Requesting location and notification permissions in a webview

[giulichajari]

This is the code of my webView Class, i already achieve requesting Camera Permisions for the webView, but geolocation and push notification are not working:

public static class MauiAppServices
{
    public static async Task<bool> CheckAndRequestCameraPermission()
    {
        var status = await Permissions.CheckStatusAsync<Permissions.Camera>();
        if (status != PermissionStatus.Granted)
        {
            status = await Permissions.RequestAsync<Permissions.Camera>();
        }

        return status == PermissionStatus.Granted;
    }
    public static async Task<bool> CheckAndRequestLocationPermission()
    {
        var status = await Permissions.CheckStatusAsync<Permissions.LocationWhenInUse>();
        if (status != PermissionStatus.Granted)
        {
            status = await Permissions.RequestAsync<Permissions.LocationWhenInUse>();
        }

        return status == PermissionStatus.Granted;
    }

    public static async Task<bool> CheckAndRequestNotificationPermission()
    {
        if (OperatingSystem.IsAndroidVersionAtLeast(33))
        {
            var status = await Permissions.CheckStatusAsync<Permissions.PostNotifications>();
            if (status != PermissionStatus.Granted)
            {
                status = await Permissions.RequestAsync<Permissions.PostNotifications>();
            }

            return status == PermissionStatus.Granted;
        }

        // Si la versión de Android no requiere permiso explícito, lo damos por concedido.
        return true;
    }
}
public class MyWebChromeClient : WebChromeClient
{
    public override bool OnShowFileChooser(WebView webView, IValueCallback filePathCallback, FileChooserParams fileChooserParams)
    {
        if (filePathCallback is null)
            return base.OnShowFileChooser(webView, filePathCallback, fileChooserParams);

        OnShowFileChooserAsync(filePathCallback, fileChooserParams).Wait();

        return true;
    }
    public override void OnPermissionRequest(PermissionRequest request)
    {
        var resources = request.GetResources();

        // Comprueba si la solicitud incluye acceso a recursos comunes (video, audio, o ubicación)
        if (resources.Contains(PermissionRequest.ResourceVideoCapture) ||
            resources.Contains(PermissionRequest.ResourceAudioCapture))
        {
            request.Grant(resources); // Otorga permisos automáticamente para recursos de video/audio
        }
        else if (resources.Contains("android.webkit.resource.GEOLOCATION"))
        {
            // Verifica si el permiso de ubicación está otorgado
            Task.Run(async () =>
            {
                var hasLocationPermission = await MauiAppServices.CheckAndRequestLocationPermission();
                if (hasLocationPermission)
                {
                    request.Grant(resources); // Otorga el permiso de geolocalización
                }
                else
                {
                    request.Deny();
                }
            });
        }
        else
        {
            base.OnPermissionRequest(request);
        }
    }
    
    ....
    }

The App on Android request the user for geolocation but webView don't take the coordinates and dont receive notifications.

 

[Skydiver]

While running your debugger, when you set breakpoint on lines 18, 31, and 67, do you hit the breakpoints?

 

[giulichajari]

i achieve using geolocation using the code below:

    public override void OnGeolocationPermissionsShowPrompt(string? origin, GeolocationPermissions.ICallback? callback)
    {
        if (callback == null)
            return;

        MainThread.BeginInvokeOnMainThread(async () =>
        {
            // Verificar y solicitar permisos
            var permissionStatus = await MauiAppServices.CheckAndRequestLocationPermission();

            // Invocar el callback con el resultado del permiso
            callback.Invoke(origin, permissionStatus, false);
        });
    }

Now i'm going to try the debug at the lines you had told me.

 

[giulichajari]

While running your debugger, when you set breakpoint on lines 18, 31, and 67, do you hit the breakpoints?

this line doesn't hit in debug mode with a breakpoint, notifications comes from firebase

    status = await Permissions.RequestAsync<Permissions.PostNotifications>();

 

[Skydiver]

Are lines 26 and 28 even reached?

 

[giulichajari]

Are lines 26 and 28 even reached?

it never enter to the function for asking for permissions, that my contentpage with the webview:

        public RepoWeb()
        {
            InitializeComponent();

#if ANDROID
            webView.HandlerChanged += (s, e) =>
            {
                if (webView.Handler.PlatformView is Android.Webkit.WebView androidWebView)
                {
                    androidWebView.Settings.JavaScriptEnabled = true;
                    androidWebView.Settings.MediaPlaybackRequiresUserGesture = false;
                    androidWebView.Settings.AllowFileAccess = true;
                    androidWebView.Settings.AllowContentAccess = true;

                    // Configuración de WebChromeClient para manejar permisos de la cámara
                   androidWebView.SetWebChromeClient(new MyWebChromeClient());
                  


                }
            };
            
                  
#endif
            webView.Navigated += OnNavigated;
            Loaded += ContentPage_Loaded;

        }