效果图

直接上代码

1. 定义按钮开的状态  switch_on

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

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

    android:shape="oval">

<solid android:color="#F64245" />

<size android:width="@dimen/dp_18" android:height="@dimen/dp_18" />

</shape>

2.定义按钮关的状态 switch_off

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

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

android:shape="oval">

<solid android:color="#A2A2A2" />

<size android:width="@dimen/dp_18" android:height="@dimen/dp_18" />

</shape>

3.创建按钮状态选择器

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

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

<item android:drawable="@drawable/switch_on" android:state_checked="true" />

<item android:drawable="@drawable/switch_off" android:state_checked="false" />

</selector>

4.定义开关开启状态的背景色switch_bg_on

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

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

android:shape="rectangle">

<solid android:color="#ffffff" />

<size android:width="@dimen/dp_42" android:height="@dimen/dp_18" />

<stroke android:width="@dimen/dp_1" android:color="#F64245" />

<corners android:radius="@dimen/dp_13" />

</shape>

5.定义开关关闭状态的背景色switch_bg_off

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

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

android:shape="rectangle">

<solid android:color="#ffffff" />

<size android:width="@dimen/dp_42" android:height="@dimen/dp_18" />

<stroke android:width="@dimen/dp_1" android:color="#CFCFCF" />

<corners android:radius="@dimen/dp_13" />

</shape>

6.创建按钮背景状态选择器

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

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

<item android:drawable="@drawable/switch_bg_on" android:state_checked="true" />

<item android:drawable="@drawable/switch_bg_off" android:state_checked="false" />

</selector>

7.应用和其他设置

<Switch

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:switchMinWidth="@dimen/dp_46"

    android:showText="false"

    android:thumb="@drawable/switch_selector"

    android:track="@drawable/switch_bg_selector" />

文字的显示与隐藏   android:showText="false"

调证控件大小 wigth 和 height 不起作用,所以用android:switchMinWidth