Android Accessing GPS Ken Nguyen Clayton State University 2012

Settings/ Manifest Add uses permission to allow access to device component and services Emulator:  mock location data by Window  Show View  Other  Android  Emulator Control – In Emulator Control panel enter the GPS coordinates under Location Controls and press Send Ex: (both satellite and cell towels) –

Creating a Location Aware Activity public class MainActivityGPS extends Activity implements LocationListener{ private LocationManager mgr; private TextView output; private String public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main_activity_gps); mgr = (LocationManager) getSystemService(LOCATION_SERVICE); output = (TextView) findViewById(R.id.output); log("Location providers:"); dumpProviders(); //helper method to display the data

The following methods must be implemented for LocationListener Criteria c = new Criteria(); best = mgr.getBestProvider(c, true); //helper method to display the data log("\nBest provider is:" + best); log("\nLocation (starting with last known):"); if(best != null){ Location loc = mgr.getLastKnownLocation(best); log(loc.toString()); }

private void dumpProviders() { List providers = mgr.getAllProviders(); for(int i = 0 ; i < providers.size(); i++){ log(providers.get(i).toString()); } private void log(String string) { output.append(string); } //required public void onLocationChanged(Location location) { log("\n" + location.toString()); } //required public void onStatusChanged(String provider, int status, Bundle extras) { log("\n" + lprovider.toString()); }

Suggested apps Build an app to log the GPS coordinates of the device The app must have – Start/stop/pause – Export / coordinates – Map coordinates – Clear/reset