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MQTT client for QT

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  • F Offline
    F Offline
    Ferni
    wrote on 18 May 2016, 17:33 last edited by
    #1

    Hi guys!
    I'm currently working with this MQTT client for qt (https://github.com/emqtt/qmqtt) but I have some problems. First I had an error due to the old version of qt and adding #include "QString" in qmqtt_routedmessage.h it's solved. Now I can build it and run it for Desktop but when I try to run it in my android device just doesn't work.
    This is the first error I receive:

    E/dalvikvm( 4873): dlopen("/data/app-lib/org.qtproject.example.qmqtt_example-1/libqmqtt_example.so") failed: Cannot load library: soinfo_link_image(linker.cpp:1635): could not load library "libqmqtt.so" needed by "libqmqtt_example.so"; caused by load_library(linker.cpp:745): library "libqmqtt.so" not found
    The funny thing is that I can build the project for my android target but the problem comes when I try to run it.

    What am I doing wrong? Has anyone create a "Hello world" with MQTT for android? Btw I use API 17.

    Many thanks,
    Fernando

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    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 18 May 2016, 23:10 last edited by
      #2

      Hi,

      AFAIK, you need to add your dependencies to the list of things to deploy. See here for more information.

      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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      • M Offline
        M Offline
        MLGDN
        wrote on 16 Jun 2016, 02:09 last edited by
        #3

        I also want to use the qmqtt to achieve message push, but now I have a big problem. As it uses signals and slots to transmit data, how to invoke it in android server.

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        • S Offline
          S Offline
          SGaist
          Lifetime Qt Champion
          wrote on 16 Jun 2016, 21:10 last edited by
          #4

          Android server ?

          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 20 Jun 2016, 06:26
          0
          • S SGaist
            16 Jun 2016, 21:10

            Android server ?

            M Offline
            M Offline
            MLGDN
            wrote on 20 Jun 2016, 06:26 last edited by
            #5

            @SGaist

            If I want to be able to accept the notification when the application is not started,i think i should use the android to create a Background server , and to keep long connection with my server proxy, was i wrong?

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            • S Offline
              S Offline
              SGaist
              Lifetime Qt Champion
              wrote on 20 Jun 2016, 06:45 last edited by
              #6

              Do you mean a background service ?

              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 21 Jun 2016, 01:08
              0
              • S SGaist
                20 Jun 2016, 06:45

                Do you mean a background service ?

                M Offline
                M Offline
                MLGDN
                wrote on 21 Jun 2016, 01:08 last edited by
                #7

                @SGaist

                yes

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                • S Offline
                  S Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on 21 Jun 2016, 07:25 last edited by
                  #8

                  IIRC, background services with Qt are part of 5.7

                  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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