在我的应用中,要从日期获取日期(即Sunday
,Monday
等)。
我的代码如下:
NSDate *currentDate = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
//ask for current week
NSDateComponents *comps = [[NSDateComponents alloc] init];
comps=[calendar components:NSWeekCalendarUnit|NSYearCalendarUnit fromDate:currentDate];
//create date on week start
NSDate* weekstart=[calendar dateFromComponents:comps];
//add 7 days
NSMutableArray* week=[NSMutableArray arrayWithCapacity:7];
for (int i=1; i<=7; i++) {
NSDateComponents *compsToAdd = [[NSDateComponents alloc] init];
compsToAdd.day=i;
NSDate *nextDate = [calendar dateByAddingComponents:compsToAdd toDate:weekstart options:0];
NSLog(@"%@",nextDate); // date is 2013-06-30 18:30:00 +0000
NSDateFormatter *myFormatter = [[NSDateFormatter alloc] init];
[myFormatter setDateFormat:@"EEEE"]; // day, like "Saturday"
//[myFormatter setDateFormat:@"c"]; // day number, like 7 for saturday
NSString *dayOfWeek = [myFormatter stringFromDate:nextDate];
问题
NSLog(@"Today is: %@", dayOfWeek); // Prints Mondays instead of Sunday
}
我该如何解决?
最佳答案
试试这个 :
NSCalendar* calender = [NSCalendar currentCalendar];
NSDateComponents* component = [calender components:NSWeekdayCalendarUnit fromDate:[NSDate date]];
return [component weekday]; // 1 for Sunday, 2 for Monday, and so on...
并同时看到这个Day Name From NSDate?和这个https://discussions.apple.com/thread/1700102?start=0&tstart=0
编辑
尝试这个
NSString * time = @"2013-06-30T11:00:26+0100";
NSDateFormatter *df = [[[NSDateFormatter alloc] init] autorelease];
[df setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"];
NSDate *date1 = [df dateFromString:time];
long lgTime = (long)[date1 timeIntervalSince1970];
NSLog(@"%ld", lgTime);
NSCalendar* calender = [NSCalendar currentCalendar];
NSDateComponents* component = [calender components:NSWeekdayCalendarUnit fromDate:date1];
NSLog(@"date=%@ === %@",[NSDate date],date1);
NSLog(@"day= %d",[component weekday]); ///it return 1
关于iphone - 从iOS SDK中的日期获取日期,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17403761/