In my app i am trying to get network status using NetworkReachability. I tried it when i am under wifi or 3g connection and it works perfectly.
The problem is when i am connected to a personal hotspot/tethering(tested with iPhone to iPhone, Android to iPhone and routers with sim) i get always 3g connection and not wifi.Tested with ios10. Is there any way without using private framework to control if i am under tethering connection or hotspot?
You have check Reachability for internet, Using following link to download Reachability demo project from Apple:
https://developer.apple.com/library/content/samplecode/Reachability/Introduction/Intro.html
,and add both .h and .m files to your project.
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(handleNetworkChange:) name:kReachabilityChangedNotification object:nil];
reachability = [Reachability reachabilityForInternetConnection];
[reachability startNotifier];
- (void) handleNetworkChange:(NSNotification *)notice
{
NetworkStatus remoteHostStatus = [reachability currentReachabilityStatus];
if(remoteHostStatus == NotReachable) {NSLog(#"no");}
else if (remoteHostStatus == ReachableViaWiFi) {NSLog(#"wifi"); }
else if (remoteHostStatus == ReachableViaWWAN) {NSLog(#"cell"); }
}
In GitHub, AFNetworking library provide the check the network Reachability status. Using the Network Reachability Manager object file to detect the status of internet reachability status.
Shared Network Reachability
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
NSLog(#"Reachability: %#", AFStringFromNetworkReachabilityStatus(status));
}];
[[AFNetworkReachabilityManager sharedManager] startMonitoring];
Related
I have in my app check with Reachability check, but in one device in 4G its return me a NotReachable even the iPhone get Facebook messages and whatsapp.
if the iPhone in wifi this work grate.
what can be the problem ?
-(BOOL)isConnectedToInternet {
Reachability *networkReachability = [Reachability reachabilityWithHostName:HOST_NAME];
NetworkStatus networkStatus = [networkReachability currentReachabilityStatus];
return networkStatus != NotReachable;
}
I have always had problems with Reachability. I tend not to use it now and just make the network call. AFNetworking will fail with an NSError with code kCFURLErrorNotConnectedToInternet (-1009) if there's no network.
As per the title, I've turned off Wifi on my iPhone and it has an LTE connection, yet when I call Reachability:currentReachabilityStatus it returns ReachableViaWifi. Code is:
in the init:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(reachabilityChange:)
name:kReachabilityChangedNotification
object:nil];
_reachability = [Reachability reachabilityWithHostName:[[MYURLs defaultServerBaseURL] host]];
[_reachability startNotifier];
NetworkStatus status = [_reachability currentReachabilityStatus];
// here status is NotReachable
....
- (void) reachabilityChange: (NSNotification*) notification
{
NetworkStatus status = [self.reachability currentReachabilityStatus];
// here status is ReachableViaWifi
}
Why is the status ReachableViaWifi when Wifi is disabled?
I'm turning the wifi off before running the code.
In reachabilityChange:, instead of calling [self.reachability currentReachabilityStatus], look at the object of the notification.
- (void) reachabilityChange: (NSNotification*) notification {
Reachability *reach = [notification object];
NetworkStatus status = [reach currentReachabilityStatus];
}
Seems like this is a bug in iOS8 Beta as the same code produces expected results in iOS7.
I just ran into this same issue. Grabbing the latest Reachability classes from Apple fixed it, though.
Reachability
Hi i need to find out whether iPhone internet connected 3G or 2G or WIFI network
any suggestions
Thanks
Sravan
Download Reachability Class for iOS from this link:- https://github.com/tonymillion/Reachability
1)Add Reachability.h &.m in your Project, make sure you make it ARC compatible by adding flag -fno-objc-arc
2)Now, check the connection type in your view controller
Reachability *reachability = [Reachability reachabilityForInternetConnection];
[reachability startNotifier];
NetworkStatus status = [reachability currentReachabilityStatus];
if(status == NotReachable)
{
//No internet
}
else if (status == ReachableViaWiFi)
{
//WiFi
}
else if (status == ReachableViaWWAN)
{
//3G
}
You can use the Reachability library written by tonymillion.
If you don't wan to use ARC, there is also the Apple Reachability library.
Also take a look inside of < CoreTelephony/CTTelephonyNetworkInfo.h >
You will see that there is a currentRadioAccessTechnology property exposed on CTTelephonyNetworkInfo.
