Android 中ScrollView与ListView冲突问题的解决办法

public class MyListView extends ListView 
{ 
  public MyListView(Context context) 
  { 
    super(context); 
    // TODO Auto-generated constructor stub 
  } 
 
  public MyListView(Context context, AttributeSet attrs) 
  { 
    super(context, attrs); 
    // TODO Auto-generated constructor stub 
  } 
 
  public MyListView(Context context, AttributeSet attrs, int defStyle) 
  { 
    super(context, attrs, defStyle); 
    // TODO Auto-generated constructor stub 
  } 
 
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) 
  { 
    int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE    2, MeasureSpec.AT_MOST); 
    super.onMeasure(widthMeasureSpec, expandSpec); 
  } 
}