I am developing an app in Xamarin Forms, which connects to some IoT devices which do not have an Internet connection available.
The IoT device expose a free WIFI hotspot to which the app connects. On iOS side, to perform the connection I use the NEHotspotConfigurationManager.SharedManager.ApplyConfiguration method with a NEHotspotConfiguration object. This is the part of the code I use to perform the connection:
NEHotspotConfiguration configuration = new NEHotspotConfiguration(ssid);
NEHotspotConfigurationManager.SharedManager.ApplyConfiguration(configuration, (NSError error) =>
{
if (error != null)
{
if (error.LocalizedDescription == "already associated.")
{
return true;
}
else
{
return false;
}
}
else
{
return true;
}
});
Everything works fine, the app successfully connects the IoT device and I am able to interact with it once the connection is established.
But sometimes a prompt is shown informing that The Wi-Fi network "name-of-wifi" does not appear to be connected to the internet. Do you want to temporarily use cellular data?
Is there any way to avoid this prompt to be shown. I read that setting joinOnce to true in the NEHotspotConfiguration object could to the trick but, with this flag = true, once the app is put in background the connection with the IoT device is interrupted.
Is it possible to leave joinOnce set to false and avoid the prompt mentioned above?
I am trying to connect to a hardware device using NEHotspotConfigurationManager on an iPhone XR. I have successfully connected on many different networks, but on my home network, it is failing with the error code 11, which is unknown. Does anyone know what this means?
I have tried restarting my iPhone, but that didn't help. I've also verified it has nothing to do with the hardware device by setting the ssidPrefix to something random, but again, that made no difference.
Here is the code that throws the error:
if #available(iOS 13.0, *) {
let config = NEHotspotConfiguration(ssidPrefix: "mySsidPrefix")
NEHotspotConfigurationManager.shared.apply(config) { (error) in
if error != nil {
// handle error
} else {
// connect to device
}
}
}
Like I said, this works on all networks I have tried, but does not on my home network. I have Comcast and I am using an Arris modem with Google WiFi mesh routers.
EDIT: This actually isn't just happening on my home network. I disconnected from WiFi and it's still happening.
I am using NEHotspotConfigurationManager to connect wifi programmatically.
Its an open Network without any password
I am using below code:
if (#available(iOS 11.0, *)) {
NEHotspotConfiguration *config = [[NEHotspotConfiguration
alloc]initWithSSID:SSIDName];
[NEHotspotConfigurationManager.sharedManager applyConfiguration:config completionHandler:^(NSError* error) {
if (error) {
printf([error description]);
}
else
{
printf(#"success");
}
}];
I am connecting to the hostpot/access point of one device, but every time I am getting an error of unable to join but in response it goes to success as the error is nil. Is there any thing I need to add in configuration or add in setting or am I missing anything ?
PS: The wifi is of IOT device
-Thanks in advance
This is an Apple bug in iOS.
Once the request has made it past the Network Extension framework, down to the Wi-Fi subsystem, errors are displayed to the user rather than delivered to your completion handler.
see https://forums.developer.apple.com/thread/96834
What you can do as a workaround:
try to connect
if the error is nil, you may be connected (due to the above mentioned bug this is unclear)
then check which network you are connected to
For more information, including sample code, see my answer here: https://stackoverflow.com/a/56589229/2331445
Additional Hints
Entitlement
Like #zero3nna already mentioned in the comments, the Hotspot Configuration entitlement must be added.
Check SSID name
Make sure you spelled the SSID correctly. I made a test with a NanoESP IoT device and for my device the definition would look like this:
NSString *SSIDName = #"NanoESP";
If you are using a non-existent SSID name (e.g. NanoESP2), there is a dialog that says that it is not possible to join the network.
Due to the above mentioned error you will get a success message in the console of Xcode, which is of course wrong:
Delayed Wi-Fi indicator
I have noticed that using the correct SSID works, but it takes quite some time for this connection to my specific IoT device to appear with the typical icon in the iOS status bar. For some time it's just not shown, see screenshot. To check the status anyway, go to iOS Settings / Wi-Fi:
I know it has been asked before but I am asking again to make sure I didn't miss anything. I am currently using the next code in order to connect a specific hotspot. This prompt a message to the user -
let configuration = NEHotspotConfiguration(ssid: ssid,
passphrase: password,
isWEP: false)
NEHotspotConfigurationManager.shared.apply(configuration)
Is there anyway I can connect automatically without prompting this message? I need to switch between hotspots every few minutes. I don't mind showing the message once and after that connecting automatically but is there any way I can do it?
I am trying to replicate an existing Android Application that I made to iOS. In my application, I should be able to connect to a WiFi network given the SSID and the Password. The SSID and the Password can be hardcoded or can be inputted by the user. I was going through the internet to research how this can be done on iOS, however, it seems that this behavior is highly discouraged and that there's no way on doing this using public/documented libraries that won't get your application rejected by the App Store.
The thing is I'll be using this application personally and I don't plan on submitting it to the App Store so it's okay if I use external libraries. If my friends would want to use it, I could export an enterprise ipa and give them instructions on how to install it.
Upon searching, it seemed that MobileWifi.framework was a good candidate. However, it does not seem that there's a straightforward way of using this library to connect to a WiFi network given the SSID and the Password.
Is there anyone who has successfully tried to connect to a Wifi Network given the SSID and Password?
With iOS 11, Apple provided public API you can use to programmatically join a WiFi network without leaving your app.
The class you’ll need to use is called NEHotspotConfiguration.
