रास्ते की जानकारी पाएं

इस गाइड का पालन करके अपना ऐप्लिकेशन सेट अप करें और मौजूदा रूट के लिए समय, दूरी, और रूट की जानकारी पाएं.

चेतावनी: continueToNextDestination() को कॉल करने के बाद, नेविगेटर पिछले डेस्टिनेशन के बारे में पूरी तरह भूल जाता है. अगर आपको किसी रास्ते की जानकारी को सेव करना है या उसका विश्लेषण करना है, तो continueToNextDestination() को कॉल करने से पहले, आपको इसे नेविगेटर से हासिल करना होगा.

खास जानकारी

मौजूदा रास्ते के बारे में जानकारी पाने के लिए, navigator इंस्टेंस से सही प्रॉपर्टी लें:

• GMSNavigator.timeToNextDestination का इस्तेमाल करके, मौजूदा रास्ते पर अगली मंज़िल तक पहुंचने का अनुमानित समय सेकंड में बताया जा सकता है.
• GMSNavigator.distanceToNextDestination मौजूदा रास्ते पर अगली मंज़िल की दूरी मीटर में जानने के लिए.
• GMSNavigationDelayCategory का इस्तेमाल करके ट्रैफ़िक के फ़्लो की देरी की कैटगरी देखी जा सकती है.
• GMSNavigator.currentRouteLeg यहां क्लिक करें.
• GMSNavigator.traveledPath पर क्लिक करें.

कोड देखें

रास्ते की जानकारी पाने के लिए Swift कोड दिखाएं/छिपाएं.

/*
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import GoogleNavigation
import UIKit

class ViewController: UIViewController {

  var mapView: GMSMapView!
  var locationManager: CLLocationManager!

  override func loadView() {

    locationManager = CLLocationManager()

    let camera = GMSCameraPosition.camera(withLatitude: 47.67, longitude: -122.20, zoom: 14)
    mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)

    // Show the terms and conditions.
    let companyName = "Ride Sharing Co."
    GMSNavigationServices.showTermsAndConditionsDialogIfNeeded(
      withCompanyName: companyName
    ) { termsAccepted in
      guard termsAccepted else {
        // Handle the case when the user rejects the terms and conditions.
        return
      }
      // Enable navigation after the user accepts the terms.
      self.mapView.isNavigationEnabled = true
      // Request authorization to use location services.
      self.locationManager.requestAlwaysAuthorization()
    }

    self.view = mapView
    makeButtons()
  }

  // Create a route and start guidance.
  func startNav() {
    var destinations = [GMSNavigationWaypoint]()
    destinations.append(
      GMSNavigationWaypoint.init(
        placeID: "ChIJnUYTpNASkFQR_gSty5kyoUk",
        title: "PCC Natural Market")!)
    destinations.append(
      GMSNavigationWaypoint.init(
        placeID: "ChIJJ326ROcSkFQRBfUzOL2DSbo",
        title: "Marina Park")!)

    mapView.navigator?.setDestinations(destinations) { routeStatus in
      guard routeStatus == .OK else {
        print("Handle route statuses that are not OK.")
        return
      }
      self.mapView.navigator?.isGuidanceActive = true
      self.mapView.cameraMode = .following
      self.mapView.locationSimulator?.simulateLocationsAlongExistingRoute()
    }

    mapView.roadSnappedLocationProvider?.startUpdatingLocation()
  }

  func getTimeToNextDestination() {
    if let navigator = mapView.navigator {
      let time = navigator.timeToNextDestination
      let minutes = floor(time / 60)
      let seconds = round(time - minutes * 60)
      print("Time to next destination: \(minutes):\(seconds)")
    }
  }

  func getDistanceToNextDestination() {
    if let navigator = mapView.navigator {
      let distance = navigator.distanceToNextDestination
      let miles = distance * 0.00062137
      print("Distance to next destination: \(miles) miles.")
    }
  }

