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Questions tagged [android]

"Android is a software stack for mobile devices that includes an operating system, middleware, and key applications," Wikipedia.

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21 views

OpenLayers GeoLocation.getPosition() is inconsistent

In my mobile application I am using OpenLayers and trying to capture current position of the user by using GeoLocation.getPosition() method. The method sometimes returns position and sometimes return ...
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0answers
31 views

Finding out whether lat/long position within Polygon using ArcGIS Runtime SDK for Android

I am working on a system that will work offline, so I exported my map data to a geodatabase. I need to check if the GPS coordinate is within a polygon of my geodatabase and return the record table of ...
4
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1answer
40 views

Relationship between Android bearing and iOS course?

I'm a mobile developer working on an Android and iOS app that displays the user's location and various POIs on a map. I've been comparing the location objects that I get back from Android and iOS and ...
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36 views

How can I calculate point's coordinates based on bounding box and tap click on phone screen? [closed]

E.g. I have bounding box [94818.24, 116189.125] [94818.914, 116189.8] and point's coordinate on my screen [695, 1082]. So how can I get a coordinate in CRS=EPSG:99781
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2answers
55 views

QField operating system

Does anybody know if Qfield can run on Ipad? My understanding is it was build to run on Android 4.3 or later version. Anybodu knows if it can run on with IOS?
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42 views

QField hyperlinks in Android

I am using QField for some mobile GIS on Android and would like to have a hyperlink in the attribute table that opens a file stored locally. If not in QField directly then in excel would work. None of ...
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21 views

ArcGIS Explorer App on Android not displaying all account maps on different phones

I have created an mmpk file for use on an Android phone. I am testing this package out on two separate phones: Phone 1 - Motorola Moto G6 running Android 9 Phone 2 - Motorola Moto G Play Running ...
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14 views

Retrieving which Polygon contains a point

I am using the ArcGIS Online and have a layer within a map. Within the layer I have several polygons. When I load the map via the com.esri.arcgisruntime library, I was able to load the polygons as ...
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1answer
63 views

Using getmapasync() function instead of getmap() function in Android to plot GeoJSON file?

This is the code that I have used to plot GeoJSON file in Google Maps in Android: mMap = googleMap; SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() ...
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0answers
26 views

Memory efficient shortest path algorithm for offline Android app [closed]

Finding the shortest path in a road network requires the road network to be loaded up in memory. Using Dijkstra's algorithm, for example, it searches through all the immediate road coordinates and ...
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0answers
19 views

Memory management in offline routing with n waypoints?

I am trying to build an offline routing system with a map database on a portable Android device. Since I am still doing some research, I am stuck on what I think is a fundamental problem. To find the ...
3
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1answer
76 views

Combining GPS and WiFi geolocation

I see that Google combines GPS with WiFi geolocation results to increase location accuracy. Does anyone know how it's done? How is WiFi information useful when it can have 10m+ accuracy? Is it only ...
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1answer
38 views

Easytouse Android app to visualise offline maps [closed]

I need to propose an application android, ultrasimple of use which proposes to visualize various layers offline (french Scan25, Orthophoto). The idea would be to create mbtiles (with QGIS, Mobac, ...
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33 views

QField does not show Bluestacks-Windows shared folder

I'm trying to use QField in the Android emulator Bluestacks for Windows 10. When I try to open a project, indeed I can access the natives samples projects because they are stored on another directory, ...
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0answers
49 views

Using QField in an Android emulator for Windows 10

I would like to use the QField application in a free and user-friendly Android emulator for Windows 10. May you recommand one ?
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0answers
91 views

Creating and saving OpenStreetMap locations within GeoJSON file?

