button按钮更改背景功能实现

1、在drawable文件家中建立文件btn_style_green.xml文件

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

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


    <item android:state_enabled="false"><shape android:shape="rectangle">
            <corners android:radius="@dimen/button_corner_size" />


            <solid android:color="@color/green_btn_color_disable" />
        </shape></item>
    <item android:state_pressed="true"><shape android:shape="rectangle">
            <corners android:radius="@dimen/button_corner_size" />


            <solid android:color="@color/green_btn_color_pressed" />
        </shape></item>
    <item><shape android:shape="rectangle">
            <corners android:radius="@dimen/button_corner_size" />


            <solid android:color="@color/green_btn_color_normal" />
        </shape></item>

</selector>

2、在button布局文件中添加backgroud属性

android:background="@drawable/btn_style_green"