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如何在带有折线的谷歌地图中启用行车路线。任何一个有助于绘制两点之间的道路地图。谷歌地图中两点之间的多段线不在道路上(行车路线)
目前在地图中的两点之间绘制了一条简单线条。我无法改变它。下面
String stringUrl = "http://maps.googleapis.com/maps/api/directions/json?origin=" + fromPosition+ "&destination=" + toPosition+ "&sensor=false";
StringBuilder response = new StringBuilder();
try {
URL url = new URL(stringUrl);
HttpURLConnection httpconn = (HttpURLConnection) url
.openConnection();
if (httpconn.getResponseCode() == HttpURLConnection.HTTP_OK) {
BufferedReader input = new BufferedReader(
new InputStreamReader(httpconn.getInputStream()),
8192);
String strLine = null;
while ((strLine = input.readLine()) != null) {
response.append(strLine);
}
input.close();
}
String jsonOutput = response.toString();
JSONObject jsonObject = new JSONObject(jsonOutput);
// routesArray contains ALL routes
JSONArray routesArray = jsonObject.getJSONArray("routes");
// Grab the first route
JSONObject route = routesArray.getJSONObject(0);
JSONArray legs = route.getJSONArray("legs");
JSONObject firtsLegs = legs.getJSONObject(0);
JSONObject distance = firtsLegs.getJSONObject("distance");
System.out.println("Response test was : " + distance.getString("text"));
String walkDistance = distance.getString("text");
JSONObject poly = route.getJSONObject("overview_polyline");
String polyline = poly.getString("points");
decodePoly(polyline);
} catch (Exception e) {
}
添加第三方库在这方面不安全。所以我试图在android地图的本地功能中做到这一点。感谢您的意见。 –