swift - UserDefaults自定义对象的自定义对象

我想用用户默认值保存的部分设置。
我已经在这里找到了这个解决方案：
Save custom objects into NSUserDefaults
但是如果在自定义对象中有自定义对象，我就不知道如何保存。
我的课是这样的：

class ConfigLabelMainList: NSObject, NSCoding {


    var labelMiddleFirst: StatsIntervalModel
    var labelMiddleSecond: StatsIntervalModel
    var labelMiddleThird: StatsIntervalModel
    var labelRightFirst: StatsIntervalModel
    var labelRightSecond: StatsIntervalModel

    init(labelMiddleFirst: StatsIntervalModel, labelMiddleSecond: StatsIntervalModel, labelMiddleThird: StatsIntervalModel, labelRightFirst: StatsIntervalModel, labelRightSecond: StatsIntervalModel) {
        self.labelMiddleFirst = labelMiddleFirst
        self.labelMiddleSecond = labelMiddleSecond
        self.labelMiddleThird = labelMiddleThird
        self.labelRightFirst = labelRightFirst
        self.labelRightSecond = labelRightSecond
    }

    func encode(with aCoder: NSCoder) {

    }

    required convenience init?(coder aDecoder: NSCoder) {

    }
}


class StatsIntervalModel: NSObject, NSCoding {
    var stat: String
    var interval: String

    init(stat: String, interval: String) {
        self.stat = stat
        self.interval = interval
    }

    required convenience init?(coder aDecoder: NSCoder) {
        let stat = aDecoder.decodeObject(forKey: "stat") as! String
        let interval = aDecoder.decodeObject(forKey: "interval") as! String
        self.init(stat: stat, interval: interval)
    }

    func encode(with aCoder: NSCoder) {
        aCoder.encode(stat, forKey: "stat")
        aCoder.encode(interval, forKey: "interval")
    }

}

一个解决方案看起来怎么样？

最佳答案

在类中添加给定代码ConfigLabelMainList

required convenience init?(coder aDecoder: NSCoder) {

    let midFirst = aDecoder.decodeObject(forKey: "midFirst") as! StatsIntervalModel
    let midSecond = aDecoder.decodeObject(forKey: "midSecond") as! StatsIntervalModel
    let midThird = aDecoder.decodeObject(forKey: "midThird") as! StatsIntervalModel
    let rightFirst = aDecoder.decodeObject(forKey: "rightFirst") as! StatsIntervalModel
    let rightSecond = aDecoder.decodeObject(forKey: "rightSecond") as! StatsIntervalModel

    self.init(labelMiddleFirst: midFirst, labelMiddleSecond: midSecond, labelMiddleThird: midThird, labelRightFirst: rightFirst, labelRightSecond: rightSecond)
}

func encode(with aCoder: NSCoder) {
    aCoder.encode(labelMiddleFirst, forKey: "midFirst")
    aCoder.encode(labelMiddleSecond, forKey: "midSecond")
    aCoder.encode(labelMiddleThird, forKey: "midThird")
    aCoder.encode(labelRightFirst, forKey: "rightFirst")
    aCoder.encode(labelRightSecond, forKey: "rightSecond")
}

现在只需将数据存档并以默认值保存。

关于swift - UserDefaults自定义对象的自定义对象，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/50025808/