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    [solved][iOS][Qt 5.4] QNetworkConfiguration, get bearer type not working

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    • K
      kolegs last edited by SGaist

      Hey,

      I got a problem with getting bearer type from QNetworkConfiguration class on iOS, not sure if I'm missing some permissions for my app or it just simply is not working.

      I try to get information if the user is connected to the internet by WLAN or 3G but the only thing I get is active configurations, the type is always Unknown.

      the code below:
      @QNetworkConfigurationManager a;
      QList<QNetworkConfiguration> ttt = a.allConfigurations();
      for(int i = 0 ; i < ttt.count(); i++)
      {
      if(ttt.at(i).state() & (0x8))
      qDebug() << "ACTIVE:" << ttt.at(i).bearerTypeName() << ttt.at(i).bearerType();
      else
      qDebug() << "INACTIVE:" << ttt.at(i).bearerTypeName() --<< ttt.at(i).bearerType();
      }@

      On my iPad it discovers 2 active interfaces and 1 inactive but all of them are unknown.

      Any solutions? Do I need to use Objective-C to get this?

      1 Reply Last reply Reply Quote 0
      • SGaist
        SGaist Lifetime Qt Champion last edited by

        Hi,

        I know it might be a silly question but, are you using a real device or the iOS simulator ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply Reply Quote 0
        • K
          kolegs last edited by

          Real device, as I said its ipad mini

          1 Reply Last reply Reply Quote 0
          • M
            metzgore last edited by metzgore

            Have you found a solution for your problem? I'm having the same and I don't want to use Objective-C if it works straight with Qt.

            1 Reply Last reply Reply Quote 0
            • K
              kolegs last edited by

              I couldn't figure it out, how to deal with the problem using Qt, so I was forced to use Objective-C. Its rather easy.

              1 Reply Last reply Reply Quote 0
              • M
                metzgore last edited by

                Could you post some example?
                Currently I'm trying to resolve my issue by using Reachability.h and Reachability.m which are metioned here, but I can't get it to work.

                1 Reply Last reply Reply Quote 0
                • K
                  kolegs last edited by kolegs

                  Sure, I got one class in objective-C and one parser between objective-c and cpp.

                  First object-C code to get what you want(reachability.m):

                  /*
                       File: Reachability.m
                   Abstract: Basic demonstration of how to use the SystemConfiguration Reachablity APIs.
                    Version: 3.5
                  
                   Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
                   Inc. ("Apple") in consideration of your agreement to the following
                   terms, and your use, installation, modification or redistribution of
                   this Apple software constitutes acceptance of these terms.  If you do
                   not agree with these terms, please do not use, install, modify or
                   redistribute this Apple software.
                  
                   In consideration of your agreement to abide by the following terms, and
                   subject to these terms, Apple grants you a personal, non-exclusive
                   license, under Apple's copyrights in this original Apple software (the
                   "Apple Software"), to use, reproduce, modify and redistribute the Apple
                   Software, with or without modifications, in source and/or binary forms;
                   provided that if you redistribute the Apple Software in its entirety and
                   without modifications, you must retain this notice and the following
                   text and disclaimers in all such redistributions of the Apple Software.
                   Neither the name, trademarks, service marks or logos of Apple Inc. may
                   be used to endorse or promote products derived from the Apple Software
                   without specific prior written permission from Apple.  Except as
                   expressly stated in this notice, no other rights or licenses, express or
                   implied, are granted by Apple herein, including but not limited to any
                   patent rights that may be infringed by your derivative works or by other
                   works in which the Apple Software may be incorporated.
                  
                   The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
                   MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
                   THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
                   FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
                   OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
                  
                   IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
                   OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                   INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
                   MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
                   AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
                   STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
                   POSSIBILITY OF SUCH DAMAGE.
                  
                   Copyright (C) 2014 Apple Inc. All Rights Reserved.
                  
