我有一个包含FrameLayout的协调器布局，我为此框架布局设置了app：layout_behavior="@string/appbar_scrolling_view_behavior”。
但我想有一个按钮在这个片段是固定的，我不希望这个按钮有滚动。我应该怎么做呢？

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorPrimary"
android:fitsSystemWindows="true"
tools:openDrawer="end">

<androidx.coordinatorlayout.widget.CoordinatorLayout
    android:id="@+id/coordinator_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <!-- AppBarLayout is a wrapper for a Toolbar in order to apply scrolling effects. -->
    <!-- Note that AppBarLayout expects to be the first child nested within a CoordinatorLayout -->
    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true"
        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
        app:elevation="0dp">

        <!-- Toolbar is the actual app bar with text and the action items -->
        <include
            android:id="@+id/action_bar"
            layout="@layout/custom_action_bar" />
    </com.google.android.material.appbar.AppBarLayout>

    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/but_nav_bar"
        android:layout_marginTop="-25dp"
        android:layout_marginBottom="@dimen/_30sdp"
        android:paddingBottom="@dimen/_30sdp"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
   
</androidx.coordinatorlayout.widget.CoordinatorLayout>

<include layout="@layout/bottom_navigation_layout" />

<include layout="@layout/navigation_bar" />

</androidx.drawerlayout.widget.DrawerLayout>

这是myFragment的代码

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/shopsList"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" />
     <Button
         android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        text="button"/>
 </RelativeLayout>