【安卓笔记】自定义toggleButton

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

<ToggleButton 
        android:id="@+id/tb"
        android:background="@drawable/toggle_selector"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textOn=""
        android:textOff=""
        android:checked="true"
        />