BB10: ActionItem same repeated in ActionBar

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  983902 wrote:
  I would like to generate a random number of 5 digits;

  Select round (dbms_random.value (10, 999990)) twice;

  On my laptop, I can call trunc (dbms_random.value (0,100000))-which allows a random number to range form 0 to 99 000 - 100 000 times per second. The probability of repetition in a second depends on the number of calls per second, but in my case that the worst cases are a value that appeared 8 times and 18 445 values appeared twice.

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• Vista update fixes same repeatedly since last week Idem 5 important patches total 62.9 MB

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• Double Actionbar button

  I have a weird problem with my app Blackberry Cascades. I tried to add a button to actionbar (at the bottom of the application). But when I test it in the Simulator Blackberry 10 Dev Alpha (BB10_0_10.261) it seems that I have 2 (or sometimes 3) versions of the same key, as shown in the image below. While normally, there should be only 1?

  

  So what I do is add a button on my page in QML as follows:

  NavigationPane {
      Page {
          Container {
              layout: StackLayout {
              }
              ListView {
                  ...
              }
          }
          actions: [
              ActionItem {
                  title: "New Event"
                  ActionBar.placement: ActionBarPlacement.OnBar // HERE
                  onTriggered: {
                      var page = newEventPage.createObject();
                      navigationPane.push(page);
                  }
                  attachedObjects: ComponentDefinition {
                      id: newEventPage
                      source: "addEvent.qml"
                  }
              }
          ]
      }
      onPopTransitionEnded: {
          page.destroy();
      }
  }
  

  This code is not much more to add a "New event" button that will connect to my "addEvent.qml".

  But if I remove (or comment out) the line ' Actionbar.placement: ActionBarPlacement.OnBar' (marked with "HERE" in the code above), I get only 1 button, as planned.» But this button is located in the overflow menu, while I want it on the ActionBar inside.

  All versions of the buttons do exactly the same thing (the behavior expected by the way: addEvent.qml of opening).

  What I've tried: "Clean...". ' and then 'rebuild '; It did not work. I also tried to move the table actions in other places, as I thought this might be the wrong place, but that did not help either. Removing the application on the Simulator and then put it back in place.

  I also tried on another computer and another Simulator, as I thought it might be my computer. But I had the same problem there.

  I don't know if this is a bug or not, but I guess I'm doing something wrong, since I don't have a lot of experience in the development of Cascades. I searched everywhere, but do not have someone else with the same problem. I have not tested on a real device, because I have not (yet) a device of BB10.

  StackOverflow link to this topic: http://stackoverflow.com/questions/14818434/duplicate-actionbar-buttons-in-blackberry-cascades

  All credit for this answer goes to graymatter for his help (http://supportforums.blackberry.com/t5/Cascades-Development/Duplicate-actionbar-buttons/m-p/2157001#...).

  But I can explain what I did to solve the problem. Apparently, the problem was that I used

  QML-> setContextProperty ("model", model);

  in my C++ code. And I thought that it made a huge difference, so I put this line behind the line

  AbstractPane * root = qml->() createRootObject;

  But apparently, it makes a difference, because then you will receive your double buttons.

  So to solve the problem, simply move setContextProperty lines before the line createRootObject and everything is resolved.

  And the problem I had with 3 buttons, seems to be that I had 2 setContextProperty lines of code behind the createRootObject line. So for each row of setContextProperty, buttons have been duplicated.

  Anyone know why this strange thing that happens, feel free to mention it.

  And to answer the question of BGmot the journal of slog2info gave no information on this issue.

• ActionBar.placement changes create duplicates

  I want to create functionality that my app is purchased the action point happen OT InOverflow OnBar however the following code creates doublonnait followed when it changes.  Any suggestions how to get around this problem?

  {ActionItem}
  Title: qsTr ("Options")
  ActionBar.placement: _tiledApp.purchased! 'Bought = '? ActionBarPlacement.OnBar: ActionBarPlacement.InOverflow
  onTriggered: {}
  If (_tiledApp.purchased == 'Bought') {}
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  }
  }
  attachedObjects:]
  {SystemToast}
  ID: optionsToast
  body: 'Premium Version required.
  }
  ]
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  I'll post this as a bug - leaving however the actionitem in place and simply change the title, image and function is a workaround that works - as long as you are swapping onBar and inOverflow.

