I am building an app that can open the Maps app with directions from the user's current position to another position. The code looks like this:
- (id)resolveDirectionsFromCoordinate:(CLLocationCoordinate2D)startCoordinate toCoordinate:(CLLocationCoordinate2D)endCoordinate
{
NSString* url = [NSString stringWithFormat: @"http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f",
startCoordinate.latitude, startCoordinate.longitude,
endCoordinate.latitude, endCoordinate.longitude];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]];
return nil;
}
Thos works well in iOS 5.x. In iOS 6, however, this brings up Safari instead, since Maps no longer uses Google Maps.
Does anyone know which URL I should call in iOS 6?
The Apple Documentation recommends using the equivalent maps.apple.com URL Scheme
so use
http://maps.apple.com/maps?saddr=%f,%f&daddr=%f,%f
instead of
http://maps.google.com/maps?saddr=%f,%f&daddr=%f,%f
to be backwards compatible your code would be
NSString* versionNum = [[UIDevice currentDevice] systemVersion];
NSString *nativeMapScheme = @"maps.apple.com";
if ([versionNum compare:@"6.0" options:NSNumericSearch] == NSOrderedAscending){
nativeMapScheme = @"maps.google.com";
}
NSString* url = [NSString stringWithFormat: @"http://%@/maps?saddr=%f,%f&daddr=%f,%f", nativeMapScheme startCoordinate.latitude, startCoordinate.longitude,
endCoordinate.latitude, endCoordinate.longitude];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
Alternatively you could also use the maps://saddr=%f,%f&daddr=%f,%f
scheme but it does not appear support the full range of parameters.