scrollview中嵌套listview 数据显示不全

处理方法一：
1、当Item的布局是LinerarLayout时：(此方法不推荐)
private void showAllListView()
{
if (lotteryStyleAdapter != null)
{


int totalHeight = 0;


for (int i = 0; i < lotteryStyleAdapter.getCount(); i++)
{


View listItem = lotteryStyleAdapter.getView(i, null, listview);


listItem.measure(0, 0);


totalHeight += listItem.getMeasuredHeight();


}


ViewGroup.LayoutParams params = listview.getLayoutParams();


params.height = totalHeight
+ (listview.getDividerHeight() * (lotteryStyleAdapter
.getCount() - 1));


listview.setLayoutParams(params);


}
}

2、当Item布局是其他布局(包含LinearLayout):(推荐使用）


2.1 重写ListView:


package com.test.lottery.view;


import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;


/**
 * 自定义的ListView 用于ScrollView嵌套ListView时 ListView展示不全
 */
public class AllListView extends ListView
{


public AllListView(Context context, AttributeSet attrs)
{
super(context, attrs);
}


public void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
int mExpandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, mExpandSpec);
}


}
2.2、书写布局文件是用自定义的AllListView代替ListView使用

方法二：

ScrollView中嵌套ListView，使得listview上下滑动卡顿现象

最近项目中发现会出现内存溢出展开listview导致 现在换了一种方式如下：

使用方式在adapter更新数据后设置

mBusinessMoreRecommendAdapter.updateBusinessMoreRecommentData(mHitilistEntities);
SetListviewItemHeigtUtil.setListViewHeightBasedOnChildren(lvBusinessRecommend);

/**ScrollView嵌套ListView只显示一行
 * 动态改变ListView的高度
 * Created by jiangbing on 2016/3/9.
 */
public class SetListviewItemHeigtUtil {

    public static void setListViewHeightBasedOnChildren(ListView listView) {
          //获取ListView对应的Adapter
        ListAdapter listAdapter = listView.getAdapter();
        if (listAdapter == null) {
          // pre-condition
            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);
            listItem.measure(0, 0); //计算子项View 的宽高
            totalHeight += listItem.getMeasuredHeight(); //统计所有子项的总高度
        }

        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);
    }
}