public async Task Init()
{
await CrossMedia.Current.Initialize();
cameraOK = await Permisos.GetPermissionStatus <Xamarin.Essentials.Permissions.Camera>();
storageOK = await Permisos.GetPermissionStatus <Xamarin.Essentials.Permissions.StorageRead>();
if (cameraOK != PermissionStatus.Granted || storageOK != PermissionStatus.Granted)
{
cameraOK = await Permisos.GetPermissionStatus <Xamarin.Essentials.Permissions.Camera>();
storageOK = await Permisos.GetPermissionStatus <Xamarin.Essentials.Permissions.StorageRead>();
}
this.IsInited = true;
}