blocks|key|993756|text|基本上，您需要创建一个到Google+Directions+API的HTTP+request。服务条款规定你必须在谷歌地图上显示结果，但我认为因为你使用的是MKMapView，所以你会很好：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|993757|993758|方向应用程序接口只能与在谷歌地图上显示结果结合使用；禁止在不显示请求方向数据的地图的情况下使用方向数据。|blockquote|993759|993760|993761|有关需要在Directions+Request上传递的参数的详细信息，请查看该URL：|993762|993763|+http://maps.google.com/maps/api/directions/output?parameters|993764|993765|993766|您得到的数据将是JSON或XML，这取决于您请求(输出)的内容，因此您需要对其进行解析，以获得描述方向的点集。|993767|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/apis/maps/documentation/directions/|1|http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSURLConnection_Class/Reference/Reference.html|2|http://code.google.com/apis/maps/documentation/directions/#DirectionsRequests|3|http://maps.google.com/maps/api/directions/output?parameters|4|http://code.google.com/p/json-framework/|5|http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSXMLParser_Class/Reference/Reference.html^0|C|L|0|Y|C|1|0|0|0|0|0|5|I|2|0|0|1|1O|3|0|0|0|8|4|4|D|3|5|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]|$A|1E|B|1F|1|1G]]|C|$]]|$1|D|3|-4|5|6|7|1H|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|1I|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|1J|8|@]|9|@]|C|$]]|$1|I|3|-4|5|6|7|1K|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|1L|8|@]|9|@$A|1M|B|1N|1|1O]]|C|$]]|$1|L|3|-4|5|6|7|1P|8|@]|9|@]|C|$]]|$1|M|3|N|5|G|7|1Q|8|@]|9|@$A|1R|B|1S|1|1T]]|C|$]]|$1|O|3|-4|5|6|7|1U|8|@]|9|@]|C|$]]|$1|P|3|-4|5|6|7|1V|8|@]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1W|8|@]|9|@$A|1X|B|1Y|1|1Z]|$A|20|B|21|1|22]]|C|$]]|$1|S|3|-4|5|6|7|23|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|V|W|X|C|$Y|11]]|12|$5|V|W|X|C|$Y|13]]|14|$5|V|W|X|C|$Y|15]]|16|$5|V|W|X|C|$Y|17]]|18|$5|V|W|X|C|$Y|19]]]]

Basically you will need to make an <a href="http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSURLConnection_Class/Reference/Reference.html" rel="nofollow noreferrer">HTTP request</a> to the <a href="http://code.google.com/apis/maps/documentation/directions/" rel="nofollow noreferrer">Google Directions API</a>. The terms of service state that you have to display the results on a Google map, but I think because you are using an MKMapView, you will be fine:

<blockquote>
 the Directions API may only be used in conjunction with displaying results on a Google map; using Directions data without displaying a map for which directions data was requested is prohibited.
</blockquote>

Check out the <a href="http://code.google.com/apis/maps/documentation/directions/#DirectionsRequests" rel="nofollow noreferrer">Directions Request</a> for details on the parameters you will need to pass on the URL:

<blockquote>
 <a href="http://maps.google.com/maps/api/directions/output?parameters" rel="nofollow noreferrer">http://maps.google.com/maps/api/directions/output?parameters</a>
</blockquote>

The data you get back will be <a href="http://code.google.com/p/json-framework/" rel="nofollow noreferrer">JSON</a> or <a href="http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSXMLParser_Class/Reference/Reference.html" rel="nofollow noreferrer">XML</a> depending on what you asked for (output), so you will need to parse that to get the set of points describing the directions.

blocks|key|1739173|text|我知道这是一个古老的问题，但现在你也可以使用MapKit的MKDirections。例如，下面是一个例程，它搜索一些searchString，然后在地图视图中添加指向第一个命中的your的方向：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1739174|let+request+=+MKLocalSearch.Request()
request.region+=+mapView.region
request.naturalLanguageQuery+=+searchString

let+search+=+MKLocalSearch(request:+request)
search.start+{+response,+_+in
++++guard+let+mapItem+=+response?.mapItems.first+else+{+return+}

