iOS Question check wifi or 3g

[ivanomonti]

hi Erel

how can I check if there is line wifi or 3g in b4i!

 

[Erel]

What exactly are you trying to find? Whether there is an internet connection?

 

[ivanomonti]

Yes

 

[Erel]

The best way is to send a HttpJob to a known site such as google.com and see whether it succeeds or not.

 

[aaronk]

I like to know if the user is connecting either by WiFi or 3G.

Lets say you are using the chat example and it opens a socket connection, but then the user turns off WiFi or the WiFi drops connection. Is there a way to detect if the WiFi has dropped and they are now using 3G/4G.

And if they are connected using 3G/4G to a socket and then they connect to a WiFi network. Is there a way to then detect if they are now connecting by WiFi.

Or is B4i (or iOS) smart enough to know the connection is now connecting by another method and keep the connection alive ?

 

[Erel]

Your example is not really related to wifi or 3g. The socket will break if the underlying connection is broken. Assuming that you use AsyncStreams them the Terminated or Error events will be raised.

 

[ivanomonti]

Hi Erel
I used this code

Sub Wifi3gOnOff As Boolean
    Dim v As Application
    Dim b As Boolean = v.CanOpenURL("https://www.google.it")
    wifi3gOn = b
    Return b
End Sub

 

[Erel]

It will always return true.

 

[mrossen]

I would like to know if the app is connected wifi or 3G/4G.

If connected to wifi I will always download some image files, connected to 3G/4G I will ask user to download.

Is it possible to se what kind of connection I use?

Mogens

 

[Erel]

You can check ServerSocket.GetMyWifiIp. It will be 127.0.0.1 if there is no wifi connection.