解决ScrollView中嵌套Gridview显示不正常的问题

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先建立一个自定义的MyGridView类。
package com.dwz1676.tujiaproject.view;
import android.content.Context;import android.util.AttributeSet;import android.widget.GridView;/** * 解决ScrollView中嵌套Gridview显示不正常的问题 * * @author wangyx * @version 1.0.0 2012-9-14 */public class MyGridView extends GridView {public MyGridView(Context context, AttributeSet attrs) {super(context, attrs);    }public MyGridView(Context context) {super(context);    }public MyGridView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);    }@Overridepublic void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,                MeasureSpec.AT_MOST);super.onMeasure(widthMeasureSpec, expandSpec);    }}
然后，通过　setListViewHeightBasedOnChildrer()来设置正确的显示高度。
public static void setListViewHeightBasedOnChildren(AbsListView listView) {// 获取ListView对应的AdapterListAdapter listAdapter = listView.getAdapter();if (listAdapter == null) {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);// 计算子项View 的宽高listItem.measure(0, 0);// 统计所有子项的总高度totalHeight += listItem.getMeasuredHeight();    }    ViewGroup.LayoutParams params = listView.getLayoutParams();if(listView instanceof ListView)        params.height = totalHeight + (((ListView)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);}
最后，在setAdapter之后调用一下setListViewHeightBasedOnChildrer()方法即可
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