地标没有给出邮政编码来查找天气信息

Question

我想从当前位置了解天气。

为此，我将代码用作

-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    [self.locationManager stopUpdatingLocation];
    self.location = newLocation;
//    NSLog(@"lat long = %f,%f",self.location.coordinate.latitude,self.location.coordinate.longitude);
    // Geocode coordinate (normally we'd use location.coordinate here instead of coord).
    // This will get us something we can query Google's Weather API with
    if (boolCurrentlyWorking == NO) {
        CLGeocoder* reverseGeocoder = [[CLGeocoder alloc] init];
        if(reverseGeocoder)
        {
            [reverseGeocoder reverseGeocodeLocation:newLocation completionHandler:^(NSArray *placemarks, NSError *error) {
                CLPlacemark* placemark = [placemarks objectAtIndex:0];
                if (placemark) {
                    //Using blocks, get zip code
                    NSString *zipCode = [placemark.addressDictionary objectForKey:(NSString*)kABPersonAddressZIPKey];
                    NSLog(@"placemark : %@ zipcode : %@",placemark.addressDictionary,zipCode);
                }
            }];
        }else{
            MKReverseGeocoder *geocoder = [[MKReverseGeocoder alloc] initWithCoordinate:self.location.coordinate];
            geocoder.delegate = self;
            [geocoder start];
        }
     }
    boolCurrentlyWorking = YES;
}

我在这里没有邮政编码。

还发现这种 didupdate 位置方法已被弃用，新方法是

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    CLLocation *location = [locations lastObject];
    CLLocation *newlocation = location;
    NSLog(@"location : %@",location);
    CLGeocoder* reverseGeocoder = [[CLGeocoder alloc] init];
    if(reverseGeocoder)
    {
        [reverseGeocoder reverseGeocodeLocation:newlocation completionHandler:^(NSArray *placemarks, NSError *error) {
            for(CLPlacemark *placemark in placemarks)
            {
                NSLog(@"plcaemark desc : %@",[placemark description]);
            }
        }];
    }
}

但它也不包含邮政编码。

我得到了这个描述

{
    Country = India;
    CountryCode = IN;
    FormattedAddressLines =     (
        NH8C,
        Gujarat,
        India
    );
    Name = NH8C;
    State = Gujarat;
    Street = NH8C;
    Thoroughfare = NH8C;
}

有没有像它不提供邮政编码信息，我们必须构建它？如果是，那又如何呢？

Answer 1

首先，我们没有获得印度的任何邮政编码。

谷歌API也已经停止工作。

我使用yahoo api来查找天气。

这是可能对某人有帮助的代码

-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    [self.locationManager stopUpdatingLocation];
    self.location = newLocation;

        NSString *linkForWoeid = [NSString stringWithFormat:@" http://where.yahooapis.com/geocode?location=%f,%f&flags=J&gflags=R&appid=zHgnBS4m",self.location.coordinate.latitude,self.location.coordinate.longitude];
        NSURL *woeidURL = [NSURL URLWithString:linkForWoeid];
        NSData *WoeidData = [NSData dataWithContentsOfURL:woeidURL];
        if (WoeidData != NULL)
        {
            NSError *woeiderr = nil;
            NSDictionary *aDicWOEIDResp = [NSJSONSerialization JSONObjectWithData:WoeidData options:NSJSONReadingMutableContainers error:&woeiderr];
            NSDictionary *aDictWOEID = [[[[aDicWOEIDResp objectForKey:@"ResultSet"]objectForKey:@"Results"]objectAtIndex:0]objectForKey:@"woeid"];
            NSString *address=[NSString stringWithFormat:@"http://weather.yahooapis.com/forecastrss?w=%@",aDictWOEID];
            ICB_WeatherConditions *icbWeather = [[ICB_WeatherConditions alloc] initWithQuery:address];
}
#import "ICB_WeatherConditions.m"
- (ICB_WeatherConditions *)initWithQuery:(NSString *)query
{
    if (self = [super init])
    {
        NSURL *url = [NSURL URLWithString:query];
        CXMLDocument *parser = [[[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil] autorelease];
        NSDictionary *namespaceMedia = [NSDictionary dictionaryWithObject:@"http://xml.weather.yahoo.com/ns/rss/1.0" forKey:@"yweather"];
        NSArray *nodes = [parser nodesForXPath:@"//channel" error:nil];
        for (CXMLNode *node in nodes) {
            if ([node kind] == CXMLElementKind)
            {
                CXMLElement *element = (CXMLElement *)node;
                for(int i=0;i<[element childCount];i++)
                {
                    NSString *strKey = [[element childAtIndex:i] name];
                    if([strKey isEqual:@"location"])
                    {
                        location = [self stringForXPath:@"@city" ofNode:[element childAtIndex:i] withNameSpace:namespaceMedia];
                    }
                    else if([strKey isEqual:@"item"])
                    {
                        NSArray *nodeItem = [element nodesForXPath:@"//item" error:nil];
                        CXMLElement *elementItem = [nodeItem objectAtIndex:0];
                        for(int j=0;j<[elementItem childCount];j++){
                            NSString *strKeyItem = [[elementItem childAtIndex:j] name];
                            if([strKeyItem isEqual:@"condition"]){
                                condition =[self stringForXPath:@"@text" ofNode:[elementItem childAtIndex:j] withNameSpace:namespaceMedia];
                                currentTemp = [[self stringForXPath:@"@temp" ofNode:[elementItem childAtIndex:j] withNameSpace:namespaceMedia] intValue];
                            }
                            else if([strKeyItem isEqual:@"forecast"])
                            {
                                NSString *date = [self stringForXPath:@"@date" ofNode:[elementItem childAtIndex:j] withNameSpace:namespaceMedia];
                                NSDate *curDate = [NSDate date];
                                NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
                                dateFormatter.dateFormat = @"dd MMM yyyy";
                                NSString *strCurDate = [dateFormatter stringFromDate:curDate];
                                if([date isEqual:strCurDate])
                                {
                                    highTemp = [[self stringForXPath:@"@high" ofNode:[elementItem childAtIndex:j] withNameSpace:namespaceMedia] intValue];
                                    lowTemp = [[self stringForXPath:@"@low" ofNode:[elementItem childAtIndex:j] withNameSpace:namespaceMedia] intValue];
                                }
                            }
                        }
                    }
                    else
                        continue;
                }
            }
      }
    }
    return self;
}

这就是我获得天气详细信息的方式。就我而言，我只需要位置，条件，高温，低温，当前温度。