Can GPS work with offline maps on Android 4.0 with data connection switched off, or does GPS require data connection even with offline maps?
the map should load (if you've downloaded and saved an area for offline use) and the GPS should show your current location. Now depending situation GPS can work better with network data.
In a city, these signals may suffer multipath propagation where signals bounce off buildings, or are weakened by passing through atmospheric conditions, walls, or tree cover. When first turned on in these conditions, some standalone GPS navigation devices may not be able to fix a position due to the fragmentary signal. An assisted GPS system can address these problems by using data available from a network. A typical A-GPS-enabled receiver will use a data connection (Internet or other). Some A-GPS devices do not have the option of falling back to standalone or autonomous GPS.
Thanks. Please can you tell free offline maps for Android 4.0?
The Top 3 Free Offline GPS Apps For Android
MapFactor: GPS Navigation
GPS location does not require any data to get a lock on the location of the device, nor does it need data connection to maintain location capabilities with offline maps. aGPS (assisted GPS) uses data connections to gain a location lock faster, but isn't necessary for use in offline map navigation.
As long as the maps are pre-downloaded as well as waypoints and other data are downloaded, data connections are not needed and a GPS enabled device can be used as a GPS navigation system.