如何使用我的ios应用程序中的指示打开Apple地图应用程序

我的目的是从ios应用程序打开地图应用程序和方向，我能够打开地图应用程序，但它没有显示方向，我编写了如下代码

NSString *mystr=[[NSString alloc] initWithFormat:@"http://maps.apple.com/maps?saddr=Current+Location&daddr=Newyork"]; NSURL *myurl=[[NSURL alloc] initWithString:mystr]; [[UIApplication sharedApplication] openURL:myurl]; 

任何人都可以帮我解释如何将参数传递给这个url和其他任何一个？

Answer 1

如果您的意思是根据两点将用户带到地图应用程序，那么您可以这样做：

创建一个如下所示的NSURL：

 NSURL *URL = [NSURL URLWithString:@"http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f"]; 

您可以适当地插入起始地址和目的地（lat。和long。）。 告诉您的应用程序打开URL

 [[UIApplication sharedApplication] openURL:URL]; 

它应该自动带你到地图应用程序！

Answer 2

 CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(self.location.latitude,self.location.longitude); //create MKMapItem out of coordinates MKPlacemark* placeMark = [[MKPlacemark alloc] initWithCoordinate:coordinate addressDictionary:nil]; MKMapItem* destination = [[MKMapItem alloc] initWithPlacemark:placeMark]; if([destination respondsToSelector:@selector(openInMapsWithLaunchOptions:)]) { //using iOS6 native maps app if(_mode == 1) { [destination openInMapsWithLaunchOptions:@{MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeWalking}]; } if(_mode == 2) { [destination openInMapsWithLaunchOptions:@{MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeDriving}]; } if(_mode == 3) { [destination openInMapsWithLaunchOptions:@{MKLaunchOptionsDirectionsModeKey:MKLaunchOptionsDirectionsModeTransit}]; } } else{ //using iOS 5 which has the Google Maps application NSString* url = [NSString stringWithFormat: @"http://maps.google.com/maps?saddr=Current+Location&daddr=%f,%f", self.location.latitude, self.location.longitude]; [[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]]; }