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我有一个stageVideo类，我使用它在平板电脑上播放视频，但每次播放视频时，平板电脑屏幕会闪烁几次（变黑，然后出现约四次左右），我在想什么造成这种情况。它在切换到视频播放视图时执行此操作。视频的网址传递到视频mxml视图。我正在使用flex 4.6和Android平板电脑（EEE变压器素数）。Android平板电脑上的StageVideo闪烁？
package ios
{
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageQuality;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.events.NetStatusEvent;
import flash.events.StageVideoAvailabilityEvent;
import flash.events.StageVideoEvent;
import flash.geom.Rectangle;
import flash.media.StageVideo;
import flash.media.StageVideoAvailability;
import flash.media.Video;
import flash.net.NetConnection;
import flash.net.NetStream;
[Bindable]
public class iOSStageVideo extends Sprite
{
private var videoPath:String;
private var videoWidth:Number;
private var videoHeight:Number;
private var _sv:StageVideo;
private var _vd:Video;
private var _obj:Object;
private var _ns:NetStream;
public function iOSStageVideo(path:String , w:Number , h:Number):void
{
videoPath = path;
videoWidth = w;
videoHeight = h;
addEventListener(Event.ADDED_TO_STAGE, onAddedToStage);
}
//stage is ready
private function onAddedToStage(e:Event):void
{
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
var nc:NetConnection = new NetConnection();
nc.connect(null);
_ns = new NetStream(nc);
_obj = new Object();
_ns.client = _obj; _ns.bufferTime = 2;
_ns.client = _obj;
_obj.onMetaData = MetaData;
_sv = stage.stageVideos[0];
_sv.viewPort = new Rectangle(0, 42, videoWidth , videoHeight);
_sv.attachNetStream(_ns);
playVideo();
}
//video is ready, play it
//public, can be called externally
public function playVideo():void{
_ns.play(videoPath);
_ns.addEventListener(NetStatusEvent.NET_STATUS, videoStatus);
}
//required metadata for stagevideo, even if not used
private function MetaData(info:Object):void{ }
//get video status
private function videoStatus(e:NetStatusEvent):void{
switch(e.info.code){
case "NetStream.Play.StreamNotFound":
//do something
break;
case "NetStream.Play.Start":
//do something
break
case "NetStream.Play.Stop":
//do something
trace('the video has ended');
stopVideo();
break;
case "NetStream.Buffer.Empty":
//do something
break;
case "NetStream.Buffer.Full":
//do something
break;
case "NetStream.Buffer.Flush":
//do something
break;
case "NetStream.Play.Complete":
//do something
break;
}
}
//stop and clear the video
//public, can be called externally
public function stopVideo():void{
trace("StopVideo is ran.");
_ns.close();
_ns.dispose();
dispatchEvent(new Event('videoDone', true));
}
public function stopVideoBack():void {
_ns.close();
_ns.dispose();
}
}
}
这里是我的，当影片播放完毕后
<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" title="" backgroundAlpha="0" creationComplete="init(event)" addedToStage="onAddedToStage(event)" >
<fx:Script>
<![CDATA[
import ios.iOSStageVideo;
import mx.core.UIComponent;
import mx.events.FlexEvent;
protected var path:String = new String("");
protected var backPage:String = new String("");
protected var vid:iOSStageVideo = new iOSStageVideo(path , 1280 , 720);
private var arr:Array;
//protected var vid:iOSStageVideo;
protected var container:UIComponent = new UIComponent();
protected function init(event:FlexEvent):void
{
// Sets up the back button to back to the right slide
arr = data as Array;
trace(data);
path = String(arr[0]);
backPage = String(arr[1])
//creates the video
vid = new iOSStageVideo(path , 1280 , 720);
loadVideo();
//takes out the trash when the back button is hit so the stage video is ready when the new view is loaded
stage.addEventListener("keyDown", handleButtons, false,1);
