ScrollView 内的 Recyclerview 滚动不顺畅 [英] Recyclerview inside ScrollView not scrolling smoothly

问题描述

对于我的应用程序，我在 ScrollView 中使用了 RecyclerView，其中 RecyclerView 的高度基于其使用 这个库.滚动正在工作，但当我滚动 RecyclerView 时，它无法顺利工作.当我滚动 ScrollView 本身时，它正在平滑滚动.

For my app I am using a RecyclerView inside a ScrollView where the RecyclerView has a height based on its content using this library. Scrolling is working but it's not working smoothly when I scroll over the RecyclerView. When I scroll over the ScrollView itself it is scrolling smoothly.

我用来定义RecyclerView的代码:

LinearLayoutManager friendsLayoutManager = new LinearLayoutManager(getActivity().getApplicationContext(), android.support.v7.widget.LinearLayoutManager.VERTICAL, false);
mFriendsListView.setLayoutManager(friendsLayoutManager);
mFriendsListView.addItemDecoration(new DividerItemDecoration(getActivity().getApplicationContext(), null));

ScrollView中的RecyclerView:

<android.support.v7.widget.RecyclerView
    android:layout_marginTop="10dp"
    android:layout_marginBottom="10dp"
    android:id="@+id/friendsList"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

推荐答案

尝试做:

RecyclerView v = (RecyclerView) findViewById(...);
v.setNestedScrollingEnabled(false);

作为替代方案，您可以使用支持设计库修改您的布局.我猜你目前的布局是这样的:

As an alternative, you can modify your layout using the support design library. I guess your current layout is something like:

<ScrollView >
   <LinearLayout >

       <View > <!-- upper content -->
       <RecyclerView > <!-- with custom layoutmanager -->

   </LinearLayout >
</ScrollView >

您可以将其修改为:

<CoordinatorLayout >

    <AppBarLayout >
        <CollapsingToolbarLayout >
             <!-- with your content, and layout_scrollFlags="scroll" -->
        </CollapsingToolbarLayout >
    </AppBarLayout >

    <RecyclerView > <!-- with standard layoutManager -->

</CoordinatorLayout >

然而，这是一条更长的路要走，如果您对自定义线性布局管理器没问题，那么只需在回收站视图上禁用嵌套滚动即可.

However this is a longer road to take, and if you are OK with the custom linear layout manager, then just disable nested scrolling on the recycler view.

支持库的 v 23.2 版本现在在所有默认 LayoutManager 中包含工厂包装内容"功能.我没有测试它，但你可能更喜欢它而不是你正在使用的那个库.

The v 23.2 release of the support libraries now includes a factory "wrap content" feature in all default LayoutManagers. I didn’t test it, but you should probably prefer it to that library you were using.

<ScrollView >
   <LinearLayout >

       <View > <!-- upper content -->
       <RecyclerView > <!-- with wrap_content -->

   </LinearLayout >
</ScrollView >

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