如何在IOS 6中退出Map App，即将控制权返回到应用程序的请求方向? [英] How to exit from Map App in IOS 6 i.e. return control back to app requesting directions?

问题描述

用户点击方向"按钮后，我正在使用MKMapItem从我的应用程序中启动地图"应用程序. Map应用程序可以很好地显示从当前位置到地址的方向.但是，如果我不再希望查看路线，该如何返回我的应用程序?以下是我附在IBAction上的代码.

I am using MKMapItem to launch Map app from within my app after the user taps 'Directions' button. The Map app comes up fine showing directions from current location to a address. But how do I go back to my app, If I no longer want to see Directions? Below is my code attached to IBAction.

代码:

- (IBAction)pressDirectionsButton:(id)sender {

Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
    CLGeocoder *geocoder = [[CLGeocoder alloc] init];
    NSString *addressString = [NSString stringWithFormat:@"%@,%@,%@,%@,%@",
                               self.currentlySelectedTemple.houseNumber,
                               self.currentlySelectedTemple.street,
                               self.currentlySelectedTemple.city,
                               self.currentlySelectedTemple.state,
                               self.currentlySelectedTemple.country];
    [geocoder geocodeAddressString:addressString completionHandler:^(NSArray *placemarks, NSError *error) {

        //Convert CLPlacemark to an MKPlacemark
        CLPlacemark *geocodedPlacemark = [placemarks objectAtIndex:0];
        MKPlacemark *placemark = [[MKPlacemark alloc]
                                  initWithCoordinate:geocodedPlacemark.location.coordinate addressDictionary:geocodedPlacemark.addressDictionary];

        //Create a map item for geocoded address to pass to Maps app
        MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
        [mapItem setName:geocodedPlacemark.name];

        //Set Directions mode to Driving
        NSDictionary *launchOptions =    @{MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving};

        //Get the "Current User Locations" MKMapItem
        MKMapItem *currentLocationMapItem = [MKMapItem mapItemForCurrentLocation];

        //Pass the current location and destination  map items to Maps app
        [MKMapItem openMapsWithItems:@[currentLocationMapItem,  mapItem] launchOptions:launchOptions];

       }];
    }

    }

推荐答案

无法(以编程方式)返回到您的应用程序，因为您不再在应用程序中，而是在Maps应用程序中.执行openMapsWithItems:launchOptions:后，将调用您的App Delegate的applicationdDidEnterBackground:方法.

There is no way to go back to your app (programatically), as you are no longer in your app, but in the Maps app. After executing openMapsWithItems:launchOptions:, your App Delegate's applicationdDidEnterBackground: method is called.

当前无法使用Mapkit在应用程序中嵌入带有方向的地图.

Currently there is no way to use Mapkit to embed a map with directions within your app.

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