如何避免隐藏浮动操作按钮

Question

I have a fab anchored to collapsing toolbar and when toolbar collapses, fab automatically hides and I want it to stop hiding

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:layout_anchor="@id/app_bar"
    app:layout_anchorGravity="bottom|start"/>

I just want fab's moving animation not hiding

Answer 1

I used floating navigation view library and it did the job

Answer 2

you can avoid floating action button from hiding by setting elevation

    app:elevation="6dp"