Get the distance & duration between two locations in android?

We are getting distance & duration between two locations in Google map. We will find duration according to different Traveling Modes such as –

driving (default) indicates standard driving directions using the road network.
walking requests walking directions via pedestrian paths & sidewalks (where available).
bicycling requests bicycling directions via bicycle paths & preferred streets (where available).
transit requests directions via public transit routes (where available).

You’ll need to request the directions over HTTP. You can do this directly from Android, or via your own server.

Request the google map server with URL like-

String url = "https://maps.googleapis.com/maps/api/directions/" + output + "?" + parameters;

1	String url = "https://maps.googleapis.com/maps/api/directions/" + output + "?" + parameters;

with GET request method.

where “output” is a format of the response and parameter contains values.

// Origin of route
		String str_origin = "origin=" + origin.latitude + "," + origin.longitude;

		// Destination of route
		String str_dest = "destination=" + dest.latitude + "," + dest.longitude;


		// Sensor enabled
		String sensor = "sensor=false";
                // Travelling mode enable
                <strong>String mode = "mode = driving"</strong>

		// Building the parameters to the web service
		String parameters = str_origin + "&" + str_dest + "&" + sensor + "&"+ mode;

		// Output format
		String output = "json";

// Origin of route

String str_origin = "origin=" + origin.latitude + "," + origin.longitude;

// Destination of route

String str_dest = "destination=" + dest.latitude + "," + dest.longitude;

// Sensor enabled

String sensor = "sensor=false";

// Travelling mode enable

<strong>String mode = "mode = driving"</strong>

// Building the parameters to the web service

String parameters = str_origin + "&" + str_dest + "&" + sensor + "&"+ mode;

// Output format

String output = "json";

Connection to communicate Map Server with URL.

/** A method to download json data from url */
	private String downloadUrl(String strUrl) throws IOException {
		String data = "";
		InputStream iStream = null;
		HttpURLConnection urlConnection = null;
		try {
			URL url = new URL(strUrl);

			// Creating an http connection to communicate with url
			urlConnection = (HttpURLConnection) url.openConnection();

			// Connecting to url
			urlConnection.connect();

			// Reading data from url
			iStream = urlConnection.getInputStream();

			BufferedReader br = new BufferedReader(new InputStreamReader(iStream));

			StringBuffer sb = new StringBuffer();

			String line = "";
			while ((line = br.readLine()) != null) {
				sb.append(line);
			}

			data = sb.toString();

			br.close();

		} catch (Exception e) {
			Log.d("Exception while downloading url", e.toString());
		} finally {
			iStream.close();
			urlConnection.disconnect();
		}
		Log.d("Data =", "url"+data.toString());
		return data;
	}

/** A method to download json data from url */

private String downloadUrl(String strUrl) throws IOException {

String data = "";

InputStream iStream = null;

HttpURLConnection urlConnection = null;

try {

URL url = new URL(strUrl);

// Creating an http connection to communicate with url

urlConnection = (HttpURLConnection) url.openConnection();

// Connecting to url

urlConnection.connect();

// Reading data from url

iStream = urlConnection.getInputStream();

BufferedReader br = new BufferedReader(new InputStreamReader(iStream));

StringBuffer sb = new StringBuffer();

String line = "";

while ((line = br.readLine()) != null) {

sb.append(line);

}

data = sb.toString();

br.close();

} catch (Exception e) {

Log.d("Exception while downloading url", e.toString());

} finally {

iStream.close();

urlConnection.disconnect();

}

Log.d("Data =", "url"+data.toString());

return data;

}

Getting the response from the Google map server and parse response string to JSON format.

Getting distance & duration-

String response = downloadUrl(url);
String distance;
String duration;
distance = response.getJSONArray("routes").getJSONObject(routeIndex).getJSONArray("legs").getJSONObject(index).getJSONObject("distance").getString("text");
duration = response.getJSONArray("routes").getJSONObject(routeIndex).getJSONArray("legs").getJSONObject(index).getJSONObject("duration").getString("text");

String response = downloadUrl(url);

String distance;

String duration;

distance = response.getJSONArray("routes").getJSONObject(routeIndex).getJSONArray("legs").getJSONObject(index).getJSONObject("distance").getString("text");

duration = response.getJSONArray("routes").getJSONObject(routeIndex).getJSONArray("legs").getJSONObject(index).getJSONObject("duration").getString("text");

Sources: Google Maps Directions API

ashwini gupta 25 September 2021

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2 comments

kajal May 12, 2021 at 6:06 pm

hello sir can you provide full source code bcoz i m not getting where is response?
plz

anchit (Moderator) Sep 25, 2021 at 7:27 pm
We cannot share the code but what i can deduce from this article is that there is one line missing.

String response = downloadUrl (url);

I am adding this in the article as well.

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Get the distance & duration between two locations in android?

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