Horizontal RecyclerView inside ScrollView not inflating - Android

Question

I have a horizontal RecyclerView inside a ScrollView but none of the adapter methods are being triggered.

This is my fragment with the ScrollView:

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical" android:layout_width="match_parent"
   android:background="@color/white"
   android:layout_height="match_parent">

    <RelativeLayout
       android:layout_width="match_parent"
       android:layout_height="match_parent">

    <include layout="@layout/selector"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:id="@+id/selector"/>

  .....
  .....

   </RelativeLayout>
</ScrollView>

This is my selector.xml layout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical" android:layout_width="match_parent"
   android:layout_height="100dp"
   android:background="@color/green">

    <android.support.v7.widget.RecyclerView
       android:id="@+id/rv_kids"
       android:layout_width="match_parent"
       android:layout_height="100dp" />

</LinearLayout>

And here I'm setting the adapter to the RecyclerView:

selectorAdapter = new selectorAdapter(activity, kids);
rv_items.setLayoutManager(new LinearLayoutManager(activity, LinearLayoutManager.HORIZONTAL, false));
rv_items.setAdapter(selectorAdapter);
selectorAdapter.notifyDataSetChanged();

The thing is, the green background I've set to the selector shows up but none of the adapter methods are triggered and the RecyclerView doesn't inflate. What can I do differently?

@Nithinlal hey that's where it was before and it didn't work even then, so I had tried moving it below just to try. — Mallika Khullar, Nov 30 '16 at 06:53
First remove the RelativeLayout from scroll view and check its is showing now — Nithinlal, Nov 30 '16 at 06:56
@Nithinlal ScrollView can only host one direct child and I have other elements apart from the RecyclerView which is why the enclosing RelativeLayout — Mallika Khullar, Nov 30 '16 at 06:57
@Mallika you have to position the recyclerview in your RelativeLayout or try using LinearLayout instead of RelativeLayout and see if it works — Ravi Theja, Nov 30 '16 at 06:58

score 0 · Answer 1 · edited May 23 '17 at 12:13

0

You should use Nested Scrollview https://developer.android.com/reference/android/support/v4/widget/NestedScrollView.html instead. However you may need to write your own LayoutManager. Check out this SO Answer for more details

How to use RecyclerView inside NestedScrollView?

edited May 23 '17 at 12:13

Community

1
1

answered Nov 30 '16 at 06:54

Quick learner

10,632
4
45
55

Hey the custom LayoutManager was crashing at `View view = recycler.getViewForPosition(position)` even though I was binding the data with the list correctly and the adapter count was correct. But instead of debugging further, I think I'm gonna switch to using a LinearLayout and add views to it instead and make it behave like a RecylerView. – Mallika Khullar Nov 30 '16 at 08:50

Horizontal RecyclerView inside ScrollView not inflating - Android

1 Answers1