如何在navigationbar Android中放置三级expandablelistview

我想在导航栏中添加3级可扩展列表视图。在每个扩展上都会有子单击。我在导航栏中实现了2级可扩展listview，但3级给我造成了错误。是否有任何第三方库用于此。 如果你的项目中有人这样做，请指导我解决这个问题

我的2级导航可扩展列表代码如下所示

public class MainActivity extends AppCompatActivity {

private DrawerLayout mDrawerLayout;
private ActionBarDrawerToggle mDrawerToggle;
private String mActivityTitle;
private String[] items;

private ExpandableListView mExpandableListView;
private ExpandableListAdapter mExpandableListAdapter;
private List<String> mExpandableListTitle;
private NavigationManager mNavigationManager;

private Map<String, List<String>> mExpandableListData;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mActivityTitle = getTitle().toString();

    mExpandableListView = (ExpandableListView) findViewById(R.id.navList);
    mNavigationManager = FragmentNavigationManager.obtain(this);

    initItems();

    LayoutInflater inflater = getLayoutInflater();
    View listHeaderView = inflater.inflate(R.layout.nav_header, null, false);
    mExpandableListView.addHeaderView(listHeaderView);

    mExpandableListData = ExpandableListDataSource.getData(this);
    mExpandableListTitle = new ArrayList(mExpandableListData.keySet());

    addDrawerItems();
    setupDrawer();

    if (savedInstanceState == null) {
        selectFirstItemAsDefault();
    }

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeButtonEnabled(true);
}

private void selectFirstItemAsDefault() {
    if (mNavigationManager != null) {
        String firstActionMovie = getResources().getStringArray(R.array.actionFilms)[0];
        mNavigationManager.showFragmentAction(firstActionMovie);
        getSupportActionBar().setTitle(firstActionMovie);
    }
}

private void initItems() {
    items = getResources().getStringArray(R.array.film_genre);
}

private void addDrawerItems() {
    mExpandableListAdapter = new CustomExpandableListAdapter(this, mExpandableListTitle, mExpandableListData);
    mExpandableListView.setAdapter(mExpandableListAdapter);
    mExpandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {
        @Override
        public void onGroupExpand(int groupPosition) {
            getSupportActionBar().setTitle(mExpandableListTitle.get(groupPosition).toString());
        }
    });

    mExpandableListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() {
        @Override
        public void onGroupCollapse(int groupPosition) {
            getSupportActionBar().setTitle(R.string.film_genres);
        }
    });

    mExpandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
        @Override
        public boolean onChildClick(ExpandableListView parent, View v,
                                    int groupPosition, int childPosition, long id) {
            String selectedItem = ((List) (mExpandableListData.get(mExpandableListTitle.get(groupPosition))))
                .get(childPosition).toString();
            getSupportActionBar().setTitle(selectedItem);

            if (items[0].equals(mExpandableListTitle.get(groupPosition))) {
                mNavigationManager.showFragmentAction(selectedItem);
            } else if (items[1].equals(mExpandableListTitle.get(groupPosition))) {
                mNavigationManager.showFragmentComedy(selectedItem);
            } else if (items[2].equals(mExpandableListTitle.get(groupPosition))) {
                mNavigationManager.showFragmentDrama(selectedItem);
            } else if (items[3].equals(mExpandableListTitle.get(groupPosition))) {
                mNavigationManager.showFragmentMusical(selectedItem);
            } else if (items[4].equals(mExpandableListTitle.get(groupPosition))) {
                mNavigationManager.showFragmentThriller(selectedItem);
            } else {
                throw new IllegalArgumentException("Not supported fragment type");
            }

            mDrawerLayout.closeDrawer(GravityCompat.START);
            return false;
        }
    });
}

public类MainActivity扩展了AppCompatActivity{
私人抽屉布局mDrawerLayout；
私有操作bardrawertoggle mDrawerToggle；
私有字符串mactivitytle；
私有字符串[]项；
私有可扩展列表视图mExpandableListView；
私有可扩展列表适配器mExpandableListAdapter；
私有列表mExpandableListTitle；
私人导航经理mNavigationManager；
私有地图mExpandableListData；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_main）；
mDrawerLayout=（抽屉布局）findViewById（R.id.抽屉布局）；
mActivityTitle=getTitle（）.toString（）；
mExpandableListView=（ExpandableListView）findViewById（R.id.navList）；
mNavigationManager=FragmentNavigationManager.get（此）；
initItems（）；
LayoutInflater充气机=getLayoutInflater（）；
视图listHeaderView=充气机。充气（R.layout.nav_标题，空，假）；
mExpandableListView.addHeaderView（listHeaderView）；
mExpandableListData=ExpandableListDataSource.getData（这个）；
mExpandableListTitle=新的ArrayList（mExpandableListData.keySet（））；
addDrawerItems（）；
setupDrawer（）；
如果（savedInstanceState==null）{
选择FirstItemasDefault（）；
}
getSupportActionBar（）.setDisplayHomeAsUpEnabled（true）；
getSupportActionBar（）.setHomeButtonEnabled（true）；
}
私有void selectFirstItemAsDefault（）{
if（mNavigationManager！=null）{
String firstActionMovie=getResources（）.getStringArray（R.array.ActionMovies）[0]；
mNavigationManager.showFragmentAction（firstActionMovie）；
getSupportActionBar（）.setTitle（firstActionMovie）；
}
}
私有项目（）{
items=getResources（）.getStringArray（R.array.film_流派）；
}
私有void addDrawerItems（）{
mExpandableListAdapter=新的CustomExpandableListAdapter（此，mExpandableListTitle，mExpandableListData）；
setAdapter（mExpandableListAdapter）；
mExpandableListView.setOnGroupExpandListener（新的ExpandableListView.OnGroupExpandListener（）{
@凌驾
public void onGroupExpand（int groupPosition）{
getSupportActionBar（）.setTitle（mExpandableListTitle.get（groupPosition.toString（））；
}
});
mExpandableListView.setOnGroupCollapseListener（新的ExpandableListView.OnGroupCollapseListener（）{
@凌驾
公共void-onGroupCollapse（int-groupPosition）{
getSupportActionBar（）.setTitle（R.string.film_体裁）；
}
});
mExpandableListView.setOnChildClickListener（新的ExpandableListView.OnChildClickListener（）{
@凌驾
公共布尔onChildClick（ExpandableListView父视图，视图v，
int groupPosition、int childPosition、long id）{
字符串selectedItem=（（列表）（mExpandableListData.get（mExpandableListTitle.get（groupPosition）））
.get（childPosition.toString（）；
getSupportActionBar（）.setTitle（selectedItem）；
if（items[0].equals（mExpandableListTitle.get（groupPosition）））{
mNavigationManager.showFragmentAction（selectedItem）；
}else if（items[1].equals（mExpandableListTitle.get（groupPosition）））{
mNavigationManager.showFragmentComicle（selectedItem）；
}else if（items[2].equals（mExpandableListTitle.get（groupPosition）））{
mNavigationManager.showFragment戏剧性（selectedItem）；
}else if（items[3].equals（mExpandableListTitle.get（groupPosition）））{
mNavigationManager.showFragmentMusic（selectedItem）；
}else if（items[4].equals（mExpandableListTitle.get（groupPosition）））{
mNavigationManager.showFragmentThriller（selectedItem）；
}否则{
抛出新的IllegalArgumentException（“不支持的片段类型”）；
}
mDrawerLayout.closeDrawer（重力compat.START）；
返回false；
}
});
}

