Way idiomatic for the item displayed in the ListView

I have a ListView with a StackListLayout and SnapMode.LeadingEdge. ListItemComponent fill ListView together, so there is only one display item at a time (except animations).

What is the idiomatic way to get the row of the displayed item?

Recent firstVisibleItem property SDK version appears in ListScrollStateHandler. I didn't want to use it again. There is also firstVisibleItemChanged signal:

https://developer.BlackBerry.com/Cascades/reference/bb__cascades__listscrollstatehandler.html#firstv...

What I currently use for similar task is engaging LayoutUpdateHandlers to all items in the list and follow their updates to determine which element is the most visible. But the elements to stop sending updates when you go off the screen. I also had to use a timer to stop monitoring of off-field elements. If the first approach does not work I can give more details on this one.

Tags: BlackBerry Developers

Similar Questions

  • Hi, I need to remove the white background in a file HAVE and the usual way (except for the web/PNG) does not work. I'm on the latest version of AI. Thanks in advance

    A

    FINAL box coverV4.pngAttached is my file

    Thanks to you all. My designer solved the problem. The image was white in the file that made it impossible to make it transparent.

  • API for open action for the listview element menu.

    Hello!

    Is there an API to open the action menu with elements of action for CustomListItem?

    A possible solution is to create a custom menu like ActionMenu standard with managers and signals defined by the user.

    Anybody know standard way?

    There is no way to open ContectMenu programmatically, but one of the solutions to use the selection of the element (with listview onTriggered slot) and ActionMenu.

  • Adding a custom 404 error page for the specific deployment folder

    Hi all

    I've created a deployment that I will use htm/pdf files static analysis on OBIEE.

    The link to these files are generated dynamically which works well, but unfortunately, means that it displays a link to a file that doesn't exist may not.

    I am looking for a way to manage it in the most user-friendly way. For the moment, it shows the very trivial/useless error of:


    Error 404 - not found

    Of RFC 2068 Hypertext Transfer Protocol - HTTP/1.1:

    Is it possible to add a custom 404 error page that applies only for searches in this deployment?

    Thanks heaps

    Adam

    It's a thing of weblogic, so in your deployment, I guess you can add info on the custom 404 in the files in WEB - INF of your deployment (have a loook at pages to customize error in Weblogic if that's what you're looking for or just google about 404 custom in weblogic).

  • 5 installation of Lightroom for the first time. Chose from the standard previews of the 100,000 + photos on removable hard drive. Lightroom has stopped creating previews after the first photos of 10,000 or more. Do not see how to start, he goes forward ag

    I think I did everything correctly. Moved the images to the external drive according to the instructions provided by Microsoft for Windows 8. Everything worked well. Everything else in Lightroom seems to work very well. However, he stopped just create previews of standard size.

    The little message stopped dirty left to proceed with the number of cases handled for standard previews. This message has completely disappeared. But now, a few days later, files open quickly to display full screen. I guess that Lightroom quietly kept their background processing. How will I know if a photo has a standard preview? It should open full screen in a Flash? Is there metadata to show the size of the preview. How can I be sure.

    By the way, thanks for the input to this beginner.

    Nick

  • How to change the layout of the listview in javascript?

    I need show listview two different data schemas.

    can I change the listview.layout of js?

    my code is like this:

    {Page 1

    function aaa (type) {}

    if(type=="List")

    listschema = StackListLayout (); new StackListLayout();

    on the other

    listschema = new GridListLayout();

    listschema.cellAspectRatio = 3 / 4;

    listschema.horizontalCellSpacing = 5;
    listschema.verticalCellSpacing = 5;
    listschema.columnCount = 2;

    }

    {page 2

    property alias listschema lista.layout

    ....

    ListView {...}

    ....

    }

    Thank you...

    Hello

    You can set the layout for the listview dynamically from javascript by doing like this.

    Page {
        Container {
            ListView {
                id: listview
                dataModel: GroupDataModel {
                    grouping: ItemGrouping.None
                }
                /*layout: StackListLayout {
                    orientation: LayoutOrientation.LeftToRight
                }*/
                listItemComponents: [
                    ListItemComponent {
                        type: "item"
                        Container {
                            id: cont
                            preferredWidth: 500
                            preferredHeight: 100
                            background: Color.Gray
                            Label {
                                text: ListItemData.title
                            }
                            Label {
                                text: ListItemData.description
                            }
                        }
                    }
                ]
                onTriggered: {
                    console.debug("listview triggered");
                }
                onCreationCompleted: {
    
                    listview.layout = layout
                }
            }
    
        }
        attachedObjects: [
            /*StackListLayout {
                id:layout
                orientation: LayoutOrientation.LeftToRight
            }*/
            GridListLayout {
                id: layout
                columnCount: 2
            }
        ]
    }
    

    Kind regards

    Naresh Kodumuri.

  • Is there a way to display text labels for the toolbar icons?

