ScrollView中嵌入ListView，GridView冲突的解决（让ListView全显示出来）

ScrollView中嵌入原生ListView或GridView，会出现ListView，GridView显示不全的问题。

解决方法：重新构造一个ListView或GridView，重写OnMeasure()方法：

// ListView

 import android.widget.ListView;  

 public class MyListView extends ListView{  

     public MyListView(android.content.Context context,android.util.AttributeSet attrs){
         super(context, attrs);
     }  

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

     }  

 } 

//GridView

 public class MyGridView extends GridView {

     public MyGridView(Context context) {
         super(context);
         // TODO Auto-generated constructor stub
     }

     public MyGridView(Context context, AttributeSet attrs) {
         super(context, attrs);
         // TODO Auto-generated constructor stub
     }

     public MyGridView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
         // TODO Auto-generated constructor stub
     }

     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
         // TODO Auto-generated method stub

         int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,MeasureSpec.AT_MOST);

         super.onMeasure(widthMeasureSpec, expandSpec);
     }