HideBottomViewOnScrollBehavior not working on recyclerview item expand/collapse

I am trying to hide text view on scroll down and show on scroll up it's working fine if I have an item like 10 or 15 but it's not working the same if I have less item

in recyclerview, I have expanded/collapse functionality so it's not the same sometimes

textview not hiding/visible some times I don't understand I added this line to my view which I want to hide/show on scroll

app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"

XML

<androidx.coordinatorlayout.widget.CoordinatorLayout
        android:id="@+id/lnMain"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@mipmap/bg"
        tools:context=".tab.history.view.HistoryFragment">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/mAppBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:elevation="0dp">

            <RelativeLayout
                android:id="@+id/lnActionBar"
                android:layout_width="match_parent"
                android:layout_height="?android:attr/actionBarSize"
                android:background="@color/colorPrimary">

                <TextView
                    android:id="@+id/tvtitle"
                    style="@style/fontMedium"
                    android:layout_width="wrap_content"
                    android:layout_height="?android:attr/actionBarSize"
                    android:layout_centerHorizontal="true"
                    android:gravity="center_vertical"
                    android:text="@string/beacon"
                    android:textColor="@color/white"
                    android:textSize="@dimen/header_font_size" />

            </RelativeLayout>

        </com.google.android.material.appbar.AppBarLayout>

       
    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rvBeacon"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipToPadding="false"
        android:overScrollMode="never"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        android:paddingBottom="@dimen/_40sdp"
        android:scrollbars="none"
        android:visibility="visible"
        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
        tools:itemCount="10"
        tools:listitem="@layout/raw_beacon" />

<TextView
            android:id="@+id/btnBack"
            style="@style/fontBold"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="@dimen/_10sdp"
            android:layout_marginBottom="@dimen/_20sdp"
            android:background="@drawable/background_button_yellow_20dp"
            android:contentDescription="@string/back_button"
            android:drawableStart="@drawable/ic_back"
            android:layout_gravity="bottom|center_horizontal"
            android:drawablePadding="@dimen/_5sdp"
            android:gravity="center"
            android:padding="@dimen/_10sdp"
            android:text="@string/back_to_search"
            android:textColor="@color/white"
            android:textSize="@dimen/button_font_size"
            android:visibility="@{!isScanning ? View.VISIBLE: View.GONE}"
            app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>

this is what I did so far but it's not working every time

Note:- Please not I have a recyclerview item which expands onclick so scroll and textview must behave according to that

Any help would be highly appriciated

i don't know why HideBottomViewOnScrollBehavior is not working for you

app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"

may be it's beacause you have a expand/collapse functionality since you have only recyclerview only in screen so you can also perform this task by adding Custom ScrollListener

MyRecyclerScroll class

public abstract class MyRecyclerScroll extends RecyclerView.OnScrollListener {
    private static final float HIDE_THRESHOLD = 100;
    private static final float SHOW_THRESHOLD = 50;

    int scrollDist = 0;
    private boolean isVisible = true;

    //    We dont use this method because its action is called per pixel value change
    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);

        //  Check scrolled distance against the minimum
        if (isVisible && scrollDist > HIDE_THRESHOLD) {
            //  Hide fab & reset scrollDist
            hide();
            scrollDist = 0;
            isVisible = false;
        }
        //  -MINIMUM because scrolling up gives - dy values
        else if (!isVisible && scrollDist < -SHOW_THRESHOLD) {
            //  Show fab & reset scrollDist
            show();

            scrollDist = 0;
            isVisible = true;
        }

        //  Whether we scroll up or down, calculate scroll distance
        if ((isVisible && dy > 0) || (!isVisible && dy < 0)) {
            scrollDist += dy;
        }

    }


    public abstract void show();

    public abstract void hide();
}

Activity/Fragment

binding.rvBeacon.addOnScrollListener(object : MyRecyclerScroll() {
            override fun show() {
                binding.btnBack.animate().translationY(0f).setInterpolator(DecelerateInterpolator(2f)).start()
            }

            override fun hide() {
                binding.btnBack.animate().translationY(binding.btnBack.getHeight() + 60f)
                    .setInterpolator(AccelerateInterpolator(2f)).start()
            }
        })

you can change animation, delay and margin according to your requirement

for more detail refer to this blog

Note: it will not work if your recyclerview inside scrollview