Question

我需要找到从一个地方到另一个地方的估计开车时间。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。帮助谢谢。

Answer 1

是的，您可以获得时间和距离值以及驾驶，步行等模式中的许多方向细节。所有你从谷歌方向API服务

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;

如果上述内容不适用于您，请同时查看：

Calculate distance between two points in google maps V3

Answer 3

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

它将提供方向细节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 4

弃用说明以下所述解决方案基于Google的 Google地图服务Java客户端，由于可能会丢失not intended to be used in an Android App API密钥（由PK Gupta in the comments指出）。因此，我不再建议将其用于生产目的。

已经described by Praktik，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，并考虑路线和流量。但是，您不必使用Web API并构建自己的包装器，而是使用Google自身提供的Java implementation，可以通过Maven/gradle存储库获取。

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

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

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 - > gt; routes.length == 0），也不会处理多个route或leg 。原点和目的地也可以直接设置为LatLng个实例（请参阅DirectionsApiRequest#origin(LatLng)和DirectionsApiRequest#destination(LatLng)。

进一步阅读：android.jlelse.eu - Google Maps Directions API

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();

Android - 如何估算从一个地方到另一个地方的行车时间？

5 个答案: