Android : Where To Save GPS Latitude - Longitude Points?
Aug 30, 2010
On onLocationChanged event I want to save my GPS route (Latitude , Longitude). Later I want to load this data and draw the route. Who is the best way to do this, by using some array type (and save or load by using database) or XML files or something else.
When I send latitude/longitude points to the Emulator (using DDMS with GPX file or using "geo fix" from command line) the locations received by Apps on the Emulator are slightly off. So like I send a latitude of 41.74 and onLocationChanged recevies a Location, and I to toString() on it and get a longitude of : 41.74016776666667 Tested with my own app and then with Google Maps on the Emulator to double check. So its not an app issue.
I am writing a application that needs to draw a "route" comprised of lots of GPS points (long+lat). The points are close together and don't follow roads, simply drawing a line between each point is ideal.
The current implementation I have is very slow as I am looping over all the GPS coordinates and creating a new Point and overlayitem in an itemized overlay. This takes around 20 seconds for it to load all of these points and draw them to the mapview. Is there a way in which I can construct a series of lines or point from the GPS coordinates and draw them onto the mapview?
I am making a weather widget now , and there is a problem that how can I get some city name after getting latitude and longitude from google map. because I think we can't get weather data if can not get city name .
I'm trying to retrieve Latitude/Longitude informations of an image, but I always get 0.0 for lat/lon. But I know the image has this information inside, because I tried it with exiftools. When I use exiftools I can see the lat/lon values.
My Source: startActivity:
This should work, because I get the filename, or is this a total wrong approach?
I made a simple Android application which gives the latitude and longitude of the place where I am via GPS and I want to send the coordinates to a Webpage and represent them on google maps. Which is the simpliest possibility to send the data to the server?
I have the problem like this. Basically i want to find my present location's latitude and longitude .It is showing in emulator which is default one which points to Sanjose,usa.But it is not finding my current location(i am in Hyderabad,India).When i try to run the same application in My HTC magic (Android os 1.5) it is showing NULL.It is Not finding my present location. hat i have to do.is there need of Network provider like Mobile network(Vodafone,airtel etc) I am sending my code,Please check it and send me the working code if any body have,Please i need it urgently. Please Help me regarding this.
i have a problem.I want to find latitude and longitude of my current location in android application.Its not on location changed.I just need when i am stable with my phone after running it on emulator i always find "no location found".Why this is so?
I am having problem in getting the latitude and longitude on my phone.. So i create an application that only display the "Toast" once i request it to. using the LocationManager.NETWORK_PROVIDER, instead of gps. And I try it on my G1.. I found out that if the G1 is connected to my WiFi, i can get the coordinate of my position, without any problem.. once i turn off the WiFi of the phone. The onLocationChanged() is not triggered anymore, instead, onStatusChanged() is triggered.. And I get TEMPORARILY_UNAVAILABLE error.. So what i want to ask is :Is internet connection required to retrieve the coordinate ONLY?
I am new to android development and i have started working on an android application to perform following tasks.This application is to monitor the sales team of a company. write a service to run in background and get the current latitude and longitude of android device after getting a specific SMS from any number and then upload the latitude and longitude to a PHP web server without any notification to the user. Your thoughts or any code will be a great help for me as this is my first project of this kind..
I have an application where I try to get address of a location based on the latitude,longitude coordinates.When I try to print all the address of particular coordinates , I am getting only single address. IS there any way to get the list of all addresses for the coordinates supplied . My code snippet is as below: Where locationLatitude,locationLongitude are of type String which are converted to doubles. Code...
I don't know if I'm wierd, but I haven't found any topic about the subject. The thing is, I have data with lat and lng stored in my SQLite database, and I want to get the nearest locations to the parameters I put in (ex. my current location - lat, lng).I know that this is possible in MySql, and I've done quite some research that SQLite needs a custom external function for the Haversine formula (calculating distance on a sphere), but I haven't found nothing yet, that is written in Java and is functioning.Also, if I want to add custom functions, I need the org.sqlite .jar (for org.sqlite.Function) and that adds unnecessary size to the app.The other side of this is - i need the Order by function from sql, because displaying the distance alone isn't that much of a problem - I already did it in my custom SimpleCursorAdapter, but I can't sort the data, because i don't have the distance column in my DB. That would mean updating the DB everytime the location changes and that's a waste of battery and performance. So if someone has any idea on sorting the cursor with a column that's not in the database, I'd be grateful too!I know there are tons of Android apps out there that use this function, but can someone please explain the magic.