根据focus状态改变颜色

老是忘掉那个资源文件怎么写的，还是备注下好了

再次更新下，上次只是改变文字颜色，再添加一个改变背景

改变文字颜色

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

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true" android:color="@color/。。。" />
    <item android:state_focused="true" android:color="@color/。。。" />
    <item android:state_pressed="true" android:color="@color/。。。" />
    <item android:color="@color/...."></item><!--默认的颜色  -->
</selector>

改变背景图片（颜色改color）

<?xml version="1.0" encoding="UTF-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android">

<item android:state_focused="true"

android:state_pressed="true"

android:drawable="@drawable/button_focused" />

<item android:state_focused="false"

android:state_pressed="true"

android:drawable="@drawable/button_defocused" />

<item android:state_focused="true"

android:drawable="@drawable/button_focused" />

<item android:state_focused="false"

android:drawable="@drawable/button_defocused" />

</selector>