AVPlayerCallback的state是一个枚举类型,用于描述播放器的状态。详见:https://gitee.com/openharmony/multimedia\_player\_framework/blob/master/interfaces/inner\_api/native/player.h
AVPlayerCallback的state是一个枚举类型,用于描述播放器的状态。详见:https://gitee.com/openharmony/multimedia\_player\_framework/blob/master/interfaces/inner\_api/native/player.h