App without head

Similar Questions

• App without head: how to check the status

  1. I read this on the BB site:

  Criticism	Process that must be running at all times (for example, system processes)
  In the foreground	Processes that are running in the foreground
  Background	Processes that run in the background
  Stop	Process involved in RAM without running

  The question is can we write the code to check the States of the app to trigger certain activities?

  I also want to know the other possible States of the life cycle such as: "application started", "closed app"...

  A problem critical of the app without head is memory management, and we can only until BB have a better explanation on the life cycle of the app without a head.

  2. for an application in the short-term, event after 20 years, the app is still listed on memory and CPU usage. That seems abnormal, because I guess that after 20 years, the application will be stopped and not be able to use the memory and CPU more.

  Can someone explain?

  Thank you very much!

  Would you like to take a look at this app, I wrote that has a component without head and uses QLocalSocket to communicate between the headless and the (https://github.com/blackberry/Cascades-Community-Samples/tree/master/wakemebybeacon) user interface process. There is also a blog explaining how it works here: http://devblog.blackberry.com/2014/07/wake-my-beacon/.

  You can detect changes in status of process on the part without head like this (https://github.com/blackberry/Cascades-Community-Samples/blob/master/wakemebybeacon/WakeMeByBeaconSe...) and manipulate them like this (https://github.com/blackberry/Cascades-Community-Samples/blob/master/wakemebybeacon/WakeMeByBeaconSe...).

  When a component without a head (process) is distributed will be passable for 20 seconds, after which it is moved to a queue where it receives no processor, but can be awakened (marked as executable) of certain classes of events. While stopped the headless process always retains a memory footprint, but is not available.

• Using C++ in QML classes in app without head: refers to 'bb::device:VibrationController:staticMetaObject' the undefined

  Hi, I've been weeks of work on the BB and had a lot of problems. Some of them have been resolved, some were not without the support of the forum.

  Now I have a great difficulty that I can't find answer by Googling.

  I am grateful to some body can help.

  Here's a simple case that make the big problem for me:

  1. create an app without head with Momentics. 2 project will be generated HeadlessApp and HeadlessAppService.

  Without modification, this code works well.

  2. I'm link below to use VibrationController in HeadlessAppService: https://developer.blackberry.com/native/documentation/dev/integrating_cpp_qml/index.html#usingcclass...

  below the code has been added:

  -Add codes below to main.cpp HeadlessAppService

  #include 
  using namespace bb::device;
  

  then add qmlRegisterType as below

  Q_DECL_EXPORT int main(int argc, char **argv)
  {
  
     Application app(argc, argv);
  
     qmlRegisterType("bb.vibrationController", 1, 0, "VibrationController");
     ApplicationUI appui;
     return Application::exec();
  }
  

  3. to confirm the new code, I just right click on the project and select build project.

  Bang! I got several error I don't understand. (red lines are errors)

