Questions tagged [android]

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

101 questions with no upvoted or accepted answers
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807 views

OSMDroid android app zoom in without changing tiles, is it possible?

I am developing an android mobile mapping app using OSMDroid 4.3. I have established a basemap using arcgisonline as my tile server. String[] urlArray = {"http://server.arcgisonline.com/ArcGIS/rest/...
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0answers
68 views

Qfield crashes when vector elements are touched

I have a problem with Qfield. I'm using qfield 0.8.8 on OS android 5.1.1 After having installed this Qfield version it does not run. When I touch a polygon or a line or a point it crashes; in ...
3
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0answers
42 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 ...
3
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1answer
174 views

Run GDAL on android and perform operations

Could one run gdal on android devices to perform some GIS operation, like viewshed, contours, etc?
3
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0answers
13k views

Can I use google maps navigation within my app

I am considering building an app which includes google maps. The app functions by tracking the GPS location of the vehicle and showing it to the respective user on the Android app with some additional ...
3
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0answers
2k views

Explaining ${z}/${x}/${y}.png for offline map?

Im trying to build map with OMS under Linux (Ubuntu) to made an offline apps. Im working with Ionic and building just for Android for write now. I have the base code: var map; function init(...
3
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0answers
322 views

QGIS - Android, loading a .tif file

I have a .tif file I would like to use as my base map on the Android version of QGIS. However, when I try and load it as a raster layer, it states that this is not a correct raster source. Is there a ...
3
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0answers
836 views

Android Apps to edit WFS-T

Are there any mobile Android Apps where you can edit the Features served via a WFS-T?
2
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0answers
88 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 ...
2
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0answers
80 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 ...
2
votes
1answer
3k views

Maximum GPS-based location Sampling rate of smartphones

I am working on Android application that needs to take GPS locations at the rate of 10Hz to 1Hz. I tried it by setting 100ms for time interval for requestLocationUpdates(_, 100, _, _) function. But ...
2
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0answers
365 views

Getting Latitude and Longitude using GPS Averaging app on android phone?

I am trying to get latitude and longitude of radio stations across my country (Liberia) using an Android phone. I downloaded GPS Averaging but I keep getting an error which says: NO GPS SIGNAL How ...
2
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0answers
1k views

Android WebView doesn't display OpenLayers 3 map

I'm trying to display an OpenLayers 3 map in an Android WebView. Only the zoom controls and the copyright hint are displayed, the map itself not. JavaScript is enabled for the WebView, right to access ...
2
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0answers
410 views

How to add multiple stop points for routing using ArcGIS in Android

I have a project where in I have a source and a destination, but in between there can be any number of stop points. I need to display a route from source to destination covering all the stop points. ...
2
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0answers
137 views

Graphhopper No-go areas routing

I am creating a simple offline navigation app in android. I have camera information(coordinates and range) and i would like to navigate the routes to avoid being caught on cameras. I have seen great ...
2
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0answers
35 views

Accessing Layers Through an API?

So, I have reason to believe that this information is not available. Nonetheless, it involves using Android, and preferably the Google Maps API (though other maps may have APIs which supply this data, ...
2
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0answers
726 views

how to transfer GPS device coordinates into mobile android app?

i'm trying to make an android app that collects data field in high accuracy, since the phone native GNSS doesn't provide highly accurate coordinates, i want to use Coordinates provided by a real GNSS ...
2
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0answers
209 views

Google Maps Licensing

Sorry if this isn't the right place to ask this, I've tried looking around for support forums and have found none. I had a question regarding the ToS of Google Maps/Earth, it can be found here: https:...
2
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0answers
333 views

IS it possible to use geoserver WFS-T services with ArcGIS android SDK?

I have to use ARCGIS SDK in my project and I should edit some layers. In fact there is a sample which I can learn how ArcGIS API for android works.In it we the editable layers are from a service like ...
2
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0answers
40 views

Is there a way to make the controls on QGIS android larger?

