java.lang.IndexOutOfBoundsException: Index: 6, Size: 0

[AnthonyKoueik]

1.6.3

huawei p20 lite - OS Version: 9

when launching activity

<eightbitlab.com.blurview.BlurView
android:id="@+id/bottom_nav_bar_blurView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:blurOverlayColor="@color/colorTransparentWhite9">

 Process: com.dollargeneral.qa2.android, PID: 7780
    java.lang.IndexOutOfBoundsException: Index: 6, Size: 0
        at java.util.ArrayList.get(ArrayList.java:437)
        at android.view.ViewGroup.getAndVerifyPreorderedView(ViewGroup.java:3635)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4168)
        at androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw(ConstraintLayout.java:2023)
        at android.view.View.draw(View.java:20486)
        at android.view.View.draw(View.java:20353)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4394)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4170)
        at android.view.View.draw(View.java:20486)
        at eightbitlab.com.blurview.BlockingBlurController.updateBlur(BlockingBlurController.java:150)
        at eightbitlab.com.blurview.BlockingBlurController.draw(BlockingBlurController.java:230)
        at eightbitlab.com.blurview.BlurView.draw(BlurView.java:51)
        at android.view.View.draw(View.java:20353)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4394)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4170)
        at android.view.View.draw(View.java:20351)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4394)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4170)
        at androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw(ConstraintLayout.java:2023)
        at android.view.View.draw(View.java:20486)
        at android.view.View.draw(View.java:20353)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4394)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4170)
        at android.view.View.draw(View.java:20486)
        at eightbitlab.com.blurview.BlockingBlurController.updateBlur(BlockingBlurController.java:150)
        at eightbitlab.com.blurview.BlockingBlurController.draw(BlockingBlurController.java:230)
        at eightbitlab.com.blurview.BlurView.draw(BlurView.java:51)
        at android.view.View.updateDisplayListIfDirty(View.java:19294)
        at android.view.View.draw(View.java:20211)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4394)
        at android.view.ViewG

[Dimezis]

Can you post the full layout hierarchy?

[yawarkhan224]

@Dimezis I am having the same issue. For me this is the error:

java.lang.IndexOutOfBoundsException: Index: 2, Size: 0
        at java.util.ArrayList.get(ArrayList.java:437)
        at android.view.ViewGroup.getAndVerifyPreorderedView(ViewGroup.java:3809)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4323)
        at android.view.View.draw(View.java:21863)
        at eightbitlab.com.blurview.BlockingBlurController.updateBlur(BlockingBlurController.java:146)
        at eightbitlab.com.blurview.BlockingBlurController.draw(BlockingBlurController.java:226)
        at eightbitlab.com.blurview.BlurView.draw(BlurView.java:51)
        at android.view.View.updateDisplayListIfDirty(View.java:20733)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at androidx.coordinatorlayout.widget.CoordinatorLayout.drawChild(CoordinatorLayout.java:1246)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.updateDisplayListIfDirty(View.java:20719)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.updateDisplayListIfDirty(View.java:20719)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.updateDisplayListIfDirty(View.java:20719)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.updateDisplayListIfDirty(View.java:20719)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.updateDisplayListIfDirty(View.java:20719)
        at android.view.View.draw(View.java:21586)
        at android.view.ViewGroup.drawChild(ViewGroup.java:4551)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4326)
        at android.view.View.draw(View.java:21863)
        at com.android.internal.policy.DecorView.draw(DecorView.java:1083)
        at android.view.View.updateDisplayListIfDirty(View.java:20733)
        at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:725)
        at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:731)
        at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:840)
        at android.view.ViewRootImpl.draw(ViewRootImpl.java:3932)
        at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:3706)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3014)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1873)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8478)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:949)
        at android.view.Choreographer.doCallbacks(Choreographer.java:761)
        at android.view.Choreographer.doFrame(Choreographer.java:696)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:935)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:6986)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445)

Layout looks like:

<eightbitlab.com.blurview.BlurView
        android:id="@+id/orderBlurView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clickable="true"
        android:focusable="true"
        android:visibility="gone"
        tools:visibility="visible"
        app:blurOverlayColor="@color/order_state_blur"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/orderLoadingTextView"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginBottom="4dp"
                android:layout_marginEnd="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="16dp"
                android:fontFamily="sans-serif-medium"
                android:textAlignment="center"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                app:layout_constraintBottom_toTopOf="@+id/orderLoadingProgressBar"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintVertical_chainStyle="packed"
                tools:text="Starting order process&#8230;" />

