android -------- solve RecyclerView incomplete display to show only a question of item

1 layout file

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/sv_home_hm"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:scrollbars="none">

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

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/recycler_home_model_type"
            android:layout_width="match_parent"
            android:layout_height="65dp"
            android:layout_marginTop="16dp"></androidx.recyclerview.widget.RecyclerView>

        <androidx.recyclerview.widget.RecyclerView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"></androidx.recyclerview.widget.RecyclerView>

    </LinearLayout>

</ScrollView>

 

As shown, there is a project company to use two RecyclerView interface implemented vertically arranged from top to bottom;

My layout is custom ScrollerView sets LinearLayout sets RecyclerView;

Debug interface, we found the third RecyclerView show there is a problem, what we call display incomplete;

Interface obviously a lot of data returned, I tried many methods will not work, did not achieve the desired results;

Later, my solution is to RecyclerView outer nested linear layouts (LinearLayout) into the relative layout (RelativeLayout), just fine, as follows:

This is the reason vertical conflict

 

 

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/sv_home_hm"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:scrollbars="none">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

           　<androidx.recyclerview.widget.RecyclerView
                android:id="@+id/recycler_home_model_type"
                android:layout_width="match_parent"
                android:layout_height="65dp"
                android:layout_marginTop="16dp"></androidx.recyclerview.widget.RecyclerView>

            <androidx.recyclerview.widget.RecyclerView
                android:id="@+id/recycler_home_model_recommend"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:layout_marginRight="5dp"></androidx.recyclerview.widget.RecyclerView>
    </RelativeLayout>
</ScrollView>