CTTelephonyNetworkInfo *netInfo = [[CTTelephonyNetworkInfo alloc] init];
NSLog(#"Radio access technology:\n%#",
netInfo.currentRadioAccessTechnology);
You can subscribe to changes via:
[NSNotificationCenter.defaultCenter
addObserverForName:CTRadioAccessTechnologyDidChangeNotification
object:nil
queue:nil
usingBlock:^(NSNotification __unused *notification) {
CTTelephonyNetworkInfo *current =
[[CTTelephonyNetworkInfo alloc] init];
NSLog(#"Updated Radio access technology:\n%#",
current.currentRadioAccessTechnology);
}];
What I am trying to achieve, is monitor any internet connectivity? So the phone needs an active connection to the internet. If it does display a UIAlertView with the option to Try Again (try the connection again to see if it has changed).
I am trying to use Reachability and connection to the api.parse.com link.
In my AppDelegate I call the setup of Reachability like this:
// Use Reachability to monitor connectivity
[self monitorReachability];
The monitorReachability is setup like this:
- (void)monitorReachability {
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(reachabilityChanged:) name:ReachabilityChangedNotification object:nil];
self.hostReach = [Reachability reachabilityWithHostName: #"api.parse.com"];
[self.hostReach startNotifier];
self.internetReach = [Reachability reachabilityForInternetConnection];
[self.internetReach startNotifier];
self.wifiReach = [Reachability reachabilityForLocalWiFi];
[self.wifiReach startNotifier];
}
I also have the reachability changed method as follows:
EDIT - updated method
- (void)reachabilityChanged:(NSNotification* )note {
Reachability *curReach = (Reachability *)[note object];
NSParameterAssert([curReach isKindOfClass: [Reachability class]]);
NSLog(#"Reachability changed: %#", curReach);
networkStatus = [curReach currentReachabilityStatus];
if (networkStatus == NotReachable) {
NSLog(#"NOT REACHABLE");
return;
} else {
NSLog(#"REACHABLE");
}
What I am trying to understand is the responses back. From the above it looks like I have a pointer to the current status and I am not sure how to use this. Basically I want an if statement to check if that link is reachable via the internet connection, if its not I can through an AlertView. I can then setup a boolean for the UIAlertView to use i.e. showingConnectionAlert, which can then be brought down when the connection is changed and picked up. I am unsure where to put this too.
One of the simplest ways to use the Reachability class is to import the Reachability.h into your rootViewController or whatever one is going to need the connection, then simply run this code...
Reachability *reach = [Reachability reachabilityForInternetConnection];
NetworkStatus netStatus = [reach currentReachabilityStatus];
if (netStatus == NotReachable) {
NSLog(#"No internet connection!");
//Alert View in here
}
else {
//Do something in here with the connecion e.g:
[self performSelector:#selector(startNSURLRequest) withObject:nil afterDelay:30.0];
}
That should simplify the process a bit.. let me know how you get on. T
I am using Reachability in my IOS app to determine a connection.
Following from this post wifi on iphone simulator
If the wifi is turned off the internet connection for the simulator is not available but the phone is still connected to Wifi therefore a connection has not changed. This is all fine and understood and of course I can test on the device itself.
However, I am looking to handle the error that a user is connected to wifi but the wifi has no internet connection like the screenshot below.
I use reachability in the following way:
#pragma mark - ()
- (void)monitorReachability {
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(reachabilityChanged:) name:ReachabilityChangedNotification object:nil];
self.hostReach = [Reachability reachabilityWithHostname: #"api.parse.com"];
[self.hostReach startNotifier];
self.internetReach = [Reachability reachabilityForInternetConnection];
[self.internetReach startNotifier];
self.wifiReach = [Reachability reachabilityForLocalWiFi];
[self.wifiReach startNotifier];
}
//Called by Reachability whenever status changes.
- (void)reachabilityChanged:(NSNotification* )note {
Reachability *curReach = (Reachability *)[note object];
NSParameterAssert([curReach isKindOfClass: [Reachability class]]);
NSLog(#"Reachability changed: %#", curReach);
networkStatus = [curReach currentReachabilityStatus];
}
I am using Reachability for ARC from tonymillion's github here: https://github.com/tonymillion/Reachability
Does anyone know how I can handle this situation of connection with a better error?
create following method in appdelegate to use it on any class.
-(BOOL)isHostAvailable
{
//return NO; // force for offline testing
Reachability *hostReach = [Reachability reachabilityForInternetConnection];
NetworkStatus netStatus = [hostReach currentReachabilityStatus];
return !(netStatus == NotReachable);
}