Develop Reference

Android location incorrect

This is my case. when the mobile signal is too weak one or two bars. The phone will connect to wifi automatically. After that, when the app try to acquire location. The location is always incorrect. is that gps signal issue?

Rather than trying to use your GPS chip to find your device, Google’s servers “remember” the GPS locations of devices connecting through your router (presumably by associating your location to the router’s MAC address), and “assumes” that all devices connecting through that router are at the location which it remembered. The complete details can be found via below link.. http://redoubtsolutions.com/android-reports-wrong-location-when-connected-to-wifi/

get current location without internet - phonegap geolocation api for android

I am trying to get the user's current location using phonegap Geolocation api, which says "Common sources of location information include Global Positioning System (GPS) and location inferred from network signals such as IP address, RFID, WiFi and Bluetooth MAC addresses, and GSM/CDMA cell IDs". I am able to properly get the location when internet is ON (irrespective of the state of GPS).
Is there a way to get the location using triangulation when the internet is OFF or not accessible? (GPS might be ON or OFF)

A BIG "NO"! This is like cutting down hands and asking if I could clap now? GPS and NETWORK location providers are the only way to receive user device location.
For GPS location - you need GPS sensors to be ON.
And for NETWORK location you need to have internet connection ON, because in this case the location is calculated on the basis of Cell-Tower/Wifi-spot ID which is then sent to google servers (via internet) to fetch the location details of the respective Cell Tower or wifi spot. Google's location server have its own location approximation algorithms on the basis of which it tells your location.
So, there could be no way you could receive a location when both GPS and INTERNET are OFF.
Note: You can still get the last received location from any of these providers by using LocationManager's getLastKnownLocation() even when the providers are OFF. But this locations are usually outdated ones and are barely of any use.

{ enableHighAccuracy: true }
Enabling that option will allow the Android device to get the location even with the WIFI option disabled.

How can I manually send GPS data to Location Manager on my android phone(rooted)

My question is, How will actually LocationManager get data from GPS device on mobile?
Can I manually give LocationManager data which i intended to give??
For my testing I require such thing.
Or Can anyone provide me details how or through which File will GPS device provide data to LocationManager.
Or By what means will the Location API communicate with GPS device/ GPS driver.
I require some or the other information to provide direct GPS data to LocationManager inturn to the APPs using locationManager(Directly on mobile not by emulators).
Any help or suggestions are Appreciated.
Reagrds
Poorna Chander T

Here is a nice app for testing apps that require GPS:
http://forum.xda-developers.com/showthread.php?t=1577485
Also you have to select "Allow mock locations" in developer options on your phone.

Is every Android phone GPS Enabled or not?

I am developing a location based application but I am confused whether every Android phone has GPS enabled or not?
And if GPS is not available and if we use GPS settings API, then what is the result?
is any error or not..?
please help me..

Some android devices don't have a GPS.
For more informations on how to get the location of a user, you should read the Obtaining User Location section of the documentation : it contains quite of bit of notes and code samples.

Android GPS Provider

I'm developing an android application that involves the detection of the users' location.
What I would like to know is, how does this -> LocationManager.GPS_PROVIDER work?
Does it uses the GPS system in the phone or does it uses the mobile company's area network location?
Whenever I turn on the GPS system in my phone, the map would not load. It will only be able to detect & pinpoint the location when I deactivate it. I think the application is tapping into the GPRS or something.
Thanks.

LocationManager.GPS_PROVIDER uses GPS and LocationManager.NETWORK_PROVIDER uses mobile network. Map application works with both of them, it displays the most accurate data that is available from any of the providers.

In reality, GPS is accompanied with Wi-fi or 3G to location searching because the GPS providers is not always available.