Iphone 显示从当前位置到移动车辆目的地的路线

我尝试使用谷歌地图显示从当前位置到目的地的路线，但我想显示从移动对象到当前位置的路线？

我希望您能找到一种方法，通过以下URL实现您的功能

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使用类似于

• （MKAnnotationView*）地图视图：（MKMapView*）地图视图注释：（id）注释{
  if（[annotation isKindOfClass:[NVPolylineAnnotation class]]）{
  }
  返回零； }

• （void）地图视图：（MKMapView*）地图视图添加注释视图：（NSArray*）视图{
  //修复了某些标记位于多段线后面的问题 如果（[Appdelegate.CrashUserArray计数]>0） {
  对于（int i=0；i<[Appdelegate.CrashUserArray计数]；i++） {
  } } -（void）mapView:（MKMapView*）aMapView didUpdateUserLocation:（MKUserLocation*）aUserLocation{
  协调区域； Mk坐标跨度； span.latitudeDelta=0.005； span.longitudeDelta=0.005
  oldlocation.latitude=aUserLocation.coordinate.latitude； oldlocation.longitude=aUserLocation.coordinate.longitude； region.span=span； region.center=旧位置
  NSArray*点=[NSArray arrayWithObjects: [[CLLocation alloc]INITWITH纬度：45.43894经度：-73.7396]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44628经度：-73.74119]自动释放]， [[CLLocation alloc]initWithLatitude:45.44649经度：-73.741069999999]自动释放]， [[CLLocation alloc]initWithLatitude:45.44665999999经度：-73.7409]自动释放]， [[CLLocation alloc]initWithLatitude:45.44665999999经度：-73.7409]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44676经度：-73.74073]自动释放]， [[CLLocation alloc]initWithLatitude:45.4470799999999经度：-73.7399000000001]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44748经度：-73.73856000000001]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44748经度：-73.73856000000001]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44834经度：-73.73581]自动释放]， [[[CLLocation alloc]initWithLatitude:45.448579999999经度：-73.7347599999999]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44863000000001经度：-73.734170000001]自动释放]， [[[CLLocation alloc]INITWITH纬度：45.44863000000001经度：-73.73300999999]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44795经度：-73.7008]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44784经度：-73.69398]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44775经度：-73.690900000001]自动释放]， [[CLLocation alloc]INITWITH纬度：45.447439999999经度：-73.68584]自动释放]， [[CLLocation alloc]INITWITH纬度：45.44728经度：-73.6816599999999]自动释放]

                     [[[CLLocation alloc] initWithLatitude:45.48679000000001 longitude:-73.59443] autorelease],
                     nil];
  
  NVPolylineAnnotation *annotation = [[[NVPolylineAnnotation alloc] initWithPoints:points mapView:map] autorelease];
  
  
  [map addAnnotation:annotation];
  
  
  [loc release];
  [aMapView setRegion:region animated:YES];
  NSLog(@"uncomment this when you want to upload record");
  

  } }

用这种方法你们可以在地图上画出路径

for (int j = 0; j < [views count]; j++) {

    MKAnnotationView *view = [views objectAtIndex:j];

    if ([view isKindOfClass:[NVPolylineAnnotationView class]])

    {

        [[view superview] sendSubviewToBack:view];

        //view.image=[UIImage imageNamed:@"close_button.png"];

        NSString *reqSysVer = @"4.0";

        NSString *currSysVer = [[UIDevice currentDevice] systemVersion];

        if ([currSysVer compare:reqSysVer options:NSNumericSearch] != NSOrderedAscending)

        {

            [self updatePolylineAnnotationView];

        }

    }

    else {

        if ([[Appdelegate.CrashUserArray objectAtIndex:i] count] > 0) {

            nextviewbtn=[[UIButton alloc]init];

            nextviewbtn.frame=CGRectMake(10,10,13,22);

            [nextviewbtn addTarget:self action:@selector(OpenUser:) forControlEvents:UIControlEventTouchUpInside];

            nextviewbtn.tag=i;

            [nextviewbtn setBackgroundImage:[UIImage imageNamed:@"right_arrow.png"] forState:UIControlStateNormal];

            dispatch_async(dispatch_get_global_queue(0,0), ^{

                NSData * data = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: [[[Appdelegate.CrashUserArray objectAtIndex:i]objectAtIndex:0] objectForKey:@"userphoto_47"]]];

                if ( data == nil )

                    return;

                dispatch_async(dispatch_get_main_queue(), ^{



                    view.image = [UIImage imageWithData: data];

                    view.rightCalloutAccessoryView=nextviewbtn;

                });

                [data release];

            });

        }

    }

}

RegionAnnotationView *regionView = (RegionAnnotationView *)annotationView;

RegionAnnotation *regionAnnotation = (RegionAnnotation *)regionView.annotation;



if (newState == MKAnnotationViewDragStateStarting) {

    [regionView removeRadiusOverlay];

    [locationmanager stopMonitoringForRegion:regionAnnotation.region];

}

if (oldState == MKAnnotationViewDragStateDragging && newState == MKAnnotationViewDragStateEnding) {

    [regionView updateRadiusOverlay];

    NSUserDefaults *def=[NSUserDefaults standardUserDefaults];

    CLRegion *newRegion = [[CLRegion alloc] initCircularRegionWithCenter:regionAnnotation.coordinate radius:1000.0 identifier:[NSString stringWithFormat:@"%f, %f", [def floatForKey:@"currentlati"],[def floatForKey:@"currentlongi"]]];

    regionAnnotation.region = newRegion;

    // [locationmanager startMonitoringForRegion:regionAnnotation.region desiredAccuracy:kCLLocationAccuracyBest];
}

                   [[[CLLocation alloc] initWithLatitude:45.48679000000001 longitude:-73.59443] autorelease],
                   nil];

NVPolylineAnnotation *annotation = [[[NVPolylineAnnotation alloc] initWithPoints:points mapView:map] autorelease];


[map addAnnotation:annotation];


[loc release];
[aMapView setRegion:region animated:YES];
NSLog(@"uncomment this when you want to upload record");