Question

如何将此代码转换为swift 4？我认为这段代码是用swift 2编写的。我不太懂。我下载了Xcode 8，但我无法迁移。我想把它变成Swift 3然后转到Swift 4，但我没有成功。你会以清楚的方式告诉我还是翻译它？

NSCalendar *gregCalrendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];

NSDateComponents *dateComponent = [gregCalrendar components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit fromdate:[NSDate date]];

[dateComponent setYear:2012];
[dateComponent setMonth:9];
[dateComponent setDay:28];
[dateComponent setHour:16];
[dateComponent setMinute:11];

UIDatePicker *dd = [[UIDatePiclet alloc]init];
[dd setDate:[gregCalrendar dateFromComponents:dateComponent]];


UILocalNotification *notification: [[UILocalNotification alloc]init];
[notification setAlertBody:@"UMUT CAN ALPARSLAN"];
[notification setFireDate:dd.date];
[notification setTimeZone:[NSTimeZone defaultTimeZone]];
[application setScheduledLocalNotifications:[NSArray arrayWithObject:notificaion]];

Answer 1

UILocalNotification已弃用。试试这段代码：

    let gregCalrendar = Calendar(identifier: .gregorian)
    var dateComponent = gregCalrendar.dateComponents([.year, .month, .day, .hour, .minute], from: Date())

    dateComponent.year = 2012
    dateComponent.month = 9
    dateComponent.day = 28
    dateComponent.hour = 16
    dateComponent.minute = 11

    let dd = UIDatePicker()
    dd.setDate(gregCalrendar.date(from: dateComponent)!, animated: true)

    let content = UNMutableNotificationContent()
    content.title = "UMUT CAN ALPARSLAN"

    let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponent, repeats:false)
    let request = UNNotificationRequest(identifier: "uniqueId", content: content, trigger: trigger)

    UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)

您还需要在顶部添加import UserNotifications

如何将此代码转换为swift 4？

1 个答案: