ios - 将时区添加到日期选择器

Question

如何向日期选择器添加时区？
这是我现在的代码:输出格式:像这样 2018-04-10T04:24:24.443980+08:00

@available(iOS 11.0, *)
    func donePressed() {
        let formatter = ISO8601DateFormatter()
        if #available(iOS 11.0, *) {
            formatter.formatOptions.insert(.withFractionalSeconds)
        } else {
            // Fallback on earlier versions
        }
        let dateString = formatter.string(from: picker.date)
        choreSchedule.text =  "\(dateString)"
    }

Answer 1

假设您只是尝试从用户系统设置时区，则可以在设置 UIDatePicker 时使用 TimeZone.current 属性(或选择您选择的时区):

let picker = UIDatePicker()
picker.timeZone = .current

或者如果您有可变时区:

func donePressed(timeZone: TimeZone) {
    let formatter = ISO8601DateFormatter()
    if #available(iOS 11.0, *) {
        formatter.formatOptions.insert(.withFractionalSeconds)
    } else {
        // Fallback on earlier versions
    }
    picker.timeZone = timeZone
    let dateString = formatter.string(from: picker.date)
    choreSchedule.text =  "\(dateString)"
}