ScrollView 滚动条

    <style name="fa_SlideTabRecyclerView">
        <item name="android:scrollbarThumbVertical">@drawable/slide_tab_rv_scroll_thumbitem>
        <item name="android:scrollbarSize">@dimen/4dpitem>
        <item name="android:scrollbars">verticalitem>
        <item name="android:verticalScrollbarPosition">leftitem>
        <item name="android:fadeScrollbars">trueitem>
        <item name="android:paddingLeft">@dimen/10dpitem>
    style>

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape>
        <corners android:radius="3dp"/>
        <solid android:color="#ddebee"/>
    shape>
item>
layer-list>