I am working on an iOS app which has a requirement to automatically connect to a WiFi network. We had requested for a NEHotspotHelper extension from Apple which is approved.
Now I am trying to auto connect to the WiFi network around. But the call to method NEHotspotHelper.register never returns. I have added the entitlement com.apple.developer.networking.HotspotHelper in the entitlement file of the app and am also using a newly created provisioning profile with the said entitlement enabled. Trying to get it work from last week. Looks like a small thing which I am finding difficult to catch. Please help.
Below is my code
if let strWiFi = UserDefaults.standard.value(forKey:"WiFiSSID") as? String {
let queue = DispatchQueue(label: "com.mycompany.myapp")
NEHotspotHelper.register(options: nil, queue: queue,
handler: {(_ cmd: NEHotspotHelperCommand) -> Void in
if cmd.commandType == .evaluate || cmd.commandType == .filterScanList {
var hotspot:NEHotspotNetwork?
for network: NEHotspotNetwork in cmd.networkList! {
print("network name:\(network.ssid)")
if (network.ssid == strWiFi) {
network.setConfidence(.high)
let strPassword = UserDefaults.standard.value(forKey:"WiFiPassword") as? String
network.setPassword(strPassword!)
hotspot = network
}
}
let response = cmd.createResponse(.success)
if(hotspot != nil) {
response.setNetwork(hotspot!)
}
response.deliver()
}
})
Any help is highly appreciated!
EDIT: Now when I tried to disconnect and then reconnecting back to the WiFi then it registration succeeds but returns only the details of currently connected network. I need the details of all WiFi networks around.
Is need to enter in Settings -> Wi-fi, the helper only execute if enter in the screen, I tried too make auto connect, but the user need to select the network to connect in the first time.
If the user select to connect network once, the next time may auto connect, because may enter in command Maintain.
See more: https://forums.developer.apple.com/message/138756#138756
Related
I am trying to connect to the portal object with the authenticated user which is cached and used throughout the app session, to provide the app with a view of a portal that is centered around a single user.
When the app is restarted, the credential must be reinstated, or the user must repeat the authentication process.
But every time when I connect it asks for username and password, I actually want to embed that into the code.
Any workarounds?
Below is my code.
self.portal = AGSPortal(url: URL(string: "https://www.arcgis.com")!, loginRequired: false)
self.portal.credential = AGSCredential(user: "theUser", password: "thePassword")
self.portal.load() {[weak self] (error) in
if let error = error {
print(error)
return
}
if self?.portal.loadStatus == AGSLoadStatus.loaded {
let fullName = self?.portal.user?.fullName
print(fullName!)
}
}
You can use AGSCredentialCache's enableAutoSyncToKeychainWithIdentifier:accessGroup:acrossDevices:accessible: to store credentials in the Keychain and when you re-launch the app, it won't prompt again. Please call this function at the start of the application using AGSAuthenticationManager.shared().credentialCache.
Regards,
Nimesh
I've implemented a WiFi auto-join feature in my app -> Click a button and connect to a named SSID. This works on some devices but also fails on others - meaning it won't even show the Apple pop up asking to join the network. The device might be the same device model, same iOS but fails on some and not on others. This is the error that I see being returned when it fails:
Error Domain=NEHotspotConfigurationErrorDomain Code=10 "cannot modify system configuration." UserInfo={NSLocalizedDescription=cannot modify system configuration.
This is the code used to attempt auto-join:
let WiFiConfig = NEHotspotConfiguration(ssid: "MYSSID")
WiFiConfig.joinOnce = true
NEHotspotConfigurationManager.shared.apply(WiFiConfig) { error in
if error == nil {
//success
} else {
//fail
}
}
Any ideas?
Thanks!
Jennie
I figured out this is unique to our devices using an Embedded Event Manager with a SSID prefilled on the register. That SSID cannot be joined to via the Auto-join feature.
I have the following code:
func OnlineStatus(userID: String){
handle = Auth.auth().addStateDidChangeListener { (auth, user) in
if let user = user {
// User is signed in.
self.UID = user.uid
self.connectedRef.observe(.value, with: { snapshot in
if let connected = snapshot.value as? Bool, connected {
// print("############################ Connected")
self.ref.child(self.UID!).child("OnlineStatus").setValue("ON")
} else {
// print("############################ Not connected")
self.ref.child(self.UID!).child("OnlineStatus").setValue("OFF")
}
self.ref.child(self.UID!).child("OnlineStatus").onDisconnectSetValue("OFF")
})
}}
}
The function will be triggered in viewWillAppear. The idea is to build a simple presence system. For some reason onDisconnect gets fired when I send the app to background and than send my iPhone to sleep. I actually would like that online status goes to off only when user logs out or looses internet connection. What is wrong with my code or settings?
The onDisconnect event fires when the client disconnects from the Firebase Database servers, and that happens when your app goes to the background. There is no difference from Firebase's perspective between the user being on train that drives into a tunnel, and their phone going to sleep. In both cases the connection between the client and the server gets dropped, so the onDisconnect() fires.
