How do I check if WIFI connection has changed?

MIT App Inventor Help
1

Hello.

Is there a way in MIT App Inventor to check if the WIFI connection has changed (what I mean by that is if it has changed from WIFI 1 to WIFI 2 but NOT to check if the WIFI is on or off)

Thanks to anyone who would like to help me!

2

Use the extension:

https://puravidaapps.com/wifi.php

1 Like
3

Thanks for the reply but how do I use the extension?
I have it downloaded and added into my project.
Can you teach me how to use it?

4

Like for you to show me blocks that are functioning.

5

Did you read the page you were referred to ?

https://puravidaapps.com/wifi.php

All blocks are shown and described in some detail

2 Likes
6

Yes, I did. I even downloaded the aia file but I don't get how that works.

7

get the current SSID and store it in a global variable
use a clock component and check regularly if the current SSID is still the same as the stored ssid
if not, it has changed

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook http://www.appinventor.org/book2 ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.
There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles
How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling .

Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor

Taifun

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

8

I was thinking to do the same but I really didn't do it because I didn't know what the SSID is. Thanks.

9

protip: read the documentation App Inventor Extensions: WiFi | Pura Vida Apps

SSID
Get current WiFi SSID (Service Set Identifier).

and use Google: what is SSID - Google Search

SSID stands for Service Set IDentifier and is your network's name. If you open the list of Wi-Fi networks on your laptop or phone, you'll see a list of SSIDs .

Taifun

1 Like
10

And how do I get the stored SSID?
is it by using this block?component_method

Because what I want to do is if it has changed the WIFI connection, it would appendValueToList saying "reconnecting" or something, so that the connection won't be lost.

So, with that block can I store the connection it currently has and when it has changed I can compare it and appenedValueToList?

11

you stored it previously yourself in a global variable or TinyDB
Taifun

1 Like