Format to MM:SS using NSDateComponentsFormatter
我正在尝试使用
1 2 3 4 5 6 7 | let formatter = NSDateComponentsFormatter() formatter.zeroFormattingBehavior = .Pad formatter.allowedUnits = .CalendarUnitMinute | .CalendarUnitSecond let time: NSTimeInterval = 5 let timeText = formatter.stringFromTimeInterval(time) |
问题是,即使我指定了
这是Apple文档中的相关文章:
1 2 | static var Pad: NSDateComponentsFormatterZeroFormattingBehavior { get } // Off:"1:0:10", On:"01:00:10" |
尽管有文档说明,我还是尝试添加
如何填充文档中显示的第一个数字?
很抱歉输入错误的初始答案,无法将小时数添加为零:
When days, hours, minutes, and seconds are allowed, the value is displayed as a€?0d 1:00:00a€? using the positional style, and as a€?0d 1h 0m 0sa€? using the abbreviated style.
如果您只需要将NSTimeInterval格式化为类似HH:MM:SS的字符串,请检查此答案