  func getCurrentRouteLeg() {
    if let navigator = mapView.navigator {
      let currentLeg = navigator.currentRouteLeg
      let nextDestination = currentLeg?.destinationWaypoint?.title ?? "Not Available"
      let lat = currentLeg?.destinationCoordinate.latitude.description ?? "Not Available"
      let lng = currentLeg?.destinationCoordinate.longitude.description ?? "Not Available"
      print("Destination: \(nextDestination) at (\(lat),\(lng)")
    }
  }

  func getTraveledPath() {
    if let navigator = mapView.navigator {
      let latestPath = navigator.traveledPath
      if latestPath.count() > 0 {
        let begin: CLLocationCoordinate2D = latestPath.coordinate(at: 0)
        let current: CLLocationCoordinate2D = latestPath.coordinate(at: latestPath.count() - 1)
        print(
          "Path from (\(begin.latitude),\(begin.longitude)) to (\(current.latitude),\(current.longitude))"
        )
      }
    }
  }

  // Add some buttons to the view.
  func makeButtons() {
    // Start navigation.
    let navButton = UIButton(frame: CGRect(x: 5, y: 150, width: 200, height: 35))
    navButton.backgroundColor = .blue
    navButton.alpha = 0.5
    navButton.setTitle("Start navigation", for: .normal)
    navButton.addTarget(self, action: #selector(startNav), for: .touchUpInside)
    self.mapView.addSubview(navButton)

    // Get the time to the next destination.
    let timeButton = UIButton(frame: CGRect(x: 5, y: 190, width: 200, height: 35))
    timeButton.backgroundColor = .blue
    timeButton.alpha = 0.5
    timeButton.setTitle("Time to next destination", for: .normal)
    timeButton.addTarget(self, action: #selector(getTimeToNextDestination), for: .touchUpInside)
    self.mapView.addSubview(timeButton)

    // Get the distance to the next destination.
    let distanceButton = UIButton(frame: CGRect(x: 5, y: 230, width: 200, height: 35))
    distanceButton.backgroundColor = .blue
    distanceButton.alpha = 0.5
    distanceButton.setTitle("Distance to next destination", for: .normal)
    distanceButton.addTarget(
      self, action: #selector(getDistanceToNextDestination), for: .touchUpInside)
    self.mapView.addSubview(distanceButton)

    // Get the current route leg.
    let routeButton = UIButton(frame: CGRect(x: 5, y: 270, width: 200, height: 35))
    routeButton.backgroundColor = .blue
    routeButton.alpha = 0.5
    routeButton.setTitle("Get current route leg", for: .normal)
    routeButton.addTarget(self, action: #selector(getCurrentRouteLeg), for: .touchUpInside)
    self.mapView.addSubview(routeButton)

    // Get the most recently traveled path.
    let pathButton = UIButton(frame: CGRect(x: 5, y: 310, width: 200, height: 35))
    pathButton.backgroundColor = .blue
    pathButton.alpha = 0.5
    pathButton.setTitle("Get traveled path", for: .normal)
    pathButton.addTarget(self, action: #selector(getTraveledPath), for: .touchUpInside)
    self.mapView.addSubview(pathButton)

  }

}

रास्ते की जानकारी पाने के लिए ऑब्जेक्टिव-सी कोड दिखाएं/छिपाएं.

/*
 * Copyright 2017 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#import "ViewController.h"
@import GoogleNavigation;

@interface ViewController ()

@end

@implementation ViewController {
  GMSMapView *_mapView;
  CLLocationManager *_locationManager;
}

- (void)loadView {

  _locationManager = [[CLLocationManager alloc] init];

  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:47.67
                                                          longitude:-122.20
                                                               zoom:14];
  _mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];

  // Show the terms and conditions.
  NSString *companyName = @"Ride Sharing Co.";
  [GMSNavigationServices
   showTermsAndConditionsDialogIfNeededWithCompanyName:companyName
                                              callback:^(BOOL termsAccepted) {
     if (termsAccepted) {
       // Enable navigation if the user accepts the terms.
       _mapView.navigationEnabled = YES;

       // Request authorization to use location services.
       [_locationManager requestAlwaysAuthorization];

