创建行程谷歌地图安卓
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【中文标题】创建行程谷歌地图安卓【英文标题】：create itinary google maps android 【发布时间】：2016-12-19 12:25:59 【问题描述】：使用 gps 进行地理定位后，我想创建一条线来显示两点之间的行程。我知道我需要使用折线，但是在 JSON 解析之后，我不知道如何使用折线选项，也不知道如何使用 Json 中名为“steps”的部分。对于 Http 连接，我使用 Volley 库。这是我的代码：
public void geoLocate(View view)
String start = start_address.getText().toString();
String destination = destination_address.getText().toString();
Geocoder gc = new Geocoder(getActivity());
try
List<android.location.Address> list = gc.getFromLocationName(start,1);
final Address adress1 = list.get(0);
String start_adress = adress1.getLocality();
double lat_start = adress1.getLatitude();
double lng_start = adress1.getLongitude();
list = gc.getFromLocationName(destination,1);
Address adress2 = list.get(0);
String destination_adress = adress2.getLocality();
double lat_destination = adress2.getLatitude();
double lng_destination = adress2.getLongitude();
if (start_marker != null || destination_marker != null)
start_marker.remove();
destination_marker.remove();
options_start = new MarkerOptions()
.title(start_adress)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN))
.position(new LatLng(lat_start, lng_start));
start_marker = mGoogleMap.addMarker(options_start);
options_destination = new MarkerOptions()
.title(destination_adress)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE))
.position(new LatLng(lat_destination, lng_destination));
destination_marker = mGoogleMap.addMarker(options_destination);
reservation.setClickable(true);
reservation.setEnabled(true);
reservation.setTextColor(getResources().getColor(R.color.white));
reservation.setBackgroundColor(getResources().getColor(R.color.colorPrimary));
if(reservation.isClickable())
reservation.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
);
LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(start_marker.getPosition());
builder.include(destination_marker.getPosition());
LatLngBounds bounds = builder.build();
final StringBuilder url = new StringBuilder("http://maps.googleapis.com/maps/api/directions/json?sensor=false&language=fr");
url.append("&origin=");
url.append(start.replace(" ", "+"));
url.append("&destination=");
url.append(destination.replace(" ", "+"));
final Response.Listener<String> responseListener = new Response.Listener<String>()
@Override
public void onResponse(final String response)
try
JSONObject jsonResponse = new JSONObject(response);
String status = jsonResponse.getString("status");
if (status.equals("OK"))
JSONArray parentArray = jsonResponse.getJSONArray("routes");
JSONObject routes = parentArray.getJSONObject(0);
if(routes != null)
JSONArray legsArray = routes.getJSONArray("legs");
JSONObject legsObject = legsArray.getJSONObject(0);
if (legsObject != null)
JSONObject distance = legsObject.getJSONObject("distance");
if (distance != null)
String distanceText = distance.getString("text");
distance_matrix.append(" "+distanceText);
JSONArray stepsArray = legsObject.getJSONArray("steps");
JSONObject stepsObject = stepsArray.getJSONObject(0);
if (stepsObject != null)
catch (JSONException e)
e.printStackTrace();
;
ItineraireRequest itineraireRequest = new ItineraireRequest(url.toString(), responseListener);
RequestQueue queue = Volley.newRequestQueue(getActivity());
queue.add(itineraireRequest);
int padding = 125; // offset from edges of the map in pixels
CameraUpdate cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
mGoogleMap.animateCamera(cu);
catch (IOException e)
e.printStackTrace();
请您提供一个适合我的代码的解决方案吗？
【问题讨论】：
This 应该会有所帮助 HttpClient 已弃用 【参考方案1】：我认为这会有所帮助，“getDocument()”可以完成所有工作
@Override
public void onMapReady(GoogleMap googleMap)
GMapV2Direction md = new GMapV2Direction();
Document doc = md.getDocument(formatAddress(ORIGIN_TEXT, formatAddress(DESTINATION_TEXT, MODE, getApplicationContext());
if (doc != null)
int duration = md.getDurationValue(doc);
if (duration > 0)
try
ArrayList<LatLng> directionPoint = md.getDirection(doc);
PolylineOptions rectLine = new PolylineOptions().width(9).color(R.color.splash_blue).geodesic(true);
for (int i = 0; i < directionPoint.size(); i++)
rectLine.add(directionPoint.get(i));
AccessLocationActivity.this.mMap.addPolyline(rectLine);
catch (Exception e)
e.printStackTrace();
更新
试试这个
public void geoLocate(View view)
String start = start_address.getText().toString();
String destination = destination_address.getText().toString();
Geocoder gc = new Geocoder(getActivity());
try
List<android.location.Address> list = gc.getFromLocationName(start,1);
final Address adress1 = list.get(0);
String start_adress = adress1.getLocality();
double lat_start = adress1.getLatitude();
double lng_start = adress1.getLongitude();
list = gc.getFromLocationName(destination,1);
Address adress2 = list.get(0);
String destination_adress = adress2.getLocality();
double lat_destination = adress2.getLatitude();
double lng_destination = adress2.getLongitude();
if (start_marker != null || destination_marker != null)
start_marker.remove();
destination_marker.remove();
options_start = new MarkerOptions()
.title(start_adress)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN))
.position(new LatLng(lat_start, lng_start));
start_marker = mGoogleMap.addMarker(options_start);
options_destination = new MarkerOptions()
.title(destination_adress)
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE))
.position(new LatLng(lat_destination, lng_destination));
destination_marker = mGoogleMap.addMarker(options_destination);
reservation.setClickable(true);
reservation.setEnabled(true);
reservation.setTextColor(getResources().getColor(R.color.white));
reservation.setBackgroundColor(getResources().getColor(R.color.colorPrimary));
if(reservation.isClickable())
reservation.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
);
LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(start_marker.getPosition());
builder.include(destination_marker.getPosition());
LatLngBounds bounds = builder.build();
final StringBuilder url = new StringBuilder("http://maps.googleapis.com/maps/api/directions/json?sensor=false&language=fr");
url.append("&origin=");
url.append(start.replace(" ", "+"));
url.append("&destination=");
url.append(destination.replace(" ", "+"));
GMapV2Direction md = new GMapV2Direction();
Document doc = md.getDocument(formatAddress(start), formatAddress(destination), GMapV2Direction.MODE_DRIVING, getApplicationContext());
if (doc != null)
int duration = md.getDurationValue(doc);
if (duration > 0)
try
ArrayList<LatLng> directionPoint = md.getDirection(doc);
PolylineOptions rectLine = new PolylineOptions().width(9).color(R.color.colorPrimary).geodesic(true);
for (int i = 0; i < directionPoint.size(); i++)
rectLine.add(directionPoint.get(i));
mGoogleMap.addPolyline(rectLine);
catch (Exception e)
e.printStackTrace();
catch (IOException e)
e.printStackTrace();
【讨论】：
你可以给我这个，但请用我的脚本吗？ 其实什么是GMapV2Direction.class？我没有任何名为 GMapV2Direction 的类 抱歉我迟到了你可以在这里导入该类github.com/KAPLANDROID/…【参考方案2】：This 是 Google DirectionsAPI 之上的一个很好的包装器，如果您愿意试一试的话。
更详细的解释here。
【讨论】：
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