ScrollView中的Recyclerview无法平滑滚动 [英] Recyclerview inside ScrollView not scrolling smoothly

问题描述

对于我的应用程序，我在 ScrollView 内使用 RecyclerView ，其中 RecyclerView 使用此库基于其内容的高度。滚动正常，但在 RecyclerView 上滚动时，效果不佳。当我滚动查看 ScrollView 本身时，它会平滑滚动。

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<$的代码c $ c> RecyclerView ：

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

<$ c $中的 RecyclerView c> ScrollView ：

The RecyclerView in the ScrollView:

<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来修改布局。我猜您当前的布局是这样的：

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 >

但是这是一条漫长的路，如果您对自定义线性布局管理器感到满意，然后只需在回收者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.

code> v 23.2 版本的支持库现在在所有默认的 LayoutManager 中都包含了工厂包装内容功能。我没有对其进行测试，但是您可能更喜欢它而不是正在使用的库。

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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