If anyone has a framebuffer implementation, could you please share some performance benchmarks? Or at least tell me how much difference are there in your point of view. I need to make a flash game which has almost 1K 50x50 bitmaps moving on screen(more than 10K display object in display list), and want to know if flash can support it well on a normal PC with at least 30FPS.
View 2 RepliesI'm new to Flex/ActionScript (.NET/Java has been my main playground so far).I'm trying to build a Flex app that has a list that is meant to look and behave like an infinite list (of items - which can be any object). The idea is that the user should be able to scroll up or down and never reach the end of the list in either direction.
An example would be a list of numbers. Scrolling up will show negative numbers; scrolling down will show positive ones. Now, my list is a simple Flex Spark list (using Flex Hero).It is bound to a data provider that is an ArrayList.My initial idea was to listen to the scroll event and add/remove items as needed. However, in the current build of Flex Hero, there is a bug that doesn't raise scroll events for vertical scrollbars sometimes (http:url].....).So, I'm using the workaround suggested in the link above (i.e listening to the propertyChanged event of the list's scroller's viewport. The event though only gives me the current verticalScrollPosition. And it looks like the default spark list supports smooth scrolling and raises the event many times before the list scrolling comes to a standstill (it is a nice visual effect).Now, I need to :
Figure out whether it is scrolling up or down (how do I do that?)
Figure out which items are visible. I can get this from:
list.dataGroup.getItemIndicesInView()
Add/remove items as needed, so that the user can scroll up and down forever, never reaching the end of the list in either direction.
I've tried the following code but it doesn't work. (comments in code).
import mx.collections.ArrayList;
import mx.core.INavigatorContent;
import mx.events.FlexEvent;[code].....
I am trying to use the reflect class from "http://pixelfumes.blogspot.com/2007/03/reflection-class-v3-with-source .html" but I keep getting this error:
ArgumentError: Error #2015: Invalid BitmapData.
at flash.display::BitmapData()
at Reflect()
at Site_fla::GalleryPage_29/loadThumbs()
at Site_fla::GalleryPage_29/sortXML()
[Code]...
btw, first I used assigned thumbContainer as the mc argument (outside the loadThumbs() function) and it worked but not exactly what I wanted... because I thought it is supposed to update when the movieclip is animated but it actually didn't... when I use a scroller, only the thumbs that are first loaded to the stage get the reflection..
I have list of object that I want each item to be rendered with some renderer that include a delete and edit buttons with some text. What is the best way to make the list of object re-order-able in drag/drop fashion so the user can drag on item on top of another to change the order of the list.
View 1 RepliesHow do I identify all the display objects in the display list in ActionScript, bellow the one that I have clicked? All the other objects are shadowed by the first one. What if other objects have visible parameter as hidden?
View 1 Repliesmy actionscript application draws to every pixel in the framebuffer every frame, but the flash renderer seems to clear the framebuffer anyway. this supposition is based on the time flash spends drawing when my scene graph gets smaller and smaller.
is there a way to disable the flash renderer from clearing the framebuffer before it draws my stuff?
I have a list containing display objects from throughout the application (insertion order). I want to process the list either top-down (parent, child) or bottom up (child, parent). The only requirement is that either a parent is processed before any child or vice versa a child before its parent. What is a good approach? This question is not about sorting a list. It's about retrieving the depth of a particular display object.
Example
Display list:
A (root)
B1
C1
C2
D1
B2
......
My list:
list = [E1, F4, A, B2, B1, C3, ..., N9, N8]
Bottom-up:
N9, N8, F4, E1, C3, B2, B1, A
Top-down:
A, B2, B1, C3, E1, F4, N9, N8
Does not matter if N9 before N8 or N8 before N9. Important is that any N is before M (first run) or any M before its children N* (second run).
I am working on an air-application but written in as3. How can I still display an fileSystemList-Component(flex) written in actionscript?
View 1 RepliesActionScript Code: import flash.display.BitmapData;
[Code]...
my problem relies in here, even though i never specified a fillcolor it's filling my bitmap with white, and i don't know how to undo it, the only way is if i remove every parameters such as width and height, but i need to resize it so, you know.
I am using a spark list control to display certain items with my custom Item Renderer. I am trying to achieve the following: (1) show a separating line between rows in my list control (2) even when not a single row has been added, I want a horizontal grid lines to be displayed in the background
I am not sure whether (1) and (2) can be achieved in one go. I can solve (1) by modifying my item renderer to have a border, I guess. But I want to know whether there is a better or more conventional way.
Is there a direct way to get the item index of the data inside an itemRenderer? I need to display the item number against each item. I am currently doing a workaround and won't allow reuse of my itemRenderer component.
var index:int = model.dataColl.getItemIndex(data) + 1;
itemNo = index.toString();
This is what i am using now, it works, but the concepts of component reuse and data abstraction are compromised.
I am using Flex 3.
I need to display set of images in horizontal list. The list needs to be controlled with next and previous buttons. Moreover I need to display paging showing no of images per page below the list.
View 1 RepliesI'm asked about Display List architecture in Flex at an interview.
View 2 RepliesI am trying to display a list of items in a datagrid from a XMLList.
<Series no="1">
<file>
<filenum>1</epnum>
<prodnum>4V01</prodnum>
[code]...
My current code allows me to retrieve every Series into an XMLList and then i have a nesteddatagrid class that allows me to do things like.
