public static void getTotalHeightofListView(ListView listView) {  
    ListAdapter mAdapter = listView.getAdapter()；   
   if (mAdapter == null) {  
       return;  
   }  
    int totalHeight = 0;  
    for (int i = 0; i <</SPAN> mAdapter.getCount(); i++) {  
        View mView = mAdapter.getView(i, null, listView);  
        mView.measure(  
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),  
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));  
        //mView.measure(0, 0);  
        totalHeight += mView.getMeasuredHeight();  
        Log.w("HEIGHT" + i, String.valueOf(totalHeight));  
    }  
    ViewGroup.LayoutParams params = listView.getLayoutParams();  
    params.height = totalHeight           + (listView.getDividerHeight() * (mAdapter.getCount() - 1));  
    listView.setLayoutParams(params);  
    listView.requestLayout();      
} 

1、listview的item的根布局一定要是LinearLayout；
2、调用这个方法需要在适配器数据加载更新之后；代码如下：
[java] view plaincopy在CODE上查看代码片派生到我的代码片
mAdapter.notifyDataSetChanged();
Function.getTotalHeightofListView(mListView);
3、获取item的高度也可以用注释掉的代码，效果一样。

<ListView  
             android:id="@+id/getInfo"  
             android:layout_width="fill_parent"  
             android:layout_height="fill_parent"  
             android:cacheColorHint="#FFF4F4F4"  
             android:dividerHeight="0.0dip"   
             android:fadingEdge="none" // 边界黑边  
             />  

public void setListViewHeightBasedOnChildren(ListView listView) {
// 获取ListView对应的Adapter
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
return;
}

    int totalHeight = 0;     
    for (int i = 0, len = listAdapter.getCount(); i < len; i++) {     
        // listAdapter.getCount()返回数据项的数目     
        View listItem = listAdapter.getView(i, null, listView);     
        // 计算子项View 的宽高     
        listItem.measure(0, 0);      
        // 统计所有子项的总高度     
        totalHeight += listItem.getMeasuredHeight();      
    }     

    ViewGroup.LayoutParams params = listView.getLayoutParams();     
    params.height = totalHeight+ (listView.getDividerHeight() * (listAdapter.getCount() - 1));     
    // listView.getDividerHeight()获取子项间分隔符占用的高度     
    // params.height最后得到整个ListView完整显示需要的高度     
    listView.setLayoutParams(params);     
}  

笔记：动态获取ListView高度