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:和让级别:使我的应用程序崩溃。我知道这应该很简单 - 我只是不知道该怎么做。
您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
它尝试从 plist 中读取玩家和关卡作为可选字符串,然后如果它们非零,则将 numPlayers 和 playLevel 设置为它们的 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,为什么不直接将它们读取为 Ints 呢?
let players = dict.valueForKey("players") as? Int
let level = dict.valueForKey("level") as? Int
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