Snackbar not pushing FAB up

Question

User14506 posted

My RecyclerView hides my FAB on scroll with the following behavior.

    [Register("HideMyFab.ScrollAwareFABBehavior")]
    public class ScrollAwareFABBehavior : CoordinatorLayout.Behavior
    {
        public ScrollAwareFABBehavior(Context context, IAttributeSet attrs) : base(context, attrs)
        {
        }

        public override bool OnStartNestedScroll(CoordinatorLayout coordinatorLayout, Java.Lang.Object child, View directTargetChild, View target, int nestedScrollAxes)
        {
            return nestedScrollAxes == ViewCompat.ScrollAxisVertical ||
                     base.OnStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
        }

        public override void OnNestedScroll(CoordinatorLayout coordinatorLayout, Java.Lang.Object child, View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed)
        {
            base.OnNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed);

            var floatingActionButtonChild = child.JavaCast<FloatingActionButton>();

            if (dyConsumed > 0 && floatingActionButtonChild.Visibility == ViewStates.Visible)
                floatingActionButtonChild.Hide();
            else if (dyConsumed < 0 && floatingActionButtonChild.Visibility != ViewStates.Visible)
                floatingActionButtonChild.Show();

        }
    }

But this behavior prevents the FAB from being pushed up when a snackbar message is present. Any ideas on how to implement both features?

Answer 1

User14506 posted

https://github.com/akamud/FloatingActionButton-Xamarin.Android/blob/bdabb453e40eff4235c497ea36f0a693d6e2326a/FAB.Sample/FloatingActionButtonBehavior.cs

This resolved my issue.

Answer 2

User270307 posted

Alright so you dont have to do all that.. All you have to do, in you XML containing the Floating Action button change the layout type ( "FrameLayout" as such) to

<android.support.design.widget.CoordinatorLayout 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/frameLayoutMain" 
    android:layout_width="match_parent"
    android:layout_height="match_parent">

and make sure you create an object of that in your activity as

CoordinatorLayout LayoutMain;

and add it to your SnackBar

Snackbar
                            .Make(LayoutMain, "Timer Deleted", Snackbar.LengthLong)
                            .SetAction("Undo", (view) => { db.insertIntoTablePerson(person); LoadData(); })
                                 .Show();