GPSInfo is a small iOS app that displays information from the device’s GPS.
It displays:
- Latitude and longitude (with horizontal accuracy)
- Altitude (with vertical accuracy)
- Estimated speed, in m/s and km/h
- Closest (large) city
It does not require an Internet connectivity so it may be used in Airplane mode, as long as the GPS is able to calibrate itself. This may require launching the app and waiting for it to find the current location before enabling Airplane mode.
The code is contained in a single Swift file, and does not use a nib or storyboard file to create the interface.
In order to build, the project requires a cities.plist be present. This
property list contains a list of cities with their associated latitude and
longitude. It may be generated by running the Python script update_cities.py.
Once that is done, opening GPSInfo.xcodeproj should allow GPSInfo to be
built.