Objective-C日出和日落图书馆？

Question

是否有一个Objective-C（或C）库（与核心位置兼容）可以告诉我任何给定日历日的日出和日落时间？

Answer 1

EDSunriseSet is an open source and free Objective-C wrapper for the C languages routines created by Paul Schlyter .

Calculation is done entirely by the C-code routines. EDSunrisetSet bridges those calculations to common Cocoa classes (NSDate, NSTimeZone, ...)

Answer 2

I've actually ported the KosherJava Library and plan to make it available soon on GitHub!

Edit:

KosherCocoa is now live on GitHub! If you don't need the hebrew calendar related code, you can delete the "calendar" file. The class files are separated nicely into folders based on the kinds of calculations that they do.

Edit: KosherCocoa us due to be replaced with a modern and more complete update as soon as I can. The above link now points at a legacy repo.

Answer 3

I have used a library called SUNWAIT . Very simple, effective - easy to use!

Answer 4

Try this: https://github.com/mourner/suncalc/

Very clear and easy to implement, although it writen by javascript but it is easy to convert it to
objective-C

It also support for calculate sun, moon position and coordinate.

Answer 5

在找不到简单的Swift替代品之后，我创建了Solar ：一个Swift构建的日出/日落微库。

Answer 6

Just a note.. if you use the Berkley one... well it doesn't work (in Australia as least). It does include the Paul Schlyter C code though, which is great.

If you want it to work anywhere, best to just calc the dates in UTC.

In SunriseAndSunset.m, replace the code from double rise; double set; as follows:

sun_rise_set(theYear, theMonth, theDay, lon, lat, &rise, &set);
int hours = HOURS(rise);
int mins = MINUTES(rise);
int sethrs = HOURS(set);
int setmins = MINUTES(set);

NSTimeInterval riseOffset = ((hours * 60) + mins) * 60;
NSTimeInterval setOffset = ((sethrs * 60) + setmins) * 60;

[formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
NSString *dateStr = [NSString stringWithFormat:@"%i-%02d-%02dT00:00:00+0000", theYear, theMonth, theDay];
NSDate *utcMidnight = [formatter dateFromString:dateStr];

NSDate *utcSunrise = [utcMidnight dateByAddingTimeInterval:riseOffset];
NSDate *utcSunset = [utcMidnight dateByAddingTimeInterval:setOffset];

[formatter release];
[gregorian release];

return [NSDictionary dictionaryWithObjectsAndKeys:utcSunrise, @"sunrise", utcSunset, @"sunset", nil];

Answer 7

试试这个： https ： //github.com/berkley/ObjectiveCUtil