I have a flex application which is hosted on Azure.
I have some data stored in a blob in a private container.
How can I use URLLoader to display the data? If I use a public container , then I am able to read from the blob in my application. However, if the type of the container is private URLLoader fails.
one thing i've never really understood about AS3 is that you can't have a private set method and a public get method together. from within my class i would like to assign values that would call a private set function:
[Code]...
is there no way to use the set keyword on a private function?
I have this code that works great but unfortunatelt it only works on the second pass ! On the first pass it complains of ...TypeError: Error #1010: term is undefined and has no properties. On the second pass it works fine Here is the code !
public class Main extends MovieClip public var source:*; public var indexcount:Number; public var loader:Loader; public var loadertxt:URLLoader = new URLLoader(); //loadertxt.dataFormat = URLLoaderDataFormat.VARIABLES; << this, if
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I've got 3 columns in an SQLite db I built with Firefox's handy SQLite Manager. So, I created 3 columns, an index/reference that's just an incrementing INTEGER for easy reference, a descriptive title of the image (so it can be searchable later) in a TEXT, and a BLOB type that holds the pngs.
I'm trying to add this in an assets folder into my project (as a pre-populated database) and display the blob images, one at a time, in a window one after the other, scrollable by user. This is where I'm running into problems. Eventually I want to be able to encrypt it and add a search tool, but first things first, and that's displaying an image.
I have spent several hours scouring the web about this topic, but there isn't much help out there: Adobe has tips about using SQLite with AS3 (their reference documents and the support section of their website have some overview articles) but nothing refers to reading blob data in depth.
On this site, I've found some references to Adobe Air looking for extra byte information when reading blobs since they have a different syntax to write to the databases created within the program. See: What is the first bytes in a Blob column SQlite Adobe AIR? Blob Sizeinfo?
My Mysql database stores images (in PNG, JPG)of our personnel and it's field type is set to longblob.
Is there any possibility to load blob data type using HttpService and render it in Image component in Flex
I'm eager to know about as it comes in handy in the nearest future!!!
I need to be able to save and load images into an SQLite database using Flex 4.5 for a mobile application. The use case is this:
Inside the view there is a spark Image object with a URL as a source
When user clicks button, the Image is saved to an SQLite db inside a BLOB field.
In a separate Image, the source is set to the ByteArray stored in the db.
The biggest question so far is this: where do I get the ByteArray for a loaded Image? I've tried debugging and inspecting Image, BitmapImage, and BitMapData but there's no sign of the byte array.... perhaps it's inside the ContentLoader? But that's null unless I enable caching.
I've done some research and there are no complete examples for how to handle this. I've written a simple View that anyone can copy and paste into a new project. It will compile without errors and can be used for testing. I will update this code as I get the answers I need so that anyone can have a fully working example of this workflow.The only caveat: I used a synchronous connection to the DB to avoid complicating the code with event handlers, I wanted to keep it as simple as possible.I will only mark this question as answered once it is fully functioning both ways.
UPDATE SEPT. 09 2011: The code below is now fully functioning in both directions (save and load). Here are some of the things I've learned: It turns out that the ByteArray of a spark Image can be found inside the LoaderInfo of the image itself. Like this:
image.loaderInfo.bytes
However, trying to set this ByteArray as the source of another image ( image2.source = image1.loaderInfo.bytes) results in this security error: Error #3226: Cannot import a SWF file when LoaderContext.allowCodeImport is false.Which is too bad because it would save so much time and processing power.the workaround is to encode the ByteArray using either a JPEGEncoder or a PNGEncoder. I used the JPEGEncoder which produces much smaller files. Here's how:
var encoder:JPEGEncoder = new JPEGEncoder(75);
var imageByteArray:ByteArray = encoder.encode(imageToSave.bitmapData);
Now the problem is saving these bytes to the DB. Saving them as they are now will not work once we read them out, I'm not sure why. So the solution is to encode them into a base64 string like this:
var baseEncoder:Base64Encoder = new Base64Encoder();
baseEncoder.encodeBytes(imageByteArray);
var encodedBytes:String = baseEncoder.toString();
So now just save that string into the BLOB field and later read it out. However, you have to decode it from a base64 string to a ByteArray like this:
var encodedBytes:String = result.data[0].imagedata;
var baseDecoder:Base64Decoder = new Base64Decoder();
baseDecoder.decode(encodedBytes);
var byteArray:ByteArray = baseDecoder.toByteArray();
Now assign the bytearray as the source of your image and you're done. Simple right?if you find any optimizations or alternative ways to do this.I will respond and keep this code updated if need be.
