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我正在尝试实现一个 N 级 ExpandableListView 并且我将这些代码用于getChildViewand getGroupView：

    @Override
public View getChildView(int groupPosition, int childPosition,
        boolean isLastChild, View view, ViewGroup parent) {

    ExpandNode child = (ExpandNode) getChild(groupPosition, childPosition);
    ExpandNode group = (ExpandNode) getGroup(groupPosition);

    if (group.hasChild()) {
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.index_expandable_list, null);
        }
        ExpandableListView expandableListView = (ExpandableListView) view.findViewById(R.id.myExpandableListView);
        ExpandAdapter adapter = new ExpandAdapter(context, group.getChilds());
        expandableListView.setAdapter(adapter);
    } else {
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.index_child_row, null);
        }
        TextView childTextView = (TextView) view.findViewById(R.id.childTextView);
        childTextView.setText(child.getTitle().toString());
    }
    return view;
}

和 ：

@Override
public View getGroupView(int groupPosition, boolean isLastChild, View view,ViewGroup parent) {
    ExpandNode group = (ExpandNode) getGroup(groupPosition);
    if (view == null) {
        view = LayoutInflater.from(context).inflate(R.layout.index_parent_row, null);
    }
    TextView childTextView = (TextView) view.findViewById(R.id.parentTextView);
    childTextView.setText(group.getTitle().toString());
    return view;
}

问题是当我使用嵌套适配器时，内部适配器中getChildView的groupPosition值始终为 0，getGroupView并且始终引用 arrayList 中的第一个值。例如：arrayList 中的值是：

Level1
    level1_1
    level1_2
    level1_3
level2

但它显示：

Level1
    level1_1
    level1_1
    level1_1
level2

它仅在我使用嵌套适配器时发生，并且在使用时有效getChildView：

    @Override
public View getChildView(int groupPosition, int childPosition,boolean isLastChild, View view, ViewGroup parent) {

    ExpandNode child = (ExpandNode) getChild(groupPosition, childPosition);
    if (view == null) {
        view = LayoutInflater.from(context).inflate(R.layout.index_child_row, null);
    }
    TextView childTextView = (TextView) view.findViewById(R.id.childTextView);
    childTextView.setText(child.getTitle().toString());
    return view;
}

但它不再是 N 级列表了......有什么建议我该如何解决这个问题？

下面提到的我的适配器中的其他实现方法：

    @Override
public Object getChild(int groupPosition, int childPosition) {
    return groups.get(groupPosition).getChilds().get(childPosition);
}

@Override
public long getChildId(int groupPosition, int childPosition) {
    return childPosition;
}

@Override
public int getChildrenCount(int groupPosition) {
    return groups.get(groupPosition).getChilds().size();
}

@Override
public Object getGroup(int groupPosition) {
    return groups.get(groupPosition);
}

@Override
public int getGroupCount() {
    return groups.size();
}

@Override
public long getGroupId(int groupPosition) {
    return groupPosition;
}

@Override
public boolean hasStableIds() {
    return true;
}

@Override
public boolean isChildSelectable(int arg0, int arg1) {
    return true;
}
4

1 回答 1

0

当我遇到问题时。它在getChildCount(int)其中包括另一个的所有孩子的计数ExpandableListView。我仍在努力。将很快发布答案。将为这个问题标记星，所以不要忘记回答

于 2016-07-16T12:39:52.940 回答