                   */
                  
                  #import <arpa/inet.h>
                  #import <ifaddrs.h>
                  #import <netdb.h>
                  #import <sys/socket.h>
                  
                  #import <CoreFoundation/CoreFoundation.h>
                  
                  #import "reachability.h"
                  
                  
                  NSString *kReachabilityChangedNotification = @"kNetworkReachabilityChangedNotification";
                  
                  
                  #pragma mark - Supporting functions
                  
                  #define kShouldPrintReachabilityFlags 0
                  
                  static void PrintReachabilityFlags(SCNetworkReachabilityFlags flags, const char* comment)
                  {
                  #if kShouldPrintReachabilityFlags
                  
                      NSLog(@"Reachability Flag Status: %c%c %c%c%c%c%c%c%c %s\n",
                            (flags & kSCNetworkReachabilityFlagsIsWWAN)               ? 'W' : '-',
                            (flags & kSCNetworkReachabilityFlagsReachable)            ? 'R' : '-',
                  
                            (flags & kSCNetworkReachabilityFlagsTransientConnection)  ? 't' : '-',
                            (flags & kSCNetworkReachabilityFlagsConnectionRequired)   ? 'c' : '-',
                            (flags & kSCNetworkReachabilityFlagsConnectionOnTraffic)  ? 'C' : '-',
                            (flags & kSCNetworkReachabilityFlagsInterventionRequired) ? 'i' : '-',
                            (flags & kSCNetworkReachabilityFlagsConnectionOnDemand)   ? 'D' : '-',
                            (flags & kSCNetworkReachabilityFlagsIsLocalAddress)       ? 'l' : '-',
                            (flags & kSCNetworkReachabilityFlagsIsDirect)             ? 'd' : '-',
                            comment
                            );
                  #endif
                  }
                  
                  
                  static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info)
                  {
                  #pragma unused (target, flags)
                      NSCAssert(info != NULL, @"info was NULL in ReachabilityCallback");
                      NSCAssert([(__bridge NSObject*) info isKindOfClass: [Reachability class]], @"info was wrong class in ReachabilityCallback");
                  
                      Reachability* noteObject = (__bridge Reachability *)info;
                      // Post a notification to notify the client that the network reachability changed.
                      [[NSNotificationCenter defaultCenter] postNotificationName: kReachabilityChangedNotification object: noteObject];
                  }
                  
                  
                  #pragma mark - Reachability implementation
                  
                  @implementation Reachability
                  {
                      BOOL _alwaysReturnLocalWiFiStatus; //default is NO
                      SCNetworkReachabilityRef _reachabilityRef;
                  }
                  
                  + (instancetype)reachabilityWithHostName:(NSString *)hostName
                  {
                      Reachability* returnValue = NULL;
                      SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(NULL, [hostName UTF8String]);
                      if (reachability != NULL)
                      {
                          returnValue= [[self alloc] init];
                          if (returnValue != NULL)
                          {
                              returnValue->_reachabilityRef = reachability;
                              returnValue->_alwaysReturnLocalWiFiStatus = NO;
                          }
                      }
                      return returnValue;
                  }
                  
                  
                  + (instancetype)reachabilityWithAddress:(const struct sockaddr_in *)hostAddress
                  {
                      SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithAddress(kCFAllocatorDefault, (const struct sockaddr *)hostAddress);
                  
                      Reachability* returnValue = NULL;
                  
                      if (reachability != NULL)
                      {
                          returnValue = [[self alloc] init];
                          if (returnValue != NULL)
                          {
                              returnValue->_reachabilityRef = reachability;
                              returnValue->_alwaysReturnLocalWiFiStatus = NO;
                          }
                      }
                      return returnValue;
                  }
                  
                  
                  
                  + (instancetype)reachabilityForInternetConnection
                  {
                      struct sockaddr_in zeroAddress;
                      bzero(&zeroAddress, sizeof(zeroAddress));
                      zeroAddress.sin_len = sizeof(zeroAddress);
                      zeroAddress.sin_family = AF_INET;
                  
                      return [self reachabilityWithAddress:&zeroAddress];
                  }
                  
                  
                  + (instancetype)reachabilityForLocalWiFi
                  {
                      struct sockaddr_in localWifiAddress;
                      bzero(&localWifiAddress, sizeof(localWifiAddress));
                      localWifiAddress.sin_len = sizeof(localWifiAddress);
                      localWifiAddress.sin_family = AF_INET;
                  
