RecyclerView inside ScrollView, some items are not shown

Question

I had a RecyclerView in ScrollView like this:

<ScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <!--other stuff--> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v7.widget.RecyclerView android:layout_width="match_parent" android:layout_height="wrap_content" android:visibility="gone"/> </LinearLayout> <!--other stuff--> </ScrollView>

And the RecyclerView's item is a RelativeLayout, inside of which there is an EditText and other views. The layout_height of that RelativeLayout and EditText is both wrap_content. User can input into that EditText without any limit of length/lines so that each item's height is different.

Then I found that getItemCount() in Adapter returns true value but onBindViewHolder() is called of wrong times(less than it should be), thus not enough to show all items.

I found that this will happen only if I wrote recyclerView.setNestedScrollingEnabled(false). But I cannot remove this line. Because if I did so, the RecyclerView won't scroll smoothly and is not harmonious with other views inside ScrollView and ScrollView itself.

This occurs on 6.0 but not on 4.1.

I communicated with Google at this page: https://code.google.com/p/android/issues/detail?id=213914 and he told me this is a bug fix for RecyclerView. You can visit that page so that you can understand the question and my goal better(There is a small sample project to show the problem there). I don't agree with him even now and I want to solve the problem. Please help, thank you in advance.

with android:fillViewPort="true", change the linear layout height to match_parent — Lucas Ferraz
– Lucas Ferraz, Commented Jun 28, 2016 at 14:12

ywwynm · Accepted Answer · 2016-06-29 01:36:50Z

113

I found the solution myself: replace ScrollView with NestedScrollView and keep recyclerView.setNestedScrollingEnabled(false). I don't know if this is what NestedScrollView is made for but it works.

NOTICE:

NestedScrollView is not a child of ScrollView but of FrameLayout.
This solution will also bring some bugs with self-simulated adjustResize.

answered Jun 29, 2016 at 1:36

ywwynm

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4 Comments

Däñish Shärmà Over a year ago

thanks. worked like a charm. I replaced ScrollView with NestedScrollView and everything is fine now.

user2582318 Over a year ago

helped me too, thanks, setNestedScrollingEnabled(false); is important to keep the smooth scrolling

Ahmet K Over a year ago

Thats not a good solution actually. This has the effect that the RecyclerView doesnt recycle anymore.

Milad Faridnia Over a year ago

@AhmetK Ok So what's the solution ?

Khalil Abubaker · Accepted Answer · 2022-04-06 18:30:02Z

In my case, I replaced LineaLayout with RelativeLayout and it's solved the issue and all items have shown.

Dilpreet Singh · Accepted Answer · 2022-06-01 09:19:27Z

The answer is:

androidx.core.widget.NestedScrollView

In the first step, you need to create NestedScrollView element in XML:

<androidx.core.widget.NestedScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> // RecyclerViews should be located here </LinearLayout> </androidx.core.widget.NestedScrollView>

Next, add the below attribute to recyclerView:

android:overScrollMode="never"

Then, the recyclerView will be as following:

<androidx.recyclerview.widget.RecyclerView android:layout_width="match_parent" android:layout_height="wrap_content" android:overScrollMode="never" />

Finally, the whole the layout will be something like below, you can add other materials inside LinearLayout:

<androidx.core.widget.NestedScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <androidx.recyclerview.widget.RecyclerView android:layout_width="match_parent" android:layout_height="wrap_content" android:overScrollMode="never" /> // other materials </LinearLayout> </androidx.core.widget.NestedScrollView>

Celebrate.............;)

Harshit Jain · Accepted Answer · 2020-10-30 11:23:52Z

The best solution is to keep multiple Views in a Single View / View Group and then keep that one view in the SrcollView. ie.

Format -

<ScrollView> <Another View> <RecyclerView> <TextView> <And Other Views> </Another View> </ScrollView>

Eg.

<ScrollView android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:text="any text" android:layout_width="match_parent" android:layout_height="wrap_content"/> <TextView android:text="any text" android:layout_width="match_parent" android:layout_height="wrap_content"/> </ScrollView>

Another Eg. of ScrollView with multiple Views

<ScrollView android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1"> <LinearLayout android:layout_width="match_parent" android:layout_height="0dp" android:orientation="vertical" android:layout_weight="1"> <androidx.recyclerview.widget.RecyclerView android:id="@+id/imageView" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#FFFFFF" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingHorizontal="10dp" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/CategoryItem" android:textSize="20sp" android:textColor="#000000" /> <TextView android:textColor="#000000" android:text="₹1000" android:textSize="18sp" android:layout_width="match_parent" android:layout_height="wrap_content"/> <TextView android:textColor="#000000" android:text="so\nugh\nos\nghs\nrgh\n sghs\noug\nhro\nghreo\nhgor\ngheroh\ngr\neoh\n og\nhrf\ndhog\n so\nugh\nos\nghs\nrgh\nsghs\noug\nhro\n ghreo\nhgor\ngheroh\ngr\neoh\nog\nhrf\ndhog" android:layout_width="match_parent" android:layout_height="wrap_content"/> </LinearLayout> </LinearLayout> </ScrollView>

Meet Modi · Accepted Answer · 2024-06-24 12:26:35Z

try out this, it's work for me use fillViewPort="true" property of Scrollview and inside your recylerView put use it's property android:nestedScrollingEnabled="true".

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