I want to display a HTML file for a mobile application using Flex Builder 4.5.
The following code does not work -
protected var webView:StageWebView = new StageWebView();
protected function view1_viewActivateHandler():void
{
if (StageWebView.isSupported)
{
webView.viewPort = new Rectangle(5, 80, stage.width-10, stage.height-9);
webView.stage = this.stage;
webView.loadURL("file:/assets/sample.html");
......
I get this error - Error #2044: Unhandled ErrorEvent:. text=Load error.
I am new to actionscript and flex.
The html file cannot be loaded using webView.loadURL("file:/assets/sample.html");
I found the reason and workaround here
Related
I am trying to write into the file and everything was working fine upto the time i used File.desktopDirectory but after updating it with File.applicationDirectory lots of places i am getting security issue.
So overcome this issue i tried this code
File file = File.applicationDirectory.resolvePath("urlsList.properties");
var writeStream:FileStream = new FileStream();
var pathToFile:String = file.nativePath;
var destination:File = new File (pathToFile);
writeStream.open(destination, FileMode.WRITE);
file.moveTo (destination, true);
writeStream.close();
Now its throwing error at file.moveTo (destination, true);
SecurityError: fileWriteResource at flash.filesystem::File/moveTo()
at Demo/addNewUrl()[C:\Users\subodhc\Adobe Flash Builder
4.5\Demo\src\Demo.mxml:319] at Demo/writeFile()[C:\Users\subodhc\Adobe Flash Builder
4.5\Demo\src\Demo.mxml:283] at Demo/__deleteServerConfig023_click()[C:\Users\subodhc\Adobe Flash
Builder 4.5\Demo\src\Demo.mxml:575]
Taking screenshot functionality was working in my application but now it is not working. The code I am using for taking screen shot in flex is as below:
I am using flex 3.5 SDK
private function captureScreenShot():void
{
var jpgSource:BitmapData = new BitmapData (siteDisplayContainer.width, siteDisplayContainer.height); // siteDisplayContainer is the <mx:VBox> flex container
jpgSource.draw(siteDisplayContainer);
var jpgEncoder:JPGEncoder = new JPGEncoder(85);
var jpgStream:ByteArray = jpgEncoder.encode(jpgSource);
var myDate:Date = new Date();
var unixTime:Number = Math.round(myDate.getTime()/1000);
var reqURL:String = parentApplication.imageDownloadScriptURL+unixTime+".jpg"; // imageDownloadScriptURL is the php file absolute path
var header:URLRequestHeader = new URLRequestHeader("Content-type", "application/octet-stream");
var jpgURLRequest:URLRequest = new URLRequest(reqURL);
jpgURLRequest.requestHeaders.push(header);
jpgURLRequest.method = URLRequestMethod.POST;
jpgURLRequest.data = jpgStream;
navigateToURL(jpgURLRequest, "_blank");
}
PHP file code for downloading flex screen shot:
<?php
if (isset($GLOBALS["HTTP_RAW_POST_DATA"]))
{
// get bytearray
$jpg = $GLOBALS["HTTP_RAW_POST_DATA"];
// add headers for download dialog-box
header('Content-Type: image/jpeg');
header("Content-Disposition: attachment; filename=".$_GET['name']);
echo $jpg;
echo '<script TYPE="text/javascript">window.close();</script>';
}
?>
Since the data is binary, I don't know how I can debug this code. I do not know where exactly is the code failing. There cannot be any major error since this exact code was working till about 6 months back.
How do I debug this code? What can be the reason for the code not working?
If it was working six months ago, have you checked your server settings for changes in the PHP version or security?
For testing the PHP, can you pass a binary into you it to verify that portion is working? For the flex side, I would setup the debugging version of flash player and then setup breakpoints and trace statements and just go through it and see if the flex debugging perspective and flash player give you any good debugging data to work with on narrowing down the culprit.
Im building a Test Maker App. I need some help on loading files in Android mobile. The type i want is the type where the user can look for his file from a file browser. This is the code i have so far but it wont work. My mobile always says "No files were found".
var file = File.applicationStorageDirectory.resolvePath("saved projects");//This is a folder
file.browseForOpen("Open Your File", [new FileFilter("Text Files", "*.txt")]);
file.addEventListener(Event.SELECT, onFileSelected);
public function onFileSelected(e:Event):void {
var stream:FileStream = new FileStream();
stream.open(e.target as File, FileMode.READ);
loadTxt.text = stream.readUTF();
}
Plus additional question: Where is the best location to save files in the ANdroid mobile?
