安卓ListView中嵌套RecyclerView，触碰recy时Collapsing不滑动

Question

ListView中嵌套RecyclerView，RecyclerView放图片左右滑动，ListView放在CoordinatorLayout布局，当触碰recyclerView上下滑动时ListView会滑动，但不是CollapsingToolbarLayout先滑动折叠。
这是布局

<?xml version="1.0" encoding="utf-8"?>
android:id="@+id/homepage_head"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
>

<android.support.design.widget.AppBarLayout
    android:fitsSystemWindows="true"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.design.widget.CollapsingToolbarLayout
        android:fitsSystemWindows="true"
        app:titleEnabled="false"
        android:theme="@style/AppTheme.AppBarOverlay"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">


        <LinearLayout
            android:layout_marginTop="?attr/actionBarSize"
            android:layout_width="match_parent"
            android:orientation="vertical"
            android:layout_height="match_parent">
                        …………
        </LinearLayout>
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_collapseMode="pin"
            app:popupTheme="@style/AppTheme.PopupOverlay" >
        ………… 
        </android.support.v7.widget.Toolbar>
    </android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

<android.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">
    <cn.view.MyListView
                    <!--item包含RecyclerView -->
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        android:layout_width="match_parent"
        android:dividerHeight="8dp"
        android:layout_height="match_parent"></cn.view.MyListView>
    </android.support.v4.widget.NestedScrollView>

Answer 1

http://www.2cto.com/kf/201609/547116.html