使用Swift将表格视图链接到“编辑”按钮,且用户信息已就位
我有一个编辑按钮(当用户向右滑动时显示),我试图链接到下表视图,但字段中已经有用户信息。我该怎么做那样的事呢 我想这与这件作品有关,但我尝试过的一切都不起作用:使用Swift将表格视图链接到“编辑”按钮,且用户信息已就位,swift,uitableview,edit,Swift,Uitableview,Edit,我有一个编辑按钮(当用户向右滑动时显示),我试图链接到下表视图,但字段中已经有用户信息。我该怎么做那样的事呢 我想这与这件作品有关,但我尝试过的一切都不起作用: let newRelease = Release_Date(context: context) newRelease.artist = artist newRelease.album = album newRelease.release_date = releasedate as NSDate? newRelease.release_d
let newRelease = Release_Date(context: context)
newRelease.artist = artist
newRelease.album = album
newRelease.release_date = releasedate as NSDate?
newRelease.release_dateId = UUID().uuidString
以下是表视图代码:
import UIKit
import CoreData
import UserNotifications
class AddfreshreleaseViewController: UIViewController {
@IBOutlet var artisttextfield: UITextField!
@IBOutlet var albumtextfield: UITextField!
@IBOutlet var releasedatePicker: UIDatePicker!
override func viewDidLoad() {
super.viewDidLoad()
releasedatePicker.minimumDate = Date()
// Do any additional setup after loading the view, typically from a nib.
}
@IBAction func saveTapped( _ sender: UIBarButtonItem) {
let artist = artisttextfield.text ?? ""
let album = albumtextfield.text ?? ""
let releasedate = releasedatePicker.date
let appDelegate = UIApplication.shared.delegate as! AppDelegate
let context = appDelegate.persistentContainer.viewContext
let newRelease = Release_Date(context: context)
newRelease.artist = artist
newRelease.album = album
newRelease.release_date = releasedate as NSDate?
newRelease.release_dateId = UUID().uuidString
if let uniqueId = newRelease.release_dateId {
print("The freshreleaseId is \(uniqueId)")
}
do {
try context.save()
let message = "\(artist)'s new album \(album) releases Today!"
let content = UNMutableNotificationContent()
content.body = message
content.sound = UNNotificationSound.default()
var dateComponents = Calendar.current.dateComponents([.month, .day],
from: releasedate)
dateComponents.hour = 09
dateComponents.minute = 00
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents,
repeats: true)
if let identifier = newRelease.release_dateId {
let request = UNNotificationRequest(identifier: identifier,
content: content, trigger: trigger)
let center = UNUserNotificationCenter.current()
center.add(request, withCompletionHandler: nil)
}
} catch let error {
print("Could not save because of \(error).")
}
dismiss(animated: true, completion: nil)
print("Added a Release Date!")
print("Artist: \(newRelease.artist)")
print("Album: \(newRelease.album)")
print("Release Date: \(newRelease.release_date)")
}
@IBAction func cancelTapped(_ sender: UIBarButtonItem) {
dismiss(animated: true, completion: nil)
}
}您能否提供其他参考上下文?例如,是否希望“编辑”按钮将表格视图设置为编辑模式?我希望“编辑”按钮返回到用户输入单元格信息的位置。从现在起,以一种方式滑动显示删除按钮,以另一种方式滑动显示编辑按钮。但是“编辑”按钮没有任何作用,我不知道如何让它返回到用户输入信息的位置。