如何在 ViewPager + RecyclerView 中使用 AppBarLayout 的提升滚动？

Question

I have an activity layout that's like this:

<CoordinatorLayout>
    <AppBarLayout>
        <Toolbar />
        <TabLayout />
    </AppBarLayout>
    <ViewPager />
</CoordinatorLayout>

Then, in the activity, the viewpager is populated with three fragments. Each of these fragments has a layout like this:

<FrameLayout>
    <FrameLayout>
        <RecyclerView />
        <Other views />
    </FrameLayout>
    <Other views />
</FrameLayout>

Now, in other views where RecyclerView is not used for the content, the lift-on-scroll works just fine (for instance, when using NestedScrollView instead of RecyclerView ). However, with RecyclerView it doesn't work. How should it be configured to make it work?

Answer 1

在应用栏上添加这个：

app:liftOnScroll="true"