[CLOSED] [iOS] Connection dies if no subscription value in settings about android HOT 8 CLOSED

Comment by jpmens from Monday Jan 13, 2014 at 07:23 GMT

my Android phone seems fine with an empty subscription value.

If you feel like starting your MQTT broker in debug mode, I think you'll see Android subscribes with a default of mqttitude/+/+ (the broker's debug log will show what the client is subscribing with).

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Comment by jpmens from Monday Jan 13, 2014 at 07:25 GMT

If you want to work around the issue for the moment, you could set your wife's phone to subscribe to a topic branch you won't be using (e.g. "nothing/dear"); that way the phone won't be "pestered" :-)

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Comment by sumnerboy12 from Monday Jan 13, 2014 at 07:26 GMT

Yep - noticed this just before actually - the field is empty but in light grey it shows mqttitude/+/+ - and I noticed my wife's location popping up. So yes, I can confirm the Android app still subscribes.

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Comment by sumnerboy12 from Monday Jan 13, 2014 at 07:27 GMT

Yeah it is not a big issue for me - I am happy to have a subscription in there - but it took me a good hour of debugging to figure out what was going wrong so I figured it was worth noting here so Chris can have a look. Might cause others some headaches otherwise.

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Comment by jpmens from Monday Jan 13, 2014 at 07:28 GMT

Yes, and that is good! We wanted it thusly. I think your use-case is rather special. :-)

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Comment by sumnerboy12 from Monday Jan 13, 2014 at 07:32 GMT

Yep - happy with that, since I will disable auto-publishing on both apps once the geofence stuff is finished for Android.

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Comment by ckrey from Monday Jan 13, 2014 at 08:42 GMT

Good you found that one!
I never thought of switching the subscription off...

The app tries to subscribe with a zero length Topic Filter and the server correctly reacts by closing the connection.

With 5.6, I will suppress the subscription if the the topic filter is specified as empty (zero length).

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Comment by sumnerboy12 from Monday Jan 13, 2014 at 08:55 GMT

Happy to help!

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