private async void AddAttachment(UITableView tableView)
{
// Get the image to upload.
Stream imageStream = await GetImageStreamAsync();
if (imageStream == null)
{
return;
}
// Convert the image stream into a byte array.
byte[] attachmentData = new byte[imageStream.Length];
imageStream.Read(attachmentData, 0, attachmentData.Length);
// Determine the file name.
string filename = _filename ?? "iOS_image_1.jpg";
// Add the attachment.
// The contentType string is the MIME type for JPEG files, image/jpeg.
await _selectedFeature.AddAttachmentAsync(filename, "image/jpeg", attachmentData);
// Get a reference to the feature's service feature table.
ServiceFeatureTable serviceTable = (ServiceFeatureTable)_selectedFeature.FeatureTable;
// Apply the edits to the service feature table.
await serviceTable.ApplyEditsAsync();
// Update UI.
_selectedFeature.Refresh();
_attachments = await _selectedFeature.GetAttachmentsAsync();
tableView.ReloadData();
_viewController.ShowMessage("Successfully added attachment", "Success!");
}
private async void UpdateUIForFeature()
{
// Select the feature.
_damageLayer.SelectFeature(_selectedFeature);
// Get the attachments.
_featureAttachments = await _selectedFeature.GetAttachmentsAsync();
// Limit to only feature attachments with an image/jpeg content type.
_featureAttachments = _featureAttachments.Where(attachment => attachment.ContentType == "image/jpeg").ToList();
// Configure array adapter.
ArrayAdapter attachmentAdapter = new ArrayAdapter <string>(
this,
Android.Resource.Layout.SimpleListItem1,
_featureAttachments.Select(attachment => attachment.Name).ToArray());
// Populate the list.
_attachmentsListView.Adapter = attachmentAdapter;
}
private async void MapView_Tapped(object sender, GeoViewInputEventArgs e)
{
// Clear any existing selection.
_damageLayer.ClearSelection();
_selectedFeature = null;
// Reset the UI.
AttachmentsListBox.IsEnabled = false;
AttachmentsListBox.ItemsSource = null;
AddAttachmentButton.IsEnabled = false;
try
{
// Perform an identify to determine if a user tapped on a feature.
IdentifyLayerResult identifyResult = await MyMapView.IdentifyLayerAsync(_damageLayer, e.Position, 2, false);
// Do nothing if there are no results.
if (!identifyResult.GeoElements.Any())
{
return;
}
// Get the selected feature as an ArcGISFeature. It is assumed that all GeoElements in the result are of type ArcGISFeature.
GeoElement tappedElement = identifyResult.GeoElements.First();
ArcGISFeature tappedFeature = (ArcGISFeature)tappedElement;
// Select the feature in the UI and hold a reference to the tapped feature in a field.
_damageLayer.SelectFeature(tappedFeature);
_selectedFeature = tappedFeature;
// Load the feature.
await tappedFeature.LoadAsync();
// Get the attachments.
IReadOnlyList <Attachment> attachments = await tappedFeature.GetAttachmentsAsync();
// Populate the UI with a list of attachments that have a content type of image/jpeg.
AttachmentsListBox.ItemsSource = attachments.Where(attachment => attachment.ContentType == "image/jpeg");
AttachmentsListBox.IsEnabled = true;
AddAttachmentButton.IsEnabled = true;
}
catch (Exception ex)
{
await new MessageDialog2(ex.ToString(), "Error loading feature").ShowAsync();
}
}
private async void SetYTY()
{
await ArcGISFeature.LoadAsync();
IReadOnlyList <Attachment> attachments = await ArcGISFeature.GetAttachmentsAsync();
foreach (Attachment attachment in attachments)
{
if (attachment.Name.Equals(ArcGisService.YTY_FILE_NAME))
{
Stream jsonStream = await attachment.GetDataAsync();
StreamReader streamReader = new StreamReader(jsonStream);
string jsonString = streamReader.ReadToEnd();
Binstance.YTYDatas.Clear();
Binstance.YTYDatas.AddRange((List <YTYData>)JsonConvert.DeserializeObject <IEnumerable <YTYData> >(jsonString));
break;
}
}
}
private async void AddAttachment_Click(object sender, RoutedEventArgs e)
{
if (_selectedFeature == null)
{
return;
}
// Adjust the UI.
