-3
A
回答
1
使用 static let sharedInstance = ModelManager()
,然后宣布你的初始化为private
private init() {
database = FMDatabase(init: SomeObject)
}
0
尝试这样做:
class SomeSingleton {
internal static let sharedInstance = SomeSingleton()
// Your singleton properties
var name = ""
private init() { }
}
然后你就可以访问它想:
SomeSingleton.sharedInstance.name = "John"
let currentName = SomeSingleton.sharedInstance.name
0
你不允许对类或静态函数访问实例属性。解决方法是将sharedInstance属性设置为静态属性。
static let sharedInstance = ModelManager()
0
方法返回共享实例
class var sharedInstance :YourClass {
struct Singleton {
static let instance = YourClass()
}
return Singleton.instance
}
访问共享的实例:
let sharedInstance = YourClass.sharedInstance()
0
Singleton实例:使用结构与班组长的计算性能,而不是
class MyClass :NSObject{
class var sharedInstance : MyClass {
struct Singleton {
static let instance = MyClass()
}
return Singleton.instance
}
// do other stuff here
func getCustomerLists()-> Any{
// return
}
}
访问:
MyClass.sharedInstance. getCustomerLists()
0
尝试编写甲波纹管: -
class var sharedInstance: YourClass {
struct Static {
static var onceToken: dispatch_once_t = 0
static var instance: YourClass? = nil
}
dispatch_once(&Static.onceToken) {
Static.instance = YourClass()
}
return Static.instance!
}
化妆'sharedInstance'静态 – sargeras
你应该访问为'ModelManager.sharedInstance',但在此之前,作为其他有建议,你需要声明它为'static let sharedInstance' – GoodSp33d