I am not experienced in working with OpenStreetMap, but I am wanting to collect points. All points that the user collects will be saved inside a GeoJSON file, however whenever I use this, the file is ...
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97 views

Start a tile server on Android app

We want to have a offline Leaflet map on mobile. For this we want to use some kind of Android app which will serve as a tile provider when offline. The Leaflet will refer to this Android app as tile ...
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1answer
127 views

Difference between MapBox mbtiles and offline mbtiles for MapBox Android SDK

I know what have some difference between MapBox mbtiles and offline mbtiles for MapBox Android SDK. In offline mbtiles for SDK besides tiles contains: Style JSON. All fonts and icons associated ...
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33 views

Filtering Custom Mapbox style implemented in Android

I created Custom Mapbox styles by importing Tilesets containing custom point locations in it.I implemented the same style in my android app.I can access the data inside each points by using ...
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0answers
107 views

calculating HRMS using NMEA sentences including GPGGA , GPGSV, GLGSV, QZGSV,QZGSA, GPGSA?

I have NMEA sentences including GPGGA , GPGSV, GLGSV, QZGSV,QZGSA, GPGSA and GNGSA. my goal is to achieve HRMS accuracy meter. produced android devices for special intent gives GP/GN GST nmea message ...
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0answers
26 views

Bringing GeoServer data into Mapbox in Android

I have some point locations and polygons published in GeoServer. I am creating an Android Application to display those data using Mapbox. Is there a way I can do that? (I am completely new to this.)
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0answers
191 views

RTKGPS+ : Could we use the mobile device as a rover?

Using an Android (version 9) based smartphone, I installed RTKGPS+ ( https://github.com/eltorio/RtkGps ) from the play store. I wonder if it's possible to use the internal GPS chip of the smartphone ...
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0answers
159 views

.svg image is not loaded into webview in android

I'm using leaflet and trying to load .svg image on webview. `//Create the bounds and image to add. var imageUrl = mapData.plan.image; var imageBounds = [[mapData.plan.size_x, 0], [0, ...
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0answers
164 views

MapBox SDK load local MBTiles

does anyone know how I can load local MBTiles from the device storage using the MapBox SDK? The vector Tiles come from this Website: https://openmaptiles.com/downloads/planet/ The same page offers ...
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16 views

Android laggy map after adding vector objects

I'm using GLMap to render over 5000 vector objects in an Android Application. Here is the framework I'm using: https://getyourmap.com/ Currently, I have Shapefiles which I convert with https://...
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1answer
91 views

Running QField without a Google account [closed]

I'd like to give QField a try but I can not install it from Google Play Store. I do not want to create a Google account for privacy concerns. Is there a possibility to install QField without using ...
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68 views

Android Library to convert ESRI Shapefiles to GeoJSON

I'm building an Android App for display ESRI Shapefiles but unfortunately, there are only a few free SDKs which support Shapefiles. Most of them working with GeoJSON, so now I'm looking for an Android ...
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0answers
145 views

How to add my photo in KML with Android?

I have tried with overlay and Placemark, I store my photo and KML together in one KMZ but when I open with Google Earth, I only can see the text in the location, not the photo. Here is my code: [?...
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0answers
26 views

Auto delete 5th record while inserting 6th record of polygon to SpatiaLite table

I am having problem while inserting 6th record to SpatiaLite table it auto deletes 5th record, and after that it is ok. I am using SpatiaLite database to insert some polygon using Google Maps API in ...
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1answer
44 views

Seeking GIS Navigation App for High Accuracy Data? [closed]

Are there any mobile GIS applications that I can use to navigate to high accuracy data on android? I would like to load layers - a .shp or .kml and use the map to navigate to points. It needs to be ...
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0answers
134 views

Displaying real-time GeoJSON data in Android Google Maps

I'm building my first Android Google Maps app and I have some questions about how to add real time data. I want the marker of every point changed the color or the icon when the properties of the ...
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0answers
26 views

Installing QGIS Android Nightly?

I have a Samsung Galaxy Tab2 10.1 running Android 4.2.2. Device is GT P5110. Since 2013 I have, without any problem, been using QGIS. I installed from QGIS nightly at the time after finding the QGIS ...
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0answers
63 views

Using both Google Maps and Carto in Android App?

Can I use Google Maps as a background to an Android App and carto for the source of my data? I know is strange that I ask. But I think to use both solutions is better. Google Maps is a very good and ...
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0answers
215 views

Can I use SpatiaLite database using Room for Android?

