n.e*_*ind 8 iphone datetime cocoa-touch objective-c
一个初学者的问题,但我想知道是否有人可以帮我这个:
我需要根据包含特定日期的字符串设置四个字符串(例如@"2011年4月7日"):
@"Thu"@"7"@"April"@"2011"到目前为止,我发现了这个:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setTimeStyle:NSDateFormatterNoStyle];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
NSDate *date = [NSDate dateWithTimeIntervalSinceReferenceDate:118800];
NSLocale *usLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
[dateFormatter setLocale:usLocale];
NSLog(@"Date for locale %@: %@",
[[dateFormatter locale] localeIdentifier], [dateFormatter stringFromDate:date]);
// Output:
// Date for locale en_US: Jan 2, 2001
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所以这会给我一个特定的格式化日期.然而,我想知道如何访问这个日期的某些部分.有 - (NSArray*)weekdaySymbols但我不知道如何使用这个,文档非常节俭.
日历专家提供的任何提示都将非常受欢迎.
编辑:
我想这是解决方案的一部分:
NSLocale *gbLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_GB"];
NSString *gbFormatString = [NSDateFormatter dateFormatFromTemplate:@"EdMMM" options:0 locale:gbLocale];
NSLog(@"gbFormatterString: %@", gbFormatString);
// Output: gbFormatterString: EEE d MMM, e.g. Thu 7 Apr
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Jor*_*dan 25
没关系,
你需要这样的东西:
NSDate *date = [NSDate date];
NSDateFormatter *formatter = [[[NSDateFormatter alloc] init] autorelease];
[formatter setDateFormat:@"MMM dd, yyy"];
date = [formatter dateFromString:@"Apr 7, 2011"];
NSLog(@"%@", [formatter stringFromDate:date]);
NSCalendar *calendar = [NSCalendar currentCalendar];
NSInteger units = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSWeekdayCalendarUnit;
NSDateComponents *components = [calendar components:units fromDate:date];
NSInteger year = [components year];
NSInteger month=[components month]; // if necessary
NSInteger day = [components day];
NSInteger weekday = [components weekday]; // if necessary
NSDateFormatter *weekDay = [[[NSDateFormatter alloc] init] autorelease];
[weekDay setDateFormat:@"EEE"];
NSDateFormatter *calMonth = [[[NSDateFormatter alloc] init] autorelease];
[calMonth setDateFormat:@"MMMM"];
NSLog(@"%@ %i %@ %i", [weekDay stringFromDate:date], day, [calMonth stringFromDate:date], year );
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产量
2011-04-07 12:49:23.519 test[7296:207] Apr 07, 2011
2011-04-07 12:49:23.521 test[7296:207] Thu 7 April 2011
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干杯,乔丹
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