xcode - 在 swift 中将 NSManagedObject 属性从 num 转换为 Bool

Question

我知道这个问题已被问过很多次，但解决方案对我不起作用。我有以下 NSManaged 对象类:

@NSManaged var cellColor: AnyObject
@NSManaged var des: String
@NSManaged var name: String
@NSManaged var switcher: NSNumber

当加载托管对象时尝试将此值作为 bool 分配给 var 时，我收到错误。这是将值分配给 var 的示例:

func loadData(){
var appDel = UIApplication.sharedApplication().delegate as AppDelegate
var context = appDel.managedObjectContext!
var request = NSFetchRequest(entityName: "Row")
var result:NSArray = context.executeFetchRequest(request, error: nil)!
if result.count > 0 {
    for i in result{

        var name = i.name as String
        var des = i.des as String
        var color = i.cellColor as UIColor
        var switcher:Bool{
            get{

            return i.switcher == NSNumber(bool: true) 
            //the problem    happens here

但是，当我尝试以这种方式进行转换的简单示例时，效果很好。

如何解决？

Answer 1

我认为就像这样:

for i in results {
    var name = i.name as String
    var des = i.des as String
    var color = i.cellColor as UIColor
    var switcher: Bool {
        return Bool(i.switcher)
    }
}

但没有测试过。