You can write your file manager, it should not be difficult. Scan a directory with method "getDirectoryListing":
var file:File = File.applicationDirectory.resolvePath('myDirectory/');
var filesList:Array = file.getDirectoryListing();
and show a list of files.
This piece of code is working in flashplayer 11 but it's not working in flashplayer 14.
AS3 code :
private function savePDF(pdfBinary:ByteArray, urlString:String):void{
try{
//result comes back as binary, create a new URL request and pass it back to the server
var header:URLRequestHeader = new URLRequestHeader("Content-type", "application/octet-stream");
var sendRequest:URLRequest = new URLRequest(urlString);
sendRequest.requestHeaders.push(header);
sendRequest.method = URLRequestMethod.POST;
sendRequest.data = pdfBinary;
sendToURL(sendRequest);
} catch (e:Error) {
// handle error here
trace("Error in savePDF "+e.message);
trace("StackTrace : "+e.getStackTrace());
}
}
and these are the errors I got :
Error in savePDF Error #3769: Security sandbox violation: Only simple headers can be used with navigateToUrl() or sendToUrl().
StackTrace : SecurityError: Error #3769: Security sandbox violation: Only simple headers can be used with navigateToUrl() or sendToUrl().
at global/flash.net::sendToURL()
at Export2Publish/savePDF()[my_project_dir\src\Export2Publish.mxml:158]
at Export2Publish/GeneratePDF()[my_project_dir\src\Export2Publish.mxml:386]
at Export2Publish/getUrl()[my_project_dir\src\Export2Publish.mxml:138]
at Export2Publish/___Export2Publish_Application1_creationComplete()[my_project_dir\src\Export2Publish.mxml:3]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[my_framework_dir\src\mx\core\UIComponent.as:9051]
at mx.core::UIComponent/set initialized()[my_framework_dir\src\mx\core\UIComponent.as:1167]
at mx.managers::LayoutManager/doPhasedInstantiation()[my_framework_dir\src\mx\managers\LayoutManager.as:698]
at Function/http://adobe.com/AS3/2006/builtin::apply()
at mx.core::UIComponent/callLaterDispatcher2()[my_framework_dir\src\mx\core\UIComponent.as:8460]
at mx.core::UIComponent/callLaterDispatcher()[my_framework_dir\src\mx\core\UIComponent.as:8403]
Any fix for this issue ?
You can start by using a try and catch like this :
try {
sendToURL(request);
}
catch (e:Error) {
// handle error here
}
If the problem is not visible on dev environment, I recommand you to install a flash debug player which you can download here : Flash Player Downloads to see what kind of error your code will fire.
If your code is fine, in dev and prod environment, you should debug your server side script.
I'm getting a System.InvalidOperationException: Already closed exception after updating iTextSharp NuGet package from v. 5.3.3 to 5.4.2.
This happens when I call:
Document doc = new Document(PageSize.A4);
.
.
.
doc.Close(); // Document is already closed hence the exception
It's important to note that this code was working flawlessly with iTextSharp 5.3.3.
I commented that line and the PDF got generated but then iTextSharp started outputting corrupted PDF files that could not be opened by Adobe Reader nor Windows 8 built in PDF reader.
Playing with the code in Visual Studio and taking advantage of IntelliSense I looked at the various possible methods on the Document object. I saw that there is an additional method called CloseDocument(), so I changed this line:
doc.Close();
to
doc.CloseDocument();
and guess what? The thing started working again. No more exceptions. Awesome!
Hope it helps anyone that might encounter this same issue in the future...
Well well well... after trying different input options I started getting the exception again...
I was explicitly calling:
pdfReader.Close();
inside an AppendToDocument method. This was happening before calling doc.Close();. Just commented the above line and the exception went away.
Use this code
private void ceratepdf()
{
using (FileStream msReport = new FileStream(Server.MapPath("~") + "/App_Data/" + DateTime.Now.Ticks + ".pdf", FileMode.Create))
{
//step 1
Document doc = new Document(PageSize.A4, 2f, 2f, 10f, 15f);
PdfWriter pdfWriter = PdfWriter.GetInstance(doc, msReport);
PdfPCell cell;
PdfPTable table = new PdfPTable(4);
cell = new PdfPCell(new Phrase("Incident Details"));
cell.Colspan = 4;
cell.HorizontalAlignment = 1; //0=Left, 1=Centre, 2=Right
cell.VerticalAlignment = 1;
table.AddCell(cell);
doc.Open();
doc.Add(table);
doc.Close();
}
}