     } else {
       // Handle the case when the user rejects the terms and conditions.
     }
   }];

  self.view = _mapView;

  [self makeButtons];
}

// Create a route and start guidance.
- (void)startNav {
  NSArray<GMSNavigationWaypoint *> *destinations =
  @[[[GMSNavigationWaypoint alloc] initWithPlaceID:@"ChIJnUYTpNASkFQR_gSty5kyoUk"
                                             title:@"PCC Natural Market"],
    [[GMSNavigationWaypoint alloc] initWithPlaceID:@"ChIJJ326ROcSkFQRBfUzOL2DSbo"
                                             title:@"Marina Park"]];

  [_mapView.navigator setDestinations:destinations
                             callback:^(GMSRouteStatus routeStatus){
                               _mapView.navigator.guidanceActive = YES;
                               _mapView.cameraMode = GMSNavigationCameraModeFollowing;
                               [_mapView.locationSimulator simulateLocationsAlongExistingRoute];
                             }];

  [_mapView.roadSnappedLocationProvider startUpdatingLocation];
}

- (void)getTimeToNextDestination {
  NSTimeInterval time = _mapView.navigator.timeToNextDestination;
  int minutes = floor(time/60);
  int seconds = round(time - minutes * 60);
  NSLog(@"%@", [NSString stringWithFormat:@"Time to next destination: %i:%i.", minutes, seconds]);
}

- (void)getDistanceToNextDestination {
  CLLocationDistance distance = _mapView.navigator.distanceToNextDestination;
  double miles = distance * 0.00062137;
  NSLog(@"%@", [NSString stringWithFormat:@"Distance to next destination: %.2f.", miles]);
}

- (void)getCurrentRouteLeg {
  GMSRouteLeg *currentSegment = _mapView.navigator.currentRouteLeg;
  NSString *nextDestination = currentSegment.destinationWaypoint.title;
  CLLocationDegrees lat = currentSegment.destinationCoordinate.latitude;
  CLLocationDegrees lng = currentSegment.destinationCoordinate.longitude;
  NSLog(@"%@", [NSString stringWithFormat:@"%@, %f/%f", nextDestination, lat, lng]);
}

- (void)getTraveledPath {
  GMSPath *latestPath = _mapView.navigator.traveledPath;
  if (latestPath.count > 0) {
    CLLocationCoordinate2D begin = [latestPath coordinateAtIndex:0];
    CLLocationCoordinate2D current = [latestPath coordinateAtIndex:latestPath.count - 1];
    NSLog(@"Path from %f/%f to %f/%f",
          begin.latitude,
          begin.longitude,
          current.latitude,
          current.longitude);
  }
}

#pragma mark - Buttons and things

// Add some buttons to the view.
- (void)makeButtons {
  // Start navigation.
  UIButton *navButton = [UIButton buttonWithType:UIButtonTypeCustom];
  [navButton addTarget:self
                action:@selector(startNav)
      forControlEvents:UIControlEventTouchUpInside];
  [navButton setTitle:@"Start navigation" forState:UIControlStateNormal];
  [navButton setBackgroundColor:[UIColor blueColor]];
  [navButton setAlpha:0.5];
  navButton.frame = CGRectMake(5.0, 150.0, 200.0, 35.0);
  [_mapView addSubview:navButton];

  // Get the time to the next destination.
  UIButton *timeButton = [UIButton buttonWithType:UIButtonTypeCustom];
  [timeButton addTarget:self
                 action:@selector(getTimeToNextDestination)
       forControlEvents:UIControlEventTouchUpInside];
  [timeButton setTitle:@"Time to next destination" forState:UIControlStateNormal];
  [timeButton setBackgroundColor:[UIColor blueColor]];
  [timeButton setAlpha:0.5];
  timeButton.frame = CGRectMake(5.0, 190.0, 200.0, 35.0);
  [_mapView addSubview:timeButton];

