Question

我需要根据应用中的给定纬度/经度显示日期和时间。我使用Google API来获取时区ID，但它也应该脱机工作。有没有办法在没有连接互联网的情况下获得时区？

Answer 1

试试这个：

CLLocation *location = [[CLLocation alloc] initWithLatitude:50.449846
                                                  longitude:30.523629];

NSTimeZone *timeZone = [[APTimeZones sharedInstance] timeZoneWithLocation:location];
NSLog(@"%@", timeZone);

在此处查找图书馆：https://github.com/Alterplay/APTimeZones

您也可以通过代码（由https://stackoverflow.com/a/27054583/3202193回答）来执行此操作：

CLLocation *currentLocaiton = [[CLLocation alloc] initWithLatitude:latitude longitude:longitude];

[geoCoder reverseGeocodeLocation:currentLocaiton completionHandler:^(NSArray *placemarks, NSError *error) {

    if (error == nil && [placemarks count] > 0) {

        placeMark = [placemarks lastObject];
         NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"identifier = \"[a-z]*\\/[a-z]*_*[a-z]*\"" options:NSRegularExpressionCaseInsensitive error:NULL];
        NSTextCheckingResult *newSearchString = [regex firstMatchInString:[placeMark description] options:0 range:NSMakeRange(0, [placeMark.description length])];
        NSString *substr = [placeMark.description substringWithRange:newSearchString.range];
        NSLog(@"timezone id %@",substr); 

    }

如何按纬度和经度获取时区

1 个答案: