Utility class for easy access to the device location on Android
- Include one of the JARs in your
libs
folder - or
- Copy the Java package to your project's source folder
- or
- Create a new library project from this repository and reference it in your project
- If you want to get the device's location with fine granularity (between 2m and 100m precision), GPS will be required. This consumes more battery but is most precise.
- If you want to get the device's location with coarse granularity only (precise to several hundred meters), the location will be retrieved from the network (Wi-Fi and cell towers). This saves battery but is less precise.
For fine location (GPS location), add the following permission in your AndroidManifest.xml
:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
For coarse location (network location), add the following permission in your AndroidManifest.xml
:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
public class MyActivity extends Activity {
private SimpleLocation location;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// ...
// construct a new instance of SimpleLocation
location = new SimpleLocation(this);
// if we can't access the location yet
if (!location.hasLocationEnabled()) {
// ask the user to enable location access
SimpleLocation.openSettings(this);
}
findViewById(R.id.someView).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final double latitude = location.getLatitude();
final double longitude = location.getLatitude();
// TODO
}
});
}
@Override
protected void onResume() {
super.onResume();
// make the device update its location
location.beginUpdates();
// ...
}
@Override
protected void onPause() {
// stop location updates (saves battery)
location.endUpdates();
// ...
super.onPause();
}
}
// alternative A
location.calculateDistance(startLatitude, startLongitude, endLatitude, endLongitude);
// alternative B
location.calculateDistance(startPoint, endPoint);
// reduce the precision to 10,000m for privacy reasons
location.setBlurRadius(10000);
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