小编use*_*937的帖子

我想在父列表中只有一个项目一次扩展,我的onCreate代码目前如下.(它按我的意思工作,但是一次只打开一个父节点的方法不起作用)

public void onCreate(Bundle savedInstanceState) {
        try{
             super.onCreate(savedInstanceState);
             setContentView(R.layout.main);

        final SimpleExpandableListAdapter expListAdapter =
            new SimpleExpandableListAdapter(
                        //FOR LEVEL 1 SCREEN
                    this,
                    createGroupList(),              // METHOD TO CREATE PARENTLIST Creating group List.
                    R.layout.group_row,             // REF TO XML FILENAME.         
                    new String[] { "Group Item" },  // STRING ARRAY HOLDING ONE KEY THAT REF'S ALL PARENT LIST ITEMS.
                    new int[] { R.id.row_name },    // REF TO I.D. OF PARENT XML. ID of each group item.-Data under the key goes into this TextView.                    
                    createChildList(),              // METHOD …