GetNetworkType Issue

joedarock · May 22, 2011

My app queries GetNetworkType from the Phone library. However, if I switch to the 3G network from the WiFi network while the app is running, GetNetworkType still indicates "WiFi". Is this a bug, or do I have to do something else before I can read GetNetworkType?

Joe

After looking at my code again, I see that there is no "WiFi" result string; I translated the result string from "EVDO_A" to "WiFi" in code. Regardless, it doesn't seem to change when I switch networks.

Erel · May 24, 2011

GetNetworkType simply calls the native TelephonyManager and returns the value. There is nothing special that you should do when calling it, and I don't see any bugs in the code.

You should check PhoneEvents and handle the ConnectivityChanged event.

joedarock · May 24, 2011

Thanks Erel,

What I'm looking for is something that will tell me what network is in use at the time of app activation (WiFi or mobile), and also will tell me if the network in use changes while the app is running. Does any one method tell me both, or do I need to invoke a couple of methods?

Joe

Erel · May 24, 2011

You need to use PhoneEvents ConnectivityChanged. It will be raised the first time you initialize the PhoneEvents objects and then whenever their is a change.

kkolle · Jul 25, 2011

Hi Erel!

I just want to know, if this is the right behavior.
In the log you can see that I´m checking the "NetworkType" and the "DataState" every two seconds.

When I turn the WiFi on, the "ConnectivityChanged"-event informs about the new type and state.

After that there is no informaion about the WiFi, when I check the "NetworkType" and the "DataState" again.

Is that the right behavior?

Thanks for your help!

B4X:

091923 - GetNetworkType: EDGE
091923 - GetDataState: CONNECTED

091924 - ConnectivityChanged: NetworkType - WIFI, State - CONNECTED
091924 - ExtrasToString: Bundle[{networkInfo=NetworkInfo: type: WIFI[], state: CONNECTED/CONNECTED, reason: (unspecified), extra: (none), roaming: false, failover: false, isAvailable: true}]

091925 - GetNetworkType: EDGE
091925 - GetDataState: CONNECTED

091926 - ConnectivityChanged: NetworkType - mobile, State - DISCONNECTED
091926 - ExtrasToString: Bundle[{extraInfo=internet, otherNetwork=NetworkInfo: type: WIFI[], state: CONNECTED/CONNECTED, reason: (unspecified), extra: (none), roaming: false, failover: true, isAvailable: true, reason=dataDisabled, networkInfo=NetworkInfo: type: mobile[EDGE], state: DISCONNECTED/DISCONNECTED, reason: dataDisabled, extra: internet, roaming: false, failover: false, isAvailable: true}]

091926 - ConnectivityChanged: NetworkType - WIFI, State - CONNECTED
091926 - ExtrasToString: Bundle[{isFailover=true, networkInfo=NetworkInfo: type: WIFI[], state: CONNECTED/CONNECTED, reason: (unspecified), extra: (none), roaming: false, failover: false, isAvailable: true}]

091927 - GetNetworkType: EDGE
091927 - GetDataState: DISCONNECTED

Erel · Jul 25, 2011

GetNetworkType returns the type of the cellular network. So it seems to be the right behavior.

kkolle · Jul 25, 2011

OK. I understand!

Is it possible to get the state of the WiFi?
Is it possible with the ABWifi-library?

Erel · Jul 25, 2011

You can probably get more information with ABWifi library. However the ConnectivityChanged event will always be raised when you start your application. So it can also be used to monitor the WIFI state.

GetNetworkType Issue

joedarock

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