i have working code for an app that receives latitude and longitude --- im working towards a goal that based on this longitude and latitude i set it will turn off the ringer --- its sounds pretty straight forward it just seems like i have programmers block and cant seem to move past this point----so my question is ---in what ways could i utilize the location services in android using eclipse to set a certain longitude and latitude coordinates to a place where when i enter that specific place it turns off the ringer for me or any variation of the ringer on/off/vibrate/silent
This is not really a programming question. You stand a chance of getting voted down because of that.... But, to start you should read up on Location Services and Location Manager. the concept is that you start by getting your "Last Known Location" from location service and begin to dial in your precise location using Network_Service and GPS_Service. From scratch it could take a minute or so to actually get a GPS location and it consumes battery so you have to start and stop "Locating" judiciously to maintain a good location and preserve battery. As for turning the ringer off?? You should also tag this as Android and put some code together or at least an idea and repost.
Make sense? start reading here Android Location
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after researching the Android Location FusedLocationProviderClient I am very confused about what you should and should not do!
The use case is: The App holds different locations with latitude and longitude. While the user is walking around the app (with the phone in the pocket, screen off) needs to track if he is close to one of the locations and plays a short beep when closer than a defined range.
Would the Geofence option the best solution? These locations will also change during runtime and periodically - they might also be more than 100. Any suggestion?
I am also thinking about a background service to handle all this when the device moves. This would be more flexible and allows for the reload of the locations as well. Any thoughts?
Thanks!!
You don't actually need to build a background service to monitor if a user is close to a location. There is already a geofence provided by Google. It uses fusedlocation provider internally.
Please refer this
You can combine this with a FusedLocationProviderClient and subscribe to location updates. This way you'll get location updates as well.
I've ran into a little problem and I don't feel like I'm informed enough to overcome the hurdle.
In essence, I'd like to figure out whether someone is moving over a threshold of say, 40 kmh (~25mph). I get GPS coordinates at designated intervals and compare the distances, which all works fine.
My question is, which method of getting GPS coordinates would work best for this application? Using the Network, using GPS, or both (like, check if the network is connected, else use GPS)?
The summary is, which is the most accurate method?
I'd use the fused location api in this case. In addition, if you want to know if someone is moving you could use the activity recognition of google play services, it requires much less effort and you can even filter by activity: only with car for example (if you want to track over the 40km/h it's unlikely someone is moving on feet).
Would it be possible to make an Android application that works based on location, for example when you get to work the app might turn off WiFi or Bluetooth or change any other system settings in order to save battery or something?
The app would require the user to enter in locations where they want the app to begin working, like their address, and when the phone sees that they have arrived at this location it will start working. I want to do this but I don't know where to start.
I already have some android app development experience.
Yes absolutely this is possible. I have worked on approx three application with same concept.
You need to create a center point and define a radius for the same.
Then you need to calculate the distance of you current location with that particular center point and if your distance is less than or equal to radius, trigger to switch on the services you want.
In android you can use
LocationManager class
For collecting the data. If you want some more help I can provide the same too.
I've played around with a concept like this on the Windows Phone for a while, and I think this would work for Android too.
Basically, you'd use the GPS of the device to detect your location, and then compare this to the locations saved by the user. If the location comes within range of a saved setting, perform an action.
GPS usage however drains battery, so you'd have to experiment a bit with making this an efficient method.
Have you tried GeoFencing, its really cool. It lets you define a center point, and a radius. Once the user enters this radius you get callback or a pendingIntent. You can do what you want in your callback.
You can get addresses of your customers and build geofence around their locations.
Edit :
If you choose to not use GeoFenceing (for what ever reason), note that LocationManager is highly buggy and unstable on most mobile phones (Samsung).
Instead use LocationClient, which takes care of all the crap LocationManager leaves with us to deal with and provides location faster, lesser battery and customized accuracy.
Edit :
If anyone tries to convince you otherwise, check this out. A video from google developers and their talk about why LocationManager sucks, and why they knew and helped us figure out the value Sensors add to the entire solution.
Edit : Design of your solution
You need 2 geofences
1) Outer, you can hard code this to a imaginary 500 m from office. From then on you can start looking for wifizones
2) Once a wifizone is found, save the gps and the distance from his address point. That is your inner radius.
1 Geofence is defined by your install, 2nd geofence is defined by your runtime.
2nd Geofence and be used henceforth to disable GPS (only incase you decide to use LocationManager). If not you wont need this, LocationClient will do what it does best.
After few hours of testing outside of house, when i came back to my house i found that GPS is enabled but was not getting location fixes inside the building.Hence its onLocationChanged method couldn't get called.
Problem: How to know that GPS is not getting any location fixes as device continue to sense your location in "trying mode".By trying mode i mean the situation where it is not coming to any result even after 20 to 30 minutes still it declared it self as enabled (blinking in status bar).
How one could know that the GPS doesn't get location so switch to another provider like Network_Provider.
In short i want to get my device to conclude something that GPS can find location fix for sure or you have to take location by another means.
I hope at least someone can give me idea about how to deal with that.
The link below has an awesome tutorial, of how to get the location from GPS and/or Network.
It uses a timer task, which analyzes if there is a GPS location in a specific period of time, assume 20 seconds. If not, it will return the location from Network as the current location. If there is a location from GPS, then it will compare which update is new (latest), and return that.
What is the simplest and most robust way to get the user's current location on Android?
Right now, I only know of one method to do this:
- Get last known location
- Have the location manager request location updates
However, I really only need to get the CURRENT coordinates ONCE right when the application is called, but it's not doing what I want.
What's the simplest way to get the current coordinates? Is there something I could call or some code I could use just to get the location RIGHT NOW ?
thanks in advance! I'm still a little new with android development.
What's the simplest way to get the current coordinates?
There is no way to get the current coordinates on demand.
Is there something I could call or some code I could use just to get the location RIGHT NOW ?
No, for three related reasons:
Not all location technologies are low power. GPS, for example, is a serious battery hog. Hence, GPS is not powered on unless something is actively seeking a GPS fix.
Not all location technologies are instantaneous. GPS, for example, takes some number of seconds to get a fix after being powered on.
No location technology is universally available. GPS, for example, may be unavailable because you are in a large building.