Flex中如何监测摄像头Camera对象活动以及状态事件与信息
flex中文案例:http://blog.minidx.com/2009/03/05/2228.html
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal" verticalAlign="middle" backgroundColor="white"> <mx:Script> <![CDATA[ import mx.controls.Alert; import mx.utils.StringUtil; private function videoDisplay_creationComplete():void { var camera:Camera = Camera.getCamera(); if (camera) { videoDisplay.attachCamera(camera); camera.addEventListener(ActivityEvent.ACTIVITY, camera_activity); camera.addEventListener(StatusEvent.STATUS, camera_status); } else { Alert.show("You don't seem to have a camera."); } } private function camera_activity(evt:ActivityEvent):void { var str:String = "[{0}] activating:{1}\n"; textArea.text += StringUtil.substitute(str, evt.type, evt.activating); } private function camera_status(evt:StatusEvent):void { var str:String = "[{0}] code:'{1}', level:'{2}'\n"; textArea.text += StringUtil.substitute(str, evt.type, evt.code, evt.level); switch (evt.code) { case "Camera.Muted": Alert.show("User denied access to camera."); break; case "Camera.Unmuted": Alert.show("User allowed access to camera."); break; } } ]]> </mx:Script> <mx:VideoDisplay id="videoDisplay" creationComplete="videoDisplay_creationComplete();" width="160" height="120" /> <mx:TextArea id="textArea" editable="false" width="100%" height="{videoDisplay.height}" wordWrap="false" verticalScrollPolicy="on" /> </mx:Application>?