blocks|key|1263342|text|http://developer.android.com/reference/android/location/Location.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1263343|查看distanceTo或distanceBetween。您可以根据纬度和经度创建Location对象：|1263344|Location+location+=+new+Location("");
location.setLatitude(lat);
location.setLongitude(lon);|code-block|syntax|javascript|1263345|entityMap|0|LINK|mutability|MUTABLE|url^0|0|1X|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|W|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|4]]]]

<a href="http://developer.android.com/reference/android/location/Location.html" rel="noreferrer">http://developer.android.com/reference/android/location/Location.html</a>

Look into distanceTo or distanceBetween. You can create a Location object from a latitude and longitude:

<pre><code>Location location = new Location("");
location.setLatitude(lat);
location.setLongitude(lon);
</code></pre>

blocks|key|1263371|text|你可以使用几种方法，但是要确定哪种方法最好，我们首先需要知道你是否知道用户的高度，以及其他点的高度？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1263372|根据您所追求的精度水平，您可以查看Haversine或Vincenty公式。|1263373|这些页面详细介绍了公式，对于不太喜欢数学的人，还提供了如何在脚本中实现它们的解释！|1263374|哈维正弦公式：http://www.movable-type.co.uk/scripts/latlong.html|offset|length|1263375|文森锡公式：http://www.movable-type.co.uk/scripts/latlong-vincenty.html|1263376|如果您对公式中的任何含义有任何问题，请发表意见，我会尽我最大的努力回答它们:)|1263377|entityMap|0|LINK|mutability|MUTABLE|url|http://www.movable-type.co.uk/scripts/latlong.html|1|http://www.movable-type.co.uk/scripts/latlong-vincenty.html^0|0|0|0|7|1E|0|0|6|1N|1|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@$H|11|I|12|1|13]]|A|$]]|$1|J|3|K|5|6|7|14|8|@]|9|@$H|15|I|16|1|17]]|A|$]]|$1|L|3|M|5|6|7|18|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]]]

There are a couple of methods you could use, but to determine which one is best we first need to know if you are aware of the user's altitude, as well as the altitude of the other points?

Depending on the level of accuracy you are after, you could look into either the Haversine or Vincenty formulae...

These pages detail the formulae, and, for the less mathematically inclined also provide an explanation of how to implement them in script!

Haversine Formula: <a href="http://www.movable-type.co.uk/scripts/latlong.html" rel="noreferrer">http://www.movable-type.co.uk/scripts/latlong.html</a>

Vincenty Formula: <a href="http://www.movable-type.co.uk/scripts/latlong-vincenty.html" rel="noreferrer">http://www.movable-type.co.uk/scripts/latlong-vincenty.html</a>

If you have any problems with any of the meanings in the formulae, just comment and I'll do my best to answer them :)

blocks|key|1048748|text|Location+loc1+=+new+Location("");
loc1.setLatitude(lat1);
loc1.setLongitude(lon1);

Location+loc2+=+new+Location("");
loc2.setLatitude(lat2);
loc2.setLongitude(lon2);

float+distanceInMeters+=+loc1.distanceTo(loc2);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1048749|参考：http://developer.android.com/reference/android/location/Location.html#distanceTo(android.location.Location)|unstyled|offset|length|1048750|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/location/Location.html#distanceTo(android.location.Location)^0|0|3|2Z|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>Location loc1 = new Location("");
loc1.setLatitude(lat1);
loc1.setLongitude(lon1);

Location loc2 = new Location("");
loc2.setLatitude(lat2);
loc2.setLongitude(lon2);

float distanceInMeters = loc1.distanceTo(loc2);
</code></pre>

Reference: <a href="http://developer.android.com/reference/android/location/Location.html#distanceTo(android.location.Location)">http://developer.android.com/reference/android/location/Location.html#distanceTo(android.location.Location)</a>

blocks|key|1048769|text|有两种方法可以获得LatLng之间的距离。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1048770|public+static+void+distanceBetween+(double+startLatitude,+double+startLongitude,+double+endLatitude,+double+endLongitude,+float[]+results)|code-block|syntax|javascript|1048771|See+this|offset|length|1048772|第二个|1048773|由普拉文回答的public+float+distanceTo+(Location+dest)。|style|CODE|1048774|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/location/Location.html#distanceBetween(double,%2520double,%2520double,%2520double,%2520float[])^0|0|0|0|8|0|0|0|7|13|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@$I|11|J|12|1|13]]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|15|8|@$I|16|J|17|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

There are two ways to get distance between LatLng.

