Adds an external subtitle source file (from the provided input stream.) Note that a single external subtitle source may contain multiple or no supported tracks in it.
新增一個外部字幕原始檔(InputStream引數)注意，單個外部字幕原始檔可能包含多個或不支援的字幕流。

Manually render this view (and all of its children) to the given Canvas.
手動將此檢視 (及其所有子項) 渲染到指定的Canvas。

Return the class name of this object to be used for accessibility purposes.
返回此物件的類名，用於輔助功能目的。

Get the audio session id for the player used by this VideoView.
獲取該VideoView使用的播放器的音訊會話id。

Implement this method to handle touch screen motion events.
實現此方法，以處理觸控式螢幕的MotionEvent。

Implement this method to handle trackball motion events.
實現此方法，以處理滾跡球的MotionEvent。

Register a callback to be invoked when the end of a media file has been reached during playback.
註冊一個回撥，當媒體檔案播放到末尾時呼叫。

Register a callback to be invoked when an error occurs during playback or setup.
註冊一個回撥，當播放或設定期間發生錯誤時呼叫。

Register a callback to be invoked when an informational event occurs during playback or setup.
註冊一個回撥，當播放或設定期間發生訊息事件時呼叫。

Register a callback to be invoked when the media file is loaded and ready to go.
註冊一個回撥，當媒體檔案被載入並準備播放時呼叫。

Sets video path.
設定視訊檔案的路徑。

Sets video URI using specific headers.
設定視訊的URI，其使用指定的頭部。

Sets video URI.
設定視訊的URI。