找不到HLS下载

Question

我尝试过以下几种方法：

func setupAssetDownload() {
    // Create new background session configuration.
    let configuration = URLSessionConfiguration.background(withIdentifier: "123124123152")

    // Create a new AVAssetDownloadURLSession with background configuration, delegate, and queue
    let downloadSession = AVAssetDownloadURLSession(configuration: configuration,
                                                assetDownloadDelegate: self,
                                                delegateQueue: OperationQueue.main)

    let url = URL(string: "https://bitdash-a.akamaihd.net/content/sintel/hls/playlist.m3u8")// HLS Asset URL
    let asset = AVURLAsset(url: url!)

    // Create new AVAssetDownloadTask for the desired asset
    let downloadTask = downloadSession.makeAssetDownloadTask(asset: asset,
                                                             assetTitle: "assetTitle",
                                                             assetArtworkData: nil,
                                                             options: nil)
    // Start task and begin download
    print(downloadTask.debugDescription)
    downloadTask?.resume()
}

并实现了

func urlSession(_ session: URLSession, assetDownloadTask: AVAssetDownloadTask, didFinishDownloadingTo location: URL) {
    print("didFinishDownloadingTo \(location.relativePath)")
    playOfflineAsset()
}

但是委托方法didFinishDownloadingTo从未被调用过。

还添加了didCompleteWithError委派，但没有成功。我的类符合AVAssetDownloadDelegate。

Answer 1

AVAssetDownloadURLSession总是与真实的设备only..So一起工作，在你的情况下，它似乎你是在模拟器上尝试过的。

请使用Real device