Question

我试图从我的标签中获取int值并将它们传递给另一个标签并将它们添加到一起。在下面的代码kicklabel，handballlabel，marklabel等中，所有内容都需要加起来并等于fantasylabel。根据此代码的设置方式，我不确定如何执行此操作。

我希望能够添加更多标签行，以便将任何数量的标签添加到幻想标签中。

以下是代码：

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var kickLabel1: UILabel!
    @IBOutlet weak var handballLabel1: UILabel!
    @IBOutlet weak var markLabel1: UILabel!
    @IBOutlet weak var tackleLabel1: UILabel!
    @IBOutlet weak var goalLabel1: UILabel!
    @IBOutlet weak var pointLabel1: UILabel!
    @IBOutlet weak var freeForLabel1: UILabel!
    @IBOutlet weak var freeAgainstLabel1: UILabel!
    @IBOutlet weak var fantasyLabel: UILabel!

    var counters: [UILabel: Int] = [:]

    override func viewDidLoad() {
        super.viewDidLoad()

        for label: UILabel in [kickLabel1,handballLabel1,markLabel1,tackleLabel1,goalLabel1,pointLabel1, freeForLabel1, freeAgainstLabel1, fantasyLabel] {
            counters[label] = 0

            for direction: UISwipeGestureRecognizerDirection in [.up, .down, .left, .right] {
                let swipeGesture = UISwipeGestureRecognizer(target: self, action: #selector(didSwipe(_:)))
                swipeGesture.direction = direction
                label.addGestureRecognizer(swipeGesture)
                label.isUserInteractionEnabled = true
                label.isMultipleTouchEnabled = true
            }
        }
    }

    @objc func didSwipe(_ gestureRecognizer: UISwipeGestureRecognizer) {
        guard let label = gestureRecognizer.view as? UILabel else { return }

        debugPrint("\(gestureRecognizer.direction)")

        switch gestureRecognizer.direction {
        case .up:
            counters[label] = counters[label]! + 10
            print(counters)
        case .down:
            counters[label] = 0
            print(counters)
        case .left:
            counters[label] = counters[label]! - 1
            print(counters)
        case .right:
            counters[label] = counters[label]! + 1
            print(counters)
        default:
            counters[label] = 0
        }

        label.text = "\(counters[label]!)"
    }
}

Answer 1

在didSwipe结束时，您需要汇总Int字典中存储的所有counters值。然后使用该总和更新您的fantasy标签。

let sum = counters.reduce(0) { $0 + $1.value }
fantasyLabel.text = "\(sum)"

你可能不希望fantasy标签上的手势，因为该值是基于其他数据总和的只读。

除了fantasy标签外，我还会删除各个标签出口。使用IBOutletCollect存储UILabel的数组。

从标签获取值并在另一个标签中添加在一起

1 个答案: