Hi flex,
Hey r u doing file browsing in your application .. Becoz i
also want to this in my application .. Can u give me API reference for
that ..
Pl help me .. Thanks in advance..
Regards,
Akshay
On Feb 26, 3:46 pm, flex <[email protected]> wrote:
> hi all,
> i did the following code which is running properlly,but i want 1 more
> thing which i'm notgetting how to do it.
> User can save img at any folder but once he did this, next time when
> user is browse to save again , i want to show last save folder at
> browse by user.But here it always going to default path when user
> browse to save as image.
>
> <?xml version="1.0" encoding="utf-8"?>
> <mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml";
> layout="vertical" backgroundGradientAlphas="[1.0, 1.0]"
> backgroundGradientColors="[#FFFFFF, #C0C0C0]"
> width="400" height="350"
> creationComplete="init()">
> <mx:Script>
> <![CDATA[
> import mx.controls.Alert;
> import mx.core.Application;
> import flash.display.BitmapData;
> import mx.graphics.codec.JPEGEncoder;
> import mx.graphics.codec.PNGEncoder;
> import mx.collections.ArrayCollection;
> import mx.core.UIComponent;
>
> //Format to save the image
> public static const FORMAT_JPEG:uint = 0x00;
> public static const FORMAT_PNG:uint = 0x01;
>
> //Extensions for the file
> private static const EXT_JPEG:String = ".jpg";
> private static const EXT_PNG:String = ".png";
>
> //Choose the a directory in user's document folder to
> store the
> images
> //private static const IMAGE_FOLDER:String =
> "SaveWebcam/images/";
> private var IMAGE_FOLDER:String ;
>
> //Inits the webcam
> private function init():void{
>
> }
>
> //Saves the image snapshot in specified format
> private function
> saveImage(comp:DisplayObject,format:uint):void{
> //Bitmapdata from the component to take
> snapshot
> var bmpd:BitmapData = new
> BitmapData(comp.width,comp.height);
> bmpd.draw(comp);
> //Bytearray of the final image
> var imgByteArray:ByteArray;
> //extension to save the file
> var ext:String;
> //verify specified format and use the correct
> encoder to produce
> the bytearray
> switch(format){
> case FORMAT_JPEG:
> ext = EXT_JPEG;
> var jpgenc:JPEGEncoder = new
> JPEGEncoder(80);
> imgByteArray =
> jpgenc.encode(bmpd);
> break;
> case FORMAT_PNG:
> ext = EXT_PNG;
> var pngenc:PNGEncoder = new
> PNGEncoder();
> imgByteArray =
> pngenc.encode(bmpd);
> break;
> }
> //gets a reference to a new empty image file
> var fl:File = getNewImageFile(ext);
> fl.addEventListener(Event.SELECT,function()
> {dirSelected
> (fl,imgByteArray);},false);
> //fl.addEventListener(Event.SELECT,
> dirSelected);
> fl.browseForSave('a.png');
> //fl.resolvePath('D:/');
> //Use a FileStream to save the bytearray as
> bytes to the new file
> var fs:FileStream = new FileStream();
> try{
> //open file in write mode
> fs.open(fl,FileMode.WRITE);
> //write bytes from the byte array
> fs.writeBytes(imgByteArray);
> //close the file
> fs.close();
> }catch(e:Error){
> trace(e.message);
> }
> }
>
> function
> dirSelected(fl:File,imgByteArray:ByteArray):void {
> var fs:FileStream = new FileStream();
> try{
> fs.open(fl,FileMode.WRITE);
> fs.writeBytes(imgByteArray);
> fs.close();
> }catch(e:Error){
> trace(e.message);
> }
>
> }
>
> //Returns a unique new image file reference
> //with specified extension
> private var file:File;
> private function getNewImageFile(ext:String):File{
> //Create a new unique filename based on
> date/time
> var fileName:String =
> "image"+getNowTimestamp()+ext;
> var fl:File =
> File.documentsDirectory.resolvePath(IMAGE_FOLDER
> +fileName);
> if(fl.exists){
> //if exists , tries to get a new one
> using recursion
> return getNewImageFile(ext);
> }
> return fl;
> }
> //Returns a string in the format
> //200831415144243
> private function getNowTimestamp():String{
> var d:Date = new Date();
> var tstamp:String =
> d.getFullYear().toString()+d.getMonth()
> +d.getDate()+d.getHours()+d.getMinutes()+d.getSeconds()
> +d.getMilliseconds();
> return tstamp;
> }
>
> //Handler for the save button click
> private function onClickSave():void{
> saveImage(camVideo,FORMAT_PNG);
> }
> ]]>
> </mx:Script>
>
> <mx:Label text="Save your picture" fontSize="14" color="#000000"
> fontWeight="bold"/>
> <!--<mx:VideoDisplay id="camVideo2" width="320" height="240" />-->
> <mx:Canvas id="camVideo" width="100%" height="100%" >
> <mx:Label text="canvas" />
> </mx:Canvas>
> <mx:Button id="save_btn" label="Click to save a snapshot" width="181"
> click="onClickSave()"/>
>
> </mx:WindowedApplication>
>
> thank you
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