iOS swift，当在 UIView 中调用 touchesEnded 时，PresencetViewController 其他 xib 或 Storyboard 中的 ViewController答案

【问题标题】：iOS swift, When touchesEnded called in UIView, presencetViewController other xib or ViewController in StoryboardiOS swift，当在 UIView 中调用 touchesEnded 时，PresencetViewController 其他 xib 或 Storyboard 中的 ViewController
【发布时间】：2017-11-02 14:18:56
【问题描述】：

我想在xib中调用touchEnded函数时展示ViewController，但我不知道如何实现它。

这是我项目的一部分。

// ViewController.swift

class ViewController: UIViewController {

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        // add custom xib view (day view)
        let view = Bundle.main.loadNibNamed("ScheduleView", owner: self, options: nil)?.first as! ScheduleView
        view.frame = self.view.frame

        self.view.addSubview(view)
    }


}

// ScheduleView.swift

class ScheduleView.swift: UIView {

    /*
    // Only override draw() if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {
        // Drawing code
    }
    */

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)

        print("touchesBegan")
    }
    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesEnded(touches, with: event)

        print("touchesEnd")

        // move scene in here
        // show secondViewController
    }



}

// secondeViewController.swift

class secondeViewController.swift: UIViewController {

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

    }


}

【问题讨论】：

标签： ios swift uiview uiviewcontroller presentviewcontroller

【解决方案1】：

只有视图控制器可以呈现另一个视图控制器。您可以使用委托模式来执行此操作。

创建一个新协议

protocol PresentVCDelegate {
    func presentVC()
}

在 ScheduleView 中添加一个属性

var presentVCDelegate: PresentVCDelegate

在您的 ViewController 中，遵守此协议并将 View 的委托设置为 self

//in view will appear
view.presentVCDelegate = self

别忘了遵守协议

extension ViewController: PresentVCDelegate {
    func presentVC() {
        //present your secondViewController here
    }
}

最后在 ScheduleView 中的 touchEnd 方法中，调用委托方法

self.presentVCDelegate.presentVC()

【讨论】：

【解决方案2】：

这是我的解决方案。

// ViewController.swift

class ViewController: UIViewController {

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        // add custom xib view (day view)
        let view = Bundle.main.loadNibNamed("ScheduleView", owner: self, options: nil)?.first as! ScheduleView
        view.frame = self.view.frame

        //in view will appear
        view.presentVCDelegate = self

        self.view.addSubview(view)
    }


}

extension ViewController: PresentVCDelegate {
    func presentVC() {
        //present your secondViewController here
    }
}

// ScheduleView.swift

protocol PresentVCDelegate {
    func presentVC()
}

class ScheduleView: UIView {
    var presentVCDelegate: PresentVCDelegate
    /*
    // Only override draw() if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {
        // Drawing code
    }
    */

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)

        print("touchesBegan")
    }
    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesEnded(touches, with: event)

        print("touchesEnd")

        // move scene in here
        // show secondViewController

    }



}

// secondeViewController.swift

class secondeViewController: UIViewController {

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

    }


}

【讨论】：