  08:44:30 **** Incremental Build of configuration Device-Debug for project headlessTest ****
  make -j4 Device-Debug
  make -C .//translations -f Makefile update
  make[1]: Entering directory 'D:/BB-dev/momentics-workspace/headlessTest/translations'
  C:/bbndk/host_10_3_1_12/win32/x86/usr/bin/lupdate headlessTest.pro
  Updating 'headlessTest.ts'...
      Found 2 source text(s) (0 new and 2 already existing)
  make[1]: Leaving directory 'D:/BB-dev/momentics-workspace/headlessTest/translations'
  make -C .//translations -f Makefile release
  make[1]: Entering directory 'D:/BB-dev/momentics-workspace/headlessTest/translations'
  C:/bbndk/host_10_3_1_12/win32/x86/usr/bin/lrelease headlessTest.pro
  Updating 'D:/BB-dev/momentics-workspace/headlessTest/translations/headlessTest.qm'...
      Generated 0 translation(s) (0 finished and 0 unfinished)
      Ignored 2 untranslated source text(s)
  make[1]: Leaving directory 'D:/BB-dev/momentics-workspace/headlessTest/translations'
  make -C ./arm -f Makefile debug
  make[1]: Entering directory 'D:/BB-dev/momentics-workspace/headlessTest/arm'
  make -f Makefile.Debug
  make[2]: Entering directory 'D:/BB-dev/momentics-workspace/headlessTest/arm'
  qcc -Vgcc_ntoarmv7le -lang-c++ -Wl,-rpath-link,C:/bbndk/target_10_3_1_995/qnx6/armle-v7/lib -Wl,-rpath-link,C:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib -Wl,-rpath-link,C:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib/qt4/lib -Wl,-rpath-link,C:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib/qt4/lib -o o.le-v7-g/headlessTest o.le-v7-g/.obj/applicationui.o o.le-v7-g/.obj/main.o o.le-v7-g/.obj/moc_applicationui.o    -LC:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib/bb1 -LC:/bbndk/target_10_3_1_995/qnx6/armle-v7/lib -LC:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib -LC:/bbndk/target_10_3_1_995/qnx6/armle-v7/usr/lib/qt4/lib -LC:/bbndk/target_10_3_1_995/qnx6//usr/lib/qt4/lib -lbb -lbbsystem -lbbcascades -lQtDeclarative -lQtScript -lQtSvg -lQtSql -lsqlite3 -lz -lQtXmlPatterns -lQtGui -lQtNetwork -lsocket -lQtCore -lm -lbps
  o.le-v7-g/.obj/main.o: In function `int qmlRegisterType(char const*, int, int, char const*)':
  c:/bbndk/target_10_3_1_995/qnx6/usr/include/qt4/QtDeclarative/qdeclarative.h:191: undefined reference to `bb::device::VibrationController::staticMetaObject'
  o.le-v7-g/.obj/main.o: In function `QDeclarativeElement':
  c:/bbndk/target_10_3_1_995/qnx6/usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:87: undefined reference to `bb::device::VibrationController::VibrationController(QObject*)'
  o.le-v7-g/.obj/main.o:(.data.rel.ro._ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE[_ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE]+0x8): undefined reference to `bb::device::VibrationController::metaObject() const'
  o.le-v7-g/.obj/main.o:(.data.rel.ro._ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE[_ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE]+0xc): undefined reference to `bb::device::VibrationController::qt_metacast(char const*)'
  o.le-v7-g/.obj/main.o:(.data.rel.ro._ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE[_ZTVN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE]+0x10): undefined reference to `bb::device::VibrationController::qt_metacall(QMetaObject::Call, int, void**)'
  o.le-v7-g/.obj/main.o:(.data.rel.ro._ZTIN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE[_ZTIN19QDeclarativePrivate19QDeclarativeElementIN2bb6device19VibrationControllerEEE]+0x8): undefined reference to `typeinfo for bb::device::VibrationController'
  o.le-v7-g/.obj/main.o: In function `~QDeclarativeElement':
  c:/bbndk/target_10_3_1_995/qnx6/usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:91: undefined reference to `bb::device::VibrationController::~VibrationController()'
  c:/bbndk/target_10_3_1_995/qnx6/usr/include/qt4/QtDeclarative/qdeclarativeprivate.h:91: undefined reference to `bb::device::VibrationController::~VibrationController()'cc: C:/bbndk/host_10_3_1_12/win32/x86/usr/bin/ntoarm-ld caught signal 1
  Makefile.Debug:103: recipe for target 'o.le-v7-g/headlessTest' failed
  make[2]: *** [o.le-v7-g/headlessTest] Error 1make[2]: Leaving directory 'D:/BB-dev/momentics-workspace/headlessTest/arm'
  make[1]: *** [debug] Error 2
  Makefile:50: recipe for target 'debug' failed
  make: *** [Device-Debug] Error 2make[1]: Leaving directory 'D:/BB-dev/momentics-workspace/headlessTest/arm'
  mk/cs-base.mk:31: recipe for target 'Device-Debug' failed
  08:44:31 Build Finished (took 1s.47ms)
  

  I give up!

  Why adding simple code can be a problem? Please help me!

  Thank you very much!

  You must add this code into main.cpp to your HeadlessApp, not HeadlessAppService. Your spare part cannot run any UI stuff, trying to save an object any for QML is part of the things in the user interface.

  But anyway, reading your newspaper from the console, you seem to put in the right place anyway. Did you add this to your headlessTest.pro file:
  LIBS +=-lbbdevice

• Citing the part of the user interface of the game without head in an app without head

  Hello

  I try to call my interface section user app without head of service class (part long term without a head), as shown below:

  application of BB::System:InvokeRequest;

  request.setTarget ("com.myDomain.myAppName");

  request.setAction ("com.myDomain.myAppName.START");

  InvokeTargetReply * response = m_invokeManager-> invoke (request);

  {if (Reply)}

  QObject::connect (response, SIGNAL (finished (()), this, SLOT (onInvokeResult ()));

  _invokeTargetReply = response;

  }

  else {}

  qDebug()< "failed="" to="" start="" invocation:="">

  }

  the error response is always "not objective". I double checked that the id of the target is my id app (user interface section) and that it is registered as target to call in the xml file bar

  
  application
  myAppName
  
  Icon.PNG
  
  myAppName
  

  I don't know why he keeps giving me the error response target?

  Made a typo, the Notification and NotificationDialog are part of the bb: platform.

  Here are their respective documents:
  Notification https://developer.blackberry.com/native/reference/cascades/bb__platform__notification.html#function-...

