Issue with the RecyclerView state on Android 5.0.2

[scan]

I'm using ObservableRecyclerView and it works fine on Android <5. But when I run the same code on Lollipop, I get an exception. The RecyclerView has elements, a click on them starts another activity. When I return from that one, the app crashes with the following exception:

Caused by: android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v7.widget.RecyclerView$SavedState
            at android.os.Parcel.readParcelableCreator(Parcel.java:2289)
            at android.os.Parcel.readParcelable(Parcel.java:2239)
            at android.view.AbsSavedState.<init>(AbsSavedState.java:57)
            at android.view.View$BaseSavedState.<init>(View.java:20038)
            at com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView$SavedState.<init>(ObservableRecyclerView.java:265)
            at com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView$SavedState.<init>(ObservableRecyclerView.java:252)
            at com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView$SavedState$1.createFromParcel(ObservableRecyclerView.java:304)
            at com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView$SavedState$1.createFromParcel(ObservableRecyclerView.java:301)
            at android.os.Parcel.readParcelable(Parcel.java:2246)
            at android.os.Parcel.readValue(Parcel.java:2146)
            at android.os.Parcel.readSparseArrayInternal(Parcel.java:2540)
            at android.os.Parcel.readSparseArray(Parcel.java:1868)
            at android.os.Parcel.readValue(Parcel.java:2203)
            at android.os.Parcel.readArrayMapInternal(Parcel.java:2479)
            at android.os.BaseBundle.unparcel(BaseBundle.java:221)
            at android.os.Bundle.getSparseParcelableArray(Bundle.java:871)
            at com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState(PhoneWindow.java:1979)
            at android.app.Activity.onRestoreInstanceState(Activity.java:1022)
            at android.app.Activity.performRestoreInstanceState(Activity.java:977)
            at android.app.Instrumentation.callActivityOnRestoreInstanceState(Instrumentation.java:1161)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2271)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
            at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

It looks like on Lollipop, the android.support.v7.widget.RecyclerView is not used by the app since it has the native one available. But the ObservableRecyclerView references that one, leading to the crash.

[anshul1235]

It happened for me in kitkat too!

[ksoichiro]

@scan, @anshul1235, thank you for your feedback.
How did you build the app?
Does it also happen on the one that is published on the Google Play Store?
As @scan says, ObservableRecyclerView extends android.support.v7.widget.RecyclerView and it depends on that class.
If you build the sample app with Eclipse, you need to add android-support-v7-recyclerview.jar to your build paths.
(Please see docs/eclipse.md for details.)

[scan]

I used the method described in the Readme, using Idea and Gradle. And it does not happen on the version published in the Play Store, because the bug only happens when you return to an activity, triggering onRestoreSaveState. There is no such case involving RecyclerView in the example.

[ksoichiro]

@scan Thank you. I'll check later.

[ksoichiro]

There was a problem in ObservableRecyclerView and I made a fix for this.
Could you please check the latest version?

If you use Eclipse, copy the latest ObservableRecyclerView code into your project.
If you use gradle, use 1.3.2-SNAPSHOT like this:

repositories {
    mavenCentral()
    maven {
        url uri('https://oss.sonatype.org/content/repositories/snapshots/')
    }
}

dependencies {
    compile "com.github.ksoichiro:android-observablescrollview:1.3.2-SNAPSHOT"
}

[scan]

I kind of stopped using ObservableRecyclerView after the problems, but I went back in my commit list and checked with the new version of the lib, seems to run now.

[ksoichiro]

@scan Thank you for reporting and checking this!

[ppamorim]

+1 Still happens this problem.

[oshurmamadov]

++ Still happens

[lehno]

+1 Still happens this problem.

[onexuan]

this issue is support lib bug, https://code.google.com/p/android/issues/detail?id=196430

[icodeyou]

+1