ScrollView 嵌套ListView 滑动冲突，与显示不全

import android.content.Context;import android.util.AttributeSet;import android.widget.ListView;/** *  * @author jiarh *2014-8-14 */public class UserListView extends ListView {    public UserListView(Context context) {        super(context);}public UserListView(Context context, AttributeSet attrs) {        super(context, attrs);}public UserListView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);}@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,                        MeasureSpec.AT_MOST);        super.onMeasure(widthMeasureSpec, expandSpec);}}