groupPosition).getName());
return personsGroup.get(groupPosition);
}
public int getGroupCount() {
return personsGroup.size();
}
public long getGroupId(int groupPosition) {
Log.d(String.valueOf(groupPosition) + "GetGroupId", String.valueOf(groupPosition));
return groupPosition;
}
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
Person p = personsGroup.get(groupPosition);
View v = convertView;
Log.d(groupPosition + " " + p.getName(), p.getName() + "GROUP");
if (v == null) {
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = mInflater.inflate(R.layout.drink_action_item, null);
}
if (personsGroup.size() != 0) {
TextView lbName = (TextView) v.findViewById(R.id.drink_action_lb_name);
TextView lbAlcohol = (TextView) v.findViewById(R.id.drink_action_info_current_alcohol);
ImageView btnDrink = (ImageView) v.findViewById(R.id.drink_action_item_btn_drink);
btnDrink.setTag(p);
lbName.setText(p.getName());
lbAlcohol.setText(String.valueOf(p.getCurrentAlcoholLevel()));
} else {
// WHAT TO DO IF NO PROFILES
}
return v;
}
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}
}
每当我长按一个项目时，它总是选择第一个。