You'll typically end up using .info/connected and onDisconnect() to set a value of when the user was last seen, while using onAuthStateChanged() to set a status flag of the user being signed in. Then you show the list of users by first showing users that are signed in, in the order of how recently they were active.
I feel I am the first one in the universe trying to get iOS swift working with Azure, not much help out there.
I followed this Create an iOS app
and then Add Push Notifications to your iOS App. I am supposed to be able to do a successful push notification from iPhone, but I get this error. btw: I can get my C# code to trigger in visual studio in my pc (using this tutorial), so the request seems to be working, but the response sucks. Any one knows how to fix it!!
Error registering for notifications: Optional("Error Domain=com.Microsoft.MicrosoftAzureMobile.ErrorDomain Code=-1302 \"{\"message\":\"An error has occurred.\"}\" UserInfo={com.Microsoft.MicrosoftAzureMobile.ErrorRequestKey=<NSMutableURLRequest: 0x14cebf780> { URL: http://<mysite>.azurewebsites.net/push/installations/1E32E9B5-E976-4CCD-BD61-D026D3F4FF1C }, com.Microsoft.MicrosoftAzureMobile.ErrorResponseKey=<NSHTTPURLResponse: 0x14cec54b0> { URL: http://<mysite>.azurewebsites.net/push/installations/1E32E9B5-E976-4CCD-BD61-D026D3F4FF1C } { status code: 500, headers {\n \"Content-Length\" = 36;\n \"Content-Type\" = \"application/json; charset=utf-8\";\n Date = \"Wed, 11 May 2016 21:39:39 GMT\";\n Server = \"Microsoft-IIS/8.0\";\n \"Set-Cookie\" = \"ARRAffinity=8d79cd782ff16b44f7f280b76e2bc5564d86e0d1b228227b8e0033f4bb1c4582;Path=/;Domain=<mysite>.azurewebsites.net\";\n \"X-Powered-By\" = \"ASP.NET\";\n} }, NSLocalizedDescription={\"message\":\"An error has occurred.\"}}")
UPDATE #1
The only url I have is the one per the tutorial. The rest of the code is identical to the ones I mentioned in the links (I copied it character by character):
class ClientManager {
static let sharedClient = MSClient(applicationURLString: "http://<mysite>.azurewebsites.net")
}
UPDATE #2
#Pau Senabre I am working with swift not Objective-C per my question (see my tags under question), so I don't have an .m file per your step #1. I also don't have the logErrorIfNotNil you mentioned. My method (which is generated by Azure before modifications) looks like this:
#IBAction func addItem(sender : AnyObject) {
self.performSegueWithIdentifier("addItem", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!)
{
if segue.identifier == "addItem" {
let todoController = segue.destinationViewController as! ToDoItemViewController
todoController.delegate = self
}
}
UPDATE #3
#Pau Senabre My goal is to do mobile apps/services, not mobile engagement. See the difference here. btw: I had followed the azure engagement example when I started playing with it and had worked for me. But my need now is web/mobile apps. So, does what you suggested still apply for my need?
Could you please post some code? I think you may be using a wrong URL in a certain place.
To UPDATE #2
Check the following link:
https://github.com/Azure/azure-content/blob/master/articles/mobile-engagement/mobile-engagement-ios-swift-get-started.md
In section Modify your Application Delegate make sure you create a reach module and your existing Engagement initialization has all the init Values.
EngagementAgent.init("Endpoint={YOUR_APP_COLLECTION.DOMAIN};SdkKey={YOUR_SDK_KEY};AppId={YOUR_APPID}", modulesArray:[reach])
The error Code provided Error Domain=com.Microsoft.MicrosoftAzureMobile.ErrorDomain Code=-1302 matches to a bad request. If you are entering some data, make beforehand a Data Input Validation:
1 In the TodoService.m file, locate the addItem method search for the [self logErrorIfNotNil:error]; line of code. Beneath that line of code, replace the remainder of the completion block with the following code that checks to see if there was an error in the request and if that error code was –1302, indicating a bad request:
BOOL badRequest = ((error) && (error.code == -1302));
// detect text validation error from service.
if (!badRequest) // The service responded appropriately
{
NSUInteger index = [itemscount];
[(NSMutableArray *)itemsinsertObject:result atIndex:index];
// Let the caller know that we finished
completion(index);
}
2 Build and run; you can see in the Xcode output window that the bad request error from the service was handled:
2012-10-23 22:01:32.169 Quickstart[5932:11303] ERROR Error Domain=com.Microsoft.WindowsAzureMobileServices.ErrorDomain Code=-1302 “Text length must be under 10″ UserInfo=0x7193850 {NSLocalizedDescription=Text length must be under 10, com.Microsoft.WindowsAzureMobileServices.ErrorResponseKey=, com.Microsoft.WindowsAzureMobileServices.ErrorRequestKey=https://task.azure-mobile.net/tables/TodoItem>}
3 Finally, in the TodoService.m file, locate the logErrorIfNotNil method, which handles the logging of errors to the output window. Inside the if code block, just below the line NSLog(#”ERROR %#”, error); add the following if block:
// added to display description of bad request
if (error.code == -1302){
UIAlertView *av =
[[UIAlertView alloc]
initWithTitle:#”Request Failed”
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#”OK”
otherButtonTitles:nil
];
[av show];
}
Aditionally, review the following steps in the Azure Setup, maybe you are missing something at some point:
https://azure.microsoft.com/en-us/documentation/articles/app-service-mobile-ios-get-started-push/
1 Create a Notification Hub
This creates a new notification hub and connects it to your mobile app. If you have an existing notification hub, you can choose to connect it to your Mobile App backend instead of creating a new one.
