Google Maps iOS SDK,获取2个地点之间的路线

Question

当我使用谷歌地图SDK时,我正试图在iOS上的两个位置之间获得驾驶方向.我知道我们可以用两种方法做到这一点: -

1.)使用URL方案,您的设备上必须安装Google Maps App.

2.)使用Directions API,通过Request-Response然后解析JSON.显示标记以显示方向.

现在,我的问题是,我可以通过其他任何方式在iOS上执行此操作吗？我需要显示从当前位置到我有Lat/Long的特定位置的方向.

我的意思是,真的不可能简单地传递2个位置作为参数和谷歌地图SDK,会给我指示吗？

谢谢,

Answer 1

    NSString *urlString = [NSString stringWithFormat:
                       @"%@?origin=%f,%f&destination=%f,%f&sensor=true&key=%@",
                       @"https://maps.googleapis.com/maps/api/directions/json",
                       mapView.myLocation.coordinate.latitude,
                       mapView.myLocation.coordinate.longitude,
                       destLatitude,
                       destLongitude,
                       @"Your Google Api Key String"];
NSURL *directionsURL = [NSURL URLWithString:urlString];


ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:directionsURL];
[request startSynchronous];
NSError *error = [request error];
if (!error) {
    NSString *response = [request responseString];
    NSLog(@"%@",response);
    NSDictionary *json =[NSJSONSerialization JSONObjectWithData:[request responseData] options:NSJSONReadingMutableContainers error:&error];
    GMSPath *path =[GMSPath pathFromEncodedPath:json[@"routes"][0][@"overview_polyline"][@"points"]];
    GMSPolyline *singleLine = [GMSPolyline polylineWithPath:path];
    singleLine.strokeWidth = 7;
    singleLine.strokeColor = [UIColor greenColor];
    singleLine.map = self.mapView;
}
else NSLog(@"%@",[request error]);

注意:确保您的Google Directions API Sdk在您的Google开发者控制台中启用.

Answer 2

听起来您正在寻找像谷歌地图应用程序用于显示路线的UI Chrome.适用于iOS的Google Maps SDK会为您绘制地图,但您需要负责其他导航镶边.

您可以使用Google Directions API来请求路线,然后使用从服务返回的编码路径,使用GMSPath的pathFromEncodedPath:方法绘制GMSPolyline.

Answer 3

这些线显示给定纬度/经度与用户位置之间的位置;

NSString *googleMapUrlString = [NSString stringWithFormat:@"http://maps.google.com/?saddr=%f,%f&daddr=%@,%@", mapView.userLocation.coordinate.latitude, mapView.userLocation.coordinate.longitude, destinationLatitude, destinationLongtitude];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:googleMapUrlString]];

Answer 4

斯威夫特 4.1，Xcode 9.4.1

//Here you need to set your origin and destination points and mode 
let url = NSURL(string: "https://maps.googleapis.com/maps/api/directions/json?origin=Machilipatnam&destination=Vijayawada&mode=driving")

//OR if you want to use latitude and longitude for source and destination
//let url = NSURL(string: "\("https://maps.googleapis.com/maps/api/directions/json")?origin=\("17.521100"),\("78.452854")&destination=\("15.1393932"),\("76.9214428")")

        let task = URLSession.shared.dataTask(with: url! as URL) { (data, response, error) -> Void in

            do {
                if data != nil {
                    let dic = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableLeaves) as!  [String:AnyObject]
//                        print(dic)

                    let status = dic["status"] as! String
                    var routesArray:String!
                    if status == "OK" {
                        routesArray = (((dic["routes"]!as! [Any])[0] as! [String:Any])["overview_polyline"] as! [String:Any])["points"] as! String
//                            print("routesArray: \(String(describing: routesArray))")
                    }

                    DispatchQueue.main.async {
                        let path = GMSPath.init(fromEncodedPath: routesArray!)
                        let singleLine = GMSPolyline.init(path: path)
                        singleLine.strokeWidth = 6.0
                        singleLine.strokeColor = .blue
                        singleLine.map = mapView
                    }

                }
            } catch {
                print("Error")
            }
        }

        task.resume()

在这里，您需要将您的密钥（google api 密钥）添加到上述 API 中。

Answer 5

我已经完成了它,因为它还在DIRECTION ROUTE地图上显示PINS DISTANCE AND DURATION.但请不要忘记在GOOGLE DEVELOPER CONSOLE中设置您的GOOGLE DIRECTION API

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager.requestSerializer setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];

NSString *urlString =@"https://maps.googleapis.com/maps/api/directions/json";

 NSDictionary *dictParameters = @{@"origin" : [NSString stringWithFormat:@"%@",_sourceAdd], @"destination" : [NSString stringWithFormat:@"%@",_destinationAdd], @"mode" : @"driving", @"key":@"AIzaSyD9cWTQkAxemELVXTNUCALOmzlDv5b9Dhg"};

