Android Locations

Android Locations

IntermediatePoints.java

private static final int MIN_STEP_DISTANCE = 10; // meter

public List<LatLng> createIntermediatePoints(@NotNull LatLng start, @NotNull LatLng end) {
	List<LatLng> pointList = new ArrayList<LatLng>();
	double startLat = start.latitude;
	double startLon = start.longitude;
	double endLat = end.latitude;
	double endLon = end.longitude;

	float distance = LocationUtils.distance(start, end);
	int totalSegments = (int) (distance / MIN_STEP_DISTANCE);

	for (int segment = 1; segment <= totalSegments; segment++) {
		double lat = (startLat + ((endLat - startLat) / (double) totalSegments) * segment);
		double lon = (startLon + ((endLon - startLon) / (double) totalSegments) * segment);
		pointList.add(new LatLng(lat, lon));
	}

	return pointList;
}

LocationUtils.java

public class LocationUtils {
	
	public static float distance(@NotNull Location from, @NotNull Location to) {
		return distance(from.getLatitude(), from.getLongitude(), to.getLatitude(), to.getLongitude());
	}

	public static float distance(@NotNull LatLng from, @NotNull LatLng to) {
		return distance(from.latitude, from.longitude, to.latitude, to.longitude);
	}

	public static float distance(double fromLat, double fromLon, double toLat, double toLom) {
		float distance = 0;
		float[] result = new float[3];
		Location.distanceBetween(fromLat, fromLon, toLat, toLom, result);
		if (result.length > 1) {
			distance = result[0];
		}

		return distance;
	}
	
}