Android - 如何获得从一个地方到另一个地方的估计驾驶时间？

Question

我需要找出从一个地方到另一个地方的估计行驶时间。我有两个地方的纬度和经度，但我不知道该怎么做。是否有任何API。 帮忙谢谢。

Answer 1

是的，您可以在驾驶、步行等模式下获得时间和距离值以及许多类似的方向详细信息。您从 google direction api 服务中获得的一切

查看我们的链接

http://code.google.com/apis/maps/documentation/directions/

Answer 2

    Location location1 = new Location("");
    location1.setLatitude(lat);
    location1.setLongitude(long);

    Location location2 = new Location("");
    location2.setLatitude(lat);
    location2.setLongitude(long);

    float distanceInMeters = location1.distanceTo(location2);

编辑：

    //For example spead is 10 meters per minute.
    int speedIs10MetersPerMinute = 10;
    float estimatedDriveTimeInMinutes = distanceInMeters / speedIs10MetersPerMinute;

如果上述方法不适合您，请同时查看：

Calculate distance between two points in google maps V3

Answer 3

弃用说明以下描述的解决方案基于 Google 的 Google Maps Services 的 Java 客户端，它是 not intended to be used in an Android App，因为可能会丢失 API 密钥（如上所述由PK Gupta in the comments）。因此，我不再推荐将其用于生产目的。

---

与described by Praktik 一样，您可以使用 Google 的路线 API 来估算从一个地方到另一个地方所需的时间，同时考虑路线和交通情况。但是您不必使用 Web API 并构建自己的包装器，而是使用 Google 自己提供的 Java implementation，它可以通过 Maven/gradle 存储库获得。

1. Add the google-maps-services to your app's build.gradle:

   dependencies {
       compile 'com.google.maps:google-maps-services:0.2.5'
   }
   

2. 执行请求并提取持续时间：

   // - Put your api key (https://developers.google.com/maps/documentation/directions/get-api-key) here:
   private static final String API_KEY = "AZ.."
   
   /**
   Use Google's directions api to calculate the estimated time needed to
   drive from origin to destination by car.
   
   @param origin The address/coordinates of the origin (see {@link DirectionsApiRequest#origin(String)} for more information on how to format the input)
   @param destination The address/coordinates of the destination (see {@link DirectionsApiRequest#destination(String)} for more information on how to format the input)
   
   @return The estimated time needed to travel human-friendly formatted
   */
   public String getDurationForRoute(String origin, String destination)
       // - We need a context to access the API 
       GeoApiContext geoApiContext = new GeoApiContext.Builder()
           .apiKey(apiKey)
           .build();
   
       // - Perform the actual request
       DirectionsResult directionsResult = DirectionsApi.newRequest(geoApiContext)
               .mode(TravelMode.DRIVING)
               .origin(origin)
               .destination(destination)
               .await();
   
       // - Parse the result
       DirectionsRoute route = directionsResult.routes[0];
       DirectionsLeg leg = route.legs[0];
       Duration duration = leg.duration;
       return duration.humanReadable;
   }
   

为简单起见，此代码不处理异常、错误情况（例如，找不到路由 -> routes.length == 0），也不会处理多个route 或leg。起点和终点也可以直接设置为LatLng 实例（参见DirectionsApiRequest#origin(LatLng) 和DirectionsApiRequest#destination(LatLng)。

延伸阅读：android.jlelse.eu - Google Maps Directions API

Answer 4

你也可以使用 http://maps.google.com/maps?saddr={start_address}&daddr={destination_address}

它将提供方向详细信息以及两个位置之间的距离和时间

http://maps.google.com/maps?saddr=79.7189,72.3414&daddr=66.45,74.6333&ie=UTF8&0&om=0&output=kml

Answer 5

   Calculate Distance:-
    float distance;
            Location locationA=new Location("A");
            locationA.setLatitude(lat);
            locationA.setLongitude(lng);

            Location locationB = new Location("B");
            locationB.setLatitude(lat);
            locationB.setLongitude(lng);

            distance = locationA.distanceTo(locationB)/1000;

            LatLng From = new LatLng(lat,lng);
            LatLng To = new LatLng(lat,lng);

            Calculate Time:-
            int speedIs1KmMinute = 100;
            float estimatedDriveTimeInMinutes = distance / speedIs1KmMinute;
               Toast.makeText(this,String.valueOf(distance+
"Km"),Toast.LENGTH_SHORT).show();
            Toast.makeText(this,String.valueOf(estimatedDriveTimeInMinutes+" Time"),Toast.LENGTH_SHORT).show();