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

字体大小: 小 中 大

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(320,240,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