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android ExpandableListView简单应用

  首先我们还是来看一些案例,还是拿搜狐新闻客户端,因为我天天上下班没事爱看这个东东,因为上班没时间看新闻,上下班路途之余浏览下新闻打发时间嘛. \         \
                         
看这个效果挺棒吧,其实实现起来也不难,我简单说明下.
首先我们用到的控件是:ExpandableListView
布局文件:
[java] 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 
 
    <!-- 
     android:groupIndicator="@null" 取消默认图片 
    android:childIndicatorLeft 设置孩子左边间距 
    android:dividerHeight 这个高度一定要设置,不然显示不出来分割线,估计默认为0 吧 
     android:childDivider="@drawable/child_bg" 这个直接引color,或者图片会导致整个孩子背景都为这个颜色  ,不知道原因,如果有谁知道,请Give me say. 
    --> 
 
    <ExpandableListView 
        android:id="@+id/expandablelist" 
        android:layout_width="match_parent" 
        android:layout_height="match_parent" 
        android:cacheColorHint="@null" 
        android:childDivider="@drawable/child_bg" 
        android:childIndicatorLeft="0dp" 
        android:divider="@color/Grey" 
        android:dividerHeight="1dp" 
        android:groupIndicator="@null" 
        android:scrollbarAlwaysDrawHorizontalTrack="true" > 
    </ExpandableListView> 
 
</RelativeLayout> 
MyexpandableListAdapter.java
[java] 
/***
     * 数据源
     * 
     * @author Administrator
     * 
     */ 
    class MyexpandableListAdapter extends BaseExpandableListAdapter { 
        private Context context; 
        private LayoutInflater inflater; 
 
        public MyexpandableListAdapter(Context context) { 
            this.context = context; 
            inflater = LayoutInflater.from(context); 
        } 
 
        // 返回父列表个数 
        @Override 
        public int getGroupCount() { 
            return groupList.size(); 
        } 
 
        // 返回子列表个数 
        @Override 
        public int getChildrenCount(int groupPosition) { 
            return childList.get(groupPosition).size(); 
        } 
 
        @Override 
        public Object getGroup(int groupPosition) { 
 
            return groupList.get(groupPosition); 
        } 
 
        @Override 
        public Object getChild(int groupPosition, int childPosition) { 
            return childList.get(groupPosition).get(childPosition); 
        } 
 
        @Override 
        public long getGroupId(int groupPosition) { 
            return groupPosition; 
        } 
 
        @Override 
        public long getChildId(int groupPosition, int childPosition) { 
            return childPosition; 
        } 
 
        @Override 
        public boolean hasStableIds() { 
 
            return true; 
        } 
 
        @Override 
        public View getGroupView(int groupPosition, boolean isExpanded, 
                View convertView, ViewGroup parent) { 
            GroupHolder groupHolder = null; 
            if (convertView == null) { 
                groupHolder = new GroupHolder(); 
                convertView = inflater.inflate(R.layout.group, null); 
                groupHolder.textView = (TextView) convertView 
                        .findViewById(R.id.group); 
                groupHolder.imageView = (ImageView) convertView 
                        .findViewById(R.id.

补充:移动开发 , Android ,
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