ListView中item点击去除背景色

1.在res目录里的values目录下新建关于颜色的XML文件

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <color name="background_color">#ffffff</color>

</resources>

2.在values下再新建一个文件夹然后新建XML文件

<?xml version="1.0" encoding="utf-8"?>
<selector
  xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@color/list_item_selected" />
    <item android:state_focused="true" android:drawable="@color/list_item_selected" />
    <item android:drawable="@color/list_item_normal" />
</selector>