Open phone dialer using a Android Xamarin WebView html link

Question

I'm trying to use the ShouldOverrideUrlLoading() method but the app crashes when I call it.

Below is my code:

private class HybridWebViewClient : WebViewClient
        {


            public override bool ShouldOverrideUrlLoading(WebView webView, string url)
            {

                var tel = "tel:";
                if (url.StartsWith(tel))
                {

                    var uri = Android.Net.Uri.Parse(url);
                    var intent = new Intent(Intent.ActionDial, uri);
                    var act = new Activity();
                    act.StartActivity(intent);
                }

            }
        }

Thanks in Advance!

Answer 1

The problem lies in the following codes snippet:

var act = new Activity();
act.StartActivity(intent);

The method StartActivity should be called from current context instead of a new Activity . So you need to pass the current context to HybridWebViewClient :

public class HybridWebViewClient : WebViewClient
{
    Context context;
    public HybridWebViewClient(Context context)
    {
        this.context = context;
    }

    public override bool ShouldOverrideUrlLoading(WebView view, string url)
    {
        var tel = "tel:";
        if (url != null)
        {
            if (url.StartsWith(tel))
            {

                var uri = Android.Net.Uri.Parse(url);
                var intent = new Intent(Intent.ActionDial, uri);
                context.StartActivity(intent);
            }
        }
        return true;
    }
}

And in the OnCreate method:

protected override void OnCreate(Bundle bundle)
{
    base.OnCreate(bundle);
    ...
    webview.SetWebViewClient(new HybridWebViewClient(this));
    webview.LoadUrl("http://example.com");
   ...
}

Answer 2

What is in the craash dump? Is this related?

shouldOverrideUrlLoading(WebView view, String url) This method was deprecated in API level 24. Use shouldOverrideUrlLoading(WebView, WebResourceRequest) instead.