AddAttachmentButton.IsEnabled = false;
ActivityIndicator.Visibility = Visibility.Visible;
// Get the file.
string contentType = "image/jpeg";
byte[] attachmentData;
try
{
// Show a file picker.
// Allow the user to specify a file path - create the picker.
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.FileTypeFilter.Add(".jpg");
// Show the picker.
StorageFile file = await openPicker.PickSingleFileAsync();
// Take action if the user selected a file.
if (file == null)
{
return;
}
// Read the file contents into memory.
Stream dataStream = await file.OpenStreamForReadAsync();
attachmentData = new byte[dataStream.Length];
dataStream.Read(attachmentData, 0, attachmentData.Length);
dataStream.Close();
// Add the attachment.
// The contentType string is the MIME type for JPEG files, image/jpeg.
await _selectedFeature.AddAttachmentAsync(file.Name, contentType, attachmentData);
// Get a reference to the feature's service feature table.
ServiceFeatureTable serviceTable = (ServiceFeatureTable)_selectedFeature.FeatureTable;
// Apply the edits to the service feature table.
await serviceTable.ApplyEditsAsync();
// Update UI.
_selectedFeature.Refresh();
AttachmentsListBox.ItemsSource = await _selectedFeature.GetAttachmentsAsync();
await new MessageDialog2("Successfully added attachment", "Success!").ShowAsync();
}
catch (Exception exception)
{
await new MessageDialog2(exception.ToString(), "Error adding attachment").ShowAsync();
}
finally
{
// Adjust the UI.
AddAttachmentButton.IsEnabled = true;
ActivityIndicator.Visibility = Visibility.Collapsed;
}
}
private async void AddAttachment_Click(object sender, EventArgs e)
{
if (_selectedFeature == null)
{
return;
}
// Adjust the UI.
AddAttachmentButton.IsEnabled = false;
AttachmentActivityIndicator.IsVisible = true;
// Get the file.
string contentType = "image/jpeg";
try
{
byte[] attachmentData;
string filename;
// Xamarin.Plugin.FilePicker shows the iCloud picker (not photo picker) on iOS.
// This iOS code shows the photo picker.
#if __IOS__
Stream imageStream = await GetImageStreamAsync();
if (imageStream == null)
{
return;
}
attachmentData = new byte[imageStream.Length];
imageStream.Read(attachmentData, 0, attachmentData.Length);
filename = _filename ?? "file1.jpeg";
#else
// Show a file picker - this uses the Xamarin.Plugin.FilePicker NuGet package.
FileData fileData = await CrossFilePicker.Current.PickFile(new[] { ".jpg", ".jpeg" });
if (fileData == null)
{
return;
}
if (!fileData.FileName.EndsWith(".jpg") && !fileData.FileName.EndsWith(".jpeg"))
{
await Application.Current.MainPage.DisplayAlert("Try again!", "This sample only allows uploading jpg files.", "OK");
return;
}
attachmentData = fileData.DataArray;
filename = fileData.FileName;
#endif
// Add the attachment.
// The contentType string is the MIME type for JPEG files, image/jpeg.
await _selectedFeature.AddAttachmentAsync(filename, contentType, attachmentData);
// Get a reference to the feature's service feature table.
ServiceFeatureTable serviceTable = (ServiceFeatureTable)_selectedFeature.FeatureTable;
// Apply the edits to the service feature table.
await serviceTable.ApplyEditsAsync();
// Update UI.
_selectedFeature.Refresh();
AttachmentsListBox.ItemsSource = await _selectedFeature.GetAttachmentsAsync();
await Application.Current.MainPage.DisplayAlert("Success!", "Successfully added attachment", "OK");
}
catch (Exception exception)
{
await Application.Current.MainPage.DisplayAlert("Error adding attachment", exception.ToString(), "OK");
}
finally
{
// Adjust the UI.
AddAttachmentButton.IsEnabled = true;
AttachmentActivityIndicator.IsVisible = false;
}
}
private async void AddAttachment_Click(object sender, RoutedEventArgs e)
{
if (_selectedFeature == null)
{
return;
}
// Adjust the UI.
AddAttachmentButton.IsEnabled = false;
ActivityIndicator.Visibility = Visibility.Visible;
try
{
// Show a file dialog.