stage.addEventListener("keyUp", handleButtons, false, 1);
}
override public function createReturnObject():Object {
var returnedObject:Object = new Object();
returnedObject.myValue = arr[2];
trace("arr[2] ->" + arr[2])
return returnedObject;
}
protected function loadVideo():void
{
//loades the video
vid.addEventListener('videoDone' , videoStop);
container.width = stage.stageWidth;
container.height = stage.stageHeight;
addElement(container);
container.addChild(vid);
}
protected function playVideo(event:MouseEvent):void
{
vid.playVideo();
}
private function videoStop(e:Event):void {
//removes container
container.removeChild(vid);
removeElement(container);
navigator.popView();
}
private function removeEverything():void {
vid.stopVideoBack();
try
{
container.removeChild(vid);
removeElement(container);
}
catch(error:Error)
{
trace("error with container");
}
}
protected function onAddedToStage(event:Event):void
{
if (stage.autoOrients) {
stage.removeEventListener(StageOrientationEvent.ORIENTATION_CHANGING, orientationChanging);
stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGING, orientationChanging, false, 100, true);
}
}
private function orientationChanging(event:StageOrientationEvent):void {
event.stopImmediatePropagation();
if (event.afterOrientation == StageOrientation.ROTATED_LEFT || event.afterOrientation == StageOrientation.ROTATED_RIGHT) {
event.preventDefault();
}
}
protected function handleButtons(event:KeyboardEvent):void
{
if (event.keyCode == Keyboard.HOME) {
// Handle Home button.
}
else if (event.keyCode == Keyboard.BACK) {
// Hanlde back button.
removeEverything();
}
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
</s:View>
编译参数
-locale en_US
-swf-version=13
-target-player=11.0
-define CONFIG::LOGGING false
-define CONFIG::FLASH_10_1 true
新增更新后的代码，播放视频的视图代码有一个StageVideoEvent侦听器和简化d以一个视图（也知道中将renderMode设置为直接）
<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" title="video" backgroundAlpha="0" creationComplete="init(event)" >
<fx:Script>
<![CDATA[
import mx.core.UIComponent;
protected var videoPath:String = new String("video.mp4");
private var videoWidth:Number = 1280;
private var videoHeight:Number = 680;
private var stageVideoAvail:Boolean;
private var sv:StageVideo;
private function init(e:Event):void {
trace("ran one");
onAddedToStage();
}
private function onAddedToStage():void {
trace('test');
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
stage.addEventListener(StageVideoAvailabilityEvent.STAGE_VIDEO_AVAILABILITY, onStageVideoAvailability);
}
private function onStageVideoAvailability(e : StageVideoAvailabilityEvent) : void
{
if (e.availability == StageVideoAvailability.AVAILABLE){
stageVideoAvail = true;
initVideo();
} else {
stageVideoAvail = false;
}
}
private function initVideo():void
{
var obj:Object = new Object();
var nc:NetConnection = new NetConnection();
nc.connect(null);
var ns:NetStream = new NetStream(nc);
ns.client = obj;
if(stageVideoAvail)
{
sv = stage.stageVideos[0];
sv.addEventListener(StageVideoEvent.RENDER_STATE, onRender);
sv.attachNetStream(ns);
trace('available');
}
else
{
var vid:Video = new Video(videoWidth, 768);
addChild(vid);
vid.attachNetStream(ns);
trace('not');
}
ns.play(videoPath);
}
private function onRender(e:StageVideoEvent):void
{
sv.viewPort = new Rectangle(0, 0, videoWidth, 768);
}
public function onMetaData(e:Object):void
{
}
public function onXMPData(e:Object):void
{
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
</s:View>
在本申请的唯一的另一种观点只是具有navigator.pushView（Copyofvideo，NULL，NULL）的按钮;当按钮被点击时，屏幕闪烁，然后视频播放。
你能解决闪烁和黑屏？ – mik