Hi guys,
I'm not explicitly setting IDs on any of my views. I'm not doing
anything related to views in my instance save handler either, just
saving a string. Is there something else I may be using incorrectly to
cause that?
Thanks
On Nov 24, 11:27 am, Romain Guy <romain...@google.com> wrote:
> This would happen if you have several views of different type with the
> same id inside a single view hierarchy. This could cause other
> problems so I really advise you to not hack around the default
> implementation of onRestoreInstanceState() but make sure that your UI
> is setup correctly.
>
> On Tue, Nov 24, 2009 at 7:28 AM, Streets Of Boston
>
>
>
> <flyingdutc...@gmail.com> wrote:
> > i've seen this too.
> > I got around it by overriding the problematic View's
> > onRestoreInstanceState method:
>
> > public void onRestoreInstanceState(Bundle savedState) {
> > ...
> > ...
> > super.onRestoreInstanceState(BaseSavedState.EMPTY_STATE);
> > }
>
> > I took a look at the android.view.View's implementation of this
> > onRestoreInstanceState method and it only expects the
> > BaseSavedState.EMPTY_STATE as valid input. It checks for if
> > (savedState != BaseSavedState.EMPTY_STATE) then throw exception ...
>
> > For me it went wrong because 'savedState' is no longer the actual
> > BaseSavedState.EMPTY_STATE instance but a de-serialized copy of it
> > (after the killed process has been restored/restarted) and this means
> > that the '!=' operator returns true and an exception is thrown.
>
> > On Nov 24, 10:08 am, Mark Wyszomierski <mar...@gmail.com> wrote:
> >> Hi,
>
> >> I'm testing how my app behaves when killed by the OS due to low memory
> >> conditions. I always have three activities on the stack, like:
>
> >> A B C (then C launches maps or some other heavy process)
>
> >> when my app is killed, and I return to it, C starts itself up again
> >> ok. When I hit the back button to go to B, I [sometimes] get an
> >> exception thrown which I can't trace. Output is below. I don't know
> >> where to go from here. I've only seen one other post mentioning this
> >> exception, but it was related to a reproducable error when rotating
> >> the device. This only happens sometimes. Thanks for any help:
>
> >> 11-24 07:52:12.469: ERROR/AndroidRuntime(5877): Uncaught handler:
> >> thread main exiting due to uncaught exception
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877):
> >> java.lang.RuntimeException: Unable to start activity ComponentInfo
> >> {com.test.android/com.test.android.ui.ActivityHello}:
> >> java.lang.IllegalArgumentException: Wrong state class -- expecting
> >> View State
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> >> 2268)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
> >> 2284)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread.access$1800(ActivityThread.java:112)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.os.Handler.dispatchMessage(Handler.java:99)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.os.Looper.loop(Looper.java:123)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread.main(ActivityThread.java:3948)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> java.lang.reflect.Method.invokeNative(Native Method)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> java.lang.reflect.Method.invoke(Method.java:521)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> >> (ZygoteInit.java:782)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> dalvik.system.NativeStart.main(Native Method)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): Caused by:
> >> java.lang.IllegalArgumentException: Wrong state class -- expecting
> >> View State
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.View.onRestoreInstanceState(View.java:5359)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.View.dispatchRestoreInstanceState(View.java:5335)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:
> >> 1093)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:
> >> 1097)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:
> >> 1097)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:
> >> 1097)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:
> >> 1097)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.view.View.restoreHierarchyState(View.java:5314)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> com.android.internal.policy.impl.PhoneWindow.restoreHierarchyState
> >> (PhoneWindow.java:1501)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.Activity.onRestoreInstanceState(Activity.java:834)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.Activity.performRestoreInstanceState(Activity.java:800)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.Instrumentation.callActivityOnRestoreInstanceState
> >> (Instrumentation.java:1172)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): at
> >> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> >> 2245)
> >> 11-24 07:52:12.539: ERROR/AndroidRuntime(5877): ... 11 more
>
> > --
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>
> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support. All such questions should be posted on
> public forums, where I and others can see and answer them
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