Question

我正在处理我的第一个Xamarin.IOS应用程序，我想检索webview中加载的HTML页面。为了实现这一目标，我已经引用了Google和Xamarin论坛并实施了以下步骤，但仍未触发LoadFinished事件。任何人都可以帮我解决这个问题。

使AppDelegate从XFormsApplicationDelegate扩展
在FinishedLaunching事件中，我有以下一组代码

public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
{
// Override point for customization after application launch.

// If not required for your application you can safely delete this method

SetIoc();
Xamarin.Forms.Forms.Init();
XLabs.Forms.XFormsAppiOS.Init();
var webHybrid = new XLabs.Forms.Controls.HybridWebViewRenderer();

                return true;
            }

            private void SetIoc()
            {
                var resolverContainer = new SimpleContainer();

                resolverContainer.Register<IDevice>(t => AppleDevice.CurrentDevice)
                                    .Register<IJsonSerializer, SystemJsonSerializer>()
                                    .Register<IDependencyContainer>(t => resolverContainer);
                Resolver.SetResolver(resolverContainer.GetResolver());
            }

MyViewController具有以下代码

public partial class MainViewController : UIViewController
{
HybridWebView webview;

        protected MainViewController(IntPtr handle) : base(handle)
        {
            // Note: this .ctor should not contain any initialization logic.
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            var webHybrid = new HybridWebViewRenderer();
            webview = new HybridWebView();
        }

        void Webview_LoadFinished(object sender, EventArgs e)
        {
            this.webview.RegisterCallback("dataCallback", s =>
                {
                    System.Diagnostics.Debug.WriteLine(s);
                    this.webview.LoadFinished -= Webview_LoadFinished;
                    this.webview.RemoveCallback("dataCallback");
                });

            this.webview.InjectJavaScript("Native(\"dataCallback\", document.getElementsByTagName('html')[0].innerHTML);");
        }

        private void GalleryButtonTouchUpAsync(object sender, EventArgs e)
        {
            webview.Uri = new Uri("http://google.co.in");
            webview.LoadFinished += Webview_LoadFinished;   
        }
    }

你能帮助我找不到的东西吗？

HybridWebView未触发LoadFinished事件

0 个答案: