CacheFragmentStatePagerAdapter crashes App about android-observablescrollview HOT 8 CLOSED

Have the same issue on device with 4.1.2, lollipop 5.0.2 - same , sample application - observablescrollview-samples (not from google play).
Android Studio - 1.1, build tools 21.1.2,
To reproduce issue:

1. Open sample application
2. Select ViewPagerTab2Activity
3. Scroll left to first GridViewFragment
4. Tap Multitasking button or Home button
5. Get error

01-19 18:59:04.559 26933-26933/com.github.ksoichiro.android.observablescrollview.samples.debug E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NullPointerException
at android.support.v4.app.FragmentManagerImpl.putFragment(FragmentManager.java:570)
at com.github.ksoichiro.android.observablescrollview.CacheFragmentStatePagerAdapter.saveState(CacheFragmentStatePagerAdapter.java:59)
at android.support.v4.view.ViewPager.onSaveInstanceState(ViewPager.java:1270)
at android.view.View.dispatchSaveInstanceState(View.java:12076)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2634)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2640)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2640)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2640)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2640)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2640)
at android.view.View.saveHierarchyState(View.java:12059)
at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:1607)
at android.app.Activity.onSaveInstanceState(Activity.java:1198)
at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:523)
at android.app.Activity.performSaveInstanceState(Activity.java:1147)
at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1222)
at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3291)
at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3357)
at android.app.ActivityThread.access$900(ActivityThread.java:156)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1367)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:153)
at android.app.ActivityThread.main(ActivityThread.java:5293)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)

from android-observablescrollview.

I also same issue
I think that if fragment manager is null, appeared error code.

11233-11233/com.leeleem.storeking E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.leeleem.storeking, PID: 11233
java.lang.NullPointerException
at android.support.v4.app.FragmentManagerImpl.putFragment(FragmentManager.java:570)
at com.github.ksoichiro.android.observablescrollview.CacheFragmentStatePagerAdapter.saveState(CacheFragmentStatePagerAdapter.java:59)
at android.support.v4.view.ViewPager.onSaveInstanceState(ViewPager.java:1270)
at android.view.View.dispatchSaveInstanceState(View.java:12859)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2609)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2615)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2615)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2615)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2615)
at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:2615)
at android.view.View.saveHierarchyState(View.java:12842)
at com.android.internal.policy.impl.PhoneWindow.saveHierarchyState(PhoneWindow.java:1709)
at android.app.Activity.onSaveInstanceState(Activity.java:1204)
at android.support.v4.app.FragmentActivity.onSaveInstanceState(FragmentActivity.java:523)
at android.app.Activity.performSaveInstanceState(Activity.java:1153)
at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1223)
at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:3265)
at android.app.ActivityThread.handleStopActivity(ActivityThread.java:3324)
at android.app.ActivityThread.access$1100(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1273)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:212)
at android.app.ActivityThread.main(ActivityThread.java:5137)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:718)
at dalvik.system.NativeStart.main(Native Method)

from android-observablescrollview.

Thank you for your information.
I fixed the issue.

from android-observablescrollview.

Issue was fixed, checked on devices with 4.1.2 - 5.0.
Thanks for your work, ksoichiro.
Best regards, Pankov Serge

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Hi @ksoichiro ! although this was fixed, gradle dependecy is wrong. I suppose you have to update this because we don't see CacheFragmentStatePagerAdapter in the dependencies.

Thanks!

from android-observablescrollview.

@ssppgit Sorry for dependencies problem. I released it as v1.5.0 and it's available on Maven Central.

from android-observablescrollview.

@ksoichiro Thanks guy!!! :)

from android-observablescrollview.

It seems it's solved, so I'll close this issue.
Please reopen it or open a new issue if you have any problems.

from android-observablescrollview.