video - WKWebView 视频不能内联播放

Question

所以根据 Apple 的文档:https://developer.apple.com/documentation/webkit/wkwebviewconfiguration/1614793-allowsinlinemediaplayback

我应该能够使用 Swift 4 轻松内联播放视频，但无论我做什么，它总是会在 native 视频播放器中打开视频。

这是我的代码:

convenience init(style: UITableViewCell.CellStyle, reuseIdentifier: String?, url: String = "", title: String) {
        self.init(style: style, reuseIdentifier: reuseIdentifier)
        self.videoTitleLabel.text = title
        self.urlToVideo = url
        setUpUI()
        setUpLayout()
        webView.backgroundColor = .smalt
        webView.translatesAutoresizingMaskIntoConstraints = false
        webView.configuration.allowsInlineMediaPlayback = true
        webView.configuration.preferences.javaScriptEnabled = true
        webView.load(URLRequest(url: URL(string: self.urlToVideo + "?playsinline")! ))
    }

我做错了什么？

Answer 1

通过查看人们报告的其他一些问题以及 Apple 文档中的详细信息，我认为问题在于必须在创建 WKWebView 之前设置 WKWebViewConfiguration。

来自苹果文档:

Using the WKWebViewConfiguration class, you can determine how soon a webpage is rendered, how media playback is handled, the granularity of items that the user can select, and many other options.

WKWebViewConfiguration is only used when a web view is first initialized. You cannot use this class to change the web view's configuration after it has been created.

这与苹果提供的使用 WKWebView (https://developer.apple.com/documentation/webkit/wkwebview) 的示例一致，您可以在其中看到 WKWebViewConfiguration 被传递给 WKWebView 设置。我在 playinline 中添加了作为您案例的示例。

import UIKit
import WebKit
class ViewController: UIViewController, WKUIDelegate {
    
    var webView: WKWebView!
    
    override func loadView() {
        let webConfiguration = WKWebViewConfiguration()
        webConfiguration.allowsInlineMediaPlayback = true //** Added as an example for your case
        webView = WKWebView(frame: .zero, configuration: webConfiguration)
        webView.uiDelegate = self
        view = webView
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let myURL = URL(string:"https://www.apple.com")
        let myRequest = URLRequest(url: myURL!)
        webView.load(myRequest)
    }}

如果随后无法设置该属性以避免这种混淆，这似乎更有意义，但从文档中可以看出这是它的工作原理。