I want to use the SpatiaLite database using Room library for my project. Is it possible to do? I have heard there is a custom open helper for the Room which might help to use the SpatiaLite db. But ...
0
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0answers
36 views

Imported .shp files will not load correctly in Android app MapIT

I am able to import .shp files created with ArcMap, but the features do not appear on my map. When I zoom to them I am taken to the North Pole. I assume this is a projection issue. MapIT has a much ...
0
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1answer
71 views

How can I make GeoServer's WMS layer .jar file in Android development Android studio

I'm new in Android development in geoserver's WMS map. Can I get .jar file of GeoServer's WMS layer? I couln't open it though I tried https://github.com/shalperin/android-wms.git
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1answer
234 views

Importing shapefile into Mapit

Unable to import an ESRI generated shapefile (just a simple polygon layer) into the Android app. MapIT does not recognize the file(s) in the upload screen, I can not select nor view it. I have ...
0
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1answer
72 views

Importing Several Latitude and longitude Points From a Smartphone App into a CSV File

I am using a GPS App on Android that export my location as a latitude and longitude values. For each location it exporting a separate data set: Latitude (LAT): 32.05796 N 32°3'28.6578" Longitude ...
3
votes
1answer
294 views

Why hybrid GIS application gets GPS position only from Google & not from the device

I have built a GIS application using Leaflet on the web, after I put this web application to run on Android as a hybrid GIS application I made the application work with offline basemap (offline usage ...
2
votes
1answer
84 views

Does longitude/latitude info come directly from GNSS chip on Android devices?

I'm trying to directly communicate with the GNSS chip on my device and I am not clear whether the RAW GNSS information is coming directly from the GNSS chip or not. I have used the application ...
0
votes
1answer
162 views

Can Qfield be used with external GNSS service?

I'm currently testing an external GNSS service on my mobile device. It produces RTK corrected GNSS signal that is distributed over bluetooth as NMEA format. Is Qfield able to read an external GNSS ...
3
votes
1answer
101 views

Run GDAL on android and perform operations

Could one run gdal on android devices to perform some GIS operation, like viewshed, contours, etc?
1
vote
1answer
319 views

Openlayers 3. OnClick on touch device not triggering perfectly

I have the forEachFeatureAtPixel function and try to trigger an event on click on a point layer with a custom icon. However, the performance on touch devices is really bad. I need to click several ...
1
vote
0answers
58 views

Problem with overlapping transparency

I am making an Android app that has bathymetric lake data on a google map. I am new to GIS work. I get this info from the state of nebraska as an already formatted kml file. In the file they simply ...
1
vote
1answer
231 views

Google Maps Android SDK - Get features based on user location

I am using Google Maps Android Utility SDK, using GeoJSON features. I would like to, based on the user Location (which I already have) determine the features that contain this point. Does Google ...
4
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3answers
2k views

Render vector tiles to PNG on Android & iOS

I have an Android + iOS app using Google Maps SDKs to display a map, and I'm in the process of setting up an OSM tile server. I'm evaluating the possibility to use vector tiles instead of raster, but ...
3
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0answers
555 views

Data collector mobile app with mapping capabilities

At work we have a GIS solution platform with 50+ GB of data in a Postgres cluster. Almost all tables have spatial columns. We have several clients consuming this information for different needs. I'm ...
0
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2answers
518 views

Convert CSV GPS Logs to GPX on Android (GPSBabel on Android)

I bought a GPS Logger - a small device that will, while turned on, log the GPS Coordinates to a SD card every second. It has no display and no other UI than 3 buttons and a couple of LEDs. The Device ...
7
votes
2answers
6k views

GNSS raw measurements on Android: Does real time/post processing Differential techniques possible?

In the recent months we all saw kind of breakthrough in Android Smartphone GNSS receivers: GNSS raw measurements are now accessible, and this is significant since those are the most common form of ...
1
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0answers
57 views

load svg file in esri map in arcgis android sdk [closed]

How to load .svg file in Esri map android sdk version 10.2.9?