++++let+request+=+MKDirections.Request()
++++request.source+=+MKMapItem.forCurrentLocation()
++++request.destination+=+mapItem
++++let+directions+=+MKDirections(request:+request)
++++directions.calculate+{+response,+error+in
++++++++guard+let+routes+=+response?.routes+else+{+return+}

++++++++let+overlays+=+routes.map+{+$0.polyline+}
++++++++self.mapView.addOverlays(overlays)
++++}
}|code-block|syntax|javascript|1739175|为确保在地图上进行渲染，请确保设置地图视图的delegate属性(在IB中或以编程方式)，然后实现mapView(_:rendererFor:)|1739176|extension+MapViewController:+MKMapViewDelegate+{
++++func+mapView(_+mapView:+MKMapView,+rendererFor+overlay:+MKOverlay)+->+MKOverlayRenderer+{
++++++++let+renderer+=+MKPolylineRenderer(overlay:+overlay)
++++++++renderer.strokeColor+=+.init(red:+0,+green:+0,+blue:+1,+alpha:+0.7)
++++++++return+renderer
++++}
}|1739177|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/mapkit/mkdirections|1|https://developer.apple.com/documentation/mapkit/mkmapview/1452115-delegate|2|https://developer.apple.com/documentation/mapkit/mkmapviewdelegate/1452203-mapview^0|T|C|1M|C|T|C|0|0|0|M|8|1D|N|M|8|1|1D|N|2|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|F|3|G|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@$9|1E|A|1F|1|1G]|$9|1H|A|1I|1|1J]]|E|$]]|$1|M|3|N|5|H|7|1K|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|1L|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]|Y|$5|R|S|T|E|$U|Z]]]]

I know this is an old question, but nowadays you can also use MapKit’s <a href="https://developer.apple.com/documentation/mapkit/mkdirections" rel="nofollow noreferrer"><code>MKDirections</code></a>. For example, here’s a routine to search for some <code>searchString</code> and then add directions to the first hit on to your map view:

<pre><code>let request = MKLocalSearch.Request()
request.region = mapView.region
request.naturalLanguageQuery = searchString

let search = MKLocalSearch(request: request)
search.start { response, _ in
 guard let mapItem = response?.mapItems.first else { return }

 let request = MKDirections.Request()
 request.source = MKMapItem.forCurrentLocation()
 request.destination = mapItem
 let directions = MKDirections(request: request)
 directions.calculate { response, error in
 guard let routes = response?.routes else { return }

 let overlays = routes.map { $0.polyline }
 self.mapView.addOverlays(overlays)
 }
}
</code></pre>

To make sure this is rendered on your map, you would make sure to set your map view’s <a href="https://developer.apple.com/documentation/mapkit/mkmapview/1452115-delegate" rel="nofollow noreferrer"><code>delegate</code></a> property (either in IB or programmatically) and then implement <a href="https://developer.apple.com/documentation/mapkit/mkmapviewdelegate/1452203-mapview" rel="nofollow noreferrer"><code>mapView(_:rendererFor:)</code></a>:

<pre><code>extension MapViewController: MKMapViewDelegate {
 func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -&gt; MKOverlayRenderer {
 let renderer = MKPolylineRenderer(overlay: overlay)
 renderer.strokeColor = .init(red: 0, green: 0, blue: 1, alpha: 0.7)
 return renderer
 }
}
</code></pre>

I'm trying to add a routing feature to an app I'm working on. I found Craig Spitzkoff's <a href="http://spitzkoff.com/craig/?p=65" rel="nofollow noreferrer">article</a> on how to draw lines on an <code>MKMapView</code> which works pretty good. But since I don't have the coordinates of the points on the roads that doesn't help me as expected. Is there any way to determine the coordinates between to given points, say my current position and another address?

Adding a route to a MKMapView

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我正在尝试为我正在开发的应用程序添加路由功能。我找到了Craig Spitzkoff关于如何在MKMapView上画线的，它工作得很好。但由于我没有道路上的点的坐标，这对我没有帮助。有没有办法确定给定点之间的坐标，比如我的当前位置和另一个地址？

问向MKMapView添加路由
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问向MKMapView添加路由EN