如何在 ExpandableListView 中隐藏特定组的子项？

Question

我的 ExpandableListView 总是有一个特定群体的独生子女。对于某些组，我想隐藏子项，但我希望该组仍然可以单击（单击后的每个组项都会更改其布局）。那么对于来自 getChildView 的此类组应该返回什么？

Answer 1

覆盖 getChildrenCount 并为您想要的组 return 0，就好像他们没有 children。不过它们仍然可以点击。

@Override
public int getChildrenCount(int groupPosition) {
    if (groupPosition == 1) {
        return 0;
    } else {
        return super.getChildrenCount(groupPosition);
    }
}

Answer 2

这是我的想法，代码没有测试

public view getChildView(int groupPosition, int ChildPosition, boolean b, View view, ViewGroup viewGroup){
if(!groupPostion)//for the group you dont want the layout to be displayed
v=your custom view for the child items.//or if you know the exact position define it like 
//if or use switch (groupPosition==something){v.setVisibility(View.GONE)}
return v;
}

Answer 3

您需要致电collapseGroup()。同样在您的构造函数中，您需要您的 ExpandableListView

public class YourExapandableAdapter extends BaseExpandableListAdapter {

    private Context mContext;
    ExpandableListView mExpandableListView;
    int mLastExpandedGroupPosition = -1;

    public YourExapandableAdapter(Context context, ExpandableListView expandableListView) {
            mContext = context;
            mExpandableListView = expandableListView;
    }

    @Override
    public void onGroupExpanded(int groupPosition) {
        super.onGroupExpanded(groupPosition);
        if(groupPosition != mLastExpandedGroupPosition){
                mExpandableListView.collapseGroup(mLastExpandedGroupPosition);
        }

        mLastExpandedGroupPosition = groupPosition;
    }

在这种情况下，我隐藏了最后一个组，但您可以隐藏当前组或任何您想要的组。

如何在 ExpandableListView 中隐藏特定组的子项？

How to hide child items for a particular group in ExpandableListView?

android

expandablelistview

expandablelistadapter