// Allow the user to specify a file path - create the dialog.
OpenFileDialog dlg = new OpenFileDialog
{
DefaultExt = ".jpg",
Filter = "Image Files(*.JPG;*.JPEG)|*.JPG;*.JPEG",
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyPictures)
};
// Show the dialog and get the results.
bool?result = dlg.ShowDialog();
// Take action if the user selected a file.
if (result != true)
{
return;
}
// Get the name of the file from the full path (dlg.FileName is the full path).
string filename = Path.GetFileName(dlg.FileName);
// Create a stream for reading the file.
FileStream fs = new FileStream(dlg.FileName,
FileMode.Open,
FileAccess.Read);
// Create a binary reader from the stream.
BinaryReader br = new BinaryReader(fs);
// Populate the attachment data with the binary content.
long numBytes = new FileInfo(dlg.FileName).Length;
byte[] attachmentData = br.ReadBytes((int)numBytes);
// Close the stream.
fs.Close();
// Add the attachment.
// The contentType string is the MIME type for JPEG files, image/jpeg.
await _selectedFeature.AddAttachmentAsync(filename, "image/jpeg", attachmentData);
// Get a reference to the feature's service feature table.
ServiceFeatureTable serviceTable = (ServiceFeatureTable)_selectedFeature.FeatureTable;
// Apply the edits to the service feature table.
await serviceTable.ApplyEditsAsync();
// Update UI.
_selectedFeature.Refresh();
AttachmentsListBox.ItemsSource = await _selectedFeature.GetAttachmentsAsync();
MessageBox.Show("Successfully added attachment", "Success!");
}
catch (Exception exception)
{
MessageBox.Show(exception.ToString(), "Error adding attachment");
}
finally
{
// Adjust the UI.
AddAttachmentButton.IsEnabled = true;
ActivityIndicator.Visibility = Visibility.Collapsed;
}
}
public static async Task <ArcCrudEnum> EditBin(BinViewModel binViewModel)
{
IBinstance bin = binViewModel.Binstance;
ArcGISFeature featureToEdit = binViewModel.ArcGISFeature;
try
{
await featureToEdit.LoadAsync();
featureToEdit.Attributes["identifier"] = bin.Identifier;
featureToEdit.Attributes["modified_by"] = binViewModel.EmpoyeeNumber;
switch (bin.BinType)
{
case BinTypeEnum.RoundStorage:
featureToEdit.Attributes["bin_type"] = "round_storage";
break;
case BinTypeEnum.GravityWagon:
featureToEdit.Attributes["bin_type"] = "gravity_wagon";
break;
case BinTypeEnum.PolygonStructure:
featureToEdit.Attributes["bin_type"] = "polygon_structure";
break;
case BinTypeEnum.FlatStructure:
featureToEdit.Attributes["bin_type"] = "flat_structure";
break;
}
featureToEdit.Attributes["year_collected"] = bin.YearCollected;
if (bin.IsLeased.HasValue)
{
featureToEdit.Attributes["owned_or_leased"] = bin.IsLeased.Value ? "leased" : "owned";
}
if (bin.HasDryingDevice.HasValue)
{
featureToEdit.Attributes["drying_device"] = bin.HasDryingDevice.Value ? "true" : "false";
}
if (bin.HasGrainHeightIndicator.HasValue)
{
featureToEdit.Attributes["bin_level_indicator_device"] = bin.HasGrainHeightIndicator.Value ? "true" : "false";
}
switch (bin.LadderType)
{
case Ladder.None:
featureToEdit.Attributes["ladder_type"] = "none";
break;
case Ladder.Ladder:
featureToEdit.Attributes["ladder_type"] = "ladder";
break;
case Ladder.Stairs:
featureToEdit.Attributes["ladder_type"] = "stairs";
break;
}
featureToEdit.Attributes["notes"] = bin.Notes;
double dr;
//double.TryParse(bin.BinVolume, out dr);
//featureToEdit.Attributes["bin_volume"] = dr;
//bin type specific logic below
Type t = bin.GetType();
if (bin.BinType == BinTypeEnum.FlatStructure)
{
if (t.Equals(typeof(FlatBin)))
