ios - iOS APIを介して現在のシーズンを見つける方法は?

Question

現在の場所の現在の季節 (春、夏、冬、秋) を見つけるために iOS にとにかくありますか?

世界のさまざまな地域では季節が異なります。同じ時期にアメリカの季節が別のものであるのに、オーストラリアでは別の季節を経験するかもしれません。

その場所の季節を返す天気APIまたは何か?

Answer 1

アプリケーションで現在のシーズンを知る必要があり、あなたの投稿を見ました。

だから、たとえそれが古い投稿であっても、私の答えと私のコードがあります.

ユーザーの座標を取得し、緯度を比較して、ユーザーが北半球 (緯度 0° から 90°) にいるか南半球 (緯度 0° から -90°) にいるかを判断します。その後、季節の日付を固定し、日付を現在の日付と比較します。

楽しんで ：

- (void)currentSeason
{
    NSCalendar* myCalendar = [NSCalendar currentCalendar];
    NSDateComponents* components = [myCalendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit
                                                 fromDate:[NSDate date]];
    components.hour = 12;

    // Current year
    NSInteger currentYear = components.year;

    // Today
    NSDate *today = [NSDate date];

    // First Day of the year
    components.month = 1;
    components.day = 1;
    components.year = currentYear;
    NSDate *firstDayDate = [myCalendar dateFromComponents:components];

    // Spring Date
    components.month = 3;
    components.day = 21;
    components.year = currentYear;
    NSDate *springDate = [myCalendar dateFromComponents:components];

    // Summer Date
    components.month = 6;
    components.day = 21;
    components.year = currentYear;
    NSDate *summerDate = [myCalendar dateFromComponents:components];

    // Autumn Date
    components.month = 9;
    components.day = 23;
    components.year = currentYear;
    NSDate *autumnDate = [myCalendar dateFromComponents:components];

    // Winter Date
    components.month = 12;
    components.day = 22;
    components.year = currentYear;
    NSDate *winterDate = [myCalendar dateFromComponents:components];

    // Last Day of the year
    components.month = 12;
    components.day = 31;
    components.year = currentYear;
    NSDate *lastDayDate = [myCalendar dateFromComponents:components];

    // Current Location
    CLLocationManager *locationManager = [[CLLocationManager alloc] init];
    locationManager.delegate = self;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    locationManager.distanceFilter = kCLDistanceFilterNone;
    [locationManager startUpdatingLocation];
    CLLocation *location = [locationManager location];
    CLLocationCoordinate2D coord = [location coordinate];

    // North Hemisphere
    if (coord.latitude > 0)
    {
        NSLog(@"North Pole");

        // Settings the background image
        if ([self isDate:today inRangeFirstDate:firstDayDate lastDate:springDate] || [self isDate:today inRangeFirstDate:winterDate lastDate:lastDayDate])
        {
            NSLog(@"Winter");
        }
        else if ([self isDate:today inRangeFirstDate:springDate lastDate:summerDate])
        {
            NSLog(@"Spring");
        }
        else if ([self isDate:today inRangeFirstDate:summerDate lastDate:autumnDate])
        {
            NSLog(@"Summer");
        }
        else if ([self isDate:today inRangeFirstDate:autumnDate lastDate:winterDate])
        {
            NSLog(@"Autumn");
        }
    }
    else
    {
        NSLog(@"South Pole");

        // Settings the background image
        if ([self isDate:today inRangeFirstDate:firstDayDate lastDate:springDate] || [self isDate:today inRangeFirstDate:winterDate lastDate:lastDayDate])
        {
            NSLog(@"Summer");
        }
        else if ([self isDate:today inRangeFirstDate:springDate lastDate:summerDate])
        {
            NSLog(@"Autumn");
        }
        else if ([self isDate:today inRangeFirstDate:summerDate lastDate:autumnDate])
        {
            NSLog(@"Winter");
        }
        else if ([self isDate:today inRangeFirstDate:autumnDate lastDate:winterDate])
        {
           NSLog(@"Spring");
        }
    }
}

- (BOOL)isDate:(NSDate *)date inRangeFirstDate:(NSDate *)firstDate lastDate:(NSDate *)lastDate
{
    return ([date compare:firstDate] == NSOrderedDescending) && ([date compare:lastDate] == NSOrderedAscending);
}

Answer 2

まず、ユーザーの現在地の座標を取得します。

CLLocationManager *lm = [[CLLocationManager alloc] init];
lm.delegate = self;
lm.desiredAccuracy = kCLLocationAccuracyBest;
lm.distanceFilter = kCLDistanceFilterNone; 
[lm startUpdatingLocation];
CLLocation *location = [lm location];
CLLocationCoordinate2D coord;
coord = [location coordinate];

次に、現在の日付を取得します。

NSDate* currentDate = [NSDate date];

必要なのはそれだけだと思います。ユーザーが赤道の上か下かを判断し、季節の変化の日付を定数として保存します。