In a view pager I have several fragments, one of them uses a nested scrollview with a header and a recyclerview :
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/scrollview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.m360.android.fragment.Members.MemberDetailsFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp">
<header/>
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipToPadding="false"
android:paddingTop="0dp" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
The tag "header" represents a complex layout that I didn't want to post here as it stretches out the code a lot.
when I switch between the tabs, it scrolls strait to the recycler view. The header is hidden, I have to scroll up to see it.
Any ideas on what causes that ? I don't wanna use a type in my adapter if I can avoid it.
We have a similar problem. We have a vertical RecyclerView
. Each item of this vertical RecyclerView
contains an horizontal RecyclerView
, like in the Android TV app.
When we upgraded the support libs from 23.4.0 to 24.0.0 the automatic scroll suddenly appeared. In particular, when we open an Activity
and we then go back, the vertical RecyclerView
scrolls up so that the current horizontal RecyclerView
row does not get cut and the row is displayed completely.
Adding android:descendantFocusability="blocksDescendants"
fixes the issue.
However, I've found another solution, which also works. In our case the vertical RecyclerView
is contained inside a FrameLayout
. If I add android:focusableInTouchMode="true"
to this FrameLayout
, the problem goes away.
There's even a third solution mentioned here, which basically consists on calling setFocusable(false)
on the child/inner RecyclerView
s. I haven't tryied this.
By the way, there is an open issue on the AOSP.
setandroid:focusableInTouchMode="true"
for child Layout( may be LinearLayout
) of NestedScrollView
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