以所选格式获取iphone上的当前时间

Question

以下应该给我一个9:30的NSDate对象：

NSString *dateString = @"09-30";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh-mm"];
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [dateFormatter dateFromString:dateString];

如何以相同的格式获取当前时间？

Answer 1

NSDate *currentTime = [NSDate date];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh-mm"];
NSString *resultString = [dateFormatter stringFromDate: currentTime];

Answer 2

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh-mm"];
NSDate *currentDate = [NSDate date];
NSString *currentDateString = [dateFormatter stringFromDate:currentDate];

Answer 3

NSDate alloc init将使用当前时间创建日期。然后，您可以使用NSDateFormatter stringFromDate作为格式并显示该日期。

此：

NSDate *date = [[NSDate alloc] init];
NSLog(@"%@", date);

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh-mm"];
NSString *dateString = [dateFormatter stringFromDate:date];

NSLog(@"%@", dateString);

输出：

2011-12-05 07:20:02.994 Craplet[1706:707] 2011-12-05 12:20:02 +0000
2011-12-05 07:20:02.995 Craplet[1706:707] 07-20

Answer 4

NSDate *today = [[NSDate alloc] init];
NSLog(@"today is :%@", today);

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh-mm:ss"];
NSString *timeString = [dateFormatter stringFromDate:today];

NSLog(@"%@", timeString);

Answer 5

NSDate *currentDate =[NSDate date];
//Your formatter goes here.
NSString *currentTime = [dateFormatter stringFromDate:currentDate];