Android ListView里设置默认Item的背景颜色

<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

  <item android:state_window_focused="false" android:state_selected="true" android:drawable="@color/light_blue" />

  <item android:state_selected="true" android:drawable="@color/light_blue" />

  <item android:state_pressed="true" android:state_selected="false" android:drawable="@color/light_blue" />

  <item android:state_selected="false" android:drawable="@color/white" />

</selector>