<classes:NestedDataGrid width="100%" height="100%" id="gridFiles" dataProvider="{filesList}" >
<classes:columns>
<mx:DataGridColumn headerText="Season" dataField="@no" width="60"/>
[code]...
However this displays the datagrid with two rows, the first row has 1 in the Series column and then the two files crammed into the second cell in the same row. The second row is the same but has the number 2 in the Series column and the two series #2 files crammed into the cell next to it.If i do not use the nested data class i can pull the files using Series.file instead and all 4 of the files list correctly, however i do not get the Series number for each...
I have an embedded image asset (with a scale9 grid), and I'm trying to get the bitmapdata when it's resized, but I can't seem to do this without adding it to the display list.
I try this:
spriteAsset.setActualSize(w,h);
spriteAsset.width = w;
bmd.draw(spriteAsset);
But when I then draw out the bitmapdata with graphics.beginBitmapFill(), I just get the original un-stretched image.
Or do I need to take 9 separate BitmapData images and make 9 separate bitmap fills?
Is there a way display the display list in the Tree component. I could parse the display list into xml but then I would not be able to create a reference to the display object.
View 1 RepliesI've created a component which is basically a meter (extends skinnable container). The skin to the component contains two rectangles (background and the actual meter). This component receives an arraycollection with the following fields value, max and min(the arraycollection I am passing is Bindable). When I initialize and pass the data to be used to draw It works great (keep in mind - only works the first time). I've created a button that changes the data array and shows the current meter value. Apparently the meter's value is changing everytime I modify the ArrayCollection I've set to be used for rendering.(dont want to say "dataProvider" because it is not a Flex dataprovider, just a variable )... here is the code...
public class meter extends SkinnableContainer {
[SkinPart( required = "true" )]
public var meter:spark.primitives.Rect;
[Code]....
how in Flex can I display a message within a Spark List component that states that the List is empty. For example if I have a List showing number of jobs outstanding, if my List is empty then I want a message displayed across the List stating "there are no jobs to perform".
I'd rather not use an Item Renderer because then it's an Item (the list is not empty) and the item can be selected.
I have an arrayCollection of objects that extend Sprite, and have bitmaps within them. I want to display these in a list (or some other component that would allow a user to scroll through them, and see their associated data.)
When I do: myList.dataProvider = myArrayCollection
the list just shows a bunch of lines of [Object, Item] instead of the visual sprites.
Here is a simplified version of my Object:
public class myUIC extends UIComponent
[Code]...
Tried many different ways to get it to show up in a List, but can't do it.
I want to have some sort of a list, which will contain movieclips (or thumbnails) ... is this possible to implement using the List component or DataGrid component?
View 1 RepliesI am using a horizontal tilelist in flex to display an image gallery with only one item in horiz. tilelist being shown at a time. I have next and previous buttons on both sides. The problem is I want to display a particular item/image in that list when user clicks on a thumb image from another thumbimages tilelist at bottom. I used someTilelist.selectedIndex property but it just selects that particular index in list, it does not show that particular item/image. I want the list to show that particular image, not just select it. Please take note that the horiz. tilelist shows only one image at time.
View 1 RepliesI'm trying to create a nested list in Flex which will dynamically resize to display all children when the data provider changes.
Here's a simplified example which illustrates the problem:
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
[Code].....
The list sizes remain static when items are added.
If I add variableRowHeight="true" to the outer list then the inner lists will correctly resize. But the outer list itself remains at a fixed size.
How can I have both lists resize automatically to display all children?
i have made a list control. i want to display the name of the objects in it in a text control box
the code i am using here is
public function add(event:MouseEvent):void
{
var str:String;
str = mylistcontrol.dataProvider.getItemAt(0).toString();
[Code]....
The problem with this code is i am using index value of 0. however i want to display the name of object on which i have clicked or which is highlighted.
Can a flash.display bitmapData object be converted to flash.displayObject? i bump with an error when i tried to convert a bitmapData to DisplayObject
=> setChildIndex(DisplayObject(bitmapData),0);
"TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::BitmapData@35f4779 to flash.display.DisplayObject."
In one of the application I am working, List has been used. I am required to display items in the form of tiles. I do not want to change the component as of now. Is there any way to achieve this layout in list only.
View 3 RepliesHere is part of my code in short:
[Code]....
I realized that if I do addChild, I can't really see the dynamically added component, since flex did not reserve space for my List to display. So I do parentDocument.addChild, and then it appears no problem. My question is since it's being added in the parentDocument, so it is suppose to be a component belong to parentDocument, so is that component still be able to call this handleMouseDown? From my experience, it's still able to, but which doesn't make sense to me. Can someone explain a little about why it can still work, or any better approach other than parentDocument.addChild
I'm working on a dictionary using Flash components. I'm trying to implement a search field, I manage to filter word and letters, as you do on goggle. What I need is to filter from the beginning of the word as you do on a Dictionary.
[Code]...
I'm currently working on a flash game and I need to know how to addChild a BitmapData or draw a BitmapData to screen. If I can't than how can I give a DisplayObject my BitmapData?
View 2 RepliesI'm working on a game that has many elements on stage, so I'm looking to optimize my loops. I know that Vector is faster than looping an array, but I'm also in some cases using:[code]My question is when I use getChildAt, is that accessing an Array or Vector or linked list or other? Should I instead store references to my objects in a Vector and loop through that instead?
View 2 RepliesIs there any way to test if a display object has been added to the display list?
View 9 Replies