I am working on Creating some objects in a container withing a from in codenameone. I am moving objects every 2 seconds, the objects are moving but the container is unable to display the objects. It displays only when i click the sidemenubar and it shows objects on the container. If SideMenuBar is closed , it again disappears.
I am posting 2 images which describes the problem.
I used repaint(), revalidate() and also show() but it is showing the same thing. Please Help!!
Its hard to tell what you are doing but I guess you just paint the green background on top of these images that you draw at some point. The side menu bar converts the form to a screenshot when sliding out so you are seeing a frozen state of the form not the actual view.
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I have developed app using Codename one.I want to set specific height of dialog because my text overidden while displaying message in dialog body .what should I do for that?
Thanks in Advance?
I have added image in which first image is original image and second one is cut image which is displaying on screen while using infinite progress bar. my code is "Dialog ipDialog = new InfiniteProgress().showInifiniteBlocking(); ipDialog.Dispose()" I want whole image on screen like original image.
can you help me to solved this ?
You can use the Dialog show method that accepts int values to determine the distance from the edges. But normally this is a matter of the text sizing and dialog construction.
Also make sure you are showing the Dialog from the EDT thread.
Referring to this question and answer by Shai Almog:
Rebuild list of containers without scrolling the list
I have a form with one container (TableLayout), which contains several rows with labels and buttons. Clicking a button changes the order of the rows and rebuilds the whole form (after myForm.removeAll() ). After myForm.revalidate() the form jumps to the top.
I am trying to implement this exact behaviour, to return to the same point (scroll position Y) after revalidating/changing the container contents.
I subclassed the Container-class to make setScrollY(int) visible. Using this with an arbitrary value does not scroll to the position, so it seems that the setScrollY method is not changing the scroll position of the content pane overall.
And myContainer.getScrollY() always returns "0". I only get the scroll position by calling getContentPane().getScrollY().
But it is obviously not possible to call the setScrollY()-method on the content pane - as it is not possible to subclass the content pane - to scroll back to the same position after revalidating the form.
Thanks for any advice!
Use border layout which disables the scrolling of the form/content pane.
Place your container (where you exposed setScroll) in the center and make sure to invoke setScrollableY(true) on that Container.
My Codename One app features a Form with 3 SpanLabels containing text and one Container in LayeredLayout with an image and an overlay.
this.add(BorderLayout.NORTH, spanLab1);
this.add(BorderLayout.CENTER, imageCont);
this.add(BorderLayout.SOUTH, BoxLayout.encloseY(spanLab2, spanLabl3));
This yields to the following:
This is not satisfactory as the image (that appears in the center and should be CN1 icon) is not scaled but cut because it is not possible to scroll down.
I tried to force the Form to be scrollable (this.setScrollableY(true)) without success.
Did I make a mistake somewhere, for example should all my content be placed in the BorderLayout.CENTER since according to the documentation the NORTH position is dedicated for the title and the SOUTH one for an optional menu bar (I tried this without success)?
Or should I show a Dialog instead (that offers Y-Scroll out of the box) ? What is actually the proper way to show all my (long) content with no picture cut or text overlaping ?
EDIT December 22nd 2016
As #Tizbn wrote the Form's ContentPane has to be in Vertical BoxLayout. So the call to the parent constructor has to be written :
super(new BoxLayout(BoxLayout.Y_AXIS));
Thank you very much for any help!
Vertical Scroll is disable in BorderLayout . For that BoxLayout with Y-axis can be used and make setScrollableY(true) in the Boxlayout. Hope it will help .
I'm not sure if this is the right place to ask because I dont have any code to show. I'm actually looking for ideas on possible ways to solve my problem.
I have an app that displays the grid on the screen when the media query has a min width of a tablet.
But when the view is in mobile mode I don't want to show the grid. Instead I have a drop down menu which has a grid option. When selected will be show in a paper-dialog (pop up)
The problem is I have to create two grids (vaadin-grid) and show the appropriate one based on the view. Is there a way to have only one grid? Can I put it in a paper-dialog but not pop-out when in tablet and desktop view?
Thanks in advance
If your grid element has every custom property then that is an element in the DOM, so you can move it into the dialog if thats needed using javascript:
let myGrid = this.$$('#myGrid');
let myDialogContent = this.$$('#myDialogContent');
Polymer.dom(myDialogContent).appendChild(myGrid);
Also if you think it a different way, then you can hide the grid outside of the screen and you can slide that in when it's needed like a drawer panel and you dont need to move the element at all in the DOM.
By the way for programming question stackoverflow has the https://softwareengineering.stackexchange.com/ site, but I think it is Ok to send it here.
I have a big image with coordinate points.
I need to navigate through these points by pressing onscreen buttons.
Only a part of image is seen on the screen at once (shows your location).
By pressing arrow button the view moves to the next part of the same image.
This example looks good.
Please, suggest any way to implement this functionality in Codename One App
Thank You.
You can use the Map component but you can place any image as a label icon within a scrollable container and just let the user use the touch/keys to scroll.