CollapsingToolbarLayout中的选项卡重叠RecyclerView [英] Tabs in CollapsingToolbarLayout overlapping RecyclerView

问题描述

我有一个TabLayout，其中有一个ViewPager，可以在两个片段之间进行选择，而这两个片段都具有垂直滚动的RecyclerViews.我有一个滚动的TabLayout，以便在滚动RecyclerView时，这些选项卡消失.但是，它的开始是TabLayout与RecyclerView的第一项重叠，从而将其删除.我曾尝试向ViewPager添加页边距，但是即使在选项卡已滚动出屏幕后，此页边距仍然存在.如何更改它，以使选项卡不与RecyclerView的第一项重叠?

I have a TabLayout which has a ViewPager that selects between two fragments which both have vertical scrolling RecyclerViews. I have a scrolling TabLayout so that when I scroll the RecyclerView, the tabs disappear. However, it starts off with the TabLayout overlapping the RecyclerView's first item, cutting it off. I have tried adding margin to the ViewPager but this margin exists even after the tabs have been scrolled off of the screen. How could I change it so the tabs do not overlap the first item of the RecyclerView?

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|enterAlways">

            <android.support.design.widget.TabLayout
                android:id="@+id/sliding_tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:tabGravity="fill"
                app:tabMaxWidth="0dp"
                app:tabMode="fixed"
                app:tabPadding="5dp"/>

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

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

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

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

推荐答案

将layout_behavior添加到视图分页器

<android.support.v4.view.ViewPager
     android:id="@+id/id_viewpager"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     app:layout_behavior="@string/appbar_scrolling_view_behavior" />

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