I have a swf file but when I put it on a server at work, it is blocked. I get a black screen that just shows three dots as if it was loading. Nothing comes up. The swf has an FLVPlayback component which links to an external flv file. After talking with tech support locally, I found out that the swf is being read by the server scanners as an MP4 container and that is why it's being blocked. I would like to know if there is a way I can generate the swf without it being read as an MP4 container so it will work here.
View 8 Replieshere is a snippet of my code in an as file
ActionScript Code:
class PoolBall extends MovieClip {
private var poolBall:MovieClip;
[code].....
there are classes definitions where all their methods are private my question is why are they private, because i've tried a code wherein i changed all the private access modifier to public and nothing changed!
what if you make an instance of that class with all its method private, how are you be able to access that on another class. coz i know private methods are only accessible to the class where they are declared! will the instance of that class be able to access the superclass's private methods!
on private variables, it's still not clear to me as to why make a private variable and then use a getter and setter, when you can simply make it public! are these variables called static?cause on the way i understand it private functions and private variables are static?
I used a movieClip to store the attach movieclip, but How to get back the variable from that movieClip container, such as a I set a array in the exiting movieClip
var m_click:Array = new Array();
for (var f=0; f<=this[mc_name+"_qty"]._totalframes-1; f++)
{ m_click[f] = 0; }
I want the attached movieClip "y_qty" with a button inside to get the m_click for changing each m_click[0]..m_click[1]..value, how to do it?
I used a movieClip to store the attach movieclip, but How to get back the variable from that movieClip container,such as a I set a array in the exiting movieClip [code]I want the attached movieClip "y_qty" with a button inside to get the m_click for changing each m_click[0]..m_click[1].. value, how to do it?
View 1 RepliesIn a Flex Mobile project I have a simple itemRenderer where I'm trying to create an "bubble" texting effect, similar to ichat or iphone (just so you get what im going for). But if the text is longer than the screen it runs off, rather than just going down a line.
If I set Group thats holding the rectangle(to create the bubble effect) and the label to 100% it works and keeps it from exceeding the list containers bounds, BUT the group is always at 100% and looks bad, I'm trying to keep the "bubble" JUST AROUND the text.
Anyway so, at the top of my itemRenderer I tried specifying:
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" width="100%" height="100%">
And here's my layout I figured since msg_container has a width of 100% I was hoping bubble_lable_group would just not exceed that but...it doesnt...it just runs off. I tried setting a max width but that does not allow you to input percents. And just to say it 1 more time. I know if i set bubble_lable_group width to 100% it works, and keeps it from going off the edge, but then the rectangle "bubble" stretches all the way across and just looks bad.
<s:VGroup id="main_container" horizontalAlign="left" paddingBottom="10" paddingTop="10"
verticalAlign="top" width="100%">
[Code]....
Okay so you've got your private vars in your AS2 Class, you think they're all safe right? Wrong.
Doing a trace(MyClass.myvar); will spit out an error that the var is private and you can't touch it.
But a trace(MyClass["myvar"]); will work perfectly fine. You can use it normal, without any setters getters outside the class.
Is there a way to protect against this? I think this is a huge security flaw. I know it's simple OOP, but a private var in an object should have rules.
I have a loop that goes through data from a book and displays it. The book is not consistent in it's layout so I am trying to display it in two different ways. First way(works fine) is to load the text from that section in to a panel and display it. The second way is to create a new panel (panel creates fine) and then add collapsable panels(nested) to that panel. Here is the code from the else loop.
else if (newPanel == false){
// simpleData is just for the title bar of the new panel
// otherwise the panel has no content
[Code]....
The error I get is: ReferenceError: Error #1069: Property panel4.4 not found on components.readTest and there is no default value.
I have tried setting the "name" property instead of the "id" property.
I have a viewstack container w/ 3 views: red, black, and blue. How can I completely hide the black & not include it?
[Code]...
I am creating an flex Air project,so mxml file will run. I have circles in one Big circle at one side and will be same on other side.
Now how to drag any circle from any Big circle to other side. Or it could be like any two container having circles, then how to drag and drop circle?
For one circle i am able to do drag and drop.But I want one Big circle on left hand side and one big circle on right hand side .And small circles with class names will be in these big circles.Now i want to drag and drop those small circles in big circles.Big cicles should not move. Even i have tried this code in actionscript
package
{
import flash.display.Sprite;
import flash.events.MouseEvent;
[Code].....
But in this i want big circles should not move and small circles should only be dragged.