• Shared files

  Development for BB10

  I need to have an actionItem that selected once goes to an example of a shared file directory: "file://accounts/1000//shared/music/" or "file://accounts/1000//shared/documents".

  QML I have something like this

  {ActionItem}
  Title: 'music '.
  ActionBar.placement: ActionBarPlacement.InOverflow
  onTriggered: {}

  What should I do here?
  }

  And I have CPP:

  QString workingDir is QDir::currentPath();.

  QDeclarativePropertyMap * dirPaths = new QDeclarativePropertyMap;
  dirPaths-> insert ('music', QVariant (QString ("file://" + workingDir + "/ shared/music /")));
  QML-> setContextProperty ("dirPaths", dirPaths);

  How can I make this point QML action open the path for this URI?

  TKS in advance

  Not sure I get what you want...

  Do you want a FilePicker to open when the user click on your ActionItem? Then, attach a FilePicker to your ActionItem and call filePickerName.open)
  https://developer.BlackBerry.com/native/reference/Cascades/bb__cascades__pickers__filepicker.html
  Use the "directories" property if you want the FilePicker to open it in a specific directory, like this:
  directories: [' / accounts/1000/shared/music "]

  Do you want a specific file (file of music as your ActionItem name suggests) to play when user click on your ActionItem? Then, attach a MediaPlayer to your ActionItem and call mediaPlayerName.play)
  https://developer.BlackBerry.com/native/reference/Cascades/bb__multimedia__mediaplayer.html

• Strange behavior in QML

  I have a strange problem with a QML file. My first level NavigationPane has an attached SystemDialog:

  attachedObjects: [
      SystemDialog {
          id: confirmCancelDialog
          title: qsTr("Confirm")
          body: qsTr("There are unsaved changes.")
          confirmButton.label: qsTr("Discard and Close")
          cancelButton.label: qsTr("Abort... Don't Close")
          customButton.label: qsTr("Save... Then Close")
      }
  ]
  

  The Page just under the NavigationPane has an action of "Cancel". This code works fine:

  ActionItem {
      title: qsTr("Cancel")
      ActionBar.placement: ActionBarPlacement.OnBar
      imageSource: "asset:///images/ic_cancel.png"
      onTriggered: {
          var result;
          if (settingsNavPane.dirty) {
              confirmCancelDialog.exec()
              result = confirmCancelDialog.result
          } else {
              result = 2;
          }
          if (result == 2) {
              // ---Force FeedDetailsEdit page to reload values next time
              feedDetailsEdit.feedEdit = null;
              scrollView.scrollToPoint(0, 0);
              parentSheet.close();
          } else if (result == 6) {
              // ---Save then close
              saveAndClose();
          }
      }
  }
  

  Even if I use two statements if() here to test if the 'result' is 2 or 6, my usual practice would be to use one instead:

  ActionItem {
      title: qsTr("Cancel")
      ActionBar.placement: ActionBarPlacement.OnBar
      imageSource: "asset:///images/ic_cancel.png"
      onTriggered: {
          var result;
          if (settingsNavPane.dirty) {
              confirmCancelDialog.exec()
              result = confirmCancelDialog.result
          } else {
              result = 2;
          }
          switch(result)
          {
              case 2:
                  // ---Force FeedDetailsEdit page to reload values next time
                  feedDetailsEdit.feedEdit = null;
                  scrollView.scrollToPoint(0, 0);
                  parentSheet.close();
                  break;
              case 6:
                  // ---Save then close
                  saveAndClose();
                  break;
          }
      }
  }
  

  .. .but it does not work. When result == 2 switch correctly gives control to the "box 2: ' block, but the 'feedDetailsEdit.feedEdit = null;' statement never returns, and the rest of the cases never block runs, so does not close the page. Normally when I encounter a statement that behaves in this way, it is because there is a syntax error that is not taken at the time of the design, as an unitialized variable or object, for example, but in this case the exact same block of code works fine when in an if-else block, but not in a switch case block.

