通过在iphone中给出位置名称来获取坐标

CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder geocodeAddressString:YOUR_LOCATION completionHandler:^(NSArray* placemarks, NSError* error)     
{
    NSLog(@\"completed\");
    if ( error )
    {
        NSLog(@\"error = %@\", error );
    }
    else
    {
        //Here you get information about the place in placemarks array
    }
}];

-(CLLocationCoordinate2D) addressLocation:(NSString *)addrss {
    NSString *urlString = [NSString stringWithFormat:@\"http://maps.google.com/maps/geo?q=%@&output=csv\", 
                           [addrss stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
    NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString]];
    NSArray *listItems = [locationString componentsSeparatedByString:@\",\"];

double latitude = 0.0;
double longitude = 0.0;

if([listItems count] >= 4 && [[listItems objectAtIndex:0] isEqualToString:@\"200\"]) {
    latitude = [[listItems objectAtIndex:2] doubleValue];
    longitude = [[listItems objectAtIndex:3] doubleValue];
}
else {
    //Show error
}
CLLocationCoordinate2D location;
location.latitude = latitude;
location.longitude = longitude;

return location;