iOS 8 Swift阅读Plist

我想从plist文件中读取整数值。 我有以下代码：

let path = NSBundle.mainBundle().pathForResource("savedState", ofType: "plist") let dict = NSDictionary(contentsOfFile: path!) let players: AnyObject = String(dict.valueForKey("players") as NSString) let level: AnyObject = String(dict.valueForKey("level") as NSString) let numPlayers = Int(players as NSNumber) let playLevel = Int(level as NSNumber) 

让玩家：让级别：崩溃我的应用程序。 我知道这应该很简单 – 我只是想不出怎么做。

Answer 1

你可能正在寻找这样的东西：

 let path = NSBundle.mainBundle().pathForResource("savedState", ofType: "plist") let dict = NSDictionary(contentsOfFile: path!) let players = dict.valueForKey("players") as? String let level = dict.valueForKey("level") as? String let numPlayers = players != nil ? players!.toInt() : 0 let playLevel = level != nil ? level!.toInt() : 0 

它试图将plist中的玩家和级别作为可选字符串读取，然后如果它们不是nil，则将numPlayers和playLevel设置为其Int值。 如果它们是nil numPlayers并且playLevel设置为0.虽然如果你的plist值是整数，为什么不把它们作为Ints读取？

 let players = dict.valueForKey("players") as? Int let level = dict.valueForKey("level") as? Int