GOTimeZone is a lightweight wrapper around the Google Timezone API, allowing to get a suitable NSTimeZone for a CLLocation object.
GOTimeZone follows similar pattern to CLGeocoder, simply create an instance and request a timezone for a location.
CLLocation *location = ...
GOTimeZone *timezone = [[GOTimeZone alloc] init];
[timezone requestTimezoneForLocation:location
completionHandler:^(NSTimeZone *timezone, NSError *error) {
// Do something with the found timezone
}];The Google Timezone API, allows requests to be both anonymous and identified by a Google API key. GOTimeZone by default uses anonymous requests, but an API key can be specified per instance. A default API key can also be defined for automatic use by the instances.
// Assuming timezone is a GOTimeZone instance and apiKey is an NSString containing the key
[timezone setGoogleAPIKey:apiKey];
// Setting the default key to be used by all the instances
[GOTimeZone setDefaultGoogleAPIKey:apiKey];GOTimeZone uses NSProgress to report the progress of its network request, it also supports cancellation, but not pausing. NSProgress cancellation is handled as if -cancelRequest had been called.
The network traffic is mostly minimal, but due to latency the process may take a while, thus progress reporting was added.
Simply add the files in the GOTimeZone folder to your project (GOTimeZone.{h,m}).
GOTimeZone works on both OS X and iOS, requiring OS X 10.9 and iOS 7 respectively.
Each GOTimeZone instance can handle at most one request at a time, again following a similar pattern from CLGeocoder. Thus in order to start a new request the previous one should be cancelled via -cancelRequest method. Keep in mind that cancelling might take a moment and that the completion handler of the previous call will get invoked no matter what.
Henri Normak
GOTimeZone is licensed under the MIT license, see LICENSE file for more info.