Question

我可以在地图上显示多个位置或注释引脚。当用户点击它时，我会弹出一个带标题的弹出窗口。如何让用户在点击“＆gt;”时获取路线弹出窗口上的按钮

Answer 1

你需要做两件事： 1.从地图引脚获取位置 2.打开Google地图网址。

以下是它的工作原理（其中一些来自here）

CLLocationCoordinate2D start = myMapView.userLocation.location.coordinate;
CLLocationCoordinate2D destination = [pinSelected.annotation coordinate];        

NSString *googleMapsURLString = [NSString stringWithFormat:@"http://maps.google.com/?saddr=%1.6f,%1.6f&daddr=%1.6f,%1.6f",
                                                                     start.latitude, start.longitude, destination.latitude, destination.longitude];

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

Answer 2

代码在iOS 5.x和iOS 6.x上表现不同。假设注释是“toAnnotation”，下面的代码将起作用：

- (void)openMap
{
    Class itemClass = [MKMapItem class];
    if (itemClass && [itemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)]) { // iOS 6.x and later
        MKMapItem *currentLocation = [MKMapItem mapItemForCurrentLocation];
        MKMapItem *toLocation = [[MKMapItem alloc]
                                 initWithPlacemark:[[MKPlacemark alloc]
                                                    initWithCoordinate:CLLocationCoordinate2DMake(toAnnotation.coordinate.latitude, toAnnotation.coordinate.longitude)
                                                    addressDictionary:nil]];
        toLocation.name = toAnnotation.title;
        [MKMapItem openMapsWithItems:[NSArray arrayWithObjects:currentLocation, toLocation, nil]
                       launchOptions:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:MKLaunchOptionsDirectionsModeDriving, [NSNumber numberWithBool:YES], nil]
                                                                 forKeys:[NSArray arrayWithObjects:MKLaunchOptionsDirectionsModeKey, MKLaunchOptionsShowsTrafficKey, nil]]];
    } else { // iOS 5.1 and earlier
        NSMutableString *mapURL = [NSMutableString stringWithString:@"http://maps.google.com/maps?"];
        [mapURL appendFormat:@"saddr=Current Location"];
        [mapURL appendFormat:@"&daddr=%f,%f", toAnnotation.coordinate.latitude, toAnnotation.coordinate.longitude];
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[mapURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]];
    }
}

Answer 3

首先你需要在视图中查看controller.h文件

- (IBAction)startWithOnePlacemark:(id)sender;
- (IBAction)startWithMultiplePlacemarks:(id)sender;
- (IBAction)startInDirectionsMode:(id)sender;

然后在Viewcontroller.m

- (IBAction)startWithOnePlacemark:(id)sender
{
CLLocationCoordinate2D bigBenLocation = CLLocationCoordinate2DMake(51.50065200, -0.12483300);
MKPlacemark *bigBenPlacemark = [[MKPlacemark alloc] initWithCoordinate:bigBenLocation addressDictionary:nil];
MKMapItem *bigBenItem = [[MKMapItem alloc] initWithPlacemark:bigBenPlacemark];
bigBenItem.name = @"Big Ben";

[bigBenItem openInMapsWithLaunchOptions:nil];

// Note: use initWithPlacemark: to initialize with CLPlacemark
}

- (IBAction)startWithMultiplePlacemarks:(id)sender
{
CLLocationCoordinate2D bigBenLocation = CLLocationCoordinate2DMake(51.50065200, -0.12483300);
MKPlacemark *bigBenPlacemark = [[MKPlacemark alloc] initWithCoordinate:bigBenLocation addressDictionary:nil];
MKMapItem *bigBenItem = [[MKMapItem alloc] initWithPlacemark:bigBenPlacemark];
bigBenItem.name = @"Big Ben";

CLLocationCoordinate2D westminsterLocation = CLLocationCoordinate2DMake(51.50054300, -0.13570200);
MKPlacemark *westminsterPlacemark = [[MKPlacemark alloc] initWithCoordinate:westminsterLocation addressDictionary:nil];
MKMapItem *westminsterItem = [[MKMapItem alloc] initWithPlacemark:westminsterPlacemark];
westminsterItem.name = @"Westminster Abbey";

NSArray *items = [[NSArray alloc] initWithObjects:bigBenItem, westminsterItem, nil];
[MKMapItem openMapsWithItems:items launchOptions:nil];
}

- (IBAction)startInDirectionsMode:(id)sender
{
CLLocationCoordinate2D bigBenLocation = CLLocationCoordinate2DMake(51.50065200, -0.12483300);
MKPlacemark *bigBenPlacemark = [[MKPlacemark alloc] initWithCoordinate:bigBenLocation addressDictionary:nil];
MKMapItem *bigBenItem = [[MKMapItem alloc] initWithPlacemark:bigBenPlacemark];
bigBenItem.name = @"Big Ben";

CLLocationCoordinate2D westminsterLocation = CLLocationCoordinate2DMake(51.50054300, -0.13570200);
MKPlacemark *westminsterPlacemark = [[MKPlacemark alloc] initWithCoordinate:westminsterLocation addressDictionary:nil];
MKMapItem *westminsterItem = [[MKMapItem alloc] initWithPlacemark:westminsterPlacemark];
westminsterItem.name = @"Westminster Abbey";

NSArray *items = [[NSArray alloc] initWithObjects:bigBenItem, westminsterItem, nil];
NSDictionary *options = @{MKLaunchOptionsDirectionsModeKey: MKLaunchOptionsDirectionsModeWalking};
[MKMapItem openMapsWithItems:items launchOptions:options];
}

添加Mapkit，AddressBook，CoreLocation Framework

如何在点击地图注释引脚时允许用户“获取路线”

3 个答案: