如何修改 Xamarin.Forms 中的 WebView 以在设备上的浏览器中打开链接? [英] How can I modify a WebView in Xamarin.Forms to open links in a browser on the device?

问题描述

默认链接 () Xamarin.Forms WebViews 在 WebView 内打开.尤其是在没有原生后退按钮的 iOS 中，当从互联网打开 URL 时，行为很不方便.

By default links (<href..>) Xamarin.Forms WebViews open inside the WebView. Especially in iOS where there's no native backbutton that behavior is unconveniend when opening an Url from the internet.

如何让 Xamarin.Forms 改为让设备上的浏览器打开链接，使其至少适用于 Android、iOS 和 UWP?

How do I get Xamarin.Forms to let a browser on the device open the links instead, so that it works in at least Android, iOS and UWP?

推荐答案

没有内置属性或任何东西可以让您做到这一点.

There is no built-in property or anything that lets you do this.

然而，WebView 确实有一个 Navigating 事件处理程序.您应该能够挂钩，将用户重定向到您想要的任何内容，然后取消原始事件.像这样:

However, the WebView does have a Navigating event handler. You should be able to hook into that, redirect the user to whatever you want and then cancel the original event. Something like this:

public void WebView_Navigating(object sender, WebNavigatingEventArgs args)
{
    if (args.Url.StartsWith("file://"))
    {
        return;
    }

    Device.OpenUri(new Uri(args.Url));

    args.Cancel = true;
}

从代码中连接起来:

var webView = new WebView();
webView.Navigating += WebView_Navigating;

来自 XAML:

<WebView Navigating="WebView_Navigating" />

更多信息:

https://docs.microsoft.com/en-us/dotnet/api/xamarin.forms.webview.navigating?view=xamarin-forms

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