Android MediaPlayer注意事項

1.如果有用到SurfaceView，必須在mediaPlayer.prepare之前，mediaPlayer.setDisplay(surfaceHolder)，
  否則在檔案大的影片，容易產生影音分離的問題。
  EX:
  player.setDataSource(filepath);
  player.setDisplay(surfaceHolder);
  player.prepare();



Error索引：可參照網址
    MEDIA_PLAYER_STATE_ERROR        = 0,
    MEDIA_PLAYER_IDLE                           = 1 << 0,     // 1
    MEDIA_PLAYER_INITIALIZED             = 1 << 1,    // 2
    MEDIA_PLAYER_PREPARING              = 1 << 2,    // 4
    MEDIA_PLAYER_PREPARED                = 1 << 3,    // 8
    MEDIA_PLAYER_STARTED                   = 1 << 4,   // 16
    MEDIA_PLAYER_PAUSED                     = 1 << 5,   // 32
    MEDIA_PLAYER_STOPPED                    = 1 << 6,  // 64
    MEDIA_PLAYER_PLAYBACK_COMPLETE  = 1 << 7