2017-06-20 82 views

回答

0

我已經實現了它這樣的:

class Person { 
    var firstName: String 
    var lastName: String 
    private var fullNameBG: Observable<String> 
    var fullName: Observable<String> { 
     computedPropBG.next("\(firstName) \(lastName)") 
     return computedPropBG 
    } 
    init() { 
     fullNameBG = Observable("") 
    } 
} 

會很高興地聽到一個更好的解決方案。