  The code also works very well if I'm hard on the conditions surrounding the fault block completely:

  ActionItem {
      title: qsTr("Cancel")
      ActionBar.placement: ActionBarPlacement.OnBar
      imageSource: "asset:///images/ic_cancel.png"
      onTriggered: {
          var result;
          if (settingsNavPane.dirty) {
              confirmCancelDialog.exec()
              result = confirmCancelDialog.result
          } else {
              result = 2;
          }
          // ---Force FeedDetailsEdit page to reload values next time
          feedDetailsEdit.feedEdit = null;
          scrollView.scrollToPoint(0, 0);
          parentSheet.close();
      }
  }
  

  25 years of professional business development experience with many languages such as C/C++ and JavaScript, but this one I left me speechless. Why the variation that does not work?

  Maybe it's this bug in Qt, which cannot have been fixed yet? https://bugreports.Qt-project.org/browse/QTBUG-17012

  (If this is the case, apparently adding braces around the code in each case individual would work around the issue. Maybe try it.)

• Problem with the action menu

  This is my code, I just set one action point, but it shows two point follow up with the same name and the same behavior.

  actions:]
  {ActionItem}
  Title: 'about '.
  ActionBar.placement: ActionBarPlacement.OnBar
  onTriggered: {}
  aboutSheet.open ();
  }
  }
  ]

  This problem is solved. I put this code in the wrong place

  QML-> setContextProperty ("_app", this);

• Cannot invoke the picture editor

  I'm calling the standard image editor, but but failed. I use 10.3.2 API and testing my application on the Simulator.

  Here is my code:

  Inside the .pro file, I added libs:

  LIBS += -lbbsystem
  

  Inside the .bar file, I added the following permissions:

  access_shared
  

  hand. QML:

  import bb.cascades 1.4
  import bb.cascades.pickers 1.0
  import bb.system 1.2
  
  Page {
      ImageView {
          id: imageView
          scalingMethod: ScalingMethod.AspectFill
      }
  
      attachedObjects: [
          FilePicker {
              id: filePicker
              type: FileType.Picture
  
              onFileSelected: {
                  invocation.query.uri = "file://" + selectedFiles[0];
                  invocation.trigger("bb.action.EDIT");
              }
          },
  
          Invocation {
              id: invocation
  
              query {
                  invokeTargetId: "sys.pictureeditor.cardeditor"
  
              }
          }
      ]
  
      actions: [
          ActionItem {
              title: "Select Picture"
              ActionBar.placement: ActionBarPlacement.OnBar
  
              onTriggered: {
                  filePicker.open();
              }
          }
      ]
  }
  

  Debug gives me the next exit to start the application:

  InvocationWrapper::onQueryFinished: menu service population failed
    query mimeType=""
    query uri=""
    query data=""
    query metadata=QMap()
    query action= ""
    query target= "sys.pictureeditor.cardeditor"
    query perimeter= 0
  InvocationPrivate::onQueryResolved: query failed, no armed signal sent.
  

  What's wrong?

  After some tests, I can confirm that this call does not work in QML, it will work only in C++.

  Here is a code snippet

  applicationui.cpp

  void ApplicationUI::invoke(const QString& targetId, const QString& actionId, const QString& mimeType, const QString& uri, const QString& data) {
      qDebug() << "Invoke:" << targetId << actionId << mimeType << uri << data;
  
      InvokeRequest request;
      request.setTarget(targetId);
      request.setAction(actionId);
      request.setMimeType(mimeType);
      request.setUri(uri);
      request.setData(data.toAscii());
  
      // Start the invocation
      InvokeManager* invokeManager = new InvokeManager(this);
      invokeManager->invoke(request);
  }
  

  hand. QML

  onFileSelected: {
      _app.invoke("sys.pictureeditor.cardeditor", "bb.action.EDIT", "", "file://" + selectedFiles[0], "")
  }
  

• MapView does not show pines

  I experience MapView and I need help with it. I use 10.3.2 API and testing my application on the Simulator.

