【android】listview改变选中行背景图片

目标：当item选中时，改变其背景图片。效果图如下：

直接在listview的xml文件中使用listselector：

< ListView
    android:id = "@+id/listTV"
    android:layout_width = "349px"
    android:layout_height = "fill_parent"
    android:layout_marginLeft = "26px"
    android:layout_marginTop = "20px"
    android:listSelector = "@drawable/tvitembg"
    android:focusable = "true" >
</ ListView >

然后另外定义，tvitembg.xml文件定义其背景图片：

<? xml  version = "1.0"  encoding = "utf-8"  ?>
< selector  xmlns:android = "http://schemas.android.com/apk/res/android" >
<!-- 没有焦点时的背景图片 -->
<!--
<item
    android:state_window_focused="false"/>
-->
<!-- 非触摸模式下获得焦点并单击时的背景图片 -->
< item
    android:state_focused = "true"
    android:state_pressed = "true"
    android:drawable = "@drawable/bg" />
<!-- 触摸模式下单击时的背景图片 -->
<!--
  <item
    android:state_focused="false"
    android:state_pressed="true"
    android:drawable="@drawable/pic3" />
-->
<!--选中时的图片背景  -->
< item
    android:state_selected = "true"
    android:drawable = "@drawable/bg" />
<!--获得焦点时的图片背景  -->
< item
    android:state_focused = "true"
    android:drawable = "@drawable/bg" />
</ selector >

这样就OK啦~~