[manager GET:urlString parameters:dictParameters success:^(AFHTTPRequestOperation *operation, id responseObject) {


    GMSPath *path =[GMSPath pathFromEncodedPath:responseObject[@"routes"][0][@"overview_polyline"][@"points"]];
    NSDictionary *arr=responseObject[@"routes"][0][@"legs"];
    NSMutableArray *loc=[[NSMutableArray alloc]init];

    loc=[[arr valueForKey:@"start_location"]valueForKey:@"lat"];
    _sourceloc.latitude=[loc[0] doubleValue];

    loc=[[arr valueForKey:@"start_location"]valueForKey:@"lng"];
    _sourceloc.longitude=[loc[0] doubleValue];

    loc=[[arr valueForKey:@"end_location"]valueForKey:@"lat"];
    _destinationloc.latitude=[loc[0] doubleValue];

    loc=[[arr valueForKey:@"end_location"]valueForKey:@"lng"];
    _destinationloc.longitude=[loc[0] doubleValue];


    NSString *dis,*dur;
    loc=[[arr valueForKey:@"distance"]valueForKey:@"text"];
    dis=loc[0];

    loc=[[arr valueForKey:@"duration"]valueForKey:@"text"];
    dur=loc[0];


    NSString *sa,*da;
    loc=[arr valueForKey:@"start_address"];
    sa=loc[0];

    loc=[arr valueForKey:@"end_address"];
    da=loc[0];

    UIAlertView *av=[[UIAlertView alloc]initWithTitle:@"Route Info" message:[NSString stringWithFormat:@"Distance:%@ \nDuration:%@",dis,dur] delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil, nil];
    [av show];



    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:_sourceloc.latitude  longitude:_sourceloc.longitude zoom:10];
    mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];

    GMSMarker *marker = [GMSMarker markerWithPosition:_sourceloc];
    marker.title=@"Source";
    marker.snippet =sa;
    marker.appearAnimation = kGMSMarkerAnimationPop;
    marker.map = mapView;


    GMSMarker *marker2 = [GMSMarker markerWithPosition:_destinationloc];
    marker2.title=@"Destination";
    marker2.snippet =da;
    marker2.appearAnimation = kGMSMarkerAnimationPop;
    marker2.map = mapView;

    GMSPolyline *singleLine = [GMSPolyline polylineWithPath:path];
    singleLine.strokeWidth = 4;
    singleLine.strokeColor = [UIColor blueColor];
    singleLine.map = mapView;

    self.view = mapView;



} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

Answer 6

Swift 3.0和XCode 8.0 使用AFNetworking和SwiftJson

        let destLatitude="26.9124"
        let destLongitude="75.7873"
        mapView.isMyLocationEnabled = true
        var urlString = "\("https://maps.googleapis.com/maps/api/directions/json")?origin=\("28.7041"),\("77.1025")&destination=\(destLatitude),\(destLongitude)&sensor=true&key=\("Your-Api-key")"

        urlString = urlString.addingPercentEncoding( withAllowedCharacters: .urlQueryAllowed)!

        let manager=AFHTTPRequestOperationManager()

        manager.responseSerializer = AFJSONResponseSerializer(readingOptions: JSONSerialization.ReadingOptions.allowFragments) as AFJSONResponseSerializer

        manager.requestSerializer = AFJSONRequestSerializer() as AFJSONRequestSerializer

        manager.responseSerializer.acceptableContentTypes = NSSet(objects:"application/json", "text/html", "text/plain", "text/json", "text/javascript", "audio/wav") as Set<NSObject>


        manager.post(urlString, parameters: nil, constructingBodyWith: { (formdata:AFMultipartFormData!) -> Void in

            }, success: {  operation, response -> Void in
                //{"responseString" : "Success","result" : {"userId" : "4"},"errorCode" : 1}
                //if(response != nil){
                let parsedData = JSON(response)
                print_debug("parsedData : \(parsedData)")
               var path = GMSPath.init(fromEncodedPath: parsedData["routes"][0]["overview_polyline"]["points"].string!)
                 //GMSPath.fromEncodedPath(parsedData["routes"][0]["overview_polyline"]["points"].string!)
                var singleLine = GMSPolyline.init(path: path)
                singleLine.strokeWidth = 7
                singleLine.strokeColor = UIColor.green
                singleLine.map = self.mapView
                //let loginResponeObj=LoginRespone.init(fromJson: parsedData)


                //  }
            }, failure: {  operation, error -> Void in

                print_debug(error)
                let errorDict = NSMutableDictionary()
                errorDict.setObject(ErrorCodes.errorCodeFailed.rawValue, forKey: ServiceKeys.keyErrorCode.rawValue as NSCopying)
                errorDict.setObject(ErrorMessages.errorTryAgain.rawValue, forKey: ServiceKeys.keyErrorMessage.rawValue as NSCopying)

        })