I need it in FlexUnit to test private methods. Is there any possibility to do this via reflection by using describeType or maybe flexUnit has some build in facility? I dislike artificial limitation that i cannot test private functions, it greatly reduces flexibility. Yes it is good design for me to test private functions, so please do not advise me to refactor my code. I do not want to break the encapsulation for the sake of unit testing.
View 4 Repliesis there a difference between classifying a function 'private' or 'private static' in a singleton? It seems that they both do the same thing. Maybe some difference in performance?
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Can ASDoc be set to document private members ala JavaDoc?
View 1 RepliesI try to serialize objects with their private attributes, in Flex.
The introspection API does not seem to allow it:
"The describeType() method returns only public members. The method does not return private members of the caller's superclass or any other class where the caller is not an instance."
Is there another way for an instance to know the name of its private members?
Is there a way to change private static field of an alien class?[code]...
View 2 RepliesI'm currently working on a custom component which extends Canvas (let's call it SuperCanvas) ; it's basically a container that let you zoom & pan its contents. It would be too long to explain why, but I can't use scrollRect, so I was forced to declare a Canvas object (called innerCanvas)... inside my SuperCanvas (I know, not very nice =/) I would like to know if there's a proper way to "redirect" the creation of my component's children in this canvas.
[Code]...
Are there any way to declare a child component in mxml which is private/protected or even static? Sure we can do this inside a script tag, but are there any other way?
View 2 RepliesI am trying to declare private variables that will be used elsewhere in my flex mxml main application. But I need to only create the variables when their is an equal number in my xml file.
My xml snippet looks like this:
<POIs>
<location>
<name>jane</name>
[Code].....
Is it possible to wait until the xml has loaded before declaring these variables?
I'm trying to save a byteArray to a blob.
The save method looks to be working:
Code: Select allpublic function SaveImage (Image $im)
{
$ba = new Zend_Amf_Value_ByteArray ( $im->bArray );
$data = mysql_real_escape_string ( $ba->getData () );
[Code].....
In Flash I'm getting my Image class back but the byteArray seems to be 0
Is there a easy / good way of getting the url from the URLLoader object? It seems at least two other people (this guy and this this guy) have wondered the same thing. Maybe we can get an answer here on s.o.?
View 2 RepliesI have a logo that I made in Fireworks, and it looks decent, but I was wondering if anyone could mimic it with movement. For example, if someone could use actionscript to make it "wiggle" or wave like a flag in the wind, that would be awesome.
Notice how the blue line itself stays at about the same thickness (it barely starts getting thicker), but the shading around it thickens as it goes more and more to the right.
Here's the image (ignore the text):
I was browsing the net and came upon this site, which has a really cool blob-like borders effect. I really wanted to learn how to accomplish this effect, here's what I know as of now:
1. I must have an array of points, connect them using curveTo and fill it. For this I have to use this methods:
createMovieClip, lineStyle, beginFill, moveTo, curveTo, endFill
2. Then I must have a proximity detector for each point, more or less like:
dx = point._x - _xmouse;
dy = point._y - _ymouse;
distance = Math.sqrt(dx*dx + dy*dy);
And if the mouse is too close to the point make it move away with a certain velocity (but only if the mouse is moving, if it is still, just make the blob wobble for a while, using an elasticity effect).
point._vx += point._ax;
point._x += point._vx;
Where the acceleration must be a fraction of the distance we calculated before:
k = .2; // example
point._ax = distance * k;
But we must also have damping so we can have the elastic movement, so:
damp = .9; // example
point._vx += point._ax;
point._vx *= damp;
point._x += point._vx;
3. Finally when the mouse is clicked on a blob we must communicate with the others and make them all wobble, by using LocalConnection. How do I make the array with all the points and access them?; how do I impose the proximity detector into each point and make the curveTo's change?
in AS3 I'm trying to load a URL (a Yahoo address) into the application so I can process the source code and pull things out of it.However, when I load it, or any other page, I get 0 bytes back.Here's my current code.
private function doSearch():void {
var req:URLRequest = new URLRequest("http://yahoo.com");
var loader:URLLoader = new URLLoader();
[code].....
I was trying to retrieve binary data over HTTP for my Flex application, and was running into some stumbling blocks. HTTPService did not seem to deal with binary data well, people said to use URLLoader. But URLLoader does not have the nice AsyncToken/IResponder interface that HTTPService provides.
So, I did some searching and could not find anyone extending URLLoader to provide this kind of functionality. I went ahead and took a stab at it myself: [URL].. Basically it wraps a URLLoader and an AsyncToken, and maps the COMPLETE, IO_ERROR, and SECURITY_ERROR events from URLLoader to results/faults that get raised on the AsyncToken.
[Code]...