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Asked: 2026-05-26T15:05:49+00:00

I have A TabActivity that hosts other activities, on the tabactivity I have a

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I have A TabActivity that hosts other activities, on the tabactivity I have a broadcast receiver that gets data from a webservice(not an android Service) class. The webservice class makes a http request in an asynctask and returns the data by sending broadcast message to the tabhost.

If I block the screen on portrait, the data is retrieved with no problems, if I let the screen in default mode (portrait and landscape), at first run the application is getting the data but after several orientation screen changes, the app is crashing and I receive the following error:

11-03 17:25:48.542: ERROR/AndroidRuntime(16486): FATAL EXCEPTION: main
    java.lang.RuntimeException: Error receiving broadcast Intent { act=x.tableManager.tableData.success } in x.SolarObjTableMain$TableViewDataReceiver@405c5d88
    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:756)
    at android.os.Handler.handleCallback(Handler.java:587)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:143)
    at android.app.ActivityThread.main(ActivityThread.java:4196)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: java.lang.NullPointerException
    at x.SolarObjTableMain.getPaddedData(SolarObjTableMain.java:530)
    at x.SolarObjTableMain.addTableToList(SolarObjTableMain.java:983)
    at x.SolarObjTableMain.access$900(SolarObjTableMain.java:35)
    at x.SolarObjTableMain$TableViewDataReceiver.onReceive(SolarObjTableMain.java:1051)
    at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:739)
    ... 9 more

After the first crash, the app is keep crashing at the first run, I don’t have to shake the phone or rotate it to reproduce the error…

After some break points, it seems that the receiver gets some data but after a random amount of data received, all objects in the activity gets to null.

Note that I am registering the receiver in onCreate() and onResume() and unregister it in onPause().

What I am doing wrong? Thank you!

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1 Answer

  1. Editorial Team

    You’re registering in onCreate AND onResume? Just do onResume.

    Also, your life would be easier if you add this to the activity declaration in AndroidManifest.xml

    android:configChanges=”orientation|keyboard|keyboardHidden”

    It will prevent a complete restart of your activity on orientation changes (as well as keyboard events).

    I’m not sure why you’re getting nulls, but I think if you change those two things, you should be good. If not, we’d need some code to look at.

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