{
FlatBin flat = (FlatBin)bin;
featureToEdit.Attributes["crib_height"] = flat.CribLength;
featureToEdit.Attributes["crib_width"] = flat.CribWidth;
}
}
else if (bin.BinType == BinTypeEnum.GravityWagon)
{
if (t.Equals(typeof(GravityBin)))
{
GravityBin gravityBin = (GravityBin)bin;
featureToEdit.Attributes["chute_length"] = gravityBin.ChuteLength;
featureToEdit.Attributes["hopper_height"] = gravityBin.HopperHeight;
featureToEdit.Attributes["rectangle_height"] = gravityBin.RectangleHeight;
featureToEdit.Attributes["rectangle_length"] = gravityBin.RectangleLength;
featureToEdit.Attributes["rectangle_width"] = gravityBin.RectangleWidth;
}
}
else if (bin.BinType == BinTypeEnum.PolygonStructure)
{
if (t.Equals(typeof(PolygonBin)))
{
PolygonBin polygonBin = (PolygonBin)bin;
featureToEdit.Attributes["side_height"] = polygonBin.SideHeight;
featureToEdit.Attributes["side_width"] = polygonBin.SideWidth;
featureToEdit.Attributes["number_of_sides"] = polygonBin.NumberOfSides;
}
}
else if (bin.BinType == BinTypeEnum.RoundStorage)
{
if (t.Equals(typeof(PolygonBin)))
{
RoundBin round = (RoundBin)bin;
if (round.HasHopper.HasValue)
{
featureToEdit.Attributes["has_hopper"] = round.HasHopper.Value ? "true" : "false";
}
featureToEdit.Attributes["radius"] = round.Radius;
featureToEdit.Attributes["wall_height"] = round.WallHeight;
featureToEdit.Attributes["roof_height"] = round.RoofHeight;
featureToEdit.Attributes["hopper_height"] = round.HopperHeight;
}
}
// can't be null
if (binViewModel.Binstance.YTYDatas == null)
{
binViewModel.Binstance.YTYDatas = new List <YTYData>();
}
//use data in _binViewModel
System.Diagnostics.Debug.Print("Feature can edit attachments" + (featureToEdit.CanEditAttachments ? "Yes" : "No"));
//-------- Formatting --------
//create json
string jsonString = JsonConvert.SerializeObject(binViewModel.Binstance.YTYDatas);
//System.Diagnostics.Debug.Print(jsonString);
//System.Diagnostics.Debug.Print(((Binstance)(binViewModel.Binstance)).YTYDatasString());
// convert json to byte array
byte[] byteArray = Encoding.UTF8.GetBytes(jsonString);
//-------- ARC Connection --------
//remove old YTYData
List <Attachment> attachmentsToRemove = new List <Attachment>();
IReadOnlyList <Attachment> attachments = await featureToEdit.GetAttachmentsAsync();
foreach (Attachment attachment in attachments)
{
System.Diagnostics.Debug.Print(attachment.Name);
if (attachment.Name.Equals(YTY_FILE_NAME))
{
System.Diagnostics.Debug.Print("Found YTY attachment");
attachmentsToRemove.Add(attachment);
}
}
System.Diagnostics.Debug.Print("Attachments to remove:");
foreach (Attachment attachment in attachments)
{
System.Diagnostics.Debug.Print(attachment.Name);
}
if (attachmentsToRemove.Any())
{
//update the json file
await featureToEdit.UpdateAttachmentAsync(attachmentsToRemove.First(), YTY_FILE_NAME, "application/json", byteArray);
}
_featureTable = (ServiceFeatureTable)featureToEdit.FeatureTable;
// update feature after attachment added
await _featureTable.UpdateFeatureAsync(featureToEdit); //agsFeature
System.Diagnostics.Debug.Print("Feature table updated");
// push to ArcGIS Online feature service
IReadOnlyList <EditResult> editResults = await _featureTable.ApplyEditsAsync();
System.Diagnostics.Debug.Print("Arc updated");
foreach (var er in editResults)
{
if (er.CompletedWithErrors)
{
// handle error (er.Error.Message)
return(ArcCrudEnum.Failure);
}
}
return(ArcCrudEnum.Success);
}
catch (ArcGISWebException)
{
return(ArcCrudEnum.Exception);
}
}