TextTrackImpl

如果要同时支持JS和原生TextTracks，需要为两者分别提供实现。现在看起来很混乱。

实现

• TextTrack

构造函数

new TextTrackImpl()

new TextTrackImpl(mediaPlayer, mediaElement, textTrack, kind, label, language, uri, mimeType): TextTrackImpl

参数

mediaPlayer

MediaPlayer

mediaElement

NativeInterfaces.NativeMediaElement | null

textTrack?

NativeInterfaces.NativeTextTrack | undefined

kind?

TextTrackKind | undefined

label?

string | undefined

language?

string | undefined

uri?

string | undefined

mimeType?

string | undefined

返回值

TextTrackImpl

属性

NATIVE_TRACK_ID_PREFIX

static readonly NATIVE_TRACK_ID_PREFIX: string = "NATIVE_"

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JS_TRACK_ID_PREFIX

static readonly JS_TRACK_ID_PREFIX: string = "JS_"

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oncuechange

oncuechange: EventHandler = (e?: Event) => { LogUtil.debug(TextTrackImpl: ${this._id} Default Handler event : ` + e?.type) }`

方法

addCue()

addCue(cue: TextTrackCue): void

参数

cue

TextTrackCue

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addEventListener()

addEventListener(type: string, listener: EventListener, options?: boolean | AddEventListenerOptions | undefined): void

参数

type

string

listener

EventListener

options?

boolean | AddEventListenerOptions | undefined

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dispatchEvent()

dispatchEvent(event: Event): boolean

处理cuechange事件

参数

event

Event

返回值

boolean

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refresh()

refresh(): void

---

removeCue()

removeCue(cue: TextTrackCue): void

参数

cue

TextTrackCue

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removeEventListener()

removeEventListener(type: string, listener: EventListener, options?: boolean | EventListenerOptions | undefined): void

参数

type

string

listener

EventListener

options?

boolean | EventListenerOptions | undefined

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setTextTrackList()

setTextTrackList(trackList: any): void

参数

trackList

any

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Last updated: 2026年7月31日