添加多个航点时的Google地图路线url错误

Question

我正在尝试向我的Google方向要求添加多个航点。

当我添加一个航点像

https://maps.googleapis.com/maps/api/directions/json?&origin=51.507679,-0.125004&waypoints=51.524151,-0.123174&destination=51.495777,-0.108642&mode=walking

它工作正常，但是当我尝试添加多个航点像

https://maps.googleapis.com/maps/api/directions/json?&origin=51.606502,0.527309&waypoints=51.507679,-0.125004|51.524151,-0.123174&destination=51.495777,-0.108642&mode=walking 

我收到“不支持的URL”的错误。什么是添加多个航点的正确方法？由于

Answer 1

我给你的解决方案一步一步

首先，我们应该得到的Google Map SDK

拖动下面的包到您的项目（提示时，如果需要选择Copy项）：

Subspecs/Base/Frameworks/GoogleMapsBase.framework 
Subspecs/Maps/Frameworks/GoogleMaps.framework 
Subspecs/Maps/Frameworks/GoogleMapsCore.framework 

右键单击项目中的GoogleMaps.framework，然后选择Show In Fi的nDer。

将GoogleMaps.bundle从Resources文件夹拖到项目中。出现提示时，确保未将项目复制到目标组的文件夹中。

从Project Navigator中选择您的项目，然后选择您的应用程序的目标。

打开构建阶段选项卡，并在链接二进制与图书馆，添加以下框架：

GoogleMapsBase.framework 
GoogleMaps.framework 
GoogleMapsCore.framework 
GoogleMapsM4B.framework (Premium Plan customers only) 
Accelerate.framework 
CoreData.framework 
CoreGraphics.framework 
CoreLocation.framework 
CoreText.framework 
GLKit.framework 
ImageIO.framework 
libc++.tbd 
libz.tbd 
OpenGLES.framework 
QuartzCore.framework 
SystemConfiguration.framework 
UIKit.framework 

现在Get the API key

现在，您需要添加下列事项的plist

Ap pDelegate.m

@import GoogleMaps; 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    [GMSServices provideAPIKey:@"YOUR API KEY"]; 
    return YES; 
} 

ViewController.h

#import <UIKit/UIKit.h> 
#import <CoreLocation/CoreLocation.h> 
#import <GoogleMaps/GoogleMaps.h> 


@interface ViewController : UIViewController<CLLocationManagerDelegate,GMSMapViewDelegate>{ 
    CLLocation *currentLocation; 
} 

@property (strong, nonatomic) IBOutlet UIView *viewMarker; 
@property (nonatomic, strong) CLLocationManager *locationManager; 
@property (nonatomic, strong) GMSMapView *mapView; 
@end 

ViewController.m

#import "ViewController.h" 
@interface ViewController() 
@end 
@implementation ViewController 
@synthesize viewMarker,locationManager, 
@synthesize mapView; 

- (void)viewDidLoad { 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view from its nib. 
    locationManager = [[CLLocationManager alloc]init]; 
    locationManager.delegate = self; 
    locationManager.distanceFilter = 10; 
    locationManager.desiredAccuracy = kCLLocationAccuracyBest; 
    if([CLLocationManager locationServicesEnabled] == NO){ 
     NSLog(@"Your location service is not enabled, So go to Settings > Location Services"); 
    } 
    else{ 
     NSLog(@"Your location service is enabled"); 
    } 
    if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) { 
     [locationManager requestWhenInUseAuthorization]; 
    } 
    [locationManager startUpdatingLocation]; 
} 

#pragma mark - CLLocationManagerDelegate method 
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{ 
    currentLocation = [locations lastObject]; 
    if (currentLocation != nil){ 
     NSLog(@"The latitude value is - %@",[NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude]); 
     NSLog(@"The logitude value is - %@",[NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude]); 
    } 
    //Current 
    GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:currentLocation.coordinate.latitude longitude: currentLocation.coordinate.longitude zoom:13]; 

    self.mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera]; 
    self.mapView.myLocationEnabled = YES; 
    self.mapView.delegate = self; 
    self.mapView.frame = viewMarker.bounds; 
    [viewMarker addSubview:self.mapView]; 

    GMSMarker *marker1 = [[GMSMarker alloc] init]; 
    //Current 
    marker1.position = CLLocationCoordinate2DMake(currentLocation.coordinate.latitude, currentLocation.coordinate.longitude); 
    marker1.icon = [UIImage imageNamed:@"boss-icon.png"]; 
    marker1.map = self.spyMapView; 

    NSArray *arrLatLongValue = @[ 
           @{ 
            @"Latitude":@"12.9003", 
            @"Longitude":@"80.2278" 
            }, 
           @{ 
            @"Latitude":@"12.8447", 
            @"Longitude":@"80.2254" 
            }, 
           @{ 
            @"Latitude":@"12.7726", 
            @"Longitude":@"80.2488" 
            }, 
           @{ 
            @"Latitude":@"12.9171", 
            @"Longitude":@"80.1923" 
            } 
           ]; 

