The latest version 8.0.1 crashes the app with IllegalStateException (whereas 8.0.0 works completely fine)

[vedprakashwagh]

Environment

• Android device: Android Emulator
• Android OS version: Android 12
• Google Play Services version: -
• Firebase/Play Services SDK version: 28.4.2 (Firebase BOM)
• FirebaseUI version: 8.0.1

Problem:

Steps to reproduce:

Scrolling through FirestorePagingAdapter will crash the app after first or second fetch.

Observed Results:

App crashes with following error.

java.lang.IllegalStateException: The same value, PageKey{StartAfter=KEY_ID_HERE, EndBefore=null}, was passed as the nextKey in two
     sequential Pages loaded from a PagingSource. Re-using load keys in
     PagingSource is often an error, and must be explicitly enabled by
     overriding PagingSource.keyReuseSupported.
        at androidx.paging.PageFetcherSnapshot.doLoad(PageFetcherSnapshot.kt:419)
        at androidx.paging.PageFetcherSnapshot.access$doLoad(PageFetcherSnapshot.kt:54)
        at androidx.paging.PageFetcherSnapshot$doLoad$1.invokeSuspend(Unknown Source:15)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7839)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)

Expected Results:

Load the next set of data

Relevant Code:

It works perfectly fine with FirebaseUI version 8.0.0, but upgrading to 8.0.1 crashes the app with following error.

[maratkarelov]

the same error occured

[LastSocialDroid2]

I posted this a month ago, but no answers yet

https://stackoverflow.com/questions/71961407/firestorepagingadapter-crashes-when-scrolling-in-version-8-0-1

[shrutip90]

Internal bug filed at b/235862945

[thatfiredev]

Thanks for filing this @vedprakashwagh ! I'll have a look at it. ( looks like a duplicate of #2000 )

Edit: this is not a duplicate because it refers to Firestore, while the other issue refers to the Realtime Database.

[thatfiredev]

@vedprakashwagh Can you please also share the full Query that you passed to your FirebaseRecyclerPagingAdapter?

[LastSocialDroid2]

@thatfiredev I'm getting the same error with this Query:

Query query = notebookRef.orderBy("timestampSort", Query.Direction.ASCENDING);

[vedprakashwagh]

@thatfiredev Hey! Yes, here's the query.

query = Firebase.firestore.collection("collectionName") .orderBy("keyOfTimestamp", Query.Direction.DESCENDING)

[dhoehl]

After two days of debugging my code, I also figured that version 8.0.0 still works where 8.0.1 crashes on the first paging load (not initial). Query also is of the sort Firebase.firestore.collection("collectionName") .orderBy("keyOfTimestamp", Query.Direction.DESCENDING)

[thatfiredev]

This issue should be solved in version 8.0.2