如何通过C#/Xamarin中的Webview链接调用whatsapp? [英] How to call whatsapp through a link from webview in C#/Xamarin?

问题描述

除了Java，我发现了一些例子.

I have found some examples but for java.

链接是:

<a href="whatsapp://send?text=message">

MainPage.xaml.cs:

MainPage.xaml.cs:

public void Webnav_Navigating(object sender, WebNavigatingEventArgs e)
{
    string url = e.Url;
    if (url.StartsWith("whatsapp://"))
    {
        // what I need here?
     }   
 }

推荐答案

如果已安装WhatsApp，则可以致电Device.OpenUri:

If WhatsApp is installed, you can just call Device.OpenUri:

void WebView_Navigating(object sender, WebNavigatingEventArgs e)
{
    var url = e.Url;
    if (url.StartsWith("whatsapp://", StringComparison.InvariantCultureIgnoreCase))
    {
        try
        {
            Device.OpenUri(new Uri(e.Url));
        }
        // Can not catch Android exception type in NetStd/PCL library, so hack it...
        catch (Exception ex) when (ex.Message.StartsWith("No Activity found to handle Intent", StringComparison.InvariantCulture))
        {
            // WhatsApp not installed : Android.Content.ActivityNotFoundException: No Activity found to handle Intent
            Console.WriteLine(ex);
        }
    }
}

这篇关于如何通过C#/Xamarin中的Webview链接调用whatsapp?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！