topic Re: How do I load offline TPK? in ArcGIS AppStudio Questions

How do I load offline TPK?

MervynLotter — Mon, 01 Jan 2018 20:51:35 GMT

Hi there

I created a small TPK using the Tile Package Kreator. I then downloaded the AppStudio Tiled Layer sample app and tried to load my offline TPK - but I was unable to do so, not sure how to load it as sample shows how to load an online TPK.

The specific code to load URL was written as:

Map {

            id: map

            Basemap {

                // Nest an ArcGISVectorTiledLayer Layer in the Basemap

                ArcGISVectorTiledLayer {

                    url: "http://www.arcgis.com/home/item.html?id=dcbbba0edf094eaa81af19298b9c6247"

How would I change this to reference a TPK stored locally? The TPK will for now reside in the app's Data folder. Ideally I would like a user to browse to a folder where the TPK is stored but I wont try and attempt to do so now.

Thank you.

Regards

Mervyn

Re: How do I load offline TPK?

nakulmanocha — Sun, 12 Dec 2021 11:07:56 GMT

Basemap {
    ArcGISTiledLayer {
        TileCache {
            path: dataPath + "tpk/SanFrancisco.tpk"
        }
    }
}‍‍‍‍‍‍‍

More info can be found here

ArcGISTiledLayer QML Type | ArcGIS for Developers

Re: How do I load offline TPK?

MervynLotter — Tue, 02 Jan 2018 21:04:17 GMT

Hi Nakul

Thank you for responding. I have tried this approach but my offline TPK does not load - it does not even give me the grid view with the Esri licence statement that I get when the online map loads.

I then added a property statement for the data path but this did not help. Could you please look at the below code and suggest where I may be going wrong?

import QtQuick 2.7

import QtQuick.Controls 2.1

import QtQuick.Controls.Styles 1.4

import QtQuick.Controls.Material 2.1

import ArcGIS.AppFramework 1.0

import ArcGIS.AppFramework.Controls 1.0

import Esri.ArcGISRuntime 100.1

App {

    id: app

    width: 414

    height: 736

    property real scaleFactor: AppFramework.displayScaleFactor

    property string dataPath:  AppFramework.userHomeFolder.filePath("ArcGIS/AppStudio/Data")

    // Create MapView that contains a Map

    MapView {

        id: mapView

        anchors.fill: parent

        Map {

            id: map

            Basemap {

                ArcGISTiledLayer {

                       TileCache {

                           path: dataPath + "hoekwil.tpk"

            initialViewpoint: ViewpointCenter {

                center: Point { x:22.6; y: -33.9; spatialReference: SpatialReference { wkid: 4326 } }

                targetScale: 50000

        // Busy Indicator

        BusyIndicator {

            anchors.centerIn: parent

            height: 48 * scaleFactor

            width: height

            running: true

            Material.accent:"#8f499c"

            visible: (mapView.drawStatus === Enums.DrawStatusInProgress)

Thank you.

Regards

Mervyn

Re: How do I load offline TPK?

jaykapalczynski — Sun, 12 Dec 2021 11:07:59 GMT

How can you load a TPK from a button or drop box....

I initially load a TPK file into my app as seen above in this post. But I want a button to change that to a different tpk on the device....How do I do this...

I tried this and nothing...errors....

// SNIP INSIDE BUTTON CLICK

var layer = ArcGISRuntimeEnvironment.createObject("ArcGISTiledLayer");
layer.url = AppFramework.userHomeFolder.filePath("ArcGIS/AppStudio/Data/QuickReport/backgrounddatatpk.tpk");
mapView.map = layer;‍‍‍

// SNIP END OF BUTTON ON CLICK EVENT‍‍‍‍‍‍‍