Android Question strange issue with ConnectivityChanged event not triggering

[giggetto71]

Hi,
I am facing a very strange issue on some phones. apparently when I disable the wifi and phone switches from wifi -> mobile data the event fires, but when I re-enable the wifi the connectivityChanged does not fire (it's almost like the switch between mobile data->wifi, that happens "so fast" (or so smooth..) that the even does not detect a change in connectivity...again what puzzles me is that this seems to happen only on some phones (maybe android version? maybe some network settings..).
thanks for any tips.

 

[giggetto71]

Hi,
I have just noticed that I was using:

PhoneEvent1.Initialize("PhoneEvent")

and not

Public PhoneId As PhoneId
'................'
PhoneEvent1.InitializeWithPhoneState("PhoneEvent",PhoneId)

what is the difference between the two intialization methods?
thanks

 

[Erel]

You should use Initialize. InitializeWithPhoneState add the (mostly) no longer relevant PhoneStateChanged event.

 

[giggetto71]

Thanks. I am not sure i understand the meaning of "no longer relevant". Is there another way to be notified in the application about connection state change?

 

[Erel]

PhoneState has nothing to do with ConnectivityChanged. The problem is somewhere else.

You can use a timer and check ServerSocket.GetMyWifiIp: https://www.b4x.com/android/forum/threads/utility-code-getwifiname.26174/post-151601

 

[giggetto71]

I would prefer an event to a timer as the app is a foregroud service and I want to save battery as much as possible.
My only problem is that on some phones the event seems to fire only wifi ->4g while it seems to just skip in case of 4g->wifi. Unfortunately one of those phones is my company phone where most settings are administered by my company and i cannot install apps from unkown sources..only from google play..so on that phone i cannot make tests..only when the app is released...:-(..