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Merge pull request #293 from Esri/Caleb/New-FindRouteInMobileMapPackage
[New] Find route in mobile map package
2 parents 382c8c9 + 3da9b57 commit 0390d7a

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‎Samples.xcodeproj/project.pbxproj‎

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@@ -819,6 +833,7 @@
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D78666A92A21616D00C60110 /* Find nearest vertex */,
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E066DD33285CF3A0004D3D5B /* Find route */,
821835
D7DDF84F2AF47C6C004352D9 /* Find route around barriers */,
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D76000AA2AF19C2300B3084D /* Find route in mobile map package */,
822837
D7E7D0792AEB39BF003AAD02 /* Find route in transport network */,
823838
E088E1722863B5E600413100 /* Generate offline map */,
824839
D7553CD62AE2DFEC00DC2A70 /* Geocode offline */,
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@@ -1974,6 +2008,7 @@
19742008
ChangeCameraController,
19752009
DisplayDimensions,
19762010
DisplayMapFromMobileMapPackage,
2011+
FindRouteInMobileMapPackage,
19772012
FindRouteInTransportNetwork,
19782013
GeocodeOffline,
19792014
IdentifyRasterCell,
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00D4EF9028638BF100B9CC30 /* LA_Trails.geodatabase in Resources */,
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E004A6E028466279002A1FE6 /* ShowCalloutView.swift in Sources */,
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E000E763286A0B18005D87C5 /* CutGeometryView.swift in Sources */,
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D7705D582AFC244E00CC0335 /* FindClosestFacilityToMultiplePointsView.swift in Sources */,
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0042E24528E4F82C001F33D6 /* ShowViewshedFromPointInSceneView.ViewshedSettingsView.swift in Sources */,
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1C9B74D929DB54560038B06F /* ChangeCameraControllerView.swift in Sources */,
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D76000AE2AF19C2300B3084D /* FindRouteInMobileMapPackageView.swift in Sources */,
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D744FD172A2112D90084A66C /* CreateConvexHullAroundPointsView.swift in Sources */,
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D73723762AF5877500846884 /* FindRouteInMobileMapPackageView.Models.swift in Sources */,
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00CB9138284814A4005C2C5D /* SearchWithGeocodeView.swift in Sources */,
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1C43BC7F2A43781200509BF8 /* SetVisibilityOfSubtypeSublayerView.Views.swift in Sources */,
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D754E3232A1D66820006C5F1 /* StylePointWithPictureMarkerSymbolsView.swift in Sources */,

‎Shared/Samples/Find route in mobile map package/FindRouteInMobileMapPackageView.MobileMapView.swift‎

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// Copyright 2023 Esri
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import ArcGIS
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import SwiftUI
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extension FindRouteInMobileMapPackageView {
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/// The map view for a mobile map package map.
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struct MobileMapView: View {
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/// The view model for the view.
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@StateObject private var model: Model
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/// The placement of the address callout on the map.
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@State private var calloutPlacement: CalloutPlacement?
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/// The text address shown in the callout.
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@State private var calloutText: String = ""
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/// The point on the screen where the user tapped.
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@State private var tapScreenPoint: CGPoint?
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/// A Boolean value indicating whether the reset button is disabled.
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@State private var resetDisabled = true
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/// A Boolean value indicating whether the error alert is showing.
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@State private var errorAlertIsShowing = false
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/// The error shown in the error alert.
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@State private var error: Error? {
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didSet { errorAlertIsShowing = error != nil }
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}
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init(map: Map, locatorTask: LocatorTask) {
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let model = Model(map: map, locatorTask: locatorTask)
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_model = StateObject(wrappedValue: model)
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}
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var body: some View {
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MapViewReader { mapViewProxy in
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MapView(map: model.map, graphicsOverlays: model.graphicsOverlays)
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.callout(placement: $calloutPlacement) { _ in
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Text(calloutText)
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.font(.callout)
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.padding(8)
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}
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.onSingleTapGesture { screenPoint, _ in
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tapScreenPoint = screenPoint
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}
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.task(id: tapScreenPoint) {
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guard let tapScreenPoint else { return }
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do {
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// Check to see if the tap was on a marker.
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let identifyResult = try await mapViewProxy.identify(
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on: model.markerGraphicsOverlay,
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screenPoint: tapScreenPoint,
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tolerance: 12
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)
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if let graphic = identifyResult.graphics.first,
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let graphicPoint = graphic.geometry as? Point {
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// Update the callout to the identified marker.
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await updateCallout(point: graphicPoint, graphic: graphic)
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} else {
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// Add a graphic at the tapped map point.
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guard let location = mapViewProxy.location(
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fromScreenPoint: tapScreenPoint
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) else { return }
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await addGraphic(at: location)
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}
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} catch {
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self.error = error
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}
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}
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}
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.toolbar {
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ToolbarItemGroup(placement: .bottomBar) {
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Spacer()
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Button("Reset") {
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resetGraphics()
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}
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.disabled(resetDisabled)
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}
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}
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.task {
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// Load the route parameters sample loads.
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do {
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try await model.loadRouteParameters()
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} catch {
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self.error = error
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}
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}
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.alert(isPresented: $errorAlertIsShowing, presentingError: error)
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}
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/// Updates the placement and text of the callout using a given point and graphic.
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/// - Parameters:
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/// - point: The point to reverse geocode and set the callout placement to.
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/// - graphic: The graphic at the point.
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private func updateCallout(point: Point, graphic: Graphic) async {
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// Update the callout text with the address from a reverse geocode.
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do {
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calloutText = try await model.reverseGeocode(point: point)
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} catch {
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self.error = error
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calloutText = "No address found"
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}
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// Update the callout placement with the graphic and point.
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calloutPlacement = .geoElement(graphic, tapLocation: point)
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}
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/// Adds a marker or route stop with a callout at a given point.
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/// - Parameter point: The point to add the graphic at.
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private func addGraphic(at point: Point) async {
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// Normalize the tap location.
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guard let point = GeometryEngine.normalizeCentralMeridian(of: point) as? Point else { return }
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// Add a route stop if the map has routing. Otherwise, update the marker.
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if model.routeTask != nil {
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do {
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try await model.addRouteStop(at: point)
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} catch {
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self.error = error
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}
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} else {
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model.updateMarker(to: point)
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}
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// Update the callout with the last marker.
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guard let lastMarker = model.lastMarker else { return }
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await updateCallout(point: point, graphic: lastMarker)
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resetDisabled = false
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}
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/// Resets the graphics on the map view.
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private func resetGraphics() {
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// Reset the view properties.
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calloutPlacement = nil
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resetDisabled = true
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// Reset the graphics.
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if model.routeTask != nil {
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model.markerGraphicsOverlay.removeAllGraphics()
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model.routeGraphicsOverlay?.removeAllGraphics()
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} else {
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model.lastMarker?.geometry = nil
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}
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}
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}
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}

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