浮动动作按钮在第二个Snackbar下消失

Question

I'm using a CoordinatorLayout to keep my Floating Action Button above the Snackbar, which works great. ...But only for the first Snackbar. When a second one is created, while the first one is still there, the FAB slides under it.

I'm using this in a RecyclerView in which I can remove items. When an item is removed, a "Undo" Snackbar appears. So when you delete some items one after another, the visible Snackbar is replaced by a new one (which causes the FAB behaviour)

Do you know a solution to keep the FAB above new Snackbars?

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:fab="http://schemas.android.com/tools"
    android:id="@+id/coordinator_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:backgroundTint="@color/background_grey"
    android:orientation="vertical">

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

        <include
            android:id="@+id/toolbar"
            layout="@layout/toolbar" />

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical" />

    </LinearLayout>

        <android.support.design.widget.FloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_marginBottom="16dp"
            android:layout_marginEnd="16dp"
            android:layout_marginRight="16dp"
            android:elevation="6dp"
            android:src="@drawable/ic_add_white_36dp"
            app:borderWidth="0dp"
            app:fabSize="normal"
            app:pressedTranslationZ="10dp"
            app:rippleColor="@color/abc_primary_text_material_dark" />

</android.support.design.widget.CoordinatorLayout>

This is how it looks after I delete on item

...and then after I delete another item

Answer 1

This will always happen, as snackbar is a layer above the view ..Stacked snackbar shouldn't be used in this scenario See google gidelines.. https://www.google.co.in/design/spec/components/snackbars-toasts.html#snackbars-toasts-usage

On the contrary, you implementation should be something like https://github.com/jenzz/Android-UndoBar

Apologies for changing ur design