I'm developing an Android app that tracks a number of people through GPS with their legal consents.
For some reason, I can't seem to find any related topics in Google or maybe I just can't construct the right words.
Google Maps and others are already setup. I only need the approximated LatLngs and some basic infos from those people in-track.
Where do I start? or any recommended links?
If you're tracking multiple people with their consent, then I'm assuming that your app is running for each of the users on their individual device(s). If that's the case, use the Android geolocation API to get the device's LatLong and publish it to a backend on the cloud periodically (say every minute or so to avoid too many writes to the backend). You can use a key/value storage to store the coordinates, where the keys are the user identifiers, and the value is the last lat/long (I'd also suggest storing a timestamp for the last update to allow for identifying stale data).
You can then query/subscribe to the backend to retrieve the last lat/long of (a) specific user(s), and then use it to create a custom marker on the GMap API.
We're working on a platform that uses a similar logic but for a different use-case, calculating proximity to specific locations and providing actions based on the proximity.
I hope this helps. We're using Ionic/Angular for our build platform so we're using PhoneGap API's to access the GeoLocation services of the device.
As far as I know you can do below things,
If the two uses have the same application, they should push their location (obtained from the Cell ID or GPS) to a Web Server (which you will handle). You can then exchange the location coordinates using your web-service.
For reference, have a look at this link :
http://msdn.microsoft.com/en-us/library/ms980225.aspx#v35go_topic2
Another the thing which I want to recommend you why don't you try to do this using google+ apis. Little googling will help you.
Related
I'm looking to create an app for Android that checks a users location history to draw some conclusions of their daily life and identify behavioural patterns.
The Visits Location Service for IOS seems perfect for this kind of work as it logs location history separately, and then allows apps to access that data, but I'm struggling to find an equivalent for Android. I've looked into different Google API's, but nothing seems to fit the description very well - ideally, I could use the data already gathered by Google Timeline in order to avoid having the application active all the time, but so far I haven't found any way to access that data.
So, is there any equivalent for Android?
What I need to do is share location from one android device and show it on another device(not necessarily android, even web would be fine). I can think of following solutions as of now.
Use GPS to get latitude and longitude from android device and send it to a server after fixed intervals(eg. 5 sec) which will store it in database(Can we use firebase for this purpose instead of writing full server side code from scratch?). The client which needs to show the location can now request data from server every 5 secs and plot the location on google map. My question is, is this approach scalable?
Is there some Google API that allows real-time location sharing out of the box? I tried searching for it but couldn't find anything like that. Does something like that exist?
Yes, you can use Firebase realtime database for sharing the location.
No, there is no such thing as far as I know.
You may use the Google Places API for Android. For example, if you wanted to get a latitude/longitude based on a user inputted address, you could use the Autocomplete service:
https://developers.google.com/places/android-api/autocomplete
I don't think you will have the scalability issue you imagine, because the strain for finding coordinates would be on a Google server, not yours, as well as the mobile device of your users. You would only need to worry about storing coordinates in a central database somewhere.
So, I am thinking of creating this app which is based on the location, (not a dating app) for android, and I got stumbled on a question, can we use google maps api to get the location of the current user using my app(i know we can do the first one) and then based on that location, find the other users using that app in the same vicinity, like in 1-5km's or some distance, can we do that? If so, can someone give me rough idea on doing that? Like where should I get started and everything, because I am a newbie and currently in the "learning" phase of android. Just the rough Idea will be enough.
Any way Android devices unable to communicate on air in such way. You will need server. And you will need get GPS coordinates of your users, send them to server periodically. Filter last coordinates on server side, and by user's request send back list of coordinates people near you. And with use of Google Maps API (or another map service) show them to user. Its in general.
Is there any way to see, if certain coordinates are included in a CLPlaceMark?
More specifically, after I get user's A location and know in which city he/she is, I need to have another user's B coordinates and check whether they're part of user's A city...
Any ideas?
Were would you be doing the compare? The google geocoding / reverse geocoding api is available for android, ios, and a simple web api. If you use the same service for all clients, that should provide a consistent location name which you could to check if any two users are in the same city.
It would probably be simplest to just use the web api for all cases.
I am currently working on an android application for my class. Our app is to help friends find each other. However for us to do so we need to exchange location data between those 2 users.
I want to know if there is a way for android to send/receive location data to another user with the same app, without having to use an intermediary server.
No there is not, you have to have a server implementation in order for the user to store their location and be able to pull down their friends locations.
However, you might be able to set this up pretty simply with a service like Parse. They make it easy to store data for your app without having to build your own back end.
I'm doing similar application. And you need a intermediary server. You must send the coordinates from the mobile to server. And then you must access from the other cell to server (using a webservice), and download coordinates.