Tracking realtime shipper

2026-09-22 20:00:50 +00:00 · 2023-04-08 15:22:42 +07:00
parent 93a0b970d9
commit 933174a8c1
21 changed files with 564 additions and 25 deletions
@@ -0,0 +1,100 @@
+package com.capstone.foodify;
+
+import com.google.android.gms.maps.model.LatLng;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class DirectionJSONParser {
+
+    /**
+     * Receives a JSONObject and returns a list of lists containing latitude and longitude
+     */
+    public List<List<HashMap<String, String>>> parse(JSONObject jObject) {
+
+        List<List<HashMap<String, String>>> routes = new ArrayList<List<HashMap<String, String>>>();
+        JSONArray jRoutes = null;
+        JSONArray jLegs = null;
+        JSONArray jSteps = null;
+
+        try {
+
+            jRoutes = jObject.getJSONArray("routes");
+
+            /** Traversing all routes */
+            for (int i = 0; i < jRoutes.length(); i++) {
+                jLegs = ((JSONObject) jRoutes.get(i)).getJSONArray("legs");
+                List path = new ArrayList<HashMap<String, String>>();
+
+                /** Traversing all legs */
+                for (int j = 0; j < jLegs.length(); j++) {
+                    jSteps = ((JSONObject) jLegs.get(j)).getJSONArray("steps");
+
+                    /** Traversing all steps */
+                    for (int k = 0; k < jSteps.length(); k++) {
+                        String polyline = "";
+                        polyline = (String) ((JSONObject) ((JSONObject) jSteps.get(k)).get("polyline")).get("points");
+                        List list = decodePoly(polyline);
+
+                        /** Traversing all points */
+                        for (int l = 0; l < list.size(); l++) {
+                            HashMap<String, String> hm = new HashMap<String, String>();
+                            hm.put("lat", Double.toString(((LatLng) list.get(l)).latitude));
+                            hm.put("lng", Double.toString(((LatLng) list.get(l)).longitude));
+                            path.add(hm);
+                        }
+                    }
+                    routes.add(path);
+                }
+            }
+
+        } catch (JSONException e) {
+            e.printStackTrace();
+        } catch (Exception e) {
+        }
+
+        return routes;
+    }
+
+    /**
+     * Method to decode polyline points
+     * Courtesy : http://jeffreysambells.com/2010/05/27/decoding-polylines-from-google-maps-direction-api-with-java
+     */
+    private List decodePoly(String encoded) {
+        List poly = new ArrayList();
+        int index = 0, len = encoded.length();
+        int lat = 0, lng = 0;
+
+        while (index < len) {
+            int b, shift = 0, result = 0;
+            do {
+                b = encoded.charAt(index++) - 63;
+                result |= (b & 0x1f) << shift;
+                shift += 5;
+            } while (b >= 0x20);
+            int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+            lat += dlat;
+
+            shift = 0;
+            result = 0;
+            do {
+                b = encoded.charAt(index++) - 63;
+                result |= (b & 0x1f) << shift;
+                shift += 5;
+            } while (b >= 0x20);
+            int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+            lng += dlng;
+
+            LatLng p = new LatLng((((double) lat / 1E5)),
+                    (((double) lng / 1E5)));
+            poly.add(p);
+        }
+
+        return poly;
+    }
+}