Nested Parcelling : RuntimeException - Unmarshalling unknown type code 3211319 at offset 440

Question

I need to send some data to an Activity, which may be running in different context. For this I created a class say A, which has an ArrayList of datatype say B as its one of instance member . I declared class B as Class A's Inner class. To send this class A's instance through Intent, I made class A and B both Parcelable.

Class structure is something like this (this does not include the complete code e.g. code written to make the classes Parcelable):

public class A implements Parcelable{

   public class B implements Parcelable{
         public ArrayList<String> value;
         ....
         .... 
          public void writeToParcel(Parcel dest, int flags) {
            dest.writeList(value);
           }
        ....
        ....
   }

   public List<B> group;
   public String name;

   ....
   .... 
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeList(group);
        dest.writeString(name);
       }
   ....
   ....
}

I used the putExtra (String name, Parcelable value) function to put data.

But on the receiving side, I got the following exception:

 Uncaught handler: thread main exiting due to uncaught exception
E/AndroidRuntime( 1087): 1289817569622 java.lang.RuntimeException: Error receiving broadcast Intent { act=android.intent.action.SET_VOIP_SUPP_SERVICE_REQUEST_LOCAL (has extras) } in com.hsc.example.android.MyApp.MyAppActuvity$1@43b409b0
E/AndroidRuntime( 1087):        at android.app.ActivityThread$PackageInfo$ReceiverDispatcher$Args.run(ActivityThread.java:765)
E/AndroidRuntime( 1087):        at android.os.Handler.handleCallback(Handler.java:587)
E/AndroidRuntime( 1087):        at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime( 1087):        at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime( 1087):        at android.app.ActivityThread.main(ActivityThread.java:4363)
E/AndroidRuntime( 1087):        at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1087):        at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime( 1087):        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime( 1087):        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
E/AndroidRuntime( 1087):        at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 1087): Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@43b51240: Unmarshalling unknown type code 3211319 at offset 440
E/AndroidRuntime( 1087):        at android.os.Parcel.readValue(Parcel.java:1777)
E/AndroidRuntime( 1087):        at android.os.Parcel.readListInternal(Parcel.java:1956)
E/AndroidRuntime( 1087):        at android.os.Parcel.readList(Parcel.java:1302)
E/AndroidRuntime( 1087):        at com.hsc.example.android.MyApp.A.<init>(A.java:61)
E/AndroidRuntime( 1087):        at com.hsc.example.android.MyApp.A.<init>(A.java:57)
E/AndroidRuntime( 1087):        at com.hsc.example.android.MyApp.A$1.createFromParcel(A.java:67)
E/AndroidRuntime( 1087):        at com.hsc.example.android.MyApp.A$1.createFromParcel(A.java:1)
E/AndroidRuntime( 1087):        at android.os.Parcel.readParcelable(Parcel.java:1845)
E/AndroidRuntime( 1087):        at android.os.Parcel.readValue(Parcel.java:1713)
E/AndroidRuntime( 1087):        at android.os.Parcel.readMapInternal(Parcel.java:1947)
E/AndroidRuntime( 1087):        at android.os.Bundle.unparcel(Bundle.java:169)
E/AndroidRuntime( 1087):        at android.os.Bundle.getParcelable(Bundle.java:1037)
E/AndroidRuntime( 1087):        at android.content.Intent.getParcelableExtra(Intent.java:3269)
E/AndroidRuntime( 1087):        at com.hsc.example.android.MyApp.MyAppActuvity$1.onReceive(MyAppActuvity.java:219)
E/AndroidRuntime( 1087):        at android.app.ActivityThread$PackageInfo$ReceiverDispatcher$Args.run(ActivityThread.java:754)
E/AndroidRuntime( 1087):        ... 9 more

Then I moved the class B, outside the class A (As I thought this may be problem of inner class, and declared the CREATOR static. This static declaration was not present when class B was an inner class of Class A). But it did not helped.

This seems that this problem is due to nested Parceling.

Any suggestion ??

NOTE: when I used android.os.Bundle.putParcelable(String key, Parcelable value) function of Bundle class, and then unmarshalled it using android.os.Bundle.getParcelable(String key) then everything is fine. So it seems that the problem is with respect to Intents only.

Answer 1

Did you include the CREATOR in for both?

public static final Parcelable.Creator<A> CREATOR = new Parcelable.Creator<A>() {
   public A createFromParcel(Parcel in) {
      return new A(in);
      }

   public A[] newArray(int size) {
      return new A[size];
      }
};

& constructors that take a Parcel:

public A(Parcel parcel) {
   name = parcel.readString();
   //etc..
}

?