Android WebView “tel:” links show web page not found Xamarin.android c#

Question

Android WebView “tel:” links show web page not found Xamarin .android c#

i am using vs 2019
this my 1st project in Xamarin.
please help me

Answer 1

Hello,​

Welcome to our Microsoft Q&A platform!

First of all, please make sure your “tel:” links type is tel:124568 simple.

Then, please check if you have created a new WebViewClient. to handle the open the dial operation.

   web_view.SetWebViewClient(new HelloWebViewClient(this));  
     
    public class HelloWebViewClient : WebViewClient  
       {  
           public HelloWebViewClient(MainActivity mainActivity)  
           {  
               MainActivity = mainActivity;  
           }  
     
           public MainActivity MainActivity { get; }  
     
            
     
           public override bool ShouldOverrideUrlLoading(WebView view, IWebResourceRequest request)  
           {  
               var uri = view.Url;  
     
                   if (uri.ToString().StartsWith("tel:"))  
               {  
                   //Handle telephony Urls  
     
                  // test ur; var url1 = "tel:124568";  
                   Intent intent = new Intent(Intent.ActionView, Uri.Parse(uri));  
                   MainActivity.StartActivity(intent);  
               }  
               else  
               {  
                       //Handle Web Urls  
                       view.LoadUrl(uri.ToString());                 
               }  
     
               return true;  
                
           }  
       }  

======================
Update===========================

Please override the ShouldOverrideUrlLoading(WebView view, string url) use this url directly, it worked as normal

   public class HelloWebViewClient : WebViewClient  
       {  
           public HelloWebViewClient(MainActivity mainActivity)  
           {  
               MainActivity = mainActivity;  
           }  
     
           public MainActivity MainActivity { get; }  
     
           public override bool ShouldOverrideUrlLoading(WebView view, string url)  
           {  
     
             //  var uri = view.Url;  
     
               if (url.ToString().StartsWith("tel:"))  
               {  
                   //Handle telephony Urls  
     
                   // test ur; var url1 = "tel:124568";  
                   Intent intent = new Intent(Intent.ActionView, Uri.Parse(url));  
                   MainActivity.StartActivity(intent);  
               }  
               else  
               {  
                   //Handle Web Urls  
                   view.LoadUrl(url.ToString());  
               }  
     
               return true;  
     
     
           }  
     
           //public override bool ShouldOverrideUrlLoading(WebView view, IWebResourceRequest request)  
           //{  
           //    var uri = view.Url;  
     
           //        if (uri.ToString().StartsWith("tel:"))  
           //    {  
           //        //Handle telephony Urls  
     
           //       // test ur; var url1 = "tel:124568";  
           //        Intent intent = new Intent(Intent.ActionView, Uri.Parse(uri));  
           //        MainActivity.StartActivity(intent);  
           //    }  
           //    else  
           //    {  
           //            //Handle Web Urls  
           //            view.LoadUrl(uri.ToString());                 
           //    }  
     
           //    return true;  
                
           //}  
       }  

Best Regards,

Leon Lu

---

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Answer 2

Thanks Mr. Leon Lu for your support.
I think almost reach.

but unfortunately my purpose not complete

i host a website and i include that website using loadUrl application

here i directly give "tel:77888544" into var uri. that time dial pad opened
but its not get url from my webpage

Html Code

<a href="tel:77888544"><Hotline : 77888544 </a>

xamarin

using Android.App;
using Android.OS;
using Android.Runtime;
using AndroidX.AppCompat.App;
using Android.Webkit;
using Android.Content;
using static Xamarin.Essentials.Resource;
using Android.Net;

namespace starfox_serv_4
{
[Activity(Label = "@ hide /app_name", Icon ="@mipmap/starfox", Theme = "@STYLE /AppTheme", MainLauncher = true)]
public class MainActivity : AppCompatActivity
{

    public WebView mwebview;  
    public WebViewClient mwebclient;  
    protected override void OnCreate(Bundle savedInstanceState)  
    {  
        //mycode  

        mwebclient = new WebViewClient();  
        mwebview = FindViewById<WebView>(Resource.Id.webView1);  

        mwebview.Settings.JavaScriptEnabled = true;  
        mwebview.LoadUrl("https://www.secuviews.com/apk/"); //web path  
        mwebview.SetWebViewClient(mwebclient);  

        mwebview.SetWebViewClient(new HelloWebViewClient(this));  

    }  
    public class HelloWebViewClient : WebViewClient  
    {  
        public HelloWebViewClient(MainActivity mainActivity)  
        {  
            MainActivity = mainActivity;  
        }  
        public MainActivity MainActivity { get; }  

        public override bool ShouldOverrideUrlLoading(WebView view, IWebResourceRequest request)  
        {  
            **var uri = view.Url;**  
            if (uri.ToString().StartsWith("tel:"))  
            {  
                //Handle telephony Urls  
                // test ur; var url1 = "tel:124568";  
                Intent intent = new Intent(Intent.ActionView, Uri.Parse(uri));  
                MainActivity.StartActivity(intent);  
            }  
            else  
            {  
                //Handle Web Urls  
                view.LoadUrl(uri.ToString());  
            }  
            return true;  

        }  
    }