gps

  1. solfinker

    Android Question GPS Raw Data

    How can I read GPS raw data? I need GPS information in RINEX format, that is, measurements from several satellite constellations. Thank you.
  2. Pedro Caldeira

    Android Question Problems with Fused Location

    Hello All, I am having a strange problem with Fused Location. In my App, I have a service that every few seconds retrieves the coordinates from the fusedlocation Every once in a while, specially in one costumer, the coordinates seem to freeze and even if the user retrieves the coordinates in two...
  3. M

    Android Question Access_Mock_Location permission issues

    Any app that lists ACCESS_MOCK_LOCATION in it's permissions, will be listed in developer options as a Mock Location PROVIDER. It gets listed at app installation, done by the Android operating system. If the app does not provide software support for injecting mock locations into the android...
  4. rleiman

    Android Question [Solved] - BearingTo from GNSS returns negative results for locations West of my location.

    Greeting Everyone, I'm trying to use BearingTo from GNSS, but it returns negative results for locations West of my current location. These results also include locations such as Northwest and Southwest of my location. I'm probably not using BearingTo correctly. In that case, I was expecting it...
  5. rwblinn

    B4R Library rGPRMC

    rGPRMC is an open source B4R B4XLib for parsing the GPS NMEA RMC sentence message. Obtain Lat / Lon position, Direction Indicator, Speed, Course an Timestamp. Addition functions: calculate the distance between, the course to for two Lat / Lon positions or time difference. Attached rGPRMC.zip...
  6. amorosik

    Italian [B4A] Come capire il motivo per cui app viene stoppata?

    Dispongo di un app il cui obiettivo e' leggere la posizione via gps telefono ed inviarla periodicamente, ogni minuto, al sistema centrale, un pc che raccoglie i dati e li archivia L'app dovrebbe rimanere permanentemente in lavoro, h24 Su una decina di telefoni uguali, capita che un buon 50%...
  7. A

    Android Question FusedLocationProvider question

    Hi all. I have a question about FusedLocationProvider. I granted permission to use Location in my app, it works fine. Now I have a situation with one phone where GPS itself is turned off (the that under Connections settings). So my code tries to connect to FusedLocation Provider, connection is...
  8. M

    Android Question Error in this line: Starter.rp.CheckAndRequest(Starter.rp.PERMISSION_ACCESS_FINE_LOCATION)

    Hello, please apologize my english, i am doing an B4A app and i need to track use gps coordinates. I did it in the past without problem, but now i am getting an error exactly in this line: Starter.rp.CheckAndRequest(Starter.rp.PERMISSION_ACCESS_FINE_LOCATION) I added the standard starter...
  9. Marcos Alves

    iOS Question B4i Location Services

    Hello All, I'm using this sample code to implement location services in an app: https://www.b4x.com/android/forum/threads/location-gps.46148/#content I notice that, in the sample, when locManager.Initialize("LocManager") is called , Iphone automatically shows a message requesting...
  10. amorosik

    Italian [B4A] Programma di lettura dati gps che si blocca - perche' ?

    Dispongo di un programma che, usando come base la lettura gps indicata da Erel, registra la posizione ogni 60 secondi su file di log locale Dopo diverse ore di funzionamento corretto, e solo su alcuni telefoni, l'app improvvisamente si spegne Leggo su alcuni articoli che potrebbe essere...
  11. S

    B4A Class Open Street Map viewer - GPS

    Hi, This b4Xlib contains a custom view (cvMap) which can display Open Street Map. The tiles are retrieved from the internet and cached in a database. You can add shapes and images on the map. UI : - Lat/lng Center of the map - Zoom Level - Compass Direction with rotation - Scale - Button...
  12. M

    Android Question [SOLVED] I need a GIS developer!

    (sorry for my english, it's just google translate) Hi! I hope I am not breaking any forum rules with this post. I require a developer to make an app that allows drawing georeferenced polygons, that is, that the app shows a georeferenced photograph (the orthophotos already exist) and several...
  13. M

    Spanish [SOLUCIONADO] Requiero un desarrollador GIS!

    Hola! Espero no estar rompiendo alguna regla del foro con este post. Requiero un desarrollador que haga una app que permita dibujar polígonos georreferenciados, es decir, que la app muestre una fotografía georreferenciada (ya se tienen las ortofotos) y sobre ella se dibuje (punto a punto)...
  14. Magma

    Vehicle GPS Realtime Tracking/Monitoring - Big Project's source for sell

    Well... Hi to all... First of all - my english not so good.... Sometimes you want to share something for free - but sometimes feeling that job you ve made must be payed... I am not so good on marketing - but 6 months of work (real: may be 2 years at total)... not little... I am selling the...
  15. Biswajit

    B4A Class [B4X] GPSPolyMap - check if GPS location is inside a polygon

    With this class, you can check if the GPS location coordinate is inside a polygon. You can use this class to check whether the user is inside a building, shopping mall or any custom shape. This class is only for B4A and B4I. Here is how can you get the coordinates of an establishment (school...
  16. A

    Android Question Timer and GPS timer at the same time in service

    Hi. I'm trying to have two timers working at the same time (GPS timer and another timer). But after a while, only keep working the another timer, and the GPS timer is OFF. it may be because one timer cancels the other? I attach the log (GPS Recibido is when i reseive GPS_LocationChanged and...
  17. M

    iOS Question [SOLVED] GeoFence and closed app

    Hi everyone. I was wondering if it's possibile to set up a geofence that when you enter (or exit), triggers an event catchable with the app closed. (like Apple "Find My" app, that can send a notification to you when a friend leave/arrive a place). I'm not knowledge about this things , so I'm...
  18. Marcos Alves

    Android Question GPS and WebView

    Hello all, I'm trying to use a webview that access a site which requires the location, but besides I requested and allowed PERMISSION_ACCESS_FINE_LOCATION in the app I'm still getting the message about gps authorization required inside the webview - there is no any pop up to request that...
  19. M

    iOS Question Gps is not very accurate

    Hi, I’m using the library iLocation, with the various PlisExtra from Erel’s tutorial about background tracking. The problem is that it isn’t very accurate. There is something like “Fine location/Coarse Location” of b4a? Or a parameter to set it to be more precise ? Thanks !
  20. rleiman

    Android Question [SOLVED] - GNSS - Keeping the GPS on when exiting my app

    Greetings, I'm using the GNSS library and would like to know how to prevent it from turning off the GPS when exiting my app or pressing the phone home button. We need to make sure the GPS stays on even if the app is not showing on the screen. All of the GPS coding is in the Starter module...
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