            <ProgressBar
                android:id="@+id/orderLoadingProgressBar"
                style="?android:attr/progressBarStyle"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="4dp"
                android:background="@color/order_state_blur"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/orderLoadingTextView" />

            <androidx.constraintlayout.widget.Group
                android:id="@+id/orderLoadingGroup"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                app:constraint_referenced_ids="orderLoadingTextView,orderLoadingProgressBar" />

            <Button
                android:id="@+id/orderAdjustButton"
                style="@style/Widget.AppCompat.Button.Colored"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="16dp"
                android:drawablePadding="8dp"
                android:drawableStart="@drawable/ic_close_white_24dp"
                android:text="@string/adjust_order"
                android:theme="@style/AdjustButtonTheme"
                android:visibility="gone"
                app:layout_constrainedWidth="true"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/orderLoadingProgressBar"
                app:layout_constraintVertical_bias="1.0" />

            <Button
                android:id="@+id/orderPaymentSuccessfulButton"
                style="@style/Widget.AppCompat.Button.Colored"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginEnd="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="16dp"
                android:drawablePadding="8dp"
                android:drawableStart="@drawable/ic_check_white_24dp"
                android:text="@string/order_confirmed"
                android:theme="@style/PaymentSuccessfulButtonTheme"
                android:visibility="gone"
                app:layout_constrainedWidth="true"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/orderLoadingProgressBar"
                app:layout_constraintVertical_bias="1.0" />

        </androidx.constraintlayout.widget.ConstraintLayout>

    </eightbitlab.com.blurview.BlurView>

This code is working for version 1.6.1 but for 1.6.2 and 1.6.3 it is crashing.

Setup is done like this:

// setup the blur view
        orderBlurView.setupWith(coordinatorLayout)
            .setFrameClearDrawable(window.decorView.background)
            .setBlurAlgorithm(RenderScriptBlur(this))
            .setBlurRadius(10f)
            .setHasFixedTransformationMatrix(true)

and upon visibility toggle, app is crashing with IndexOutOfBoundsException.

[Dimezis]

Couldn't reproduce it with the given setup. The full layout and android version would help

[Beeen]

Hi guys,

I have the same issue, but It only appears to be occuring on a small number of my users.

One user that had the problem : Android 7 & Galaxy A5(2016)

Here is the full layout of my fragment which appears on top of an activity

` <androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent" android:layout_height="match_parent">

<eightbitlab.com.blurview.BlurView
    android:id="@+id/blurView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background_black_transparent"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/tv_explanation"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="@string/question_overlay_pending_request_explanation"
            android:textAlignment="center"
            android:textColor="@color/white"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="@id/explanationGuidelineRight"
            app:layout_constraintStart_toStartOf="@id/explanationGuidelineLeft"
            app:layout_constraintTop_toBottomOf="@+id/tv_title" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/explanationGuidelineLeft"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.1" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/explanationGuidelineRight"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.9" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/pictureGuidelineLeft"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.3" />

        <TextView
            android:id="@+id/tv_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/question_overlay_pending_request_title"
            android:textColor="@color/white"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <ImageView
            android:id="@+id/iv_profile_pic"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:background="@drawable/item_transparent_background_shape_with_white_border_rounded"
            app:layout_constraintBottom_toTopOf="@+id/tv_title"
            app:layout_constraintDimensionRatio="1"
            app:layout_constraintEnd_toEndOf="@id/pictureGuidelineRight"
            app:layout_constraintStart_toStartOf="@+id/pictureGuidelineLeft"
            app:layout_constraintTop_toTopOf="parent" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/pictureGuidelineRight"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_percent="0.7" />

        <ProgressBar
            android:id="@+id/progress_bar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.WhiteAccent"
            app:layout_constraintBottom_toBottomOf="@+id/iv_profile_pic"
            app:layout_constraintEnd_toStartOf="@+id/pictureGuidelineRight"
            app:layout_constraintRight_toRightOf="@id/iv_profile_pic"
            app:layout_constraintStart_toStartOf="@+id/pictureGuidelineLeft"
            app:layout_constraintTop_toTopOf="@+id/iv_profile_pic" />
    </androidx.constraintlayout.widget.ConstraintLayout>

</eightbitlab.com.blurview.BlurView>

</androidx.constraintlayout.widget.ConstraintLayout> `

The setup : ` public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { containerViewGroup = container; view = inflater.inflate(R.layout.question_overlay_pending_request, container, false);

    View decorView = getActivity().getWindow().getDecorView();
    //ViewGroup you want to start blur from. Choose root as close to BlurView in hierarchy as possible.
    ViewGroup rootView = (ViewGroup) decorView.findViewById(android.R.id.content);

