// MARK: - 分类. 时间间隔判断
extension Date {
// MARK: - private method
// MARK: 两个日期的间隔
private func daysBetweenDate(toDate: Date) -> Int {
let components = Calendar.current.dateComponents([.day], from: self, to: toDate)
return abs(components.day!)
}
// MARK: 日期对应当周的周几. 周一为开始, 周天为结束
private func dayForWeekAtIndex() -> Int {
let components = Calendar.current.dateComponents([.weekday], from: self)
return (components.weekday! - 1) == 0 ? 7 : (components.weekday! - 1)
}
// MARK: - public method
// MARK: 判断是否为同一周
func isSameWeek(date: Date) -> Bool {
let differ = self.daysBetweenDate(toDate: date)
// 判断哪一个日期更早
let compareResult = Calendar.current.compare(self, to: date, toGranularity: Calendar.Component.day)
// 获取更早的日期
var earlyDate: Date
if compareResult == ComparisonResult.orderedAscending {
earlyDate = self
}else {
earlyDate = date
}
print(earlyDate)
let indexOfWeek = earlyDate.dayForWeekAtIndex()
let result = differ + indexOfWeek
return result > 7 ? false : true
}
Swift 判断是否为同一周
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