  Here is my code:

  MyMapData.h:

  #ifndef MYMAPDATA_H
  #define MYMAPDATA_H
  
  #include 
  
  #include 
  
  using namespace bb::cascades::maps;
  
  // MyMapData
  class MyMapData
      : public MapData
  {
      Q_OBJECT
  
  public:
      explicit MyMapData(QObject *parent = NULL);
      virtual ~MyMapData() {}
  
  public slots:
      void addGeoLocation(const int latitude, const int longitude);
  };
  
  #endif // MYMAPDATA_H
  

  MyMapData.cpp:

  #include 
  #include 
  
  #include 
  
  #include "MyMapData.h"
  
  using namespace bb::platform::geo;
  
  // MyMapData
  
  MyMapData::MyMapData(QObject *parent)
      : MapData(parent)
  {
      add(new GeoDeviceLocation());
  }
  
  void MyMapData::addGeoLocation(const int latitude, const int longitude)
  {
      add(new GeoLocation(latitude, longitude));
  
      qDebug() << "------------>" << count(true);
  }
  

  Inside of main.cpp I register class MyMapData:

  qmlRegisterType("bb.cascades", 1, 4, "MyMapData");
  

  Inside the .pro file, I added libs:

  LIBS += -lbb -lbbplatform -lQtLocationSubset -lbbcascadesmaps -lGLESv1_CM
  

  Inside the .bar file, I added the following permissions:

  access_location_services
  access_internet
  

  hand. QML:

  import bb.cascades 1.4
  import bb.cascades.maps 1.4
  
  Page {
      MapView {
          id: mapView
          latitude: 52.5
          longitude: -98.75
  
          mapData: MyMapData {
              id: mapData
          }
      }
  
      actions: [
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              title: "Drop Pin"
              ActionBar.placement: ActionBarPlacement.OnBar
  
              onTriggered: {
                  mapData.addGeoLocation(mapView.latitude, mapView.longitude);
              }
          }
      ]
  }
  

  When I click on Add Pin, no pins on MapView are displayed, but debug of MyMapData :: addGetLocation me, shows that the pine has been added.
  What's wrong?

  My code works well, just zoom out

• FilePicker on attachedObjects does not work?

  This is the simple app I'm working on that

  

  I want after a click in the action Go, a FilePicker bar will be shown, so I put the FilePicker on attachedObjects like this:

  // main.qml
  
  import bb.cascades 1.0
  
  NavigationPane {
      id: navigationPane
      backButtonsVisible: false
  
      // Create the initial screen
      Page {
          titleBar: TitleBar {
              title: qsTr("ExiView")
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          content: Container {
  
              TextArea {
                  id: lbl
                  editable: false
                  text: "Browse for an image, and ExiView will display its EXIF information for you."
                  textStyle {
                      color: Color.Black
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              }
  
              // The file picker view mode selector
              DropDown {
                  id: pickerViewMode
  
                  horizontalAlignment: HorizontalAlignment.Center
  
                  title: qsTr("View Mode")
  
                  Option {
                      text: qsTr("Default")
                      value: FilePickerViewMode.Default
                      selected: true
                  }
  
                  Option {
                      text: qsTr("List View")
                      value: FilePickerViewMode.ListView
                  }
  
                  Option {
                      text: qsTr("Grid View")
                      value: FilePickerViewMode.GridView
                  }
              }
  
              // The file picker sort criterion selector
              DropDown {
                  id: pickerSortBy
  
                  horizontalAlignment: HorizontalAlignment.Center
  
                  title: qsTr("Sort by")
  
                  Option {
                      text: qsTr("Default")
                      value: FilePickerSortFlag.Default
                      selected: true
                  }
  
                  Option {
                      text: qsTr("Name")
                      value: FilePickerSortFlag.Name
                  }
  
                  Option {
                      text: qsTr("Date")
                      value: FilePickerSortFlag.Date
                  }
  
                  Option {
                      text: qsTr("Suffix")
                      value: FilePickerSortFlag.Suffix
                  }
  
                  Option {
                      text: qsTr("Size")
                      value: FilePickerSortFlag.Size
                  }
              }
  
              // The file picker sort order selector
              DropDown {
                  id: pickerSortOrder
  
                  horizontalAlignment: HorizontalAlignment.Center
  
                  title: qsTr("Sort order")
  