  NotificationDialog https://developer.blackberry.com/native/reference/cascades/bb__platform__notificationdialog.html#fun...

• The App without head - account provider not found - release form is linked to the Blackberry ID

  Hello

  I tried to fill out the app without head permission to

  https://developer.BlackBerry.com/jam/headless/

  It gave me an error "not found the vendor account. Before, visit the provider Portal to create an account or link an existing account on the portal provider with this BlackBerry ID. »

  My account is already linked, and I am able to connect to the provider portal using my blackberry id.

  Please notify

  Worked ok now.

• Get a Push notification on app without head and application

  Hello

  I have included an app without a head for my current application, because I am handling becomes class PushService when push comes this application without a head. But I pushservice in running my application also to get called when comes to push, and my request for traffic not called when the push... How can I get push notifications in both without head and noraml app.

  You can take a look at the documentation
  https://developer.BlackBerry.com/native/documentation/Cascades/device_platform/headless_apps/

• Problem with app without head

  I have an app without very simple head with a spare part which can be summed up like this:

  int main()

  {

  While (true)

  {

  appendToLogFile();

  Sleep (5);

  }

  }

  He manages to write twice in the logfile on Simulator 10.3 after the system starts and then it dies (nothing is printed, process went from "pidin").

  Is there something I need to do to ensure that the system does not not kill us after a few seconds?

  I have the following 2 lines in bar - descriptor.xml:

  _sys_run_headless

  _sys_headless_nostop

  I can zip from the project and set up somewhere if anyone wants. It is based on the project template that Momentics puts apps headless.

  TIA.

  I did some experiments. It seems that headless apps work pretty much as advertised during the development of a device but not very well at all in the development on the Simulator.

  Use a device to develop applications without head, not the Simulator.

  Perhaps future simulators will correct the current problems.

• Problem with conversion of a normal app in app without head

  "I made an example of code where you respond to messages (email, PIN) without user intervention is possible." The application is started and when a new message is received it respond and delete the new message.

  I need the app to start as soon as the phone is started. This is why I want to convert an application without the app. But he is not able to link the API if I set them in the part without the app. The reason is that in the .pro file of the game without head cascades10 should be removed to make headless (it's just one of the requirements). I fully meet all other requirements too for example: no assets etc.

  CONFIG += qt warn_on (cascades10) deleted

  But I must add

  LIBS +=-lbbpim which gives following error.

  /usr/lib/libbbpim.so: reference to 'QSqlDatabase::rollback()' the undefined

  /usr/lib/libbbpim.so: reference to 'QDomDocument::~QDomDocument()' the undefined

  When I add cascades10 then it compiles, but now it does not entirely the requirements of the app without a head.

  If I set the code part user interface of the application without a head, then it can compile and I can run the application. But in this case when I re - turn the phone on or off the UI of the application does not work.

  I do not understand how to convert a normal app in app without a head. I have read the example and followed all the instructions.  http://developer.BlackBerry.com/native/documentation/Cascades/device_platform/headless_apps/

  But I need for email, PIM messages. "How can you do it?

  LIBS +=-lbb - lbbsystem - lbbplatform - lbbdata - lbbpim
  QT += declarative sql
  QT += xml

  He then satisfied and I can run too

• Trigger awakening for app without head

  Hello

  Is it possible to get headless app be triggered by the event of Awakening (of sleep state)? I want my app works only when I drag it to the top of the screen (action in the service of wake-up call)

  Thank you

  Headless triggers can be found here:
  https://developer.BlackBerry.com/native/documentation/device_platform/headless_apps/triggers.html

  For your usecase, there is, unfortunately, no trigger then you will need to use a long-term application and listen lockState property changes.
  https://developer.BlackBerry.com/native/reference/Cascades/bb__platform__homescreen.html#property-Lo...

• How to implement the service as thread know app without a head?

  I want to implement some service such as GPS log app, SMS Firewall. I want just an expert to give some guidance on how to design app without head and how to interact without head with front UI thread?

  There is a documentation for it: here.

  Examples of applications: Collector Push and part of Xandroid UI/Xandroid part Headless

  Personally, I could not work from collector to push but the Xandroid works according to others.

  I tried to do a UI + app: separation logic and tried invoking the logical part on the system started but could not make it work too.

  If your application without head needs long running and is not triggered, you must submit a form to the https://developer.blackberry.com/jam/headless/

  I really hope that internal developers to release a simple beginning on the kind of Hello world system early in the example, two examples of applications are too complicated and are trying to squeeze too many different features together

• Application crash without head

  I have a headless application that consists of a user interface that displays information and a background process that manages the communication networks and raise important data notifications should be retrieved as the user needs to know.

  Looks like what they describe the background process has ended, although I'm waiting to hear if this is indeed the case, and it is not just a bug in my code.