                      // IN_LINKLOCALNETNUM is defined in <netinet/in.h> as 169.254.0.0.
                      localWifiAddress.sin_addr.s_addr = htonl(IN_LINKLOCALNETNUM);
                  
                      Reachability* returnValue = [self reachabilityWithAddress: &localWifiAddress];
                      if (returnValue != NULL)
                      {
                          returnValue->_alwaysReturnLocalWiFiStatus = YES;
                      }
                  
                      return returnValue;
                  }
                  
                  
                  #pragma mark - Start and stop notifier
                  
                  - (BOOL)startNotifier
                  {
                      BOOL returnValue = NO;
                      SCNetworkReachabilityContext context = {0, (__bridge void *)(self), NULL, NULL, NULL};
                  
                      if (SCNetworkReachabilitySetCallback(_reachabilityRef, ReachabilityCallback, &context))
                      {
                          if (SCNetworkReachabilityScheduleWithRunLoop(_reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode))
                          {
                              returnValue = YES;
                          }
                      }
                  
                      return returnValue;
                  }
                  
                  
                  - (void)stopNotifier
                  {
                      if (_reachabilityRef != NULL)
                      {
                          SCNetworkReachabilityUnscheduleFromRunLoop(_reachabilityRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
                      }
                  }
                  
                  
                  - (void)dealloc
                  {
                      [self stopNotifier];
                      if (_reachabilityRef != NULL)
                      {
                          CFRelease(_reachabilityRef);
                      }
                  }
                  
                  
                  #pragma mark - Network Flag Handling
                  
                  - (NetworkStatus)localWiFiStatusForFlags:(SCNetworkReachabilityFlags)flags
                  {
                      PrintReachabilityFlags(flags, "localWiFiStatusForFlags");
                      NetworkStatus returnValue = NotReachable;
                  
                      if ((flags & kSCNetworkReachabilityFlagsReachable) && (flags & kSCNetworkReachabilityFlagsIsDirect))
                      {
                          returnValue = ReachableViaWiFi;
                      }
                  
                      return returnValue;
                  }
                  
                  
                  - (NetworkStatus)networkStatusForFlags:(SCNetworkReachabilityFlags)flags
                  {
                      PrintReachabilityFlags(flags, "networkStatusForFlags");
                      if ((flags & kSCNetworkReachabilityFlagsReachable) == 0)
                      {
                          // The target host is not reachable.
                          return NotReachable;
                      }
                  
                      NetworkStatus returnValue = NotReachable;
                  
                      if ((flags & kSCNetworkReachabilityFlagsConnectionRequired) == 0)
                      {
                          /*
                           If the target host is reachable and no connection is required then we'll assume (for now) that you're on Wi-Fi...
                           */
                          returnValue = ReachableViaWiFi;
                      }
                  
                      if ((((flags & kSCNetworkReachabilityFlagsConnectionOnDemand ) != 0) ||
                          (flags & kSCNetworkReachabilityFlagsConnectionOnTraffic) != 0))
                      {
                          /*
                           ... and the connection is on-demand (or on-traffic) if the calling application is using the CFSocketStream or higher APIs...
                           */
                  
                          if ((flags & kSCNetworkReachabilityFlagsInterventionRequired) == 0)
                          {
                              /*
                               ... and no [user] intervention is needed...
                               */
                              returnValue = ReachableViaWiFi;
                          }
                      }
                  
                      if ((flags & kSCNetworkReachabilityFlagsIsWWAN) == kSCNetworkReachabilityFlagsIsWWAN)
                      {
                          /*
                           ... but WWAN connections are OK if the calling application is using the CFNetwork APIs.
                           */
                          returnValue = ReachableViaWWAN;
                      }
                  
                      return returnValue;
                  }
                  
                  
                  - (BOOL)connectionRequired
                  {
                      NSAssert(_reachabilityRef != NULL, @"connectionRequired called with NULL reachabilityRef");
                      SCNetworkReachabilityFlags flags;
                  
