Connection over WiFi not Cellular

MIT App Inventor Help
1

As I am new in programming apps, you maybe laugh about my problem ...

I have build something like a Photobooth Software wich uploads Pictures to a NAS using Taifun's FTP Extension. If my Phone is only connected to my WiFi, it works fine, but if I have a connection to the Internet via Cellular Mobile Network, the FTP wents the wrong way.

How can I solve this routing problem. Is there a way, to tell my App, that it has to use the WiFi Connection only?

Thanks for your help.

2

you might want to use the wifi extension and its SSID method to find out, if you are connected to your WiFi
https://puravidaapps.com/wifi.php

Taifun

Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by icon24 Taifun.

3

My device is connected to a local WiFi (without Internet Connection). If I switch off Cellular Data Network, it works fine, but if it is switched on, the FTP Extension seems to use the Celluar Connection instead of WiFi. I tried to switch off Cellular Network in the rules of the App, but without effect. If my WiFi-Router is connected to the Internet, it also works.

So I think, I have to tell my app internal, that it should only use WiFi for the FTP Upload, no matter if there is a Internet-Connection or not.

4

As I can't solve my problem, I maybe have another idea: Is it possible to switch off the Cellular Data Connection while using my app?

5

you might want to use the activity starter, see this stackoverflow answer

Taifun