Library crashes if recyclerview's item's rootview contains "layout_margin" attribute. about android-indefinite-pager-indicator HOT 10 CLOSED

@wching you're killing it! Thanks so much.

That's why I wasn't able to replicate, locally I've been experimenting with the most up to date version of the library. Will be good to know for future reference that often I'll need to drop my versioning down to ensure I'm checking older versions.

@mansigoel94 please let me know if updating to 1.0.6 works!

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Great catch, thanks. I'll check this out in depth soon and have a fix before long.

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@mansigoel94 would you mind sending me the XML layout file that is causing the error? I'm trying to recreate this on my side and I am unable to by just setting the recyclerview's root view layout_margin to an arbitrary value.

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<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        **android:layout_margin="8dp"** (here layout largin would not cause any problem)
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
      />

    <com.rbrooks.indefinitepagerindicator.IndefinitePagerIndicator
        android:id="@+id/recyclerview_pager_indicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="4dp"  (Here also margin would run just fine)
        app:dotColor="@android:color/black"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toBottomOf="@id/rv_top_search"
        app:selectedDotColor="@color/colorAccent" />

</android.support.constraint.ConstraintLayout>

But in another layout where you define recycler view items then in rootview margin would break code
example:

<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"> (this line would cause code to break.... Also margin_top, margin_bottom and margin_Right would run perfectly, only margin left doesn't)

<ImageView
    android:id="@+id/iv_preview"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:scaleType="fitXY"
    app:layout_constraintEnd_toEndOf="parent" />

</android.support.constraint.ConstraintLayout>

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Unfortunately, I still haven't been able to recreate the bug on my end. I added the layout_margin to both the RecyclerView's rootview and the view item's root view and it still is working normally for me.

Upon further inspection of the stacktrace, it seems that this line is the actual bug:

Caused by: java.lang.IllegalStateException: An instance of OnFlingListener already set.

Are you setting an OnFlingListener in your code where you setup your recyclerview? Or are you calling recyclerView.setOnScrollListener(scrollListener) rather than recyclerView.addOnScollListener(scrollListener)? If so, this could be the issue as it would likely be overriding the IndefinitePagerIndicator's internal onScrollListener that's used to update the indicator.

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@mansigoel94 any update on this? I'm going to close the issue if my comment above is the overall issue.

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No I haven't used any ScrollListener or FlingListener and this error is still reproducible on my machine. I will share sample project with you.

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https://github.com/mansigoel94/Library-Issue.git.
Check this code, I have added one todo for you where 'layout-margin' is causing library to crash

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@mansigoel94 based on the code you shared, I can see that you are using version 1.0.3 and indeed the crash happens because null is getting to the RecyclerView's
findContainingItemView(View view) method.

That was fixed by @rbro112 in this commit (line 268):
2311872
which was basically a fix released on version 1.0.4 🎉

So I think the solution to your bug will be updating to the latest version [ current is 1.0.6 ] of the library 😃

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Looks like 1.0.6+ is the fix. Closing this issue!

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