How To Handle A Webview Confirm Dialog?

I'm displaying a webpage in a WebView and on the webpage, there is a button. When you click the button, a confirmation dialog is supposed to popup, but it doesn't show in my WebVi

Solution 1:

Ok, found the answer and here it is!

In order to handle a popup confirmation coming from a webpage in your WebView, you need to override the onJsConfirm method in WebChromeClient to display the popup as an Android Alert dialog. Here is the code to do so.

finalContextmyApp=this; 
finalclassMyWebChromeClientextendsWebChromeClient {
    @OverridepublicbooleanonJsConfirm(WebView view, String url, String message, final JsResult result) {
        newAlertDialog.Builder(myApp)
        .setTitle("App Titler")
        .setMessage(message)
        .setPositiveButton(android.R.string.ok,
                newDialogInterface.OnClickListener()
        {
            publicvoidonClick(DialogInterface dialog, int which)
            {
                result.confirm();
            }
        })
        .setNegativeButton(android.R.string.cancel,
                newDialogInterface.OnClickListener()
        {
            publicvoidonClick(DialogInterface dialog, int which)
            {
                result.cancel();
            }
        })
        .create()
        .show();

        returntrue;
    }
}

Don't forget to set your WebChromeClient in your WebView...

    mWebView.setWebChromeClient(newMyWebChromeClient());

Note.. this isn't my code, but I found it and it works perfectly for handling javascript confirmation dialogs in a WebView!

Cheers!

Solution 2:

Thanks Brockoli for the method. I needed this for Xamarin.Android

publicclassMyWebChromeClient : WebChromeClient
{
    private Context mContext;
    private JsResult res;

    publicMyWebChromeClient(Context context)
    {
        mContext = context;
    }


     publicoverrideboolOnJsConfirm(WebView view, string url, string message, JsResult result)
    {

        res = result;

        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.SetTitle("Confirm:");
        builder.SetMessage(message);
        builder.SetPositiveButton(Android.Resource.String.Ok,  OkAction);
        builder.SetNegativeButton(Android.Resource.String.Cancel, CancelAction);
        builder.Create();
        builder.Show();

        returntrue;


        //return base.OnJsConfirm(view, url, message, result);
    }

    privatevoidCancelAction(object sender, DialogClickEventArgs e)
    {
        res.Cancel();
    }

    privatevoidOkAction(object sender, DialogClickEventArgs e)
    {
        res.Confirm();
    }
}

This back in the activity where webview is created (web_view)

web_view.SetWebChromeClient(newMyWebChromeClient(this));