Question

我正在尝试在JSQMessagesViewController的子类中播放视频，但是它没有开始播放onClick事件。我正在从firebase下载视频，然后通过附加唯一引用 -LK7WSGtGAQ2anpDxkCQ 在设备上写入数据。请参阅下面的打印说明，以获取完整路径。

  //response to collection view tap events
   //called every time we type on a message
   override func collectionView(_ collectionView: JSQMessagesCollectionView!, didTapMessageBubbleAt indexPath: IndexPath!) {
    let message = messages[indexPath.item]

    print("message type is \(message.type) and message media uid is \(message.mediaMessage?.mediaUID)")

    if message.type == MessageType.image {
      let jsqMessage = jsqMessages[indexPath.item]
      let mediaItem = jsqMessage.media as! JSQPhotoMediaItem
      let photos = IDMPhoto.photos(withImages: [mediaItem.image])
      let browser = IDMPhotoBrowser(photos: photos)
      self.present(browser!, animated: true, completion: nil)
}

 if message.type == MessageType.video {

    let jsqMessage = jsqMessages[indexPath.item]
        if jsqMessage.isMediaMessage {

            if let mediaItem = jsqMessage.media as? JSQVideoMediaItem {

                print("mediaItem.fileURL is \(mediaItem.fileURL)")
               let player = AVPlayer(url: mediaItem.fileURL)
                let playerViewController = AVPlayerViewController()
                playerViewController.player = player
                self.present(playerViewController, animated: true) {
                    playerViewController.player!.play()
                }
            }
        }
    }

  }
}//end of extension

mediaItem.fileURL是可选（file：/// Users / bogdanbarbulescu / Library / Developer / CoreSimulator / Devices / 7FB42206-997D-4AC2-B0BD-CEE2E22DAFBE / data / Containers / Data / Application / 8F17DF31-16B1-4B27-ACB2-015AA55D8979 / Documents /- LK7WSGtGAQ2anpDxkCQ）

更新
将.MOV附加到上面的url后，现在可以播放视频了，但是播放时没有声音。该如何解决？

Answer 1

问题是当我将数据保存到磁盘上时，我没有将.MOV扩展名附加到路径的末尾，因此AVPlayer无法播放视频。

之前： mediaItem.fileURL是file：/// Users / bogdanbarbulescu / Library / Developer / CoreSimulator / Devices / 7FB42206-997D-4AC2-B0BD-CEE2E22DAFBE / data / Containers / Data / Application / 8F17DF31-16B1-4B27-ACB2-015AA55D8979 / Documents / -LK7WSGtGAQ2anpDxkCQ

之后：文件：/// Users / bogdanbarbulescu / Library / Developer / CoreSimulator / Devices / 7FB42206-997D-4AC2-B0BD-CEE2E22DAFBE / data / Containers / Data / Application / 8F17DF31-16B1-4B27-ACB2-015AA55D8979 /文档/-LK7WSGtGAQ2anpDxkCQ.MOV

AVPlayer无法播放视频

1 个答案: