Google Maps link for iOS - iphone

Question

I want to have a link to a Google Map on our company mobile website. The problem is, if I make a link, it takes you to the Google Maps website. It needs to open up the app.
I have found out that if you start the url with "comgooglemaps://" it will open google maps. However, this poses the problem that if a iOS user does not have Google Maps installed the link will not work.
Is there a way to open Google Maps if it is installed, but open the browser if not (I don't believe you can open Apple Maps from a website due to the nature of their API)
Thanks
EDIT: Just a heads up, this is being done on a website, not an app. So it needs to be done through HTML, Javascript, PHP etc. NOT a programing language.

Answer 1

Have a look at the Apple Maps Links page.
Basically you link to maps.apple.com and it redirects to Google Maps if needed. Here's an example from the page:
http://maps.apple.com/?daddr=San+Francisco,+CA&saddr=cupertino
With latitude, longitude and zoom:
http://maps.apple.com/?ll=53.01,6.01&z=15

Answer 2

Check this Link
You can use this method with url scheme for google map app. (comgooglemaps://blahblah)
[[UIApplication sharedApplication] canOpenURL:(NSURL*)foo]
It will return BOOL value.

Answer 3

Try this to move google map and set route
NSString* addr = nil;
addr = [NSString stringWithFormat:#"http://maps.google.com/maps?daddr=%1.6f,%1.6f&saddr=Posizione attuale", destinationLat,destinationLong];
NSURL* url = [[NSURL alloc] initWithString:[addr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
[[UIApplication sharedApplication] openURL:url];

Answer 4

Try this code
if ([[UIApplication sharedApplication] canOpenURL:
[NSURL URLWithString:#"comgooglemaps://"]]) {
NSString * url = [NSString stringWithFormat:#"%#%#,%#",#"http://maps.google.com/maps?q=",#"75.14524",#"12.1521"];
[[UIApplication sharedApplication] openURL:
[NSURL URLWithString:url]];
}