LiveCode Forums

Hi,

Firstly, let me declare I have zero idea about any other programming language other than LC!!

That being said I am needing to build an IOS External to retrieve the SSID of the currently connected WiFi network (will use mergNic to confirm the device is actually connected to a WiFi Network )

Monte has been a great help and pointed me to a stack overflow question which has given me what I believe I need to achieve this and after following the Externals Guide from RunRev I have managed to make a start.

I am now at the point of adding the required detail to mm file about the "Method" ??? I need to use to do this (Hopefully)

This is the code I have in the mm file from the stack overflow question but I keep getting the following errors in XCode
: Expected a type and : Missing context for method declaration




#import <SystemConfiguration/CaptiveNetwork.h>

+ (NSString *)currentWifiSSID {
// Does not work on the simulator.
NSString *ssid = nil;
NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
for (NSString *ifnam in ifs) {
NSDictionary *info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
if (info[@"SSID"]) {
ssid = info[@"SSID"];
}
}
return ssid;
}

this is my .idl file
//
// ioswifissid.lcidlc
// ioswifissid
//
// Created by Nakia Brewer on 15/07/13.
// Copyright 2013 Nakia Brewer. All rights reserved.
//

// The name of the external (note external name must be all lowercase!)
external ioswifissid

use c++-naming
use objc-objects

command currentWifiSSID
out ssid as objc-string



Any pointers would be greatly appreciated...

lastly, if anyone has some suggestions on good books/online courses to learn objective c that would be also greatly appreciated..

Nakia wrote:lastly, if anyone has some suggestions on good books/online courses to learn objective c that would be also greatly appreciated..

This is a good book that I can suggest ... iPhone Programming: The Big Nerd Ranch Guide http://www.amazon.com/iOS-Programming-R ... anch+Guide

Guglielmo

Thanks for the reply..

I think I will need to cancel this project, obj-c is just beyond my skill set for now until I do a LOT of heavy reading.

Cheers

Hi Nakia,
There is this:
http://www.runrevplanet.com/index.php?o ... &Itemid=65
But I don't know if Pascal is easier or more difficult.

Simon

Hey Kia... sorry I didn't see this post. You're nearly there mate:

ioswifissid.mm
ioswifissid.lcidl

Sorry about my huge delay in response, been moving house.

Thanks for everyone's replies, I will give this a spin tomorrow and report back on my result.
If I manage to get it to work I'll happily upload the compiled external here just in case someone else has a use for it.

Cheers

Finally got back to this today,

my XCode still spewing out errors like crazy with just you code Monte.
Maybe there is a setting wrong in my project?

Hmmm, importing Foundation.h seemed to help....
# import <Foundation/Foundation.h>

Only getting "yellow" errors now but the build succeeds..

so, I thought I might try it on a device..
I have used the copy files pane to add the ioswifissid.lcext

and I have a button with
on mouseUp
put currentWifiSSID into tSSID
answer tSSID
end mouseUp

unfortunately all I get answered is "currentWifiSSID"

Hi Nakia,

does it work when you use it like a function, which it obviously is:
...
put currentWifiSSID() into tSSID
answer tSSID
...
Just guessing, no idea about C etc...


Best

Klaus

It's a command: Might want to change it to a function I think...

Thanks for the replies and sorry to ask what may appear as dumb questions,
this is just very new for me and I have ZERO knowledge on C (although I plan to learn)

Good news is it actually works and as promised I have uploaded it.

As Monte pointed out you need to use

currentWifiSSID
answer the result

The result will be empty if no wireless network is connected.

Hi Kia

Good stuff.

Can I recommend putting it on GitHub and putting a license on it. The more stuff up there for the platform the better.

Cheers

Monte

Managed to get it on Github with a license as suggested.

Placed under description "ioswifissid" - Livecode IOS External - Get WIFI SSID

Hello.
I tested your extension at the time and it was working great.
Now on iOS 15 I am not abale to install it anymore.
Do you have any clue?
Will you ever create the same extension for Android?

Thanks