茴香豆的第五种写法---设置ExpandableListView系统自带图标按下效果
1 编写groupindicator_selector.xml如下:
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_expanded="true" android:drawable="@drawable/right" /> <item android:drawable="@drawable/down" /> </selector>
再次指定ExpandableListView展开和收缩时的不同图标
2 在布局文件中为<ExpandableListView指定groupIndicator
<ExpandableListView android:id="@+id/expandableListView" android:layout_width="fill_parent" android:layout_height="wrap_content" android:groupIndicator="@drawable/groupindicator_selector" />
