Java 类android.widget.ExpandableListView.OnGroupClickListener 实例源码

private void initListView() {
    this.mStarAdapter = new StarAdapter(this, this.mStarName);
    this.mStarAdapter.setStarBookCallback(this.mBooedkProgramsCallback);
    this.mListView.setAdapter(this.mStarAdapter);
    DisplayMetrics displayMetrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
    int screenWidth = displayMetrics.widthPixels;
    this.mListView.setHeaderLayoutParams(new LayoutParams(screenWidth, (int) (9.0f * (((float) screenWidth) / 16.0f))));
    this.mListView.setScrollViewCallbacks(this);
    ((ExpandableListView) this.mListView.getRootView()).setGroupIndicator(null);
    ((ExpandableListView) this.mListView.getRootView()).setOnGroupClickListener(new OnGroupClickListener(this) {
        final /* synthetic */ StarActivity this$0;

        {
            if (HotFix.PREVENT_VERIFY) {
                System.out.println(VerifyLoad.class);
            }
            this.this$0 = this$0;
        }

        public boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {
            return true;
        }
    });
}

/**
 * 初始化可拓展列表
 */
private void initExpandListView() {
    statusAdapter = new ExpandLvAdapter(context, getListData());
    expandlistView.setAdapter(statusAdapter);
    expandlistView.setGroupIndicator(null); // 去掉默认带的箭头
    expandlistView.setSelection(0);// 设置默认选中项
    // 遍历所有group,将所有项设置成默认展开
    final int groupCount = expandlistView.getCount();
    for (int i = 0; i < groupCount; i++) {
        expandlistView.expandGroup(i);
    }

    expandlistView.setOnGroupClickListener(new OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {
            if(parent.isGroupExpanded(groupPosition)) {
                parent.collapseGroup(groupPosition);
            } else {
                parent.expandGroup(groupPosition);
            }
            return true;
        }
    });
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    elv  = (ExpandableListView) findViewById(R.id.lvExp1);
    elv.setFocusable(false);

    /** 
     * THIS CAN BE USED IN ACTIVITY OR FRAGMENTS
     * **/

    elv.setAdapter(new CustomELVAdapter(this, MainActivity.this, groupname, ImgBckgrnd, listinfo,data));



    elv.setOnGroupClickListener(new OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v,
                int groupPosition, long id) {
           /** 
            * TODO:return true to enable group click
            */

            // DO SOMETHING

            return false;
        }
    });

     }

/**
* @see ExpandableListView#setOnGroupClickListener(OnGroupClickListener)
*/
 public W setOnGroupClickListener(OnGroupClickListener onGroupClickListener) {
     mView.setOnGroupClickListener(onGroupClickListener);
     return (W) this;
 }

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) 
{
    view = inflater.inflate(R.layout.fragment_library, container, false);

    list = (ExpandableListView) view.findViewById(R.id.list);

    list.setOnGroupClickListener(new OnGroupClickListener() 
    {
           @Override
           public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) 
           {
            if (list.isGroupExpanded(groupPosition))
            {
                return false;
            }
            else
            {
                if (artists == null) return true;
                LibraryArtist artist = artists.get(groupPosition);
                if (artist == null) return true;

                if (artist.getAlbums() == null)
                {
                    try 
                    {
                        artist.initAlbums(app.oMPDAsyncHelper.oMPD.getAlbums(artist, true));
                    } 
                    catch (MPDServerException e) 
                    {
                        artist.initAlbums(null);
                        e.printStackTrace();
                    }
                }

                if (albumToDisplay != null)
                {
                    privateDisplayAlbum(albumToDisplay, artist, groupPosition);
                    albumToDisplay = null;
                }

                return false;
            }
           }
       });

    loadingView = view.findViewById(R.id.loadingLayout);
    loadingTextView = (TextView) view.findViewById(R.id.loadingText);
    loadingTextView.setText(R.string.library_loading_artists);
    noResultView = view.findViewById(R.id.noResultLayout);

    pullToRefreshLayout = (PullToRefreshLayout) view.findViewById(R.id.pullToRefresh);

    lastPosition = -1;
    if (savedInstanceState != null) 
    {
        lastPosition = savedInstanceState.getInt(EXTRA_POSITION, 0);
    }

    return view;
}

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

    List<GroupItem> items = new ArrayList<GroupItem>();

    // Populate our list with groups and it's children
    for(int i = 1; i < 100; i++) {
        GroupItem item = new GroupItem();

        item.title = "Group " + i;

        for(int j = 0; j < i; j++) {
            ChildItem child = new ChildItem();
            child.title = "Awesome item " + j;
            child.hint = "Too awesome";

            item.items.add(child);
        }

        items.add(item);
    }

    adapter = new ExampleAdapter(this);
    adapter.setData(items);

    listView = (AnimatedExpandableListView) findViewById(R.id.listView);
    listView.setAdapter(adapter);

    // In order to show animations, we need to use a custom click handler
    // for our ExpandableListView.
    listView.setOnGroupClickListener(new OnGroupClickListener() {

        @Override
        public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
            // We call collapseGroupWithAnimation(int) and
            // expandGroupWithAnimation(int) to animate group 
            // expansion/collapse.
            if (listView.isGroupExpanded(groupPosition)) {
                listView.collapseGroupWithAnimation(groupPosition);
            } else {
                listView.expandGroupWithAnimation(groupPosition);
            }
            return true;
        }

    });
}