我在片段中有2个RecyclerViews。 但只显示了第一个

Question

I'm trying to have two RecyclerViews in a Fragment. One of them being a horizontally aligned RecyclerView, and the other a vertically aligned one. But only the horizontal RecyclerView is visible. (The vertical RecyclerView is visible if I change the order of the RecyclerViews in the layout file, so I'm pretty sure there's nothing wrong with the RecyclerViews.)

As per other answers to similar questions, I've added the layout_weight=1 in both the RecyclerViews. But the 2nd RecyclerView still doesn't show.

Here's my layout file:

<?xml version="1.0" encoding="utf-8"?>

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

        <android.support.v4.widget.SwipeRefreshLayout
            android:id="@+id/swipeRefreshLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/CategoryPageRecyclerView"
                android:layout_width="fill_parent"
                android:layout_weight="1"
                android:layout_height="0dp"
                android:scrollbars="none" />

            <android.support.v7.widget.RecyclerView
                android:id="@+id/ItemsRecyclerView"
                android:layout_width="fill_parent"
                android:layout_weight="1"
                android:layout_height="0dp"
                android:scrollbars="vertical" />

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

I have a feeling the SwipeRefreshLayout is causing an issue. Any ideas on how to fix this?

Answer 1

SwipeRefreshView supports only one direct child - wrap RecyclerView s in LinearLayout and it will work.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipeRefreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" />

            <android.support.v7.widget.RecyclerView
                android:id="@+id/CategoryPageRecyclerView"
                android:layout_width="fill_parent"
                android:layout_weight="1"
                android:layout_height="0dp"
                android:scrollbars="none" />

            <android.support.v7.widget.RecyclerView
                android:id="@+id/ItemsRecyclerView"
                android:layout_width="fill_parent"
                android:layout_weight="1"
                android:layout_height="0dp"
                android:scrollbars="vertical" />

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

Hope this helps you, comment if you have any questions