答案 0 :(得分：1)
这是带有ExpandableListview的导航抽屉
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;
}
});
}
private void setupDrawer() {
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.drawer_open, R.string.drawer_close) {
/** Called when a drawer has settled in a completely open state. */
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
getSupportActionBar().setTitle(R.string.film_genres);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
/** Called when a drawer has settled in a completely closed state. */
public void onDrawerClosed(View view) {
super.onDrawerClosed(view);
getSupportActionBar().setTitle(mActivityTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
mDrawerToggle.setDrawerIndicatorEnabled(true);
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
// Activate the navigation drawer toggle
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
有关详情，请参阅此https://github.com/msahakyan/expandable-navigation-drawer