2 Register app for push notifications
Register an App ID for your app. Create an explicit App ID (not a wildcard App ID) and for Bundle ID, use the exact Bundle ID that is in your Xcode quickstart project. It is also crucial that you check the Push Notifications option.
Next, configuring push notifications. You may create either a "Development" or "Distribution" SSL certificate (remember to select the corresponding option in the Azure portal later.)
3 Configure Azure to send push notifications
In the Azure portal, click Browse All > App Services > your Mobile App backend > Settings > Mobile > Push > Apple Push Notification Services > Upload Certificate. Upload the .p12 file, selecting the correct Mode (corresponding to whether the client SSL certificate you generated earlier was Development or Distribution.)
4 Update server project to send push notifications
Replace the PostTodoItem method with the following code:
public async Task<IHttpActionResult> PostTodoItem(TodoItem item)
{
TodoItem current = await InsertAsync(item);
// Get the settings for the server project.
HttpConfiguration config = this.Configuration;
MobileAppSettingsDictionary settings =
this.Configuration.GetMobileAppSettingsProvider().GetMobileAppSettings();
// Get the Notification Hubs credentials for the Mobile App.
string notificationHubName = settings.NotificationHubName;
string notificationHubConnection = settings
.Connections[MobileAppSettingsKeys.NotificationHubConnectionString].ConnectionString;
// Create a new Notification Hub client.
NotificationHubClient hub = NotificationHubClient
.CreateClientFromConnectionString(notificationHubConnection, notificationHubName);
// iOS payload
var appleNotificationPayload = "{\"aps\":{\"alert\":\"" + item.Text + "\"}}";
try
{
// Send the push notification and log the results.
var result = await hub.SendAppleNativeNotificationAsync(appleNotificationPayload);
// Write the success result to the logs.
config.Services.GetTraceWriter().Info(result.State.ToString());
}
catch (System.Exception ex)
{
// Write the failure result to the logs.
config.Services.GetTraceWriter()
.Error(ex.Message, null, "Push.SendAsync Error");
}
return CreatedAtRoute("Tables", new { id = current.Id }, current);
}
this is the proper answer from another question I had earlier, which fixes both: Registration and Receiving push notifications. I said this in here:
I finally have been able to receive notifications last night. I went ahead and redid an entire walk-through of all apple-side installation steps using this tutorial: Sending push notifications to iOS with Azure Notification Hubs then the azure-side of things using this: Create an iOS app and Add Push Notifications to your iOS App. That took care of the registering the app of the device successfully, which I was able to verify using the note of AdrianHall in this thread. But that wasn't enough. The Azure tutorials fell short detailing the steps needed in Xcode, which I found here: [How To] Setup Remote Push Notification in iOS - Swift 2.0 Code I didn't have to setup any "push notification" in Xcode or anything like that.
I hope this detailed answer will save you many hours of digging through.
I am writing an ios app that relies on being able to tell when a user is connected to wifi and, when he or she connects or disconnects, send an asynchronous request using alamo fire.
The first time I connect, my asynchronous succeeds.
However, after I first connect, any toggling of the wifi results in 404s.
I suspect this is because I am sending the request as soon as the user connects/disconnects, meaning that for a brief moment he or she has no internet service.
My question is, can I repeat the request if it fails or is it possible to "cache" the requests I want to make and wait until the user has internet connection to make them?
There are many solutions to solve this. One is to call the download method recursively again and so implementing an automatic retry mechanism on errors:
func downloadSomething() {
Alamofire.request(.GET, "https://httpbin.org/get", parameters: ["foo": "bar"])
.response { request, response, data, error in
if let error = error {
log(error)
self.downloadSomething() // recursive call to downloadSomething
} else {
// do something on success
}
}
}
You can extend this by:
showing the user also an altert view asking him if he want's to retry
the download or not before retrying the download. (depending on your
UI strategy on network errors)
a specified count of automatic re-trys and then ask the user.
checking the error status code and then depending on the code do
different network error handling strategies...
etc...
I think there is no needed to re-invented apple code like reachability or this swift reachability porting. You can able to check if a user is connected to the net or wifi very easily:
class func hasConnectivity() -> Bool {
let reachability: Reachability = Reachability.reachabilityForInternetConnection()
let networkStatus: Int = reachability.currentReachabilityStatus().rawValue
return networkStatus != 0
}
For a Wi-Fi connection:
(reachability.currentReachabilityStatus().value == ReachableViaWiFi.value)