  // Get the distance to the next destination.
  UIButton *distanceButton = [UIButton buttonWithType:UIButtonTypeCustom];
  [distanceButton addTarget:self
                  action:@selector(getDistanceToNextDestination)
        forControlEvents:UIControlEventTouchUpInside];
  [distanceButton setTitle:@"Distance to next destination" forState:UIControlStateNormal];
  [distanceButton setBackgroundColor:[UIColor blueColor]];
  [distanceButton setAlpha:0.5];
  distanceButton.frame = CGRectMake(5.0, 230.0, 200.0, 35.0);
  [_mapView addSubview:distanceButton];

  // Get the current route leg.
  UIButton *routeButton = [UIButton buttonWithType:UIButtonTypeCustom];
  [routeButton addTarget:self
                  action:@selector(getCurrentRouteLeg)
        forControlEvents:UIControlEventTouchUpInside];
  [routeButton setTitle:@"Get current route leg" forState:UIControlStateNormal];
  [routeButton setBackgroundColor:[UIColor blueColor]];
  [routeButton setAlpha:0.5];
  routeButton.frame = CGRectMake(5.0, 270.0, 200.0, 35.0);
  [_mapView addSubview:routeButton];

  // Get the most recently traveled path.
  UIButton *pathButton = [UIButton buttonWithType:UIButtonTypeCustom];
  [pathButton addTarget:self
                 action:@selector(getTraveledPath)
       forControlEvents:UIControlEventTouchUpInside];
  [pathButton setTitle:@"Get current route leg" forState:UIControlStateNormal];
  [pathButton setBackgroundColor:[UIColor blueColor]];
  [pathButton setAlpha:0.5];
  pathButton.frame = CGRectMake(5.0, 310.0, 200.0, 35.0);
  [_mapView addSubview:pathButton];
}


@end

अगली मंज़िल पर पहुंचने में लगने वाला समय लोड हो रहा है

अगली मंज़िल का समय जानने के लिए, timeToNextDestination() पर कॉल करें. यह NSTimeInterval वैल्यू दिखाता है. इस उदाहरण में दिखाया गया है कि अगले डेस्टिनेशन पर जाने में कितना समय लगेगा:

Swift

if let navigator = mapView.navigator {
  let time = navigator.timeToNextDestination
  let minutes = floor(time/60)
  let seconds = round(time - minutes * 60)
  NSLog("Time to next destination: %.0f:%.0f", minutes, seconds)
}

Objective-C

NSTimeInterval time = _mapView.navigator.timeToNextDestination;
int minutes = floor(time/60);
int seconds = round(time - minutes * 60);
NSLog(@"%@", [NSString stringWithFormat:@"Time to next destination: %i:%i.", minutes, seconds]);

अगली मंज़िल की दूरी लोड की जा रही है

अगली मंज़िल की दूरी जानने के लिए, distanceToNextDestination() पर कॉल करें. यह CLLocationDistance वैल्यू दिखाता है. इकाइयां मीटर में दी गई हैं.

Swift

if let navigator = mapView.navigator {
  let distance = navigator.distanceToNextDestination
  let miles = distance * 0.00062137
  NSLog("Distance to next destination: %.2f miles.", miles)
}

Objective-C

CLLocationDistance distance = _mapView.navigator.distanceToNextDestination;
double miles = distance * 0.00062137;
NSLog(@"%@", [NSString stringWithFormat:@"Distance to next destination: %.2f.", miles]);

अगली मंज़िल के लिए ट्रैफ़िक का हाल जाना जा रहा है

अगले डेस्टिनेशन के ट्रैफ़िक के फ़्लो को दिखाने वाली वैल्यू पाने के लिए, delayCategoryToNextDestination पर कॉल करें. यह पैरामीटर GMSNavigationDelayCategory दिखाता है. यहां दिए गए उदाहरण में, नतीजे का आकलन करने और ट्रैफ़िक मैसेज को लॉग करने का तरीका बताया गया है:

Swift

if let navigator = mapView.navigator {
  // insert sample for evaluating traffic value
  let delay = navigator.delayCategoryToNextDestination
  let traffic = "unavailable"
  switch delay {
    case .noData:
      traffic = "unavailable"
    case .heavy:
      traffic = "heavy"
    case .medium:
      traffic = "moderate"
    case .light:
      traffic = "light"
    default:
      traffic = "unavailable"
  }
  print("Traffic is \(traffic).")
}