    Doesn't seem to be a way to display text labels in firefox 29.0.1. I get bored really what he does so much easier for me. Is it possible to recover?

    You are welcome.

    Yes, the classic theme restaurant is safe to use. Version 1.1.8 is completely overhauled, and there are currently more than 156000 users.

    In the FAQ of modules:

    Are safe modules to install?

    Unless it is clearly indicated otherwise, Add - ons available in this gallery have been checked and approved by the team of editors and are safe for the installation of Mozilla. We recommend that you install only approved modules. If you want to install untrusted modules or add-ons from third-party sites, be careful because these add-ons can damage your computer or violate your privacy. Learn more about our approval process

  • Is there an easy way to create "the mouse on the text, to display the image" without coding it? I want an image to appear only when you move to a line of text. I found the code for it but I want to find an easier way. Thank you!

    Is there an easy way to create "the mouse on the text, to display the image" without coding it? I want an image to appear only when you move to a line of text. I found the code for it but I want to find an easier way. I'm creating a home page with a list of text links. I want to design as well as in the overview of one of the text links, a corresponding image is displayed to the right of the page. I also need a default image to rest all the time unless one of the other links text is hovered over. Thank you!

    Try to use a Widget for Composition in the Adobe Muse Widgets Panel.

    I would like to start with a blank publication.

    Place your text in the button area.

    Place your image in the display area.

  • I want to add content that changes in a civil way, such as 'thought for the day'. It can then display another text or an image on a proposed agenda. Is this possible? Robert.

    I want to add content that changes in a civil way, such as 'thought for the day'. It can then display another text or an image on a proposed agenda. Is this possible? Robert.

    Hello

    If you have the code incorporated with you, then you can insert it in the Muse.

    You just need to go to the page creation and go mode to "object > insert HTML code ', paste the embed code, and click OK.

    Place the output area according to the requirement of you.

    Concerning

    Vivek

  • Developer of forms 4.5 - bring item displayed in the front when running

    I have 10 items displayed square lined with 2 x 5 to represent a form of rectangle on my form. Individual display elements represent 10 posts on a pallet. Other display items are then used to represent an item it takes placed on a position on a pallet, so affectivly your dragging a point display ontop of another element of the screen.

    My problem: it allows you to drag the item on it but it will not allow you do the reverse. Even if it looks like your selection of the top which is under discussion, forms think your draggin the square behind him? How can I change the focus of the display elements when running?

    I hope that your PC does not fail. You might have trouble to install forms 4.5 on Windows 7 or 8 platforms.

    If I remember correctly, the only way to really check that an item displayed at the top of all the others is to put it on his own Web stacked with the same dimensions as the element. You can move the canvas integer autour rather than on the question, and if the focus is ON the element (by using go_item, for example), while the point will be on top of all the others.

    As soon as another element receives focus which is located behind the canvas, the canvas will disappear.

  • best practices for the storage of the price of an item in the database?

    In the United Kingdom, we call the sales tax, VAT, which is currently 17.5%

    I store the price exclusive of VAT in the database

    Keep the current VAT rate for the United Kingdom as an application variable (VAT rate is fixed change here to the United Kingdom in January)

    Whenever the site displays the price of an item (including VAT), it takes the price exclusive of VAT and adds the VAT dynamically.

    I have a section in the website called "Personal Shopper" which fortunately will search the goods in a fixed priced at range, for example. a link is less than £20, another is £20 and £ 50

    This means that my search query to perform the calculation of VAT for each item. Is this normal, or is it better to have a database column that stores the prices including VAT?

    I'm also based in the United Kingdom, and that's what we do:

    In our table of products, we record a product price without VAT and an ID of VAT rates, which is attached to the wide at a rate of VAT table. So to calculate the retail price Yes, this is done at the SQL level when querying historical data. To save the net, VAT and gross would be to effectively reproduce the data is so evil. It also means that come January just to update one row in a table and the whole site is fixed.

    However.

    When a person places an order, store us the product id, amount net, tax code, VAT and VAT percentage. This way there is never any question to the evolution of the tax codes in your VAT codes table, because that will affect only direct price being listed on your website. For still more whenever pulling old order data, you have the net amount, VAT percentage of amount and VAT all coded hard in your command line to avoid confusion.

    I saw a LOT of books get confused after that a change of VAT where it recalculates in certain places on a data in real time and other command displays stored data, and there were differences.

    I saw a lot of people have problems with the tax changes before, and database space is so cheap I he stock always just against an order as a point-in-time snapshot.

    O.

  • How to recover the large number of columns for all items at once

    I have a table (T1) with a large number of columns (50). I am building a page on which I would like to consolidate these columns in some regions:

    Region: has
    Items i1 - i10

    Region: B
    I11 - i20 items

    Region: C
    I21 elements - i30

    Etc.

