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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How to display WMS layer from local geoserver in mobile application with Cesium Javascript Library?

I need to display WMS layer from local geoserver in mobile application with Cesium Javascript Library. But I don't know how to do it. Can anyone help me? Thanks.
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46 views

Calculate meter offset around decimal degree position

I have a position given in decimal degrees (x.xxxxxxxx and y.yyyyyyyy). I need to draw a rectangle around it. The center of the rectangle matches the position. The dimensions of the rectangle is given ...
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1answer
48 views

Better GPS accuracy in Android application

We are looking for ways to read higher GPS accuracy (less than 1 m) in our Android application. We have tried with couple of mobiles having L1 frequency and supports GPS , GLONASS, Galileo etc but ...
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35 views

Can't find geotools class in jar file/Maven dependency Android app [closed]

I am creating an Android app and using an extension from Maven dependency. This extension use geotools classes but when I compile and execute the app I have the following error: 020-04-20 21:51:52....
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How to divide / split / cut polygons in Android?

I am developing a GIS app in Android. I have checked the GoogleMaps and OSM (OSMDroid) libraries and I am able to create and edit lines, polygons etc. but I was not able to divide a polygon, with a ...
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How to visualize markers on navigation on map?

I want to create a android application, to visualize road anomaly on map, like I annotate roads. So I used mapbox to do that, but I when I run the navigation, i can't visualisate the markers that i ...
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180 views

Can I use Geotools in Android Studio?

I want to use Geotools in Android Studio but get this error: Could not resolve org.geotools This is part of build.gradle allprojects { repositories { maven { url "http://repo.boundlessgeo.com/...
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26 views

Can't enter coordinates on Samsung phone for collection with ArcGIS Collector

I am using a hand-held GPS to collect accurate location coordinates of a given feature in the field. Later, when I have access to a wireless network, I'm using my Samsung phone (Galaxy A8) to enter ...
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What is wrong with this Path in Carto Map SDK?

I am using Carto Mobile SDK to develop an Android-based Navigation Application (using Java). I have been following the documentation step by step. Right now I am adding a 3D Vector Object on the map. ...
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1answer
232 views

How to use ground overlay google map android for polygon area to fit the map image in it?

I have a park area that is not rectangle or a simple shape. It is just like polygon area. I could load sample image on it for testing, in my android app. There it is : mGroundOverlayRotated = ...
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111 views

QField does not get the GPS location on Android

I am using QField on three Samsung Galaxy S5 tab tablets for a field work. I created a QGIS project (with project and layers in the same CRS). I downloaded QField on the tablets and created a QField ...
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16 views

How to send Feature object to Activities?

I try sent Feature object from one Activity to Fragment. But I have exception serialize object. Because Feature object is not serialize. Bundle args = new Bundle(); args....
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2answers
53 views

GPX route generator for android

I am looking for a free, easy to use android app or mobile friendly website to plan a route and save it in GPX format. So far I have seen https://mapstogpx.com/ which unfortunately does not work with ...
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45 views

Finding map zoom level on basis of image width & height or worldFile data or on basis of field area in Android

I am trying to render the satellite images on google map in Android, and I am able to do that but the issue is, some images are not getting rendered properly because of the zoom level. Every image ...
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1answer
47 views

qgis2threejs navigation Android

The navigation of a 3D qgis2threejs map for an Android tablet is not optimal. Test on 7 and 10 zoll. Problem: If I want to zoom in or out with two fingers the zoomlevels are to big. It should be small ...
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80 views

Exporting KML/ SHP/ EXCEL Files from Google Maps [Android version]

I want to export my pin locations using Google Maps [ Android version] and save the layer as KML /SHP/EXCEL in my phone. Is this feasible using Google Maps or are there any other applications which ...
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118 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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35 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 ...
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1answer
102 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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0answers
65 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
341 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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0answers
90 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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1answer
324 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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46 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
21 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 ...
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1answer
291 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
79 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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74 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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170 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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2answers
283 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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194 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
314 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
295 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
319 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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1answer
103 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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0answers
102 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
274 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
27 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
46 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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62 views

Imported shapefiles will not load correctly in Android app MapIT

I am able to import shapefiles 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 ...
0
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1answer
104 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
388 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
140 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
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1answer
319 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
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1answer
146 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 ...
2
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1answer
335 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
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1answer
184 views

Run GDAL on android and perform operations

Could one run gdal on android devices to perform some GIS operation, like viewshed, contours, etc?
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1answer
514 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 ...
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0answers
100 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 ...
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1answer
344 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 ...

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