可以使用Xcode的"New On-Demand Resource Tag"向应用程序项目中添加On-Demand资源。示例代码如下：

func getOnDemandResourceHandler(tag: String) -> () -> Void { let handler = { guard let resourcePath = Bundle.main.path(forResource: tag, ofType: "mp4") else { print("Unable to find resource (tag).mp4 in main bundle") return }

    let asset = AVURLAsset(url: URL(fileURLWithPath: resourcePath))
    let playerItem = AVPlayerItem(asset: asset)

    DispatchQueue.main.async {
        let player = AVPlayer(playerItem: playerItem)
        let playerViewController = AVPlayerViewController()
        playerViewController.player = player

        self.present(playerViewController, animated: true) {
            player.play()
        }
    }
}

return handler

}

let resourceTag = "Sample On-Demand Resource" let request = NSBundleResourceRequest(tags: [resourceTag]) request.loadingPriority = NSBundleResourceRequestLoadingPriorityUrgent request.beginAccessingResources { (error: Error?) in if let error = error { print("Failed to begin accessing resources with error: (error.localizedDescription)") return }

// Use the on-demand resource here
let handler = self.getOnDemandResourceHandler(tag: resourceTag)
handler()

}