Mobile and Embedded

@johnyboy have you already checked the examples?

@alexey-petrenko no answer? I can't analyse with QML Profiler

I also encountered the problem, I can't resolve the problem so far, so could you tell me your means to solve the problem? thank you!

@johnyboy said in OpenSSL forAndroid: @raven-worx @SGaist Why would someone use openssl for android? That is, could you name you some applications for which openssl for android can be used for? Anything that requires secure and encrypted network connections.

@jsulm Thx. I've been checking it. Issue closed.

@Iheb Could you share your new working code please?

@lucaszanella could you show your project file (.pro)? In addition, do you have any Java code in your project? If so, could you also show that?` Just in case, and to check that your Qt Creator/Android environment is setup OK, are you able to run any Android example? like Qt Notifier or Qt JNI Messenger?

SOLVED: By setting the QT_DEBUG_PLUGINS variable and launching the program it shows the list of available plugins, styles included. The program uses, by default, the style bb10dark. Using the parameter -style bb10bright (or cleanlooks, cde, plastique) the application has the correct colors. Example : ./my_test_program -platform linuxfb -style cde

I don't know the answer but I'd definitely recommend using newer Qt for this. Cmake support for Android is a new thing, it may work better in newer release (like 5.15).

@Ivan_Gorchev ,What it worked for me is to copy the image with netcat, and mounted it on my host, so I was able to have a copy for the whole emmc data in my host. You just need to open a connection between the host and the target with two commands: Host ->sudo nc -l 19000|dd bs=1M of=name.img i.e sudo nc -l 19000|dd bs=1M of=bbb-with-ssl-and-icu-dev.img Target ->sudo dd bs=1M if=/dev/blocktocopy|nc host_ip_address 19000 i.e sudo dd bs=1M if=/dev/mmcblk1p1|nc 192.168.7.1 19000 just make sure you applied an apt-get clean or reboot your target before execute the command (I got several errors when I tried to mounted) Once the data is being transfered, you just need to mount the image into your host: sudo mount -o loop name.img ~/path i.e sudo mount -o loop bbb-with-ssl-and-icu-dev.img ~/opt/mnt/rootfs/ and you can use as sysroot, You can read how other people did it on raspberry or beaglebone : https://wiki.qt.io/BeagleBone_Black_Beginners_Guide Raspberry is the most used board at this moment, so you will find a lot of info about how to use sync

@JagSingh said in QT or Andriod for embedded app: I would really appreciate any guidance please. I depends, do you have C++ knowledge? If you don't know anything about C++, using Qt can be difficult. If you are confident with Android/Java, go with Android, there are many Android images available for RPi. A quick search on internet gives me this link => https://www.makeuseof.com/tag/install-android-raspberry-pi/ By the way, you could also create an Android App with Qt ;)

@ununez I don't have experience with a BBB device myself, but given it has an OS (i.e. Debian Linux) and you're have to install Qt dependencies on it, I guess you'll be able to follow this guide (intended for RPi devices). In addition, some time ago somebody provided a PDF to this forum with detailed steps about cross-compiling Qt for Beablebone. You may want to search it just in case.

@KroMignon said in How to get an int value using QtAndroid::androidActivity().callObjectMethod?: @Nelson_Piquet said in How to get an int value using QtAndroid::androidActivity().callObjectMethod?: How can I collect an int or a jint using QtAndroid::androidActivity().callObjectMethod? To get int, you have to use callMethod(): int my_int = QtAndroid::androidActivity().callMethod<jint>("someMethod"); ==> take a look at documentation: QAndroidJniObject Class This fixes my problem!