语音弹幕设计

EPBarrageModel

NSString *barrageID;NSString *barrageUrl;NSString *headUrl;NSTimeInterval startTimestamp;NSTimeInterval duartion;NSTimeInterval endTimestamp;BOOL isMute;BOOL isPicked;NSInteger commentId;

EPAudioBarrageManager

EPBarragePositionAdapter *positionAdapterid<EPAudioBarrageManagerDeleagte> delegate

- (void)pullAudioBarrageRequest:(NSString *)videoID ;- (void)setupBarrageBgView:(UIView *)superView ;- (void)mainPlayerCurrentTime:(NSTimeInterval)currentTime totalTime:(NSTimeInterval)totalTime;

EPBarrageBackgroundView

- (void)addAnimationView:(CGFloat)pathY barrage:(EPBarrageModel *)barrageModel currentTime:(NSTimeInterval)currentTime;- (void)removeAnimationView:(EPBarrageAnimationView *)aView ;- (void)removeAllAnimationViews;

barrageDownload

- downloadBarrage- checkOverflow (防止本地缓存过多)

EPBarragePositionAdapter

NSMutableArray<EPBarrageModel *> *barrages （数据源）

- (EPBarrageModel *)calculatePosition:(EPBarrageModel *)barrage;（主要负责计算）