How to use motion layout with recyclerview

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trying to use MotionLayout with RecyclerView,

when scrolling up, app is crashing with error:

android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff

fragment layout code is 

<android.support.constraint.motion.MotionLayout
    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"
    app:layoutDescription="@xml/collapsing_config_order_details"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    ...

<android.support.v7.widget.CardView
        android:id="@+id/cardView"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        app:layout_constraintEnd_toEndOf="@+id/tv_delivery_type"
        app:layout_constraintStart_toStartOf="@+id/imageView15"
        app:layout_constraintTop_toBottomOf="@+id/view4">

     ...

</android.support.v7.widget.CardView>

<android.support.v7.widget.RecyclerView
        android:id="@+id/rv_list"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="@+id/cardView"
        app:layout_constraintStart_toStartOf="@+id/cardView"
        app:layout_constraintTop_toBottomOf="@+id/cardView" />

</android.support.constraint.motion.MotionLayout>

and layoutDescription code is:

<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <Transition
        app:constraintSetEnd="@id/collapsed"
        app:constraintSetStart="@id/expanded">

        <OnSwipe
            app:dragDirection="dragUp"
            app:touchAnchorSide="top"
            app:moveWhenScrollAtTop="@+id/rv_list" />

    </Transition>

    <ConstraintSet android:id="@+id/expanded"
            android:id="@+id/cardView"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            app:layout_constraintEnd_toEndOf="@+id/tv_delivery_type"
            app:layout_constraintStart_toStartOf="@+id/imageView15"
            app:layout_constraintTop_toBottomOf="@+id/view4" />
    </ConstraintSet>

    <ConstraintSet android:id="@+id/collapsed">
    <Constraint
            android:id="@+id/cardView"
            android:layout_width="0dp"
            android:layout_height="1dp"
            android:layout_marginTop="8dp"
            app:layout_constraintEnd_toEndOf="@+id/tv_delivery_type"
            app:layout_constraintStart_toStartOf="@+id/imageView15"
            app:layout_constraintTop_toBottomOf="@+id/view4" />
    </ConstraintSet>

</MotionScene>
android
android-recyclerview
scroll
swipe
android-motionlayout
asked on Stack Overflow Mar 11, 2019 by Asad • edited Mar 11, 2019 by Fox

4 Answers

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app:moveWhenScrollAtTop="@+id/rv_list"

Vale of app:moveWhenScrollAtTop should be boolean.

answered on Stack Overflow May 30, 2019 by Yogesh Paliyal
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Add android:nestedScrollingEnabled="false" to your recyclerView

works for me.

answered on Stack Overflow Aug 24, 2020 by zinonX
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Change

<ConstraintSet android:id="@+id/expanded"
            android:id="@+id/cardView"

to 

<ConstraintSet android:id="@+id/expanded" >
<Constraint android:id="@+id/cardView"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        app:layout_constraintEnd_toEndOf="@+id/tv_delivery_type"
        app:layout_constraintStart_toStartOf="@+id/imageView15"
        app:layout_constraintTop_toBottomOf="@+id/view4" />
</ConstraintSet>
answered on Stack Overflow Mar 11, 2019 by Sirelon
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Each ConstraintSet should have Constraint by themselves and you need to specify as many Constraint as you want to change the scene, like if you want to move A and B together with one interaction, you need to specify both of them in one ConstraintSet

Also, I'm not sure what you're trying to achieve, but I think you need to write code like below 

<OnSwipe
        app:dragDirection="dragUp"
        app:touchAnchorId="@id/rv_list"
        app:touchAnchorSide="top" />

That means you're targeting rv_list to trigger the action.

answered on Stack Overflow Apr 6, 2019 by John Lee

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