Question

我正在构建一个包含不同外部和内部（osmf）播放器对象的自定义视频播放器。我的播放器代码在我的库中单独的as3组件。直接在mxml中添加播放器对象会使swf文件大小超出需要的范围，因为所有obejct都已添加（但未加载）

<osmf:OSMFPlayer id="playerOSMF" depth="1" />

如何将as3组件动态添加到舞台上？

我的mxml包含一个主脚本

<fx:Script source="main.as" />

当我在applicationComplete（）

上添加init（）函数时

public var player:OSMFPlayer;

private function init():void {
  player = new OSMFPlayer();
  addChild(player);
}

这不起作用，我已经尝试了我能想到的一切，有人得到了一些有用的建议吗？

Answer 1

您无法直接将OSMFPlayer添加到舞台。

请参阅以下代码。

//flash imports
import flash.display.Sprite ; 
import flash.events.MouseEvent ;
//osmf imports
import org.osmf.containers.MediaContainer ; 
import org.osmf.layout.LayoutMetadata ; 
import org.osmf.media.MediaPlayer ; 
import org.osmf.media.MediaElement ; 
import org.osmf.media.MediaFactory ; 
import org.osmf.media.DefaultMediaFactory ; 
import org.osmf.media.URLResource ; 
import org.osmf.elements.SerialElement ; 

//point to two separate pieces of media
const MEDIA_URL:String  = "myVideo.mp4"; 
const VIDEO_WIDTH:int = 1024;
const VIDEO_HEIGHT:int = 768;
//variable declarations
var mediaFactory:MediaFactory; 
var serialElement:SerialElement; 
var mediaElement:MediaElement; 
var mediaPlayer:MediaPlayer; 
var mediaContainer:MediaContainer; 
var layout:LayoutMetadata ;

function loadPlayer() 
{ 
    //create a new DefaultMediaFactory
    mediaFactory = new DefaultMediaFactory(); 
    //use the mediaFactory to create two new MediaElement objects
    mediaElement = mediaFactory.createMediaElement(new URLResource(MEDIA_URL)); 
    //create, size and position two LayoutMetadata objects
    layout1 = new LayoutMetadata(); 
    layout1.width = VIDEO_WIDTH; 
    layout1.height = VIDEO_HEIGHT; 
    layout1.x = 0; 
    layout1.y = 0; 
    //create a new SerialElement
    serialElement = new SerialElement () ; 
    //tie each LayoutMetadata object to one of the MediaElement objects
    mediaElement.addMetadata(LayoutMetadata.LAYOUT_NAMESPACE, layout); 
    //create a new MediaPlayer instance
    mediaPlayer = new MediaPlayer(); 
    //set the mediaPlayer not to begin playback by default
    mediaPlayer.autoPlay = false; 
    //set the media property of the mediaPlayer to the serialElement
    mediaPlayer.media = serialElement; 
    //create a new MediaContainer
    mediaContainer = new MediaContainer(); 
    //add both MediaElement instances to the serialElement
    serialElement.addChild ( mediaElement ) ;
    //add the serialElement to the MediaContainer
    mediaContainer.addMediaElement(serialElement); 
    //add the mediaContainer to the display list
    addChild(mediaContainer); 
    //listen for the click event on the stage
    stage.addEventListener ( MouseEvent.CLICK , onPlayToggle ) ;
} 

function onPlayToggle ( evt : MouseEvent ) : void
{
    //if the mediaPlayer is running
    if ( mediaPlayer.playing )
    //pause the mediaPlayer
    mediaPlayer.pause ( ) ;
    else 
    //resume the mediaPlayer
    mediaPlayer.play ( ) ;
}

loadPlayer();

我建议您阅读OSMF文档。

OSMF

并参考Adobe官方示例代码。

OSMF Market Place

mxml动态添加自定义as3组件到舞台

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