                      if (SCNetworkReachabilityGetFlags(_reachabilityRef, &flags))
                      {
                          return (flags & kSCNetworkReachabilityFlagsConnectionRequired);
                      }
                  
                      return NO;
                  }
                  
                  
                  - (NetworkStatus)currentReachabilityStatus
                  {
                      NSAssert(_reachabilityRef != NULL, @"currentNetworkStatus called with NULL SCNetworkReachabilityRef");
                      NetworkStatus returnValue = NotReachable;
                      SCNetworkReachabilityFlags flags;
                  
                      if (SCNetworkReachabilityGetFlags(_reachabilityRef, &flags))
                      {
                          if (_alwaysReturnLocalWiFiStatus)
                          {
                              returnValue = [self localWiFiStatusForFlags:flags];
                          }
                          else
                          {
                              returnValue = [self networkStatusForFlags:flags];
                          }
                      }
                  
                      return returnValue;
                  }
                  
                  
                  @end
                  

                  Then myobject.mm:

                  #import "MyObject.h"
                  
                  @implementation MyObject
                  
                  MyClassImpl::MyClassImpl( void )
                      : self( NULL )
                  {
                      if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)])
                      {
                          [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
                          
                      }
                      else
                      {
                          [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
                           (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
                      }
                  }
                  
                  MyClassImpl::~MyClassImpl( void )
                  {
                      [(id)self dealloc];
                  }
                  
                  void MyClassImpl::init( void )
                  {
                      self = [[MyObject alloc] init];
                  }
                  
                  
                  
                  int MyClassImpl::doSomethingWith( void *aParameter )
                  {
                      
                      
                      
                      
                      
                      Reachability *reachability = [Reachability reachabilityForInternetConnection];
                      [reachability startNotifier];
                  
                      NetworkStatus status = [reachability currentReachabilityStatus];
                  
                      if(status == NotReachable)
                      {
                          return -1;
                          //No internet
                      }
                      else if (status == ReachableViaWiFi)
                      {
                          return 0;
                          //WiFi
                      }
                      else if (status == ReachableViaWWAN)
                      {
                          return 1;
                          //3G or 4G
                      }
                      return [(id)self doSomethingWith:aParameter];
                  }
                  
                  void MyClassImpl::logMyMessage( char *aCStr )
                  {
                      [(id)self doLogMessage:aCStr];
                  }
                  
                  - (int) doSomethingWith:(void *) aParameter
                  {
                      int result = 0;
                  
                      // ... some code to calculate the result
                  
                      return result;
                  }
                  
                  - (void) logMyMessage:(char *) aCStr
                  {
                      //NSLog( aCStr );
                  }
                  
                  @end
                  

                  MyObject.h:

                  #import "MyObject-C-Interface.h"
                  #import <Foundation/Foundation.h>
                  #import <UIKit/UIKit.h>
                  #import "reachability.h"
                  
                  @interface MyObject : NSObject
                  {
                      int someVar;
                  }
                  
                  - (int)  doSomethingWith:(void *) aParameter;
                  - (void) logMyMessage:(char *) aCStr;
                  
                  @end
                  

                  and myobject-c-interface.h

                  #ifndef __MYOBJECT_C_INTERFACE_H__
                  #define __MYOBJECT_C_INTERFACE_H__
                  
                  class MyClassImpl
                  {
                  public:
                      MyClassImpl ( void );
                      ~MyClassImpl( void );
                  
                      void init( void );
                      int  doSomethingWith( void * aParameter );
                      void logMyMessage( char * aCStr );
                  
                  private:
                      void * self;
                  };
                  
                  #endif
                  

                  Now you only need to include myobject-c-interface.h
                  and use the function int doSomethingWith( void * aParameter );

                  I know its not ideal but doest works and needs to refractor some names, but I used it only a few times.
                  It only discovers if the phone is connected through 3g/4g(1) or wifi(0), or its disconnected(-1).

                  1 Reply Last reply Reply Quote 1
                  • M
                    metzgore last edited by

                    Worked like a charm, thank you very much. :)

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