flex捕获摄像头拍照

flex:

XML code

   
   

    
    <?
    
    xml version="1.0" encoding="utf-8"
    
    ?>
    
     
    
    <
    
    mx:Application 
    
    xmlns:mx
    
    ="http://www.adobe.com/2006/mxml"
    
     layout
    
    ="absolute"
    
     width
    
    ="388"
    
     height
    
    ="222"
    
     creationComplete
    
    ="initApp()"
    
    >
    
     
    
    <
    
    mx:Style
    
    >
    
     Alert{font-size:12px;} 
    
    </
    
    mx:Style
    
    >
    
     
    
    <
    
    mx:Script
    
    >
    
     
    
    <![CDATA[
    
     import mx.graphics.codec.JPEGEncoder; import mx.events.CloseEvent; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; import mx.controls.Alert; private static const DEFAULT_CAMERA_WIDTH:Number = 160; //摄像头显示宽度 private static const DEFAULT_CAMERA_HEIGHT:Number = 120; //摄像头显示高度 private var m_camera:Camera; //定义一个摄像头 private var m_localVideo:Video; //定义一个本地视频 private var m_pictureBitmapData:BitmapData //定义视频截图 [Bindable] private var m_pictureData:String; [Bindable] private var m_pictureBitmap:Bitmap; private function initApp():void { /* t_btn_Shooting.enabled = false; t_ban_Save.enabled = false; */ initCamera(); } private function initCamera():void { m_camera = Camera.getCamera(); if(m_camera != null) { m_camera.addEventListener(StatusEvent.STATUS,__onCameraStatusHandler); m_camera.setMode(DEFAULT_CAMERA_WIDTH,DEFAULT_CAMERA_HEIGHT,30); m_localVideo = new Video(); m_localVideo.width = DEFAULT_CAMERA_WIDTH; m_localVideo.height = DEFAULT_CAMERA_HEIGHT; m_localVideo.attachCamera(m_camera); t_vd_Video.addChild(m_localVideo); } else { Alert.show("没有找到摄像头，是否重新查找。","提示：",Alert.OK|Alert.NO,this,__InitCamera); return; } } //拍照按钮事件，进行视频截图 private function SnapshotPicture():void { m_pictureBitmapData = new BitmapData(DEFAULT_CAMERA_WIDTH,DEFAULT_CAMERA_HEIGHT); m_pictureBitmapData.draw(t_vd_Video,new Matrix()); m_pictureBitmap = new Bitmap(m_pictureBitmapData); t_img_Picture.addChild(m_pictureBitmap); t_panel_Picture.visible = true; t_ban_Save.enabled = true; } //保存按钮事件，保存视频截图 private var file:FileReference = new FileReference(); private function SavePicture():void { var jpg:JPEGEncoder = new JPEGEncoder(); var ba:ByteArray = jpg.encode(m_pictureBitmapData); file.save(ba,'1.jpg'); /* var copyfile:FileReference = file; var request: URLRequest = new URLRequest(); request.url="upphotoservlet"; request.method = "post"; copyfile.upload(request); // 将拍摄的照片上传至服务器 */ } //检测摄像头权限事件 private function __onCameraStatusHandler(event:StatusEvent):void { if(!m_camera.muted) { t_btn_Shooting.enabled = true; } else { Alert.show("无法链接到活动摄像头，是否重新检测。",__InitCamera); } m_camera.removeEventListener(StatusEvent.STATUS,__onCameraStatusHandler); } //当摄像头不存在，或连接不正常时重新获取 private function __InitCamera(event:CloseEvent):void { if(event.detail == Alert.OK) { initApp(); } } //WebService保存图片成功事件 private function __onSavePictureResult(event:ResultEvent):void { //trace(event.result); if(event.result.toString() == "保存成功") { Alert.show(event.result.toString(),"提示",Alert.OK,__onAlertCloseHandler); } else { Alert.show(event.result.toString(),Alert.OK); } } //保存图片成功后的弹出窗口确认事件 private function __onAlertCloseHandler(event:CloseEvent):void { if(event.detail == Alert.OK) { //trace("转向页面"); } } 
    
    ]]>
    
     
    
    </
    
    mx:Script
    
    >
    
     
    
    <
    
    mx:Panel 
    
    x
    
    ="10"
    
     y
    
    ="10"
    
     width
    
    ="180"
    
     height
    
    ="200"
    
     layout
    
    ="absolute"
    
     title
    
    ="视频拍照"
    
     fontSize
    
    ="12"
    
    >
    
     
    
    <
    
    mx:VideoDisplay 
    
    id
    
    ="t_vd_Video"
    
     width
    
    ="160"
    
     height
    
    ="120"
    
    />
    
     
    
    <
    
    mx:ControlBar 
    
    horizontalAlign
    
    ="right"
    
    >
    
     
    
    <
    
    mx:Button 
    
    id
    
    ="t_btn_Shooting"
    
     label
    
    ="拍照"
    
     click
    
    ="SnapshotPicture()"
    
    />
    
     
    
    </
    
    mx:ControlBar
    
    >
    
     
    
    </
    
    mx:Panel
    
    >
    
     
    
    <
    
    mx:Panel 
    
    id
    
    ="t_panel_Picture"
    
     x
    
    ="198"
    
     y
    
    ="10"
    
     width
    
    ="180"
    
     height
    
    ="200"
    
     layout
    
    ="absolute"
    
     title
    
    ="拍照图片"
    
     fontSize
    
    ="12"
    
     visible
    
    ="false"
    
    >
    
     
    
    <
    
    mx:Image 
    
    id
    
    ="t_img_Picture"
    
     x
    
    ="0"
    
     y
    
    ="0"
    
     width
    
    ="160"
    
     height
    
    ="120"
    
    />
    
     
    
    <
    
    mx:ControlBar 
    
    horizontalAlign
    
    ="right"
    
    >
    
     
    
    <
    
    mx:Button 
    
    id
    
    ="t_ban_Save"
    
     label
    
    ="保存"
    
     click
    
    ="SavePicture()"
    
     
    
    />
    
     
    
    </
    
    mx:ControlBar
    
    >
    
     
    
    </
    
    mx:Panel
    
    >
    
     
    
    </
    
    mx:Application
    
    >