                  Option {
                      text: qsTr("Default")
                      value: FilePickerSortOrder.Default
                      selected: true
                  }
  
                  Option {
                      text: qsTr("Ascending")
                      value: FilePickerSortOrder.Ascending
                  }
  
                  Option {
                      text: qsTr("Descending")
                      value: FilePickerSortOrder.Descending
                  }
              }
          }
  
          actions: [
              // Create the "Push" action
              ActionItem {
                  title: "Go!"
                  ActionBar.placement: ActionBarPlacement.OnBar
  
                  // When this action is selected, create an object that's based
                  // on the ComponentDefinition below, and then push it on to
                  // the stack to display it
                  onTriggered: {
                      var newPage = detailsPage.createObject();
                      navigationPane.push(newPage);
                    // picker.open()
                  }
              }
          ]
  
          attachedObjects: [
  
              FilePicker {
                  id: picker
  
                  property string selectedFile
  
                  title: qsTr("Select image")
                  mode: pickerMode.selectedValue
                  type: FileType.Picture
                  viewMode: pickerViewMode.selectedValue
                  sortBy: pickerSortBy.selectedValue
                  sortOrder: pickerSortOrder.selectedValue
  
                  onFileSelected: {
                    //  selectedFile = selectedFiles[0]
                  }
              },
  
              ComponentDefinition {
                  id: detailsPage
                  source: "DetailsPage.qml"
              }
  
          ]
      } // end of Page
  }// end of NavigationPane
  

  It will not work. So where should I put the FilePicker?

  Hey anta40,

  Have you registered the Filepicker in main.cpp file?

  #include 
  
  // Register Filepicker
      qmlRegisterType("CustomComponent", 1, 0,"FilePicker");
  

  You will also need to include in the qml file

  import bb.cascades.pickers 1.0
  

  And in the .pro file

  LIBS   += -lbbcascadespickers
  

  Another thing, your withdrawal difficulty.

• HELP the multiple ContactPicker in QML

  I have this code

  ActionItem
              {
                  title: "Invite Contacts"
                  ActionBar.placement: ActionBarPlacement.OnBar
                  imageSource: "asset:///images/titleAddFriend.png"
                  onTriggered:
                  {
                      contactPicker.open();
                  }
  
                  attachedObjects: ContactPicker
                  {
                      id: contactPicker
                      mode: ContactSelectionMode.Multiple
                      onContactsSelected:
                      {
                          for(var i = 0; i < selectedContactsIds.length; i++)
                          {
                              var phoneNumber = _app.getContactPhoneNumber(selectedContactsIds[i]);
                              console.log("PHONE: " + phoneNumber);
                          }
                      }
                  }
              }
  

  but does simply not multiple selector. It still operates as the single contact selector by default. I added a qml register type in main.cpp and libraries are also imported. any suggestions please? This problem is also present although 10.1 and OS 10.2.1 tried.

  I thought about it... its another case of QML it can not handle.  After testing your code, I noticed this error

  file:///apps/com.example.dynamicattach.testDev_namicattach58cf113_/native/assets//main.qml:51: ReferenceError: Can't find variable: ContactSelectionMode
  

  So I tried to import ContactSelectionMode qml as the selector is with no success.

  So, I stuck with c ++ for the switch and got the results of work

  The solution

  applicationUI.cpp

  #include 
  #include 
  

  void ApplicationUI::contacts()
  {
        ContactPicker *contactPicker = new ContactPicker();
        contactPicker->setMode(ContactSelectionMode::Multiple);
        contactPicker->setKindFilters(QSet()
             << bb::pim::contacts::AttributeKind::Phone);
  
        bool success = QObject::connect(contactPicker,
               SIGNAL(contactsSelected(QList)),
               this,
               SLOT(onContactsSelected(QList)));
  
        if (success) { // Signal was successfully connected.
              contactPicker->open();
            } else { // Failed to connect to signal.
              qDebug() << "Didn't connect the picker signal";
            }
  }
  
  void ApplicationUI::onContactsSelected(const QList &contactIds) {
  
      qDebug() << "contacts" << contactIds;
  }
  

  applicationUI.hpp

  public:
      ApplicationUI(bb::cascades::Application *app);
      virtual ~ApplicationUI() { }
  