    BlurView blurView = (BlurView) view.findViewById(R.id.blurView);
    blurView.setupWith(rootView)
            .setFrameClearDrawable(containerViewGroup.getBackground())
            .setBlurAlgorithm(new RenderScriptBlur(containerViewGroup.getContext()))
            .setOverlayColor(R.color.black)
            .setBlurRadius(1);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
    {
        blurView.setOutlineProvider(ViewOutlineProvider.BACKGROUND);
        blurView.setClipToOutline(true);
    }

    Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            animateTitle();
        }
    }, 100);

    return view;

} `

And here the backtrace of the error : ` Fatal Exception: java.lang.IndexOutOfBoundsException Index: 4, Size: 0

java.util.ArrayList.get (ArrayList.java:411) android.view.ViewGroup.getAndVerifyPreorderedView (ViewGroup.java:3291) android.view.ViewGroup.dispatchDraw (ViewGroup.java:3753) androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw (ConstraintLayout.java:2023) android.view.View.draw (View.java:18397) android.view.View.draw (View.java:18298) android.view.ViewGroup.drawChild (ViewGroup.java:3969) android.view.ViewGroup.dispatchDraw (ViewGroup.java:3755) android.view.View.draw (View.java:18397) eightbitlab.com.blurview.BlockingBlurController.updateBlur (BlockingBlurController.java:149) eightbitlab.com.blurview.BlockingBlurController$1.onPreDraw (BlockingBlurController.java:61) android.view.ViewTreeObserver.dispatchOnPreDraw (ViewTreeObserver.java:1013) android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2555) android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1550) android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:7190) android.view.Choreographer$CallbackRecord.run (Choreographer.java:959) android.view.Choreographer.doCallbacks (Choreographer.java:734) android.view.Choreographer.doFrame (Choreographer.java:670) android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:945) android.os.Handler.handleCallback (Handler.java:751) android.os.Handler.dispatchMessage (Handler.java:95) android.os.Looper.loop (Looper.java:154) android.app.ActivityThread.main (ActivityThread.java:6776) java.lang.reflect.Method.invoke (Method.java) com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1496) com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1386)`

I'd like to mention that I use Glide and Glide complier (4.10.0) and I make requests using ".disallowHardwareConfig()" which helped with this bug but there's still some happening

Thanks for your help !

[Vnicius]

I'm having the same issue with some users. And I couldn't reproduce yet. But is when I'm animating the BlurView.

[witalobenicio]

This is also happening in @react-native-community/blur if we try to render two BlurView in screen.

[Dimezis]

You can report it to the ConstraintLayout issue tracker in this case

[Thecrazyskull]

@Dimezis this is not necessarily related to ConstraintLayout. I can reproduce this without ConstraintLayout as well.

[Dimezis]

@Thecrazyskull If you can reproduce it, then please make a repo with a setup that I can run and test

[invyctus92]

Updates ?

[Dimezis]

@invyctus92 Until someone posts a reliable way of reproducing this issue, I can't help

[invyctus92]

I use @react-native-community/blur which relies on BlurView to do the blur on Android. At https://github.com/Kureev/react-native-blur/issues/396 you can find some react native examples that suffer from the problem.

[Dimezis]

@invyctus92 I appreciate that, but I have zero experience with react native and have no idea how to even approach the debugging in such case. So I definitely won't be tinkering with that react native code sample

[sapkotamadhusudan]

@Dimezis I'm having the same issue in my react native app with @react-native-community/blur. i've done some test with different implementation and able to reproduce the issue. You can find the sample here

[Dimezis]

@sapkotamadhusudan good job! Already on it

[Dimezis]

Made a fix, gonna release it today-tomorrow

[sapkotamadhusudan]

@Dimezis great :) thanks for the support

[Dimezis]

1.6.6 is out and this should be resolved

[Dimezis]

react-native-blur v3.6.1 uses 1.6.6 of blurView but the problem still exists! any thoughts 💭 ? @Dimezis

No thoughts. You can send me a repo with a setup to reproduce the problem and I will take a look. Native android project, no react.

[AmrAbdalkader]

@Dimezis Could you describe to me what was the issue and how did you solve it ?

[Dimezis]

https://github.com/Dimezis/BlurView/commit/1b371bfa4d15f88781d8be04cf4b1cc8953503ee#diff-d12d186ad42254cba0b899bb19513497132d71172c16f8c491eef7be304acc9c

The problem was that several BlurViews formed a drawing loop sometimes, each triggering a blur update of another BlurView. I added a safe check based on the Canvas type used for drawing, so the drawing can be skipped when BlurView detects it's requested to be drawn on BlurView's Canvas