    NSString *strWayPoints = [NSString stringWithFormat:@"via:%f,%f", [arrLatLongValue[0][@"Latitude"] doubleValue], [arrLatLongValue[0][@"Longitude"] doubleValue]]; 
    for(int j=0;j<arrLatLongValue.count;j++){ 
     CLLocationCoordinate2D position = { [[arrLatLongValue[j] objectForKey:@"Latitude"] doubleValue], [[arrLatLongValue[j] objectForKey:@"Longitude"] doubleValue] }; 
     GMSMarker *marker = [GMSMarker markerWithPosition:position]; 
     marker.title = [NSString stringWithFormat:@"Marker %i", j]; 
     marker.appearAnimation = YES; 
     marker.flat = YES; 
     if(j < 2) 
      marker.icon = [GMSMarker markerImageWithColor:[UIColor redColor]]; 
     else if(j >= 2 && j < 4) 
      marker.icon = [GMSMarker markerImageWithColor:[UIColor purpleColor]]; 
     else 
      marker.icon = [GMSMarker markerImageWithColor:[UIColor greenColor]]; 

     if(j > 0) 
      strWayPoints = [NSString stringWithFormat:@"%@|via:%f,%f", strWayPoints, [arrLatLongValue[j][@"Latitude"] doubleValue], [arrLatLongValue[j][@"Longitude"] doubleValue]]; 

     marker.map = self.mapView; 
    } 
    //Current 
    NSString *originString = [NSString stringWithFormat:@"%f,%f",currentLocation.coordinate.latitude, currentLocation.coordinate.longitude]; 


    NSString *destinationString = [NSString stringWithFormat:@"%f,%f", @(12.9220085).doubleValue, @(80.0954032).doubleValue]; 

    NSString *str = [NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/directions/json?origin=%@&destination=%@&waypoints=%@&key=YOUR API KEY",originString,destinationString,strWayPoints]; 
    NSURL *url=[[NSURL alloc]initWithString:[str stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]]]; 
    NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; 
    NSURLSessionDataTask * dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 
     if(data == nil) { 
      return; 
     }else{ 
      NSDictionary* json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; 
      NSArray* latestRoutes = [json objectForKey:@"routes"]; 
      NSString *points=[[[latestRoutes objectAtIndex:0] objectForKey:@"overview_polyline"] objectForKey:@"points"]; 
      @try { 
       // TODO: better parsing. Regular expression? 
       NSArray *temp= [self decodePolyLine:[points mutableCopy]]; 
       GMSMutablePath *path = [GMSMutablePath path]; 
       for(int idx = 0; idx < [temp count]; idx++){ 
        CLLocation *location=[temp objectAtIndex:idx]; 
        [path addCoordinate:location.coordinate]; 
       } 
       // create the polyline based on the array of points. 
       GMSPolyline *rectangle = [GMSPolyline polylineWithPath:path]; 
       rectangle.strokeWidth=5.0; 
       rectangle.map = self.spyMapView; 
       [locationManager stopUpdatingLocation]; 
      } 
      @catch (NSException * e) { 
       // TODO: show erro 
      } 
     } 
    }]; 
    [dataTask resume]; 
    } 
    [locationManager stopUpdatingLocation]; 
} 

编译马克 - 画线

-(NSMutableArray *)decodePolyLine: (NSMutableString *)encoded { 
    [encoded replaceOccurrencesOfString:@"\\\\" withString:@"\\" 
           options:NSLiteralSearch 
            range:NSMakeRange(0, [encoded length])]; 
    NSInteger len = [encoded length]; 
    NSInteger index = 0; 
    NSMutableArray *array = [[NSMutableArray alloc] init] ; 
    NSInteger lat=0; 
    NSInteger lng=0; 
    while (index < len) { 
     NSInteger b; 
     NSInteger shift = 0; 
     NSInteger result = 0; 
     do { 
      b = [encoded characterAtIndex:index++] - 63; 
      result |= (b & 0x1f) << shift; 
      shift += 5; 
     } while (b >= 0x20); 
     NSInteger dlat = ((result & 1) ? ~(result >> 1) : (result >> 1)); 
     lat += dlat; 
     shift = 0; 
     result = 0; 
     do { 
      b = [encoded characterAtIndex:index++] - 63; 
      result |= (b & 0x1f) << shift; 
      shift += 5; 
     } while (b >= 0x20); 
     NSInteger dlng = ((result & 1) ? ~(result >> 1) : (result >> 1)); 
     lng += dlng; 
     NSNumber *latitude = [[NSNumber alloc] initWithFloat:lat * 1e-5] ; 
     NSNumber *longitude = [[NSNumber alloc] initWithFloat:lng * 1e-5] ; 
     printf("[%f,", [latitude doubleValue]); 
     printf("%f]", [longitude doubleValue]); 
     CLLocation *loc = [[CLLocation alloc] initWithLatitude:[latitude floatValue] longitude:[longitude floatValue]] ; 
     [array addObject:loc]; 
    } 

    return array; 
}