ExpandableListView

 //创建一个BaseExpandableListAdapter对象
        ExpandableListAdapter adapter = new BaseExpandableListAdapter()
        {
            
            public Object getChild(int groupPosition, int childPosition)
            {
                return arms[groupPosition][childPosition];
            }
            
            @Override
            public long getChildId(int groupPosition, int childPosition)
            {
                return childPosition;
            }
            
            @Override
            public int getChildrenCount(int groupPosition)
            {
                return arms[groupPosition].length;
            }
            
            private TextView getTextView()
            {
                AbsListView.LayoutParams lp = new AbsListView.LayoutParams(
                        ViewGroup.LayoutParams.MATCH_PARENT, 64);
                TextView textView = new TextView(MainActivity.this);
                textView.setLayoutParams(lp);
                textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
                textView.setPadding(36, 0, 0, 0);
                textView.setTextSize(20);
                return textView;
            }
            

           // 该方法决定每个子选项的外观
            @Override
            public View getChildView(int groupPosition, int childPosition,
                                     boolean isLastChild, View convertView, ViewGroup parent)
            {
                TextView textView = getTextView();
                textView.setText(getChild(groupPosition, childPosition)
                        .toString());
                return textView;
            }
           

            // 获取指定组位置处的组数据
            @Override
            public Object getGroup(int groupPosition)
            {
                return armTypes[groupPosition];//设置显示数据1
            }
            @Override
            public int getGroupCount()
            {
                return armTypes.length;//设置组长度
            }
            @Override
            public long getGroupId(int groupPosition)
            {
                return groupPosition;//设置组位置
            }
            

/*******************************设置可改*****************************************/
            // 该方法决定每个组选项的外观
            @Override
            public View getGroupView(int groupPosition, boolean isExpanded,
                                     View convertView, ViewGroup parent)
            {
                LinearLayout ll = new LinearLayout(MainActivity.this);
                ll.setOrientation(0);
                ImageView logo = new ImageView(MainActivity.this);
                logo.setImageResource(logos[groupPosition]);
                ll.addView(logo);
                TextView textView = getTextView();
                textView.setText(getGroup(groupPosition).toString());
                ll.addView(textView);
                return ll;
            }
/*************************************8*************************************************/           

           @Override
            public boolean isChildSelectable(int groupPosition,
                                             int childPosition)
            {
                return true;
            }
            @Override
            public boolean hasStableIds()
            {
                return true;
            }
        };
        ExpandableListView expandListView = (ExpandableListView) findViewById(R.id.list);
        expandListView.setAdapter(adapter);
    }