在做android项目中遇到一个bug，GridView嵌套在ScrollView里只有一行的问题。下面小编在网上找到了解决方法，具体方法如下所示：
方法一：就是上面说的通过计算出来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(15, 15, 15, 15); listView.setLayoutParams(params); }
方法二：重写GridView和ListView的onMeasure方法，直接给它一个足够大的高度：
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:
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" />
以上所述是小编给大家介绍的Android 中 GridView嵌套在ScrollView里只有一行的解决方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！