原生的SwitchCompat控件如下图，不说不堪入目，也算是不敢恭维了。开个玩笑...

所以我们就需要对SwitchCompat进行自定义风格，效果如下图

代码如下

    <androidx.appcompat.widget.SwitchCompat
        android:id="@+id/switch_compat"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:thumb="@drawable/switch_thumb"
        app:switchMinWidth="60dp"
        app:track="@drawable/switch_track_style" />

从上面的xml代码来看其实只需要定制两个东西一个是thumb，另一个是track

switch_thumb

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <solid android:color="@color/white" />
    <size
        android:width="50dp"
        android:height="50dp" />
    <!-- 这里的5dp边距的作用是，圆点在轨道里面的边距，这样的效果感觉更好 -->
    <stroke
        android:width="5dp"
        android:color="#00000000" />
    <corners android:radius="15dp" />
</shape>

switch_track_style

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/switch_common_track_selected" android:state_checked="true" />
    <item android:drawable="@drawable/switch_common_track_unselected" android:state_checked="false" />
</selector>

switch_track_style里面有两个背景如下

switch_common_track_selected

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item >
        <shape android:shape="rectangle">
            <solid android:color="#23c3ff" />
            <size android:height="30dp" />
            <stroke
                android:color="#00000000" />
            <corners android:radius="30dp" />
        </shape>
    </item>
</layer-list>

switch_common_track_unselected

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#4D8E8E8E" />
            <size android:height="30dp" />
            <stroke
                android:color="#00000000" />
            <corners android:radius="30dp" />
        </shape>
    </item>
</layer-list>

完活了！！！