ListView或GridView与ScrollView共存，高度显示问题

自定义ListView(或GridView)，重写里面的OnMeasure()方法重新计算高度

public class MyListView extends ListView {

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

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpaec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpaec);
}

}
计算listView高度（各项不等高情况）：
/**
* 动态设置ListView高度(各表项不等高)
*
* @param listView
*/
private void setListViewHeightBasedOnItems(ListView listView) {
ListAdapter listAdapter = listView.getAdapter(); // 获取适配器
if (listAdapter == null) {
return;
}
int count = listAdapter.getCount(); // item数量
int totalHeight = 0;
for (int i = 0; i < count; i++) {
View item = listAdapter.getView(i, null, listView);
item.measure(0, 0);
int height = item.getMeasuredHeight();
totalHeight += height;
item = null;
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (count - 1)); // 计算ListView高度
listView.setLayoutParams(params); // 设置ListView高度
}


若listView各项等高，可不重新定义listView，直接在初始话listView 时计算高度，亦可实现相应的效果：
/**
* 动态设置ListView高度(各列表项等高)
*
* @param listView
*/
private void setListViewHeightBasedOnItems2(ListView listView) {
ListAdapter listAdapter = listView.getAdapter(); // 获取适配器
if (listAdapter == null) {
return;
}
int count = listAdapter.getCount(); // item数量
View item0 = listAdapter.getView(0, null, listView); // 选取首个item
item0.measure(0, 0);
int itemHeight = item0.getMeasuredHeight(); // 获取首个列表项高度
int dividerHeight = listView.getDividerHeight(); // 获取分割线高度
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = (itemHeight + dividerHeight) * count - dividerHeight; // 计算ListView高度
listView.setLayoutParams(params); // 设置ListView高度
}