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Qt Positioning not working in iOS

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  • K Offline
    K Offline
    kolegs
    wrote on last edited by kolegs
    #8

    Maybe try examples available, like: "Weather Info"?

    1 Reply Last reply
    0
    • M Offline
      M Offline
      m_andrej
      wrote on last edited by
      #9

      Weather info doesn't work either. It just shows "Loading weather data" indefinitely.

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #10

        What version of iOS and Xcode are you using ? (latest can change pretty quickly)

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

        M 1 Reply Last reply
        0
        • SGaistS SGaist

          What version of iOS and Xcode are you using ? (latest can change pretty quickly)

          M Offline
          M Offline
          m_andrej
          wrote on last edited by
          #11

          I have Xcode 7.1.1 and iOS 9.1 both on device and simulator. I added this information to the first post.

          I already verified that I can make a Hello World iOS app in XCode, which successfully obtains user position using native code (CLLocationManager).

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          0
          • L Offline
            L Offline
            ldanzinger
            wrote on last edited by
            #12

            You might need to add the following keys to your plist

            • NSLocationAlwaysUsageDescription
            • NSLocationWhenInUseUsageDescription

            You also may need to add either of the following to your project file

            QT += positioning sensors

            TavisT 1 Reply Last reply
            2
            • M Offline
              M Offline
              m_andrej
              wrote on last edited by m_andrej
              #13

              I already implemented this using native code. But thanks. Maybe this helps somebody else.

              BTW I used the class CLLocationManager-blocks (https://github.com/axldyb/CLLocationManager-blocks). Thanks to this I was able to implement it by a brief Objective-C snippet in a QObject subclass. The position-update-handler was just an objective-C Block rather than Delegate. Writing the Delegate would have required to subclass NSObject.

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              • L ldanzinger

                You might need to add the following keys to your plist

                • NSLocationAlwaysUsageDescription
                • NSLocationWhenInUseUsageDescription

                You also may need to add either of the following to your project file

                QT += positioning sensors

                TavisT Offline
                TavisT Offline
                Tavis
                wrote on last edited by
                #14

                @ldanzinger All you need to do in order to get QTPositioning to work is add <key>NSLocationAlwaysUsageDescription</key>
                to your info.plist file.

                create an iOS folder in the root of your project and place your info.plist file in there then add the following to you .pro file

                ios {
                QMAKE_INFO_PLIST = ios/Info.plist
                }

                This fixes the geoflickr example qt quick app.

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                • B Offline
                  B Offline
                  beak
                  wrote on last edited by
                  #15

                  IOS10.2
                  work only simulator, on device not work

                  QGeoPositionInfoSource::createDefaultSource(0) is NULL
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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #16

                    Did you got asked for permission ?

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

                    B 1 Reply Last reply
                    1
                    • E Offline
                      E Offline
                      ealltech
                      wrote on last edited by
                      #17

                      I ask for the location at the begining of the program so it shows same time application starts.
                      Btw I did not add anything to my Info.plist, so I am not sure if it is required

                      1 Reply Last reply
                      0
                      • SGaistS SGaist

                        Did you got asked for permission ?

                        B Offline
                        B Offline
                        beak
                        wrote on last edited by
                        #18

                        @SGaist
                        ask permision only simulator
                        on real device dont ask

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                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          Then check that you allowed the GPS to be used.

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

                          B 1 Reply Last reply
                          0
                          • SGaistS SGaist

                            Then check that you allowed the GPS to be used.

                            B Offline
                            B Offline
                            beak
                            wrote on last edited by
                            #20

                            @SGaist where check?
                            in device Settings->Privacy->Location Service
                            there is no my application

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                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #21

                              Then delete the application from your device and install it again. Do not just re-run your application, nuke it from the device before starting it again.

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

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