NestedScrollView could not scroll with match_parent height child

Question

I implement NonSwipeableViewPager with a fragment has NestedScrollView like this, what I expect is that the scrollview can scroll up and show 2 textviews:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true">

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

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

            <include
                android:id="@+id/header"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                layout="@layout/header" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:layout_centerHorizontal="true"
                android:layout_marginBottom="16dp"
                android:src="@drawable/ic_up" />

        </RelativeLayout>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Text 1" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Text 2" />

    </LinearLayout>

</android.support.v4.widget.NestedScrollView>

But it could not scroll, I tried many ways but still did not get any solution

@TimCastelijns so we don't have any ways to do it with match_parent height, do we? — Norutan, May 13 '16 at 09:32
that's just how a scrollview works, you can set the scrollview to match parent, but not the child of the scrollview, that needs to be wrap content — Tim, May 13 '16 at 09:34

score 116 · Accepted Answer · answered May 13 '16 at 09:36

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true">

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

This linearlayout should have android:layout_height="wrap_content".

Reason for that is that if the scrollview's child is the same size as the scrollview itself (both match_parent for height) it means that there is nothing to scroll through, since they are of same size and the scrollview will only be as high as the screen.

If the linearlayout has a height of wrap_content then the height is not related to the height of the screen and the scrollview will be able to scroll through it.

Just remember that a scrollview can only have 1 direct child, and that child needs android:layout_height="wrap_content"

For me, only `fillViewPort = true` woked. Child's height didn't matter in my case — Dhruvam Gupta, Oct 20 '17 at 13:59
Yup same here! Just using `fillViewPort = true` worked. But @Tim has a point about `android:layout_height` which is true at times, faced issues in the past. — sud007, Feb 20 '20 at 11:10
FYI `fillViewPort=true` will make it so the scrollview takes up the remaining space on the screen, if the content of the scrollview in itself does not — Tim, Oct 22 '20 at 11:58

score 12 · Answer 2 · answered Oct 23 '17 at 11:59

In my case app:layout_behavior="@string/appbar_scrolling_view_behavior" this is working only if some one face problem will be try it and may be solve your problem too. you should add also android:fillViewport="true" but without this my code working.

 <android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@drawable/subscription_background"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

I think app:layout_behavior behavior is applicable only if we are using coordinatorlayout. — Sumit Shukla, Oct 05 '18 at 12:48

score 2 · Answer 3 · answered Aug 04 '20 at 07:50

2

For me it worked when i added "android:layout_marginBottom="100dp"" for last child in androidx.core.widget.NestedScrollView

answered Aug 04 '20 at 07:50

Sandhya Krishnan

21
4

Not a solution, but I saw this same thing, I'm yet to understand why the scrollview doesn't understand the content is scrollable – Boy Sep 20 '20 at 18:17
Had the same problem added "android:layout_marginBottom="200dp" worked for me. – Toby Feb 15 '21 at 14:08

score 0 · Answer 4 · answered May 25 '21 at 05:26

if you have used netedscrollview as follow you have to use android:scrollbars="vertical"

<androidx.core.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="0dp"
    app:layout_constraintTop_toBottomOf="@id/toolbar_updateUserDetails"
    app:layout_constraintBottom_toBottomOf="parent"
    android:fillViewport="true">
<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:scrollbars="vertical"
        >
</LinearLayout>
</androidx.core.widget.NestedScrollView>

score -1 · Answer 5 · answered Oct 27 '20 at 11:21

-1

You have to calculate your other child because last child binding on nestedScrollView. You add margin like child height. It is working.

answered Oct 27 '20 at 11:21

esraSSas

9

NestedScrollView could not scroll with match_parent height child

5 Answers5