Question

我有2个视图控制器，应根据用户输入进行交换。所以，我想根据我从文本文件中获得的输入以编程方式切换视图。

Algorithm : 
if(input == 1)
{
    Go to View Controller 1
}
else if(input ==2)
{
    Go to View Controller 2 
}

有关如何以编程方式单击按钮或使用输入加载特定viewcontroller的任何帮助吗？

Answer 1

要以编程方式触发事件，您需要致电sendActionsForControlEvent

button.sendActionsForControlEvents(.TouchUpInside)

-

Swift 3

button.sendActions(for: .touchUpInside)

Answer 2

或者您可以在单独的方法中单击按钮时放置您执行的所有逻辑，并从按钮的选择器方法中调用该方法。

@IBAction func someButtonPressed(button: UIButton) {
    pushViewControllerOne()
}

@IBAction func someButtonPressed(button: UIButton) {
    pushViewControllerTwo()
}

func pushViewControllerOne() {
    let viewController = ViewControllerOne(nibName: "ViewControllerOne", bundle: nil)
    pushViewController(viewController)
}

func pushViewControllerTwo() {
    let viewController = ViewControllerOne(nibName: "ViewControllerTwo", bundle: nil)
    pushViewController(viewController)
}

func pushViewController(viewController: UIViewController) {
    navigationController?.pushViewController(viewController, animated: true)
}

然后调用方法pushViewControllerOne()或pushViewControllerTwo()

，而不是以编程方式调用按钮按下

如何以编程方式单击按钮？

2 个答案: