FloatingActionButton hide on list scroll

Im using the FloatingActionButton from the android.support.design.widget package:

<android.support.design.widget.FloatingActionButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentEnd="true"
    android:layout_marginBottom="20dp"
    android:layout_marginEnd="16dp"
    android:clickable="true"
    android:backgroundTint="@color/primaryColor"
    android:src="@drawable/ic_search_white_24dp"
    app:borderWidth="0dp"
    app:elevation="6dp"
    app:backgroundTint="@color/primaryColorDark"
    app:rippleColor="@color/accentColor" />

Is it possible to configure that button to hide with an animation when the listview is scrolling down and to show it again when listview is scrolling up to the top?


Those who are looking to make it with recyclerview can do this:

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        if (dy > 0 || dy < 0 && fab.isShown())
            fab.hide();
    }

    @Override
    public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
        if (newState == RecyclerView.SCROLL_STATE_IDLE)
            fab.show();
        super.onScrollStateChanged(recyclerView, newState);
    }
});

Sorry! I am late by years to answer this. I hope this still helps someone. This is also my first answer.

Mates! No need to implement scroll listeners.

Add the following to the floating action button xml:

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

giving:

<com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
        android:id="@+id/fabAddOItransferIn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:text="@string/btn_text_transfer_in"
        app:icon="@android:drawable/ic_input_add"
        app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintRight_toRightOf="parent" />

In response to the following comment of mine, "Sorry! I just noticed this has a weird side effect. Any snackbars will overlap this floating action button if app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior is added. ☹️ Taking this line off will prevent the overlap and the floating action button will behave as it is intended to inside the coordinator layout. "

To counter this, do use the following:

Snackbar.make(floating_action_button, "Some snackbar text!", BaseTransientBottomBar.LENGTH_SHORT).setAnchorView(floating_action_button).show();