public ArrayList<LatLng> getDirection(Document doc) {
NodeList nl1, nl2, nl3;
ArrayList<LatLng> listGeopoints = new ArrayList<LatLng>();
nl1 = doc.getElementsByTagName("step");
if (nl1.getLength() > 0) {
for (int i = 0; i < nl1.getLength(); i++) {
Node node1 = nl1.item(i);
nl2 = node1.getChildNodes();
Node locationNode = nl2.item(getNodeIndex(nl2, "start_location"));
nl3 = locationNode.getChildNodes();
Node latNode = nl3.item(getNodeIndex(nl3, "lat"));
double lat = Double.parseDouble(latNode.getTextContent());
Node lngNode = nl3.item(getNodeIndex(nl3, "lng"));
double lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
locationNode = nl2.item(getNodeIndex(nl2, "polyline"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "points"));
// ArrayList<LatLng> arr = decodePoly(latNode.getTextContent());
List<LatLng> arr = PolyUtil.decode(latNode.getTextContent());
for (int j = 0; j < arr.size(); j++) {
listGeopoints.add(new LatLng(arr.get(j).latitude, arr.get(j).longitude));
}
locationNode = nl2.item(getNodeIndex(nl2, "end_location"));
nl3 = locationNode.getChildNodes();
latNode = nl3.item(getNodeIndex(nl3, "lat"));
lat = Double.parseDouble(latNode.getTextContent());
lngNode = nl3.item(getNodeIndex(nl3, "lng"));
lng = Double.parseDouble(lngNode.getTextContent());
listGeopoints.add(new LatLng(lat, lng));
}
}
return listGeopoints;
}
public List<LatLng> getDirections(String pidStart, String pidEnd, String mode) {
// public Document getDirections(LatLng start, LatLng end, String mode) {
String strUrl =
"https://maps.googleapis.com/maps/api/directions/json?"
+ "origin=place_id:"
+ pidStart // + start.latitude + "," + start.longitude
+ "&destination=place_id:"
+ pidEnd // end.latitude + "," + end.longitude
+ "&mode=DRIVING&key="
+ API_KEY;
Log.d("url", strUrl);
/*try {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(url);
HttpResponse response = httpClient.execute(httpPost, localContext);
InputStream in = response.getEntity().getContent();
DocumentBuilder builder;
builder = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
Document doc = builder.parse(in);
return doc;
} catch (Exception e) {
e.printStackTrace();
}*/
ArrayList<LatLng> latLngs = new ArrayList<LatLng>();
HttpURLConnection conn = null;
StringBuilder jsonResults = new StringBuilder();
try {
URL url = new URL(strUrl);
conn = (HttpURLConnection) url.openConnection();
InputStreamReader in = new InputStreamReader(conn.getInputStream());
int read;
char[] buff = new char[1024];
while ((read = in.read(buff)) != -1) {
jsonResults.append(buff, 0, read);
}
/* DocumentBuilder builder;
builder = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
Document doc = builder.parse(conn.getInputStream());
return doc;*/
} catch (MalformedURLException e) {
Log.e(TAG, "Error processing Places API URL", e);
return null;
} catch (IOException e) {
Log.e(TAG, "Error connecting to Places API", e);
return null;
} /*catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}*/ finally {
if (conn != null) {
conn.disconnect();
}
}
try {
JSONObject jsonObj = new JSONObject(jsonResults.toString());
String jsonSteps =
jsonObj
.getJSONArray("routes")
.getJSONObject(0)
.getJSONObject("overview_polyline")
.getString("points");
/* .getJSONArray("legs")
.getJSONObject(0)
.getJSONArray("steps");*/
/* float lat, lng;
for(int i = 0; i < jsonSteps.length(); i++){
lat = Float.parseFloat(jsonSteps.getJSONObject(i).getJSONObject("start_location").getString("lat"));
lng = Float.parseFloat(jsonSteps.getJSONObject(i).getJSONObject("start_location").getString("lng"));
latLngs.add(new LatLng(lat,lng));
lat = Float.parseFloat(jsonSteps.getJSONObject(i).getJSONObject("end_location").getString("lat"));
lng = Float.parseFloat(jsonSteps.getJSONObject(i).getJSONObject("end_location").getString("lng"));
latLngs.add(new LatLng(lat,lng));
}
return latLngs;*/
Log.d("tons", jsonSteps);
return PolyUtil.decode(jsonSteps); // decodePolyline(jsonSteps);
} catch (JSONException e) {
Log.e(TAG, "Cannot process JSON results", e);
}
return null;
}