Latest Contributions by MervynLotter

Hi there I am hoping somebody can advise me where I have gone wrong. I have created a rather simple app using the "Open Mobile Map" template to which I have added functionality to view the device's location on the MMPK. This app opens and views correctly when I run app from within AppStudio (Shift+Alt+r) but not when I download app onto mobile device, either as a built app or to view via AppStudio Player 2.1.23 on a Samsung S8+ phone. When I try from AppStudio Player then all I see is the location button but not the MMPK. The MMPK is being placed in the C:\Users\xxxxx\ArcGIS\AppStudio\Data folder before uploading and/or building app. I paste the code I used below: import QtQuick 2.7 import QtQuick.Layouts 1.1 import QtQuick.Controls 2.1 import QtQuick.Controls.Material 2.1 import ArcGIS.AppFramework 1.0 import ArcGIS.AppFramework.Controls 1.0 import Esri.ArcGISRuntime 100.1 //GPS import QtPositioning 5.8 import QtSensors 5.2 import "controls" as Controls App {     id: app     width: 414     height: 736     function units(value) {         return AppFramework.displayScaleFactor * value     }     property real scaleFactor: AppFramework.displayScaleFactor     property int baseFontSize : app.info.propertyValue("baseFontSize", 15 * scaleFactor) + (isSmallScreen ? 0 : 3)     property bool isSmallScreen: (width || height) < units(400)     property string dataPath:  AppFramework.userHomeFolder.filePath("ArcGIS/AppStudio/Data")     property string inputdata: "KrugerNP2.mmpk"     property string outputdata: dataPath + "/" + inputdata     function copyLocalData(input, output) {         var resourceFolder = AppFramework.fileFolder(app.folder.folder("data").path);         AppFramework.userHomeFolder.makePath(dataPath);         resourceFolder.copyFile(input, output);         return output     }     Page{         anchors.fill: parent         header: ToolBar{             id:header             width: parent.width             height: 50 * scaleFactor             Material.background: "green"             Controls.HeaderBar{}         }         // sample starts here ------------------------------------------------------------------         contentItem: Rectangle{             anchors.top:header.bottom             // Create MapView             MapView {                 id: mapView                 anchors.fill: parent                 ColumnLayout{                                 anchors{                                     right: parent.right                                     rightMargin: 16 * scaleFactor                                     verticalCenter: parent.verticalCenter                                 }                                 Controls.FloatActionButton{                                                     id:locationButton                                                     imageSource: "./assets/location.png"                                                        onIconClicked: {                                                           if (!mapView.locationDisplay.started) {                                                               mapView.locationDisplay.start()                                                               mapView.locationDisplay.autoPanMode = Enums.LocationDisplayAutoPanModeRecenter                                                               colorOverlay.color = "steelblue"                                                           }else {                                                               mapView.locationDisplay.stop()                                                               colorOverlay.color = "#4c4c4c"                                                         }                                                     }                                                 }                             }                 locationDisplay {                                 positionSource: PositionSource {                                 }                             }             }             // Create a Mobile Map Package and set the path             MobileMapPackage {                 id: mmpk                 path: AppFramework.resolvedPathUrl(copyLocalData(inputdata, outputdata))                 // load the mobile map package                 Component.onCompleted: {                     mmpk.load();                 }                 // wait for the mobile map package to load                 onLoadStatusChanged: {                     if (loadStatus === Enums.LoadStatusLoaded) {                         // set the map view's map to the first map in the mobile map package                         mapView.map = mmpk.maps[0];                     }                 }             }             //! [open mobile map package qml api snippet]         }     }     // sample ends here ------------------------------------------------------------------------     Controls.DescriptionPage{         id:descPage         visible: false     } } ... View more

Hi there After working through the Load a Web Map and Display Device Location tutorial, I tried to add the ability to observe the device location onto a scene view but I get the error that locationDisplay is an "Invalid property name "locationDisplay". Taking a quick look at the API reference (LocationDisplay QML Type | ArcGIS for Developers ) it only mentions its use in a map view and is silent on whether it can also be used in a scene view. Have I missed an important step or is a very different process required to observe position in a scene view? ... View more