<pre><code>public static void distanceBetween (double startLatitude, double startLongitude, double endLatitude, double endLongitude, float[] results)
</code></pre>

<a href="http://developer.android.com/reference/android/location/Location.html#distanceBetween(double,%20double,%20double,%20double,%20float[])" rel="nofollow">See this</a>

and second

<code>public float distanceTo (Location dest)</code> as answered by praveen.

blocks|key|1048813|text|只需使用以下方法，通过lat和long传递并获得以米为单位距离：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1048814|private+static+double+distance_in_meter(final+double+lat1,+final+double+lon1,+final+double+lat2,+final+double+lon2)+{
++++double+R+=+6371000f;+//+Radius+of+the+earth+in+m
++++double+dLat+=+(lat1+-+lat2)+*+Math.PI+/+180f;
++++double+dLon+=+(lon1+-+lon2)+*+Math.PI+/+180f;
++++double+a+=+Math.sin(dLat/2)+*+Math.sin(dLat/2)+%2B
++++++++++++Math.cos(latlong1.latitude+*+Math.PI+/+180f)+*+Math.cos(latlong2.latitude+*+Math.PI+/+180f)+*
++++++++++++++++++++Math.sin(dLon/2)+*+Math.sin(dLon/2);
++++double+c+=+2f+*+Math.atan2(Math.sqrt(a),+Math.sqrt(1-a));
++++double+d+=+R+*+c;
++++return+d;
}|code-block|syntax|javascript|1048815|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Just use the following method, pass it lat and long and get distance in meter:

<pre><code>private static double distance_in_meter(final double lat1, final double lon1, final double lat2, final double lon2) {
 double R = 6371000f; // Radius of the earth in m
 double dLat = (lat1 - lat2) * Math.PI / 180f;
 double dLon = (lon1 - lon2) * Math.PI / 180f;
 double a = Math.sin(dLat/2) * Math.sin(dLat/2) +
 Math.cos(latlong1.latitude * Math.PI / 180f) * Math.cos(latlong2.latitude * Math.PI / 180f) *
 Math.sin(dLon/2) * Math.sin(dLon/2);
 double c = 2f * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
 double d = R * c;
 return d;
}
</code></pre>

blocks|key|1048823|text|private+float+getDistance(double+lat1,+double+lon1,+double+lat2,+double+lon2)+{
++++++++float[]+distance+=+new+float[2];
++++++++Location.distanceBetween(lat1,+lon1,+lat2,+lon2,+distance);
++++++++return+distance[0];
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1048824|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>private float getDistance(double lat1, double lon1, double lat2, double lon2) {
 float[] distance = new float[2];
 Location.distanceBetween(lat1, lon1, lat2, lon2, distance);
 return distance[0];
 }
</code></pre>

blocks|key|1263508|text|您可以使用google+Map+API+Google+Map+API获取距离和时间|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1263509|只需将下载的JSON传递给此方法，您将获得两个latlong之间的实时距离和时间|1263510|void+parseJSONForDurationAndKMS(String+json)+throws+JSONException+{

++++Log.d(TAG,+"called+parseJSONForDurationAndKMS");
++++JSONObject+jsonObject+=+new+JSONObject(json);
++++String+distance;
++++String+duration;
++++distance+=+jsonObject.getJSONArray("routes").getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONObject("distance").getString("text");
++++duration+=+jsonObject.getJSONArray("routes").getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONObject("duration").getString("text");

++++Log.d(TAG,+"distance+:+"+%2B+distance);
++++Log.d(TAG,+"duration+:+"+%2B+duration);

++++distanceBWLats.setText("Distance+:+"+%2B+distance+%2B+"\n"+%2B+"Duration+:+"+%2B+duration);


}|code-block|syntax|javascript|1263511|entityMap|0|LINK|mutability|MUTABLE|url|https://maps.googleapis.com/maps/api/directions/json?&mode=DRIVING&origin=17.4507149,78.3696822&destination=17.4879758,78.4019319&sensor=false^0|K|E|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

you can get distance and time using google Map API
<a href="https://maps.googleapis.com/maps/api/directions/json?&amp;mode=DRIVING&amp;origin=17.4507149,78.3696822&amp;destination=17.4879758,78.4019319&amp;sensor=false" rel="nofollow noreferrer">Google Map API</a>

just pass downloaded JSON to this method you will get real time Distance and Time between two latlong's 

<pre><code>void parseJSONForDurationAndKMS(String json) throws JSONException {

 Log.d(TAG, "called parseJSONForDurationAndKMS");
 JSONObject jsonObject = new JSONObject(json);
 String distance;
 String duration;
 distance = jsonObject.getJSONArray("routes").getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONObject("distance").getString("text");
 duration = jsonObject.getJSONArray("routes").getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONObject("duration").getString("text");

 Log.d(TAG, "distance : " + distance);
 Log.d(TAG, "duration : " + duration);

 distanceBWLats.setText("Distance : " + distance + "\n" + "Duration : " + duration);


}
</code></pre>

I want to make an app which checks the nearest place where a user is. I can easily get the location of the user and I have already a list of places with latitude and longitude.

What would be the best way to know the nearest place of the list against the current user location. 

I could not find anything in the google APIs.

Get the distance between two geo points

JSON

我想做一个应用程序，检查最近的地方，用户在哪里。我可以很容易地获得用户的位置，并且我已经有了一个带有纬度和经度的地点列表。了解列表中与当前用户位置最近的位置的最佳方法是什么？我在google API中找不到任何东西。

问获取两个地理点之间的距离
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