Exception in Recyclerview

[karandeep26]

This library is not supported for ViewPager inside the recyclerview?

[shuhart]

Could you provide a stacktrace and a layout example?

[shuhart]

In my project it works perfectly.

[karandeep26]

multiple viewpager indicators in recyclerView?

[karandeep26]

I am facing problem with multiple viewpagers in a recyclerView.

[shuhart]

Show your xml structure.

[karandeep26]

`

<data>
    <import type="java.util.List"/>
    <import type="android.view.View"/>

    <variable
        name="vm"
        type="com.knudge.me.viewmodel.newsfeed.MultiplePictureViewModel" />
</data>

<include
    android:id="@+id/header"

    layout="@layout/item_news_feed_header"/>


<android.support.v4.view.ViewPager
    android:id="@+id/view_pager"
    android:clipToPadding="false"
    app:layout_constraintTop_toBottomOf="@id/header"
    android:layout_width="match_parent"
    android:layout_marginBottom="@dimen/app_spacing_4"
    android:layout_height="300dp"/>


<RelativeLayout
    android:id="@+id/indicator_container"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
<include
    android:visibility="visible"
    android:id="@+id/footer"
    layout="@layout/item_news_feed_bottom"
   />
    <com.shuhart.bubblepagerindicator.BubblePageIndicator
        android:id="@+id/indicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        app:bpi_radius="6dp"
        app:bpi_fillColor="@color/black"
        app:bpi_pageColor="@color/card_progress_yellow"
        app:bpi_marginBetweenCircles="6dp"
        app:bpi_risingCount="@integer/default_bubble_indicator_rising_count"/>
</RelativeLayout>

`

Earlier I was getting exception while scrolling the recyclerView regarding the no observer exception. I resolved that by setting the viewPager of your library to null initially. Now I am facing problem with indicator not changing in some cases after scrolling probably because currentPage is setting to 0 at some point.

[shuhart]

But where is RecyclerView in the layout?

[shuhart]

And you mentioned multiple BubblePagerIndicator widgets in the layout. So far, I don't understand how it's done.

[karandeep26]

I am using recyclerView which has viewPager as an item.

[shuhart]

I don't see any problem with that. I use this library in production in exact same way as you are. RecyclerView and ViewPager as an item. Could you reproduce and describe those cases when something goes wrong?

[JolandaVerhoef]

To reproduce:

• Create a RecyclerView that contains one row with a ViewPager + Indicator and 100 rows with something else
• Scroll down and up
• Crash

Why is this crashing?
The RecyclerView tries to recycle the row that contains the ViewPager & Indicator. It first sets a new adapter to the ViewPager. Then it calls setViewPager, which tries to unregister the new adapter instead of the old one from callbacks. That leads to a crash.

How can we solve this?
Add a clearViewPager method to the BubblePageIndicator and call this from the unbind method.

[shuhart]

Fixed in 1.1.0