迁移到Swift 3之后的Spotlight索引问题

Question

最近我将Xcode项目转换为Swift 3.0，现在我遇到了Spotlight索引问题。我用我的价值观的那些最终索引：

var searchableItems: [CSSearchableItem] = [] 
    let nameDays = ND.allnames() 

    for (key, item) in nameDays as! [String:AnyObject] { 
     let attributeSet = CSSearchableItemAttributeSet(itemContentType: kUTTypeItem as String) 
     let locItem = item["CZ"] as AnyObject 
     if (locItem["long"] is String) { 
      attributeSet.title = locItem["long"] as? String 
     } 
     else { 
      attributeSet.title = locItem["basic"] as? String 
     } 
     let todayArr = key.characters.split{$0 == "-"}.map(String.init) 
     let day = String(Int(todayArr[1])!) + "." + String(Int(todayArr[0])!) + "." as String 
     attributeSet.contentDescription = day 

     let searchableItem = CSSearchableItem(uniqueIdentifier: key, domainIdentifier: "namedays", attributeSet: attributeSet) 
     searchableItems.append(searchableItem) 
    } 

CSSearchableIndex.default().indexSearchableItems(searchableItems) { (error) -> Void in 
     if error == nil { 
      print("Searchable items were indexed successfully") 
     } else { 
      print(error?.localizedDescription) 
     } 
} 

但是当我运行的应用程序，焦点不搜索我的应用程序内的任何东西。没有编译错误。

Answer 1

我能解决这个问题。 问题出现在循环中，并从字典中分配。

let locItem = item.object(forKey: "CZ") as AnyObject! 
     if (locItem?["long"] is String) { 
      attributeSet.title = locItem?["long"] as? String 
     } 
     else { 
      attributeSet.title = locItem?["basic"] as? String 
     }