How can I receive and store user location data so that I can add it to a map?
Have been studying MapKit and the UserLocation code from Apple. What I want to do is get all user's locations and plot on a map - a worldmap with dots showing the combined user base locations - like several apps we've all seen. NOT looking for code, need to do my own work, just if someone could share how they would tackle this..Thanks! Do I gather the user location somehow - add to a plist and .... Not sure...
You should look at the Core Location APIs as well as map kit, you can find a way to get user locations there. Store the results in an array, with a plist to save them if you want, and put annotations on your map to show all locations.
If I'm understanding your question correctly, you're going to need to build a couple web services:
1) that the assorted clients can send their location data TO, and that will then store it in a database. Then
2) when any user needs to open the map view, they'll request the full set of data so that you can then use that data to plot the points
Related
I am trying to calculate how many miles away the user is from another user. Like on Tinder.
I am using Firebase to store all of the users data related to the app.
What would be the most secure way to do this without storing the actual users current location?
You need to get the current location, and after calculating the distance or after the user logs out, delete the location from the database. That is the only way to do it.
Note that this will work only if both users are online at the same time.
I am in the process of building an app, for the record I am using the code from the ECSlidingView controller. I would like for my app to use the GPS to pull data from my web interface letting the user know that they can do certain things at a given location. So for example, I have a user go to a store and lets say I want them to make a payment at that location, it will given them that option. Or if the store doesn't offer payment through the app, I disable that. What would be a good way to go about this?
You could try using CoreLocation but you might have trouble getting accurate location inside (it will most probably use wifi or cellular info so the accuracy might not be what you expect). Then, when you get the location, issue a request to your service passing latitude and longiude you receive from CoreLocation. There, you should search by location to retrieve possible matches - consider returning muliple store infos for nearby stores due to the accuracy issues.
I am a newbee to Iphone App Development and struggling with my first application.
I have a database with few address in it. All I have to do is get the current location and pick the closest three address from the database and of-course have to show the current location and the selected three nearest address on a map with directions on them.
I had a look at the Xcode frameworks LocateMe, CurrentAddress and MKReverseGeocoder Class Reference.
But then not sure how to co-ordinate this all together in an orderly manner.
Any suggestions/assistance would be greatly appreciated.
Thanks
You should provide lat/lon with your addresses in your database, so do the geocoding of the addresses before.
You have a location manager (CLLocationManager) which takes care of your current position, and with each location (CLLocation) you can calculate the distance (distanceFormLocation:). Now you only need to sort your database with this and pick the first three items.
Hmm?
Ok... maybe forbidden by Apple, but assuming this is permitted. What would be the best way to get the current location (not difficult) and posting it to a web service (also not much of a challenge). The app is for an artist who wants people to see where he is at the moment. Personally, I wouldn't want people to know where I am 24/7 but that's performance art I guess. An exact location is not wanted but a town or area would be preferred. I could modify the string when it gets to the server and make it more vague by rounding the LOG and LAT.
The app the fans would use would retrieve his current location from the server and update the map view with a location.
I suppose one way would be for him to find out his coordinates and post that to a web page but I'd like it to update automatically.
A response with code is not necessary, just a general opinion on methodology/advisability would be appreciated
I would probably give him a webpage to go to that records his position every time he visits. It would be a private URL, and perhaps use some lightweight authentication. For versatility, I'd record the exact position in the database (in case he changes his mind on how it should work later on). However, you could use an external service or another purchased database with zips or city information with lat/lng data, so you could just provide users of the client app with his general vicinity rather than exact location.
The alternative would be to give him an ad hoc app that does the same thing, but putting together that location recording webpage would be a much simpler process. Could be handy for other things, too.
Here's a little writeup about getting location from mobile Safari, just as a reference: http://mobiforge.com/developing/story/location-iphone-web-apps
Why wouldn't you just use google latitude and read out his status?
I think this should really be done as a web page web-app. You can get coordinates from the device through mobile safari and you can skip the app approval process. You can also set it up so it runs fullscreen on his phone and he won't know the difference. You can also put a password on it.
There is a good chance it would not get approved as a regular app.
You can always meta refresh the page to keep it updating.
http://smithsrus.com/gps-geolocation-in-safari-on-iphone-os-3-0/
"Artist" must log in to his application (thus insuring that he want to share his coordinates with your webserver), then you use CLLocationManager to get his coordinates and make a reverse geocoding using Google Maps API to get country and city for given coordinates.
Can't see anything special about it :)
Basically I want to send gps coordinates (displayed on a map in the iPhone) from the iPhone to a webserver that store the values in a database. You should then be able to retrieve these coordinates and display them on a web page.
I am thinking of a set up like this:
I want the browser to request and receive the coordinates in real time (every 10 seconds or so) and I'm wondering if this is a good way to mirror the map in a browser or should I use a different approach? Finally, can you see any obvious flaw/flaws in this design (i.e. performance issues)?
your setup makes sense. The question is, what will you use to keep the map in the browser up to date? I would suggest you check out http://socket.io, I think it will do exactly what you need.
Cheers,
Johannes