Is there a way to make the controls on QGIS android larger? e.g. When typing text into a field in the table view it is currently very small. I also have a issue/bug where the panels (layers, gps ...
2
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0answers
1k views

localization by trilateration ( weighted nonlinear least squares )

I am writing an app for beacon localization and I am looking for a formula which, given beacons of known positions and distance from target, finds the target position. eg. given beacon1 located at (...
2
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0answers
531 views

GIS SDK for Android

Im looking a gis sdk for android with these abilities: open source or free to use (consider it if you know one) can read and write shape files can use scalable vector graphics (svg) (optional) can ...
2
votes
0answers
365 views

Looking for a good solution to have GPS position on KMZ files on Android platform

I'm looking for the best solution / app on the android platform to show my GPS position over a KMZ file, possibly offline. Here is what I've tried to do: Google Earth Android app I downloaded KMLZ ...
2
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0answers
332 views

QGIS on Android: Access files on Google Drive

I have a set of shape files that I keep updated on Google Drive. I have just installed QGIS on an Android tablet but I can not figure out how to get access to the google drive from the file menu. ...
2
votes
0answers
837 views

Openlayers2 and Google Maps Api aren't working on Android Platform

I have application that uses OpenLayers, Google Maps API and GeoServer My application is running at Web browser and when I try to run at Android tablet (using Phonegap), It runs but OpenLayers ...
2
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0answers
190 views

Developing Carto Mobile App

I have the project to develop a mobile application (Android) being able to get offline maps, go on the field, collect datas about the area we're at and then synchronize it with our data server when we'...
2
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0answers
905 views

popular solution for display both tiles and vector data in android map app

We are planning to build a location based app like google map in android. We have some experiences in the PC development,that's to say we have a similar javascript api like google map javascript api, ...
2
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0answers
203 views

QGIS on android4 with bluetooth GPS

I'm trying to set up a moving map on my tablet (asus, Android 4). I've installed QGIS (latest version), which works. I've got a blue tooth external GPS, which I've paired to the tablet. However, I ...
2
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0answers
944 views

How to draw an overlay using KML on our own app in Android?

Repost from here I want to draw an overlay using KML files, just look like below but on my own app in MapActivity. 31.kml, display district in Jakarta, Indonesia or the example that I get from ...
2
votes
0answers
708 views

web service to find the shortest path

if you have any idea that can help me I would be grateful :):) So i should create a web service wich will communicate with my android application .in my android app the client choose two point start ...
2
votes
1answer
1k views

Looking for RMaps SQLite format details

Locus Maps and Rmaps Android maps support an offline sqlite Format called Rmaps. I am trying to find the format details and how its organized. I couldn't, is there any dependable documentation online?
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0answers
117 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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0answers
151 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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0answers
94 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 ...
1
vote
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 ...
1
vote
0answers
67 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 ?
1
vote
2answers
259 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 ...
1
vote
0answers
185 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 ...
1
vote
0answers
297 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 ...
1
vote
0answers
267 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
295 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 ...
1
vote
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 ...
1
vote
0answers
94 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
0answers
195 views

Calculate minimum Traveled distance from L Latlng in T time

I want some functionality in my Android/iOS application i.e. U user is travelling to L location, So when the U is 15 minute away from the L location he/she will get some Notification. What i tried so ...
1
vote
0answers
1k views

Want to access android location services in a leaflet.js project running in a webview

I am running leaflet.js project on my android app using a webview. Everything is great but for current user location leaflet uses GPS because it runs in a webview and as we know webview is extention ...
1
vote
0answers
909 views

How to properly store QGIS Qfield folders on an Android SD Card?

I am using QField on an Android 7 tablet with SD Card. It works very well when I store my QField folders in the onboard storage in tablet/Android/Data/ch.opengis.qfield/files but if I store it in ...
1
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0answers
882 views

Weird polyline mapbox when drawing on android from pgRouting

I am creating android apps which can show the route that generated from pgRouting, and return geojson file. I already can draw the polyline on the web with mapbox-gl js with this code: var geojson = ...
1
vote
0answers
579 views

Osmdroid Cache manager doesn't work

I'm using osmdroid and osmdroid bonus back and i can't cache my tiles for offline use. I followed this url: https://github.com/osmdroid/osmdroid/wiki/Cache-Manager This is the code that i use to ...
1
vote
0answers
524 views

How to show GPS latitude/longitude in input in Android application (webview)

I develop an Android application with jQuery Mobile 1.9, Cordova 2.4 ... I want to display the coordinate of GPS (lon,lat) in input like in the pictures, I'm tired with this code but it can't display ...
1
vote
0answers
510 views

QGIS on Samsung GT-N5110 - invalid Qt version

I want to install QGIS Experimental on my Samsung GT-N5110 tablet. When opening QGIS cannot open additional libraries and there is an error message: "Invalid Qt version" and QGIS crashes. I use ...