flex图片截取保存本地

<?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.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 static const DEFAULT_WEBSERVICE_URL:String = "http://localhost:1888/Web/TestWebService.asmx?WSDL"; //WebService地址 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; private function initApp():void { t_btn_Shooting.enabled = false; t_ban_Save.enabled = false; initCamera(); } //初始化摄像头 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()); var m_pictureBitmap:Bitmap = 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 //通过WebService保存 private function SavePicture():void { m_pictureData = ""; for(var i:int = 0; i < DEFAULT_CAMERA_WIDTH; i++) { for(var j:int = 0; j < DEFAULT_CAMERA_HEIGHT; j++) { if(m_pictureData.length > 0) { m_pictureData += "," + m_pictureBitmapData.getPixel32(i,j).toString(); } else { m_pictureData = m_pictureBitmapData.getPixel32(i,j).toString(); } } } t_ws_SavePicture.SavePicture.send(); } //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。","提示：",Alert.OK|Alert.NO,this,__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,this,onAlertCloseHandler); } else { Alert.show(event.result.toString(),"提示",Alert.OK); } } //连接WebService失败事件 private function __onSavePictureFault(event:FaultEvent):void { //Alert.show(event.fault.toString(),"提示",Alert.OK); Alert.show("连接WebService失败。","提示",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:WebService id="t_ws_SavePicture" showBusyCursor="true" wsdl="{DEFAULT_WEBSERVICE_URL}" useProxy="false" result="__onSavePictureResult(event)" fault="__onSavePictureFault(event)"> <mx:operation name="SavePicture"> <mx:request> <pic_width>{DEFAULT_CAMERA_WIDTH}</pic_width> <pic_height>{DEFAULT_CAMERA_HEIGHT}</pic_height> <bitmap_data>{m_pictureData}</bitmap_data> </mx:request> </mx:operation> </mx:WebService> <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>