RuntimeException: Could not dispatch event @ otto

Question

we have an issue in our current app-version with the EventHandler from otto. We get a RuntimeException in our crash-log, with following description:

"Reason: java.lang.RuntimeException: Could not dispatch event: classcom.nameOfBrand.ui.events.SwitchFragmentEvent to handler [EventHandler public void com.nameOfBrand.ui.activities.MainActivity.onSwitchFragmentEvent(com.nameOfBrand.ui.events.SwitchFragmentEvent)]"

We have a button and in its onClickListener we fire an self-defined SwitchFragmentEvent. In some weird situations, the framework can't dispatch the Event and throws an RuntimeException.

The fragment with the button extends AbstractResultListFragment and this one extends AbstractFragment. We register the EventBus in the onResume of AbstractFragement and unregister it at onPause. Everything works fine, except at this one button :/

Does anyone have an idea or had ever to do with something like this?

UPDATE: Scompt was right. The RuntimeException was thrown from otto cause of a NullPointerException in our code. Thx

Tipp: Read your crash-logs until the end ;)

Collen

Do you have any additional information from the exception? There should be a wrapped exception at that point. – Anode

Oh, i see! Have not scrolled so far in the crashlog. In my case it's an NullPointer and as you said, wrapped inside this RuntimeException from the framework. Thanks – Collen

@scompt.com i don't have a wrapped exception. i have a @Produce method in my activity where a fragment in my activitie's viewpager is supposed to receive the event. but app clashes with the exception – Thorner

Answer 1

There should be a wrapped exception at that point that will provide more information about the crash.

Anode

How are you supposed to use this protected method "void dispatch(Object event, EventHandler wrapper)" ? – Axletree

How could this be a solution? it links me to a third party method which does not solve anything? I need to solve this problem with more advanced and clear explanation ! – Laudable

Answer 2

If you use with AndroidAnnotation, add @UiThread to view treatment method. Note that the method should not be private.

Sile

What do you mean view treatment method? – Thermoelectric