  As I need this service running at all times to manage the network connection is a way to define the process restarts on release without requiring the user interface to get involved or restart the phone?

  You can send a message to hub or NotificationDialog in your app without head destructive code, but chances are that if the app without head has stopped working, it is due to a failure and your Shredder could never be called.

  I know a dev that used a second application without head who would conduct sporadic inspections to see if headless app 1 is running and he would invoke if it no longer exists. This solution is not for everyone, the user will install 2 apps.

  Best solution is to check your code, try to catch the dump if possible user's telephone logs, there is probably an error somewhere that gives the crash without head or your application gets terminated by the operating system when it exceeds the limit of 3 MB heap (check for memory use).

• Sample of 10.2 app without missing head

  I'm in the progress of my application without a head, so I'm digging the pushCollector sample provided by BlackBerry at this link https://developer.blackberry.com/native/documentation/cascades/device_comm/push/developing_a_push_en...

  "To download our sample application, visit the waterfalls sample applications and find the app Collector push in the device section and Communication." The .zip file that you download contains two folders: 10.0 and 10.2.

  10.2 contains our example of application that runs on BlackBerry 10.2 headless. Our application shows you how to use an application without head to receive and process a push message. 10.2 file contains three projects. Projects are grouped in a single file .bar to collector demand push together. »

  However, the zip file I downloaded contains only the example 10.0 and is not updated with 10.2. If someone could fix that?

  Thank you

  just checked, it's on github now, see you soon.

• How to create a shared library of Qt and use it on App without a head?

  Hi all

  I'm experimenting with some waterfalls headless basic application development, and I just hit another problem of blocking.

  I want to create a Qt library with some shared code between the head and user interface elements.

  That's what I did:

  1. created a new application without head the wizard project
  2. created a new library shared by using the wizard project. Adds a simple C++ (Qt not) class
  3. Set up the two parts of the Headless App to use the shared library ("Library in the workspace project" option from the "Add library...) (' Assistant).   Everything compiles and works very well so far.
  4. Now, I want to use the shared library Qt. I choose 'Library of the Standard BlackBerry platform' and ' platform > Qt Core "from the «add library...» "Wizard. Now, I had this error on the shared library project: C:\dev\bbndk\host_10_2_0_15\win32\x86\usr\bin\ntoarm-ld: could not find lQtCore.

  How to create a shared library of Qt and use it on App without a head?

  In fact, I would also use other NDK libraries on library shared as lbbdata and libbbdevice.

  I expect that workers would deal with all the problems for me. As an improvement, I suggest you add the selection screen platform library of the Wizard "Add library...". «the wizard «Shared Library Project»

  There is a model of library project

  https://github.com/BlackBerry/Cascades-community-samples/tree/master/Cascades-library-template

  Unfortunately, the library create Assistant isn't really useful #t

  There is also a great series on using headless headless library and user interface:

  http://devBlog.BlackBerry.com/2014/02/a-flexible-architecture-for-enterprise-mobile-applications-par...

• WebWorks app with part without head

  I'm devolopping a webworks SDK-based application.

  I want to develop a plugin that communicate with a native service without a head.

  I used the sample of The Headless Service sample that shows how to create a long service life without a head.

  Also, I used the model of the creation of a plugin of cordova for communication between JavaScript and native part.

  2 samples of separately work fine, I have not found how to configure make them work together. I mean How to invoke the service without a head form Javascript side.

  As BlackBerry Webworks Extension Native and native headless service project have the same structure of project, I don't have how to configure my Webworks and my native project without head to communicate with each other.

  Help please?

  Hello

  WebWorks 2.1 has a «create headless» CLI command This operation generates a sample application in which the momentics project built directly in the project WebWorks. It illustrates invocation of WebWorks for headless.

  http://developer.BlackBerry.com/HTML5/documentation/v2_1/creating_a_ww_app_with_headless_app.html

• Left without head does not start from the phone.

  Hello

  I have a problem with the part without a head.

  When I try to launch the app to Eclips, the app will be charged for phone and rotate the UI and parts without a head.

  Now if I restart the phone, headless part does not start even when I open the UI part,

  The headless part is to call the block function.

  Any idea will be very appreciated!

  Thank you!

  Your HL will start automatically in these two scenarios:
  (1) the application is installed on the device (there is no front)
  (2) the phone is restarted-> which is the magical part where your file bar - descriptor.xml is to record your target without head to call when the OS up bb.action.system.STARTED action.

  If you want your HL to be launched at the start of the user interface, you must manually call.

  Look here for an example of coding:
  https://github.com/RodgerLeblanc/HeadlessLight/BLOB/master/HeadlessLight/src/applicationui.cpp#L34-L...