zhouanzhuojinjie 2012-04-15
问题:
在Android开发当中经常会用到了需要ScrollView嵌套GridView或者是ListView的情况,由于这两款控件都自带滚动条,当他们碰到一起的时候便会出问题,即GridView或ListView会显示不全。
解决方案:
自定义GridView或ListView,去掉其滚动条。一下为GridView的例子。
复写GridView:
package com.yang.widget; import android.content.Context; import android.util.AttributeSet; import android.widget.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); } } package com.yang.widget; import android.content.Context; import android.util.AttributeSet; import android.widget.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); } }
在布局文件当中使用自定义的GridView:
<com.yang.widget.MyGridView android:id="@id/bolg_category_gridview" 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" /> <com.yang.widget.MyGridView android:id="@id/bolg_category_gridview" 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" />