MediaElement

套件	org.osmf.media
類別	public class MediaElement
繼承	MediaElement EventDispatcher Object
子類別	BeaconElement, CompositeElement, HTMLElement, LoadableElementBase, ProxyElement

語言版本:

ActionScript 3.0

產品版本:

OSMF 1.0

執行階段版本:

Flash Player 10, AIR 1.5

A MediaElement represents a unified media experience. It may consist of a simple media item, such as a video or a sound. Different instances (or subclasses) can represent different types of media. A MediaElement may also represent a complex media experience composed of multiple items, such as videos, ad banners, SWF overlays, background page branding, etc.

Programmatically, a media element encapsulates a set of media traits and a state space. The media traits represent the capabilities of the media element and are dynamic in nature. At one moment in time a media element might be seekable, at another moment it might not be. For example, this could occur if the media element is a video sequence containing unskippable ads.

A media element operates on a media resource. For example, if the media element represents a video player, the media resource might encapsulate a URL to a video stream. If the media element represents a complex media composition, the media resource URL might be a document that references the multiple resources used in the media composition.

相關 API 元素

MediaTraitBase
MediaResourceBase

公用屬性

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	屬性		定義自
		constructor : Object 類別物件的參照或是特定物件實體的建構函數。	Object
		container : IMediaContainer [唯讀] The media container that this element uses.	MediaElement
		metadataNamespaceURLs : Vector.<String> [唯讀] A Vector containing the namespace URLs for all Metadata objects stored within this MediaElement.	MediaElement
		resource : MediaResourceBase The media resource that this media element operates on.	MediaElement
		traitTypes : Vector.<String> [唯讀] A Vector of MediaTraitType values representing the trait types on this media element.	MediaElement

公用方法

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	方法		定義自
		MediaElement() Constructor.	MediaElement
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void 會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。	EventDispatcher
		addMetadata(namespaceURL:String, metadata:Metadata):void Adds a Metadata object to this MediaElement under the specified namespace URL.	MediaElement
		dispatchEvent(event:Event):Boolean 會將事件傳送到事件流程。	EventDispatcher
		getMetadata(namespaceURL:String):Metadata Returns the Metadata object that is stored under this MediaElement with the specified namespace URL.	MediaElement
		getTrait(type:String):org.osmf.traits:MediaTraitBase Returns the media trait of the specified type.	MediaElement
		hasEventListener(type:String):Boolean 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	EventDispatcher
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		hasTrait(type:String):Boolean Determines whether this media element has a media trait of the specified type.	MediaElement
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	Object
		propertyIsEnumerable(name:String):Boolean 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	EventDispatcher
		removeMetadata(namespaceURL:String):Metadata Removes the Metadata object that was stored under this MediaElement with the specified namespace URL.	MediaElement
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 為迴圈作業設定動態屬性的可用性。	Object
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		valueOf():Object 會傳回指定之物件的基本值。	Object
		willTrigger(type:String):Boolean 檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。	EventDispatcher

保護方法

	方法		定義自
		addTrait(type:String, instance:org.osmf.traits:MediaTraitBase):void Adds a new media trait to this media element.	MediaElement
		removeTrait(type:String):org.osmf.traits:MediaTraitBase Removes a media trait from this media element.	MediaElement
		setupTraits():void Sets up the traits for this media element.	MediaElement

事件

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	摘要	定義自
activate	[廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。	EventDispatcher
containerChange	Dispatched when the element's container property changed.	MediaElement
deactivate	[廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。	EventDispatcher
mediaError	Dispatched when an error which impacts the operation of the media element occurs.	MediaElement
mediaInfo	Dispatched when a info which impacts the operation of the media element is available.	MediaElement
metadataAdd	Dispatched when a Metadata object has been added to this media element.	MediaElement
metadataRemove	Dispatched when a Metadata object has been removed from this media element.	MediaElement
traitAdd	Dispatched when a trait is added to the media element.	MediaElement
traitRemove	Dispatched when a trait is removed from the media element.	MediaElement

屬性詳細資訊

metadataNamespaceURLs

屬性

metadataNamespaceURLs:Vector.<String> [唯讀]

A Vector containing the namespace URLs for all Metadata objects stored within this MediaElement.

實作
public function get metadataNamespaceURLs():Vector.<String>

建構函式詳細資料

方法詳細資訊

事件詳細資訊

法律聲明 | 線上隱私權政策

MediaElement - AS3 OSMF

套件x

語言元素

附錄

套件 org.osmf.media

container

metadataNamespaceURLs

resource

traitTypes

addMetadata

addTrait

getMetadata

getTrait

hasTrait

removeMetadata

removeTrait

setupTraits

containerChange

mediaError

mediaInfo

metadataAdd

metadataRemove

traitAdd

traitRemove

	`namespaceURL:String` — The namespace URL used to store the Metadata.

	`metadata:Metadata` — The Metadata to add.

	`type:String` — The MediaTraitType for the media trait to add.

	`instance:org.osmf.traits:MediaTraitBase` — The media trait to add.