      Q_INVOKABLE void contacts();
  
  public slots:
      void onContactsSelected(const QList &contactIds);
  

  . QML

  Button {
                  id: contact
                  text: "Pick Contact"
                  onClicked: {
                      cpp.contacts();
                  }
  
              }
  

  Now, given that the function is entirely in c ++, you should be able to take your code to

  _app.getContactPhoneNumber(selectedContactsIds[i]);
  

  and just insert into onContactsSelected to get your phone numbers

  I hope that helps!  Now I know how to do it too =)

  P. S.

  If you are still having a problem where something must certainly work and it is not, it is very likely that you will succeed if you just pass it to the c code ++ like theres probably a problem with the QML support.

• In any case to have an onLoad function in qml appending NavigationPane?

  I'm new to Blackberry 10 dev. So I was wondering what is the best way to do that I get no clear answer dev documentation.

  What I want is to start a separate view in my application from a navigation screen. The new page will then create an http request and update the UI based on the output.

  The best way seems to use the NavigationPane and add view qml. But how do I invoke a C++ function when placed on the stack? Something similar to android onActivityCreated() in Fragments. There are the docs for example Http, but the program started the HTTP from the legacy of the QObject constructor. How I have a function that is executed as the new qml is added to the navigation as a stack

   // navigationpane.qml
  
  NavigationPane {
      id: navigationPane
      Page {
          Container {
              Label {
                  text: "First page"
              }
          }
  
          actions: [
              ActionItem {
                  title: "Next page"
                  ActionBar.placement: ActionBarPlacement.OnBar
                  onTriggered: {
                      var page = pageDefinition.createObject();
                      navigationPane.push(page);
                  }
  
                  attachedObjects: ComponentDefinition {
                      id: pageDefinition;
                      source: "secondpage.qml"
                  }
              }
          ]
      }
      onPopTransitionEnded: { page.destroy(); }
  }
  

  Most of the QML objects have a creationCompleted signal, so you can set an onCreationCompleted: {...} to do what I think that you ask for.

  Note that it runs only when the thing is first created, well... If you reuse (hide but not destroy it, and the later make visible again) you'll need something else. Some components have relevant signals for this (for example onOpened, I think, for dialogue) but for others, you need make your own signal (which is trivial to do well).

• Programming list scrolling does not

  For some very odd reason, I am unable to programmaticaly scroll my list. With the exception of the simple scroll() method which takes an offset of pixels, no other methods of scrolling the no matter what.

  In addition, ScrollPosition and ScrollAnimation who hold constants, are apparently not available for my use. When I ctrl + space to see tips, suggestions are only ScrollMode and ScrollIndicatorMode.

  http://developer.BlackBerry.com/Cascades/reference/bb__cascades__scrollposition.html

  ActionItem {
                          title: "To Top"
                          ActionBar.placement: ActionBarPlacement.InOverflow
                          imageSource: "asset:///images/ic_to_top.png"
                          onTriggered: {
                              messagesList.scrollToItem(1);
                          }
                      },
                      ActionItem {
                          title: "To Bottom"
                          ActionBar.placement: ActionBarPlacement.InOverflow
                          imageSource: "asset:///images/ic_to_bottom.png"
                          onTriggered: {
                              messagesList.scrollToItem(messagesList.dataModel.childCount());
                          }
                      },
  

  Given that I could not access to the constants for the scrollToPosition() method, I tried to use the scrollToItem() that scrolls to a supplied index number. It does absolutely nothing.

  Please, any help suggestions is welcome and appreciated.

  Thank you!

  Hello
  scrollToItem expects a row which is a table consisting of section number JavaScript and article. The indexes are zero-based. Try:

  messagesList.scrollToItem([1]) / / second item
  or
  messagesList.scrollToItem ([0, 1]); first section, second item
  I'm not sure that it will work.

  childCount returns a number of child elements in the section and uses an argument. For ArrayDataModel or GroupDataModel use the size() function. Valid range of items is 0.size () - 1.