android ScrollView中嵌套GridView，ListView只显示一行的解决办法

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原文地址：

http://blog.csdn.net/young0325/article/details/9831587

注：本文是由网上大神分享的解决方案汇集而成

方法一：

重写ListView、GridView：

重写ListView：

public class MyListView extends ListView {        public MyListView(Context context) {          // TODO Auto-generated method stub          super(context);      }        public MyListView(Context context, AttributeSet attrs) {          // TODO Auto-generated method stub          super(context, attrs);      }        public MyListView(Context context, AttributeSet attrs, int defStyle) {          // TODO Auto-generated method stub          super(context, attrs, defStyle);      }        @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);      }  }

重写GridView：

/**  * 自定义gridview，解决ListView中嵌套gridview显示不正常的问题（1行半）  * @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);           }                  @Override           public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {                      int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,                       MeasureSpec.AT_MOST);               super.onMeasure(widthMeasureSpec, expandSpec);           }   }

xml中的布局：

<com.xxx.MyGridView                android:id="@+id/mygridview"                android:layout_width="fill_parent"                android:layout_height="wrap_content"                android:gravity="center"                android:horizontalSpacing="5dp"                android:numColumns="4"                android:stretchMode="columnWidth"                android:verticalSpacing="6dp" />

此方案亲测有效。

方法二：通过计算出来ListView或者GridView中的子列高度和进行显示：

public void setListViewHeightBasedOnChildren(ListView listView) {        ListAdapter listAdapter = listView.getAdapter();         if (listAdapter == null) {            return;        }          int totalHeight = 0;        for (int i = 0; i < listAdapter.getCount(); i++) {            View listItem = listAdapter.getView(i, null, listView);            listItem.measure(0, 0);            totalHeight += listItem.getMeasuredHeight();        }          ViewGroup.LayoutParams params = listView.getLayoutParams();        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));        ((MarginLayoutParams)params).setMargins(10, 10, 10, 10);      listView.setLayoutParams(params);    }

此方案，本人未测试！！

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