Android crash

[elan]

We see a fair number of these show up in our bug reporting system:

java.lang.NullPointerException
Objects.java:220java.util.Objects.requireNonNull	
BlurViewManager.java:35com.cmcewen.blurview.BlurViewManager.createViewInstance	
BlurViewManager.java:20com.cmcewen.blurview.BlurViewManager.createViewInstance	
ViewManager.java:47com.facebook.react.uimanager.ViewManager.createView	
NativeViewHierarchyManager.java:256com.facebook.react.uimanager.NativeViewHierarchyManager.createView	
UIViewOperationQueue.java:200com.facebook.react.uimanager.UIViewOperationQueue$CreateViewOperation.execute	
UIViewOperationQueue.java:911com.facebook.react.uimanager.UIViewOperationQueue$1.run	
UIViewOperationQueue.java:1025com.facebook.react.uimanager.UIViewOperationQueue.flushPendingBatches	
UIViewOperationQueue.java:46com.facebook.react.uimanager.UIViewOperationQueue.access$2600	
UIViewOperationQueue.java:983com.facebook.react.uimanager.UIViewOperationQueue$2.runGuarded	
GuardedRunnable.java:24com.facebook.react.bridge.GuardedRunnable.run

[Kureev]

Hi @elan,

Can you provide more information on the topic? For example, a repro would be quite helpful

[elan]

Unfortunately I don't have a specific one, except that I've only seen it at launch. Would seem to be a race of some kind.

[unValerio]

My app is also crashing in some parts or slowing down when using BlurView on Android when setting the position style to absolute.

I have a HOC for a loader when saving changes on my app, the blur is showed up on the entire screen, most of the times it works well but I have two specific pages in which the blur causes problems, either slowing down the app or crashing it

[mitesh-db]

Have anyone resolved it?

[mohity777]

i am facing too. It works for some seconds then crash

[mrousavy]

This is a pretty common issue. Apparently Android limits the number of BlurViews per activity to 1, this is a limitation of the eightbitlab.com.blurview.BlurView library.

So if you have multiple <BlurView /> views per screen, your app will crash on Android.

My advice, don't render BlurViews for Android, limit it to an iOS only feature. See the current list of Android issues

EDIT: Is this react-native library re-using the RenderScriptBlur object? See Dimezis/BlurView#111 (comment)

EDIT 2: Maybe the library author might be able to help if someone creates a quick (non-react-native) repro for him (see Dimezis/BlurView#110 (comment))

[hackrx]

@mrousavy you are right, I am rendering a list of images in Flatlist and using BlurView for each image, and then the app is simply crashing, I think it is only supporting a single blur/screen,

[bartzy]

@mrousavy @Kureev
Did you perhaps find a solution for this issue on Android?

[nhannah]

Look like a fix was made on the library: Dimezis/BlurView#110 (comment)

[C-odes]

@mrousavy you are right, I am rendering a list of images in Flatlist and using BlurView for each image, and then the app is simply crashing, I think it is only supporting a single blur/screen,

Images have a property called blurRadius that you can use. This library is needed to get Views to be blurred so maybe you dont need it .

[RodolfoGS]

I've the same issue @react-native-community/blur: 3.6.0
Someone could fix it? Thanks

java.lang.NullPointerException: null
    at java.util.Objects.requireNonNull(Objects.java:203)
    at com.cmcewen.blurview.BlurViewManager.createViewInstance(BlurViewManager.java:35)
    at com.cmcewen.blurview.BlurViewManager.createViewInstance(BlurViewManager.java:20)
    at com.facebook.react.uimanager.ViewManager.createViewInstance(ViewManager.java:139)
    at com.facebook.react.uimanager.ViewManager.createView(ViewManager.java:83)
    at com.facebook.react.uimanager.NativeViewHierarchyManager.createView(NativeViewHierarchyManager.java:261)
    at com.facebook.react.uimanager.UIViewOperationQueue$CreateViewOperation.execute(UIViewOperationQueue.java:186)
    at com.facebook.react.uimanager.UIViewOperationQueue$1.run(UIViewOperationQueue.java:911)
    at com.facebook.react.uimanager.UIViewOperationQueue.flushPendingBatches(UIViewOperationQueue.java:1028)
    at com.facebook.react.uimanager.UIViewOperationQueue.access$2600(UIViewOperationQueue.java:48)
    at com.facebook.react.uimanager.UIViewOperationQueue$2.runGuarded(UIViewOperationQueue.java:986)
    at com.facebook.react.bridge.GuardedRunnable.run(GuardedRunnable.java:31)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:193)
    at android.app.ActivityThread.main(ActivityThread.java:6788)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:911)

[RodolfoGS]

Fix: #411