SwipeRefreshLayout中的RecyclerView不是"wrap_content"

Question

我有一个RecyclerView作为唯一的孩子SwipeRefreshLayout,我想要RecyclerView wrap_content.当我将它们都设置为"wrap_content"时,它不起作用.该RecyclerView用的项目也较少match_parent.当我删除SwipeRefreshLayout,RecyclerView意志wrap_content.谁能帮我？我的英语很差,也许你无法理解.有人可以帮帮我吗？非常感谢你.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container_v"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v4.widget.SwipeRefreshLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#00ffff">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ff00ff">


    </android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>

Answer 1

最后,我计算出来了.从这个答案

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container_v"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v4.widget.SwipeRefreshLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#00ffff">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recycler_view"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="#ff00ff"/>

        </LinearLayout>
    </android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>