Update feature attributes in an online feature service.
Use case
Online feature services can be updated with new data. This is useful for updating existing data in real time while working in the field.
How to use the sample
To change the feature's damage property, tap the feature to select it, tap the icon in the callout, then choose a new damage type.
How it works
Create and load an AGSServiceGeodatabase with a feature service URL.
Get the AGSServiceFeatureTable from the service geodatabase.
Create an AGSFeatureLayer from the service feature table.
Select features from the AGSFeatureLayer.
Change the selected feature's attributes.
Update the table with AGSFeatureTable.update(_:completion:).
Apply edits to the AGSServiceGeodatabase by calling AGSServiceGeodatabase.applyEdits(completion:), which will update the feature on the online service.
Relevant API
AGSArcGISFeature
AGSFeatureLayer
AGSServiceFeatureTable
AGSServiceGeodatabase
Tags
amend, attribute, details, edit, editing, information, value
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// Copyright 2016 Esri.//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at//// http://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License.import UIKit
protocolUpdateAttributesOptionsViewControllerDelegate: AnyObject{
funcoptionsViewController(_optionsViewController: UpdateAttributesOptionsViewController, didSelectOptionAtIndexindex: Int)funcoptionsViewControllerDidCancel(_optionsViewController: UpdateAttributesOptionsViewController)}
classUpdateAttributesOptionsViewController: UITableViewController{
var options = [String]()
weakvar delegate: UpdateAttributesOptionsViewControllerDelegate?
// MARK: - Table view data sourceoverridefuncnumberOfSections(intableView: UITableView) -> Int {
return1 }
overridefunctableView(_tableView: UITableView, numberOfRowsInSectionsection: Int) -> Int {
return options.count
}
overridefunctableView(_tableView: UITableView, cellForRowAtindexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "EAOptionsCell", for: indexPath)
cell.textLabel?.text = options[indexPath.row]
return cell
}
// MARK: - Table view delegateoverridefunctableView(_tableView: UITableView, didSelectRowAtindexPath: IndexPath) {
delegate?.optionsViewController(self, didSelectOptionAtIndex: indexPath.row)
}
// MARK: - Actions@IBActionfunccancel() {
delegate?.optionsViewControllerDidCancel(self)
}
}