Question

我如何检查函数是否被调用？我已经创建了一个函数来查看是否完成了这样的级别：

createType

当第一级被击败时，我调用函数levelOneCompleted（）。

然后场景进入另一个场景。正是在这个场景我想检查函数是否被调用。我想我可以做一些“如果声明”。

kotlin.reflect.full

最好的解决方法是什么？

Answer 1

在for a, b in dicta.items(): for c, d in b.items(): print "opponent 1: ", c print "opponent 2: ", d内设置一个布尔标志true：

levelOneCompleted()

后来......

var isLevelOneCompleted = false

func levelOneCompleted(){
    // do things...
    isLevelOneCompleted = true
}

Answer 2

Swift 3＆amp; Xcode 8.3.2

这有两个技巧，这是代码：

// Async operation
func levelOneCompleted(completion: (_ completed: Bool) -> Void) {
    // do your function here
    completion(true)
}

// Here is how to use it
// than u can declare this in viewDidLoad or viewDidAppear, everywhere you name it
override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

    // this is async operation
    levelOneCompleted { (completed) in
        if completed {
            print("levelOneCompleted is complete")
            // do something if levelOneCompleted is complete

            DispatchQueue.main.async {
                // Update your UI
            }
        } else {
            print("levelOneCompleted is not completee")
            // do something if levelOneCompleted is not complete

            DispatchQueue.main.async {
                // Update your UI or show an alert
            }
        }
    }
}


// Or u can use this code too, and this is Sync operation
var isLevelTwoCompleted: Bool = false
func levelOneCompleted() {
    // do your function here
    isLevelTwoCompleted = true
}


// to check it u can put this function everywhere you need it
if isLevelTwoCompleted {
    //do something if level two is complete
} else {
    //do something if level two is  not complete
}

检查功能是否被调用？

2 个答案: