添加多个航点时出现Google Maps Directionsurl错误
我正试图添加多个航点到我的谷歌方向请求。
当我添加一个单一的路标像
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，但是当我尝试添加像多个航点
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“不受支持的url”错误。 什么是添加多个航点的正确方法？ 谢谢
我一步一步给你解决scheme
首先，我们应该得到 Google Map SDK
将以下捆绑包拖到您的项目中（当出现提示时，如果需要，请select复制项目）：
Subspecs/Base/Frameworks/GoogleMapsBase.framework Subspecs/Maps/Frameworks/GoogleMaps.framework Subspecs/Maps/Frameworks/GoogleMapsCore.framework
在项目中右键单击GoogleMaps.framework，然后selectShow In Finder。
将Google资源文件夹中的GoogleMaps.bundle拖动到您的项目中。 出现提示时，确保将项目复制到目标组的文件夹未选中。
从Project Navigator中select您的项目，并select您的应用程序的目标。
打开Build Phases选项卡，在Link Binary with Libraries中添加以下框架：
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
现在获取API密钥
现在您需要在Plist中添加以下内容
AppDelegate.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]; }
编译标记 – 绘图线
-(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; }