To use it, you need to enable the Hotspot capability in your App Capabilities (Adding Capabilities). Quick working example :
NEHotspotConfiguration *configuration = [[NEHotspotConfiguration
alloc] initWithSSID:#“SSID-Name”];
configuration.joinOnce = YES;
[[NEHotspotConfigurationManager sharedManager] applyConfiguration:configuration completionHandler:nil];
This will prompt the user to join the “SSID-Name” WiFi network. It will stay connected to the WiFi until the user leaves the app.
This doesn't work with the simulator you need to run this code with an actual device to make it work.
More informations here :
https://developer.apple.com/documentation/networkextension/nehotspotconfiguration
connect wifi networks in iOS 11. You can connect wifi using ssid and password like following.
Enable Hotspot on App Id configure services
After Enable Hotspot Configuration
Swift 4.0 Code for iOS 11 Only:
import NetworkExtension
...
let configuration = NEHotspotConfiguration.init(ssid: "SSIDname", passphrase: "Password", isWEP: false)
configuration.joinOnce = true
NEHotspotConfigurationManager.shared.apply(configuration) { (error) in
if error != nil {
if error?.localizedDescription == "already associated."
{
print("Connected")
}
else{
print("No Connected")
}
}
else {
print("Connected")
}
}
Contrary to what you see here and other places, you can do it. It's hard to make pretty enough for normal users, but if doesn't have to be then it's really easy to code. It's an enterprise admin thing, but anyone can do it. Look up "Connection Profiles." Comcast does this in their iOS app to setup their hotspots for you, for example.
Basically, it's an XML document that you get the device to ingest via Safari or Mail. There's a lot of tricks to it and the user experience isn't great, but I can confirm that it works in iOS 10 and it doesn't require jailbreaking. You use Configurator to generate the XML, and I suggest this thread for serving it (but people don't find it because it's not specifically about WiFi), and this blog for querying if it's installed which is surprisingly nontrivial but does indeed work.
I've answered this question many times, but either don't have enough rep or am too dumb to figure out how to close questions as duplicate so better answers can be found more easily.
UPDATE: iOS 11 provides APIs for this functionality directly (finally!). See NEHotspotConfiguration. Our Xamarin C# code now looks like:
var config = new NEHotspotConfiguration(Ssid, Pw, false);
config.JoinOnce = false;
Short answer, no.
Long answer :)
This question was asked many times:
Connect to WiFi programmatically in ios
connect to a specific wifi programmatically in ios with a given SSID and Password
Where do I find iOS Obj-C code to scan and connect to wifi (private API)
Programmatically auto-connect to WiFi iOS
The most interesting answer seems to be in the first link which points to a GitHub project: wifiAssociate. However someones in the third link explains that this doesn't work anymore with iOS8 so you might have hard time getting it running.
Furthermore the iDevice must be jailbroken.
Make sure both Network Extensions & Hotspot Configuration are turned on in Capabilities.
let wiFiConfig = NEHotspotConfiguration(ssid: YourSSID,
passphrase: YourPassword, isWEP: false)
wiFiConfig.joinOnce = false /*set to 'true' if you only want to join
the network while the user is within the
app, then have it disconnect when user
leaves your app*/
NEHotspotConfigurationManager.shared.apply(wiFiConfig) { error in
if error != nil {
//an error occurred
print(error?.localizedDescription)
}
else {
//success
}
}
my two cents:
if you got:
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_NEHotspotConfigurationManager", referenced from:
objc-class-ref in WiFiViewController.o "_OBJC_CLASS_$_NEHotspotConfiguration", referenced from:
objc-class-ref in WiFiViewController.o ld: symbol(s) not found for architecture i386
simply it does NOT work under simulator.
on real device it does compile.
so use:
class func startHotspotHelperStuff(){
if TARGET_IPHONE_SIMULATOR == 0 {
if #available(iOS 11.0, *) {
let configuration = NEHotspotConfiguration(ssid: "ss")
configuration.joinOnce = true
NEHotspotConfigurationManager.shared.apply(configuration, completionHandler: { (err: Error?) in
print(err)
})
} else {
// Fallback on earlier versions
}
}// if TARGET_IPHONE_SIMULATOR == 0
}
We can programmatically connect wifi networks after IOS 11. You can connect wifi using ssid and password like following.
Swift
var configuration = NEHotspotConfiguration.init(ssid: "wifi name", passphrase: "wifi password", isWEP: false)
configuration.joinOnce = true
NEHotspotConfigurationManager.shared.apply(configuration) { (error) in
if error != nil {
//an error accured
print(error?.localizedDescription)
}
else {
//success
}
}
You can connect to wifi using Xcode 9 and swift 4
let WiFiConfig = NEHotspotConfiguration(ssid: "Mayur1",
passphrase: "123456789",
isWEP: false)
WiFiConfig.joinOnce = false
NEHotspotConfigurationManager.shared.apply(WiFiConfig) { error in
// Handle error or success
print(error?.localizedDescription)
}
I'm not sure if this will help anyone but there IS a Wifi QR code that Apple put into iOS since version 9 if I'm not mistaken. It's been there a while.
You can go here: https://qifi.org
Put your SSID and password in. Print out the QR code or just keep it on a screen. Point the iPhone at the QR code using the camera app. You will get a notification bar that if you press will setup your WIFI connection on the fly.
This 'should' work with Android but I haven't test it yet. It DOES work with iOS.
The nice thing with this solution is you can make your WIFI base 'hidden' on the network and folks can still connect to it which is very desirable in a high traffic area for security reasons.