Question

我是故事板编程的新手。我设计了一个故事板（比如SB1），它的viewcontroller中有两个功能。我有另一个故事板（SB2），它有两个按钮。从两个按钮我想显示SB1，但是当我按下button1，然后执行func1，如果我按下button2，那么应该执行fun2。任何建议。

我的代码如下。

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if let viewController = segue.destinationViewController as? StotyBoard1ViewController
        where segue.identifier == "LocatorSegue" {
            viewController.func1()
    }
    //how to invoke SB1 Func2 from here
}


@IBAction func button1Click(sender: AnyObject) {
    self.performSegueWithIdentifier("SB1Segue", sender: self)
}

@IBAction func button2Click(sender: AnyObject) {
{
    self.performSegueWithIdentifier("SB1Segue", sender: self)
}

Answer 1

制作一个BOOL类型的全局变量让我们在isCallFunc1课程中说SB1，现在在prepareForSegue分配BOOL变量的值如同

这样的不同按钮动作，为true

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if let viewController = segue.destinationViewController as? StotyBoard1ViewController
        if segue.identifier == "SB1Segue" {
            viewController.isCallFunc1 = true
    } else {
            viewController.isCallFunc1 = false
    }
}

根据BOOL变量，现在在SB1的viewWillAppear中你必须调用适当的函数，如

if isCallFunc1 {
    function1()
} else {
    function2()
}

同时更改button2Click的标识符以区分标识符

@IBAction func button1Click(sender: AnyObject) {
    self.performSegueWithIdentifier("SB1Segue", sender: self)
}

@IBAction func button2Click(sender: AnyObject) {
{
    self.performSegueWithIdentifier("SB1SegueOther", sender: self)
}

Answer 2

你可以这样做： -

    @IBOutlet weak var button1: UIButton!
    @IBOutlet weak var button2: UIButton!
    var sender: UIButton?

    func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if let viewController = segue.destinationViewController as? StotyBoard1ViewController {
        if segue.identifier == "SB1Segue" {
            if self.sender == button1 {
                viewController.func1()
            } else if self.sender == button2 {
                 viewController.func2()
            }
        }
   } 

    @IBAction func button1Click(sender: AnyObject) {
        self.sender = sender as! UIButton
        self.performSegueWithIdentifier("SB1Segue", sender: self)
    }

    @IBAction func button2Click(sender: AnyObject) {
    {
        self.sender = sender as! UIButton
        self.performSegueWithIdentifier("SB1Segue", sender: self)
    }

故事板视图控制器具有不同的功能

2 个答案: