Scroll horizontally AND vertically?

I defined a list() and set the width to a specific value. This list scrolls vertically. It is possible to add an entry that exceeds the width of the list. What would be the recommended method to make the entire list visible input text?

Hey eugenevk,

Yes sorry for that one. I did not consider what happens when a user had to update the list. the onAdded() method is called only once when the list is first added to the screen, and the method will never be called subsequently. because of this our manipulations of label are not made when we need to be done the next time. to solve this problem rather than the onAdded() method, we will override the method drawLabel() of the display of the cell. This method is called everyime, that a label is changed. One thing to remember is that most of this is conjecture based on the latest discussions of the forum. Unfortunately, RIM has not disclosed any information about their cell converters and we've just been fiddling around haha. That being said if you find bugs let us here on the forums know and we will try to fix it

Try the following new code:

MyCustomCellRenderer.as:

package{    import flash.text.TextFieldAutoSize;

    import qnx.ui.listClasses.AlternatingCellRenderer;

    public class MyCustomCellRenderer extends AlternatingCellRenderer    {        public function MyCustomCellRenderer()        {            super();        }        override protected function drawLabel():void        {            super.drawLabel();

            /*             * Add the check for a label object. Sometimes this             * function is called via the draw function prematurely            */

            if (this.label != null)            {

                /*                * If the width of the text (in pixels) is larger than the width                 * of the cell perform the cut off                */                if (this.label.textWidth > this.width)                {                    /*                    * Get the character per pixel (charPerPixel) value to use later when                    * we want to calculate how many MAX characters can show up in one row.                    */                    var charPerPixel:Number = this.label.text.length / this.label.textWidth;

                    /*                    * Calculate the max amount of characters to show on screen.                    * - 3 to accomodate for the leading dots (...)                    */                    var charMax:int = Math.floor(charPerPixel * this.width) - 3;

                    this.label.text = this.label.text.substr(0,charMax) + "...";

                }            }

        }    }}

Hope that helps. Good luck!

on a side note: it seems to be a problem, I just noticed that it doenst correctly calculate the width of the cell. ill try to fix this, but for now the above code should do. I'll keep you in the loop!

EDIT: There was an error in the code, updated with the correct code.

Tags: BlackBerry Developers

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