示例#1
0
        private async Task Initialize()
        {
            // Handle the login to the feature service.
            AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(async(info) =>
            {
                try
                {
                    // WARNING: Never hardcode login information in a production application. This is done solely for the sake of the sample.
                    string sampleServer7User = "******";
                    string sampleServer7Pass = "******";
                    return(await AuthenticationManager.Current.GenerateCredentialAsync(info.ServiceUri, sampleServer7User, sampleServer7Pass));
                }
                catch (Exception ex)
                {
                    Debug.WriteLine(ex.Message);
                    return(null);
                }
            });

            try
            {
                // Create a map.
                MyMapView.Map = new Map(BasemapStyle.ArcGISStreets);

                // Populate the combo boxes.
                AccessBox.ItemsSource = new List <VersionAccess> {
                    VersionAccess.Public, VersionAccess.Protected, VersionAccess.Private
                };
                DamageBox.ItemsSource = new List <string> {
                    "Destroyed", "Inaccessible", "Major", "Minor", "Affected"
                };

                // Create and load a service geodatabase.
                _serviceGeodatabase = new ServiceGeodatabase(new Uri("https://sampleserver7.arcgisonline.com/server/rest/services/DamageAssessment/FeatureServer/0"));
                await _serviceGeodatabase.LoadAsync();

                // When the service geodatabase has loaded get the default version name.
                CurrentVersionLabel.Content = $"Current version: {_serviceGeodatabase.DefaultVersionName}";

                // Get the service feature table from the service geodatabase.
                _featureTable = _serviceGeodatabase.GetTable(0);

                // Create a feature layer from the service feature table and add it to the map.
                _featureLayer = new FeatureLayer(_featureTable);
                MyMapView.Map.OperationalLayers.Add(_featureLayer);
                await _featureLayer.LoadAsync();

                // When the feature layer has loaded set the viewpoint and update the UI.
                await MyMapView.SetViewpointAsync(new Viewpoint(_featureLayer.FullExtent));

                // Enable the UI.
                CreateVersionButton.IsEnabled = true;
                MyMapView.GeoViewTapped      += MyMapView_GeoViewTapped;
            }
            catch (Exception ex)
            {
                ShowAlert(ex.Message, ex.GetType().Name);
            }
        }
        private async Task Initialize()
        {
            // Handle the login to the feature service.
            AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(async(info) =>
            {
                try
                {
                    // WARNING: Never hardcode login information in a production application. This is done solely for the sake of the sample.
                    string sampleServer7User = "******";
                    string sampleServer7Pass = "******";
                    return(await AuthenticationManager.Current.GenerateCredentialAsync(info.ServiceUri, sampleServer7User, sampleServer7Pass));
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine(ex.Message);
                    return(null);
                }
            });

            try
            {
                // Create a map.
                _myMapView.Map = new Map(BasemapStyle.ArcGISStreets);

                _damageSpinner.Adapter     = new ArrayAdapter <string>(this, Android.Resource.Layout.SimpleSpinnerItem, _damageLevels);
                _protectionSpinner.Adapter = new ArrayAdapter <string>(this, Android.Resource.Layout.SimpleSpinnerItem, _accessLevels.Select(l => Enum.GetName(typeof(VersionAccess), l)).ToList());

                // Create and load a service geodatabase.
                _serviceGeodatabase = new ServiceGeodatabase(new Uri("https://sampleserver7.arcgisonline.com/server/rest/services/DamageAssessment/FeatureServer/0"));
                await _serviceGeodatabase.LoadAsync();

                // When the service geodatabase has loaded get the default version name.
                _versionLabel.Text = $"Current version: {_serviceGeodatabase.DefaultVersionName}";

                // Get the service feature table from the service geodatabase.
                _featureTable = _serviceGeodatabase.GetTable(0);

                // Create a feature layer from the service feature table and add it to the map.
                _featureLayer = new FeatureLayer(_featureTable);
                _myMapView.Map.OperationalLayers.Add(_featureLayer);
                await _featureLayer.LoadAsync();

                // When the feature layer has loaded set the viewpoint and update the UI.
                await _myMapView.SetViewpointAsync(new Viewpoint(_featureLayer.FullExtent));

                // Enable the UI.
                _versionButton.Enabled    = true;
                _myMapView.GeoViewTapped += MapView_GeoViewTapped;
            }
            catch (Exception ex)
            {
                ShowAlert(ex.Message, ex.GetType().Name);
            }
        }