    The majority of the articles on this page are extracted from the same table (T1). So far, the type of each source element has the value SQL query and each item has the motion of the source is defined as:

    SELECT column1 FROM t1 WHERE t1id =: global_item

    What is the best practical approach to retrieve values for all items on this page? Is there a way to retrieve all the columns point at the same time, something like:

    SELECT column1, Column2, Column3, column50 FROM t1 WHERE t1id is: global_item

    Instead of:

    I1 point source:
    SELECT column1 FROM t1 WHERE t1id =: global_item

    Point source i2:
    SELECT Column2 FROM t1 WHERE t1id =: global_item

    Point i3 source:
    Column3 SELECT FROM t1 WHERE t1id =: global_item

    Item i50 source:
    SELECT column50 FROM t1 WHERE t1id =: global_item

    For each item on this page, when they are displayed?

    Thank you for your time.

    Daniel

    Set the source of static assignment type item and delete individual values of source of SQL query. Create a process before the header PL/SQL along the lines of

    begin
    
      select
                column1
              , column2
              , column3
                ...
              , column50
      into
                :i1
              , :i2
              , :i3
                ...
              , :i50
      from
                t1
      where
                t1id = :global_item;
    
    end;
    

    OR

    Create an automated process line go through the wizard for the table T1, then set the Source Type of the database column and the source values for each item in the name of the corresponding column in the T1.

  • Set the font size for the menu items and content of the label tab?

    Old eyes, small fonts.

    I can manage the fonts/zoom for the content of the site. SITE OF FONTS ARE NOT THE PROBLEM.

    Y at - there a way to set the font of the browser settings in: config to control the fonts in the BROWSER MENU ITEMS (view file Edition... etc) and TAB TITLE (TEXT) CONTENT?

    PS - Keep us ordinary mat canned. A simple 'no' or 'Yes' with simple details of relevant about: config entries, would be nice. GREAT access to the most COMPREHENSIVE list possible would be on: configuration settings

    You keep it as the 'EASY' button, I take it? Ever have something like this for Thunderbird, now I feel a little stupid for not connecting the dots. Thank you.

    PS - just in case... Got a list of about: config options?

  • Who should I send the photo to Clipboard to my problem? This is the only way to explain the problem that I had for a long time, not only the latest version

    Can I have an e-mail address to send a JPEG of the problem? I have found nothing to resolve this matter and wishes to show to someone, doesn't seem to be a way to explain it. Thank you

    Try turning off hardware acceleration.

    • Tools > Options > advanced > General > Browsing: "use hardware acceleration when available.

    If disable hardware acceleration works then check if there is an update available for your graphics display driver.

    Try disabling the transparency of the windows.

    See [804050/questions/804050]

    Right-click in the free space on your desktop.

    Left click on personalization.

    There are four options at the bottom of the screen, select 'window color and appearance '.

    Select a border color

    Uncheck the box: "enable transparency".

  • I can't find a way to sort the records themselves in alphabetical order by name. I speak not in a display mode, but in how they appear when I click on the tab my favorites. Can someone explain to me how to do this.

    I have a lot of issues of brand book with websites contained in each folder. I'm able to sort sites within each folder alphabetically by name, but I can't find a way to sort the records themselves in alphabetical order by name. I speak not in a display mode, but in how they appear when I click on the tab my favorites. Can someone explain to me how to do other than manually by dragging because it is extremely difficult for me, due to the fact that I am with limited movement tetraplegic hand dexterity

    Folders of bookmarks you created are in the folder Menu bookmarks. "Sort" this folder.

    http://KB.mozillazine.org/Sorting_bookmarks_alphabetically

Maybe you are looking for

  • OfficeJet Pro 8600 and OS Mavericks

    Every since the loading of the Mavericks on my Mac, I can't scan life airprint.  I can print, but he fails to make an analysis of the preview when I ask for a scan.  I removed the old drivers and reloaded your new drivers approved by Maverick, but no

  • I think that my system of basic windows files have been changed and currupted can someone please help!

    I get major errors that led me to think my windows files have been modified and currupted I just can't install microsoft updates they download, but I'm unable to install, I'm unable to use the Disk Defragmenter and disk scan as it said my system is a

  • WRT300N and WRT54G - problems accessing Windows update

    I have the same problem with my two wireless routers.  For some reason they are both crashes me to windows update.  It is the only site that I can't get to.  This happened after I updated the routers for the new firmware.  I bypass the router once pe

  • Speeds of different treatment on the same computer

    Why I'd get 2 different processing speeds, showing on my computer?  If I go to properties on my computer, it displays 1.79 GHz, but if I go into the information system in the Control Panel, it 777 MHz.  What is important is because we are looking at

  • Both can be used for the trigger guard radios

    Hello I have 2 1242 Accesspoints. 1 is the root bridge and the other the Nonrootbridge. My question is that I can use the two radios for the link? At the moment it works with a radio. It works with the two g od. a Standart but not both together. If I