Question

I have a UIWebView with a link as follows:

<a href="maps:saddr=Current Location&amp;daddr=Some place on Earth@38.043316,-120.397757">Get Directions</a>

Within Safari Mobile this link works just fine and opens the Map app with current location to lat/lon directions, but inside of my iPhone app in a UIWebView it results in this error:

didFailLoadWithError:Error Domain=WebKitErrorDomain Code=101 "The URL can't be shown"

I have added the following code to my shouldStartLoadWithRequest which checks for non-standard schemes and tries to launch it using the internal app:

if (![url.scheme isEqual:@"http"] && ![url.scheme isEqual:@"https"] ) {
     if ([[UIApplication sharedApplication]canOpenURL:url]){
          [[UIApplication sharedApplication]openURL:url];
          return NO;
     }
}
return YES;

What could I be doing wrong? This used to work in prior iOS versions.

Answer 1

The correct URL no longer starts with “maps”. Instead use “http”. You also need to specify the google servers.

Here is a link to the relevant docs: Map Links

In your case it would look something like this:

http://maps.google.com/maps?saddr=Current Location?daddr=Some place on Earth@38.043316,-120.397757

Please note that this code is not tested as I am not near my development machine right now.