自定义可扩展适配器

public class CustomExpandableListAdapter extends BaseExpandableListAdapter {

private Context mContext;
private List<String> mExpandableListTitle;
private Map<String, List<String>> mExpandableListDetail;
private LayoutInflater mLayoutInflater;
private Map<String, List<String>> mExpandableSecondListData;
public CustomExpandableListAdapter(Context context, List<String> expandableListTitle,
                                   Map<String, List<String>> expandableListDetail) {
    mContext = context;
    mExpandableListTitle = expandableListTitle;
    mExpandableListDetail = expandableListDetail;
    mLayoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    System.out.println("expandable"+mExpandableListTitle+mExpandableListDetail);






}

@Override
public Object getChild(int listPosition, int expandedListPosition) {
    return mExpandableListDetail.get(mExpandableListTitle.get(listPosition))
        .get(expandedListPosition);
}

@Override
public long getChildId(int listPosition, int expandedListPosition) {

    return expandedListPosition;
}

@Override
public View getChildView(int listPosition, final int expandedListPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    final String expandedListText = (String) getChild(listPosition, expandedListPosition);
    if (convertView == null) {
        convertView = mLayoutInflater.inflate(R.layout.list_item, null);
    }
    TextView expandedListTextView = (TextView) convertView
        .findViewById(R.id.expandedListItem);
    expandedListTextView.setText(expandedListText);
    CustomExpListView SecondLevelexplv = new CustomExpListView(mContext);
    SecondLevelexplv.setAdapter(new SecondExpandableListAdapter(mContext));
    SecondLevelexplv.setGroupIndicator(null);

    return convertView;
}

@Override
public int getChildrenCount(int listPosition) {
    return mExpandableListDetail.get(mExpandableListTitle.get(listPosition))
        .size();
}

@Override
public Object getGroup(int listPosition) {
    return mExpandableListTitle.get(listPosition);
}

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

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

@Override
public View getGroupView(int listPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String listTitle = (String) getGroup(listPosition);
    if (convertView == null) {
        convertView = mLayoutInflater.inflate(R.layout.list_group, null);
    }
    final TextView listTitleTextView = (TextView) convertView
        .findViewById(R.id.listTitle);
    listTitleTextView.setTypeface(null, Typeface.BOLD);
    listTitleTextView.setText(listTitle);

    return convertView;
}

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

@Override
public boolean isChildSelectable(int listPosition, int expandedListPosition) {
    return true;
}

公共类CustomExpandableListAdapter扩展了BaseExpandableListAdapter{
私有上下文；
私有列表mExpandableListTitle；
私有地图mExpandableListDetail；
私人停车场平面布置；
私有地图mExpandableSecondListData；
公共CustomExpandableListAdapter（上下文、列表expandableListTitle、，
地图可展开列表（详细信息）{
mContext=上下文；
mExpandableListTitle=expandableListTitle；
mExpandableListDetail=expandableListDetail；
mLayoutInflater=（LayoutInflater）mContext.getSystemService（Context.LAYOUT\u INFLATER\u SERVICE）；
System.out.println（“可扩展”+mExpandableListTitle+mExpandableListDetail）；
}
@凌驾
公共对象getChild（int listPosition，int expandedListPosition）{
返回mExpandableListDetail.get（mExpandableListTitle.get（listPosition））
.get（expandedListPosition）；
}
@凌驾
公共长getChildId（int-listPosition、int-expandedListPosition）{
返回expandedListPosition；
}
@凌驾
公共视图getChildView（int listPosition，最终int expandedListPosition，
布尔值isLastChild、视图转换视图、视图组父级）{
最终字符串expandedListText=（字符串）getChild（listPosition，expandedListPosition）；
if（convertView==null）{
convertView=MLAYOUTINGER.充气（R.layout.list_项，空）；
}
TextView expandedListTextView=（TextView）convertView
.findViewById（R.id.expandedListItem）；
扩展列表