捕获Camera并保存图片到本地(照相功能) -samhy

 
 Flex博文  
捕获Camera并保存图片到本地(照相功能) -samhy
作者:admin 日期:2010-07-12
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捕获Camera并保存图片到本地(照相功能)
这几天对Camera类进行了一下规整，并利用JPGEncoder类实现了照相的功能,代码如下： 
 

XML/HTML代码
import flash.media.Camera;    
import flash.system.Security;    
import flash.events.StatusEvent;     
import flash.text.TextField;    
import flash.events.ActivityEvent;     
import flash.events.MouseEvent;     
import flash.utils.Timer;     
import flash.events.TimerEvent;     
import flash.net.FileReference;     
import com.adobe.images.JPGEncoder;     
//Security.showSettings(SecurityPanel.PRIVACY);    
//打开安全设置     
var timer:Timer = new Timer(100);    
timer.addEventListener(TimerEvent.TIMER,gettimer);     
var txt:TextField = new TextField();     
addChild(txt);     
btn.visible = false;     
var vid:Video;     
var camera:Camera = Camera.getCamera();     
var bitdata:BitmapData;     
var bitmap:Bitmap;     
if(camera == null){ txt.text = ("没有摄像头");     
btn.visible = false; } else { txt.text = ("PC上面有摄像头");     
Connectting();     
}     
function Connectting(){     
vid = new Video(320,240);    
vid.attachCamera(camera);    
vid.x = 0;     
vid.y = 50;     
addChild(vid);     
camera.addEventListener(StatusEvent.STATUS,getStatus);//查看用户是否允许访问摄像头     
}    
function getStatus(e:StatusEvent):void{     
trace(e.code);     
if(e.code == "Camera.Muted"){     
txt.text = ("用户拒绝访问摄像头");     
btn.visible = false;     
} else{     
txt.text = ("用户允许访问摄像头");     
timer.start();     
camera.addEventListener(ActivityEvent.ACTIVITY,getactivity);//查看摄像头的活动    
camera.setQuality(0,100);     
camera.setMode(320,240,24,true);//保证画质     
btn.visible = true;     
btn.addEventListener(MouseEvent.CLICK,saveImg);     
}     
}     
function gettimer(e:TimerEvent):void{     
SXTSL.text = String(camera.currentFPS);     
WZZP.text = String(camera.keyFrameInterval);     
SPYS.text = String(camera.loopback);     
IMGQ.text = String(camera.quality);     
}     
function getactivity(e:ActivityEvent):void{     
ML.text = String(camera.motionLevel);     
XYL.text = String(camera.activityLevel);     
}     
function saveImg(e:MouseEvent):void{     
bitdata= new BitmapData(320,true,0x000000);    
bitdata.draw(vid);     
var jpg:JPGEncoder = new JPGEncoder(100);     
var file:FileReference = new FileReference();     
var byteArray:ByteArray = jpg.encode(bitdata);     
file.save(byteArray,"libufan.jpg");//如果要改文件名,请在修改的文件名后面加.jpg     
}    
来源于：http://www.as3hope.com/read.php?3