Objective-C

GMSNavigationDelayCategory delay = mapView.navigator.delayCategoryToNextDestination;
NSString *traffic = @"";

switch (delayCategory) {
    case GMSNavigationDelayCategoryNoData:
      traffic = @"No Data";
      break;
    case GMSNavigationDelayCategoryHeavy:
      traffic = @"Heavy";
      break;
    case GMSNavigationDelayCategoryMedium:
      traffic = @"Medium";
      break;
    case GMSNavigationDelayCategoryLight:
      traffic = @"Light";
      break;
    default:
      NSLog(@"Invalid delay category: %zd", delayCategory);
 }

NSLog(@"%@", [NSString stringWithFormat:@"Traffic is %@.", traffic]);

मौजूदा पैर के बारे में जानकारी ली जा रही है

रास्ते की मौजूदा मंज़िल के बारे में जानकारी पाने के लिए, currentRouteLeg पर कॉल करें. यह एक GMSRouteLeg इंस्टेंस लौटाता है, जिससे आपको यह जानकारी मिल सकती है:

• टांग के लिए मंज़िल.
• पैर में आखिरी कोऑर्डिनेट.
• वह पथ जिसमें निर्देशांक होते हैं और जिनसे रूट लेग बनता है.

नीचे दिए गए उदाहरण में, अगले रास्ते के लिए टाइटल और अक्षांश/देशांतर निर्देशांक लॉग करने के बारे में बताया गया है:

Swift

if let navigator = mapView.navigator {
  let currentLeg = navigator.currentRouteLeg
  let nextDestination = currentLeg?.destinationWaypoint?.title
  let lat = currentLeg?.destinationCoordinate.latitude.description
  let lng = currentLeg?.destinationCoordinate.longitude.description
  NSLog(nextDestination! + ", " + lat! + "/" + lng!)
}

Objective-C

GMSRouteLeg *currentSegment = _mapView.navigator.currentRouteLeg;
NSString *nextDestination = currentSegment.destinationWaypoint.title;
CLLocationDegrees lat = currentSegment.destinationCoordinate.latitude;
CLLocationDegrees lng = currentSegment.destinationCoordinate.longitude;
NSLog(@"%@", [NSString stringWithFormat:@"%@, %f/%f", nextDestination, lat, lng]);

सबसे हाल में तय किया गया रास्ता पाना

हाल ही में तय की गई यात्रा का रास्ता पाने के लिए, traveledPath पर कॉल करें. इससे एक GMSPath इंस्टेंस दिखता है, जिसे ग़ैर-ज़रूरी पॉइंट को हटाने के लिए आसान बनाया गया है. उदाहरण के लिए, लगातार आने वाले कोलीनियर पॉइंट को एक लाइन सेगमेंट में बदलना. दिशा-निर्देश शुरू होने तक, यह पाथ खाली रहेगा. नीचे दिए गए उदाहरण में, सबसे हाल में की गई यात्रा के लिए सबसे सही रास्ते की जानकारी दी गई है:

Swift

if let navigator = mapView.navigator {
  let latestPath = navigator.traveledPath
  if latestPath.count() > 0 {
    let begin: CLLocationCoordinate2D = latestPath.coordinate(at: 0)
    let current: CLLocationCoordinate2D = latestPath.coordinate(at: latestPath.count() - 1)
    print("Path from (\(begin.latitude),\(begin.longitude)) to (\(current.latitude),\(current.longitude))")
  }
}

Objective-C

GMSPath *latestPath = mapView.navigator.traveledPath;
if (latestPath.count > 0) {
  CLLocationCoordinate2D begin = [latestPath coordinateAtIndex:0];
  CLLocationCoordinate2D current = [latestPath coordinateAtIndex:latestPath.count - 1];
  NSLog(@"Path from %f/%f to %f/%f",
        begin.latitude,
        begin.longitude,
        current.latitude,
        current.longitude);
}