Ios 在UIPageViewController中以编程方式转到下一页
我有一个rootViewController，它基本上是我的pageViewController，它实现了所有的页面控制器协议功能。我已经用一个正确显示当前页码的pageControl成功地实现了整个pageViewController 在rootViewController中包含的第一个页面上，我有一个viewController，其中有多个文本字段必须用pickerView填充。我还创建了一个随选择器一起使用的inputAccessory工具栏。一旦所有字段都填充了文本，工具栏上的“完成”按钮将切换为“完成”。点击这个“完成”按钮，在这个viewController中，我希望rootViewController转到下一页 我第一次尝试直接显示我想要打开的viewController，但注意到页面没有作为pageViewController的一部分显示（很明显，为什么它现在不工作！）。因此，我随后尝试实现一个协议，该协议将触发rootViewController转到下一页。我已经完美地实现了一切，但是没有设置代理。我似乎不明白为什么没有设置。这可能是因为我在UIPageViewController框架流中遗漏了什么吗？我被难住了 最终在协议中，我尝试在包含的ViewController和rootViewController之间进行通信 以下是我的源代码： 在rootController中：Ios 在UIPageViewController中以编程方式转到下一页,ios,swift,protocols,uipageviewcontroller,uitoolbar,Ios,Swift,Protocols,Uipageviewcontroller,Uitoolbar,我有一个rootViewController，它基本上是我的pageViewController，它实现了所有的页面控制器协议功能。我已经用一个正确显示当前页码的pageControl成功地实现了整个pageViewController 在rootViewController中包含的第一个页面上，我有一个viewController，其中有多个文本字段必须用pickerView填充。我还创建了一个随选择器一起使用的inputAccessory工具栏。一旦所有字段都填充了文本，工具栏上的“完成”按
import UIKit
class rootPageViewController: UIViewController, UIPageViewControllerDataSource,
UIPageViewControllerDelegate, tutorialPageTurnerDelegate {
var tutorialOne = userInputViewController()
@IBOutlet var pageLight: UIPageControl!
var turn: UIPageViewController!
let pages = ["userInput","tutorialOne","tutorialTwo","connectScreen"]
var i: Int!
override func viewDidLoad() {
super.viewDidLoad()
if let take = storyboard?.instantiateViewControllerWithIdentifier("pageView") {
self.addChildViewController(take)
self.view.addSubview(take.view)
take.view.addSubview(pageLight)
take.view.bringSubviewToFront(pageLight)
turn = take as! UIPageViewController
turn.dataSource = self
turn.delegate = self
// the delegate for the protocol I've implemented
tutorialOne.delegate = self
turn.setViewControllers([viewControllerAtIndex(0)!], direction: UIPageViewControllerNavigationDirection.Forward, animated: true, completion: nil)
turn.didMoveToParentViewController(self)
}
}
.
.
... pageviewcontroller protocol functions and misc code ...
.
.
// Helper Function to return Index
func viewControllerAtIndex(index: Int) -> UIViewController? {
let vc = storyboard?.instantiateViewControllerWithIdentifier(pages[index])
// _________EDIT_________
if index == 0 {
var tutorialOne: userInputViewController = userInputViewController()
tutorialOne.delegate = self
}
return vc
}
// function required by the protocol
func saveActionCompleted() {
print("Yes it does come here")
turn.setViewControllers([viewControllerAtIndex(1)!], direction: UIPageViewControllerNavigationDirection.Forward, animated: true, completion: nil)
turn.didMoveToParentViewController(self)
}
...
import UIKit
import CoreData
protocol tutorialPageTurnerDelegate {
func saveActionCompleted()
}
class userInputViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate,
UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
var delegate: tutorialPageTurnerDelegate?
override func viewDidLoad() {
super.viewDidLoad()
//Create toolbar
let toolBar = UIToolbar()
toolBar.barStyle = UIBarStyle.Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 81/255, green: 45/255, blue: 168/255, alpha: 1)
toolBar.sizeToFit()
let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: "donePicker")
let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
toolBar.setItems([spaceButton, nextButton], animated: false)
toolBar.userInteractionEnabled = true
....... more misc code ...
}
// The selector function for the toolbar from where I want to notify the root controller
func donePicker(){
self.view.endEditing(true)
saveDataAction(self)
if delegate != nil {
delegate!.saveActionCompleted()
} else {
print("PageTurnerDelegate is nil")
}
}
...
} //End
我要换页了。门是零。我尝试了很多变通办法，但都没有成功。我确实觉得可能有更好的方法。欢迎提出任何建议或见解 您需要设置将显示的视图控制器实例的
委托func viewControllerAtIndex(index: Int) -> UIViewController? {
let vc = storyboard?.instantiateViewControllerWithIdentifier(pages[index])
if index == 0 {
let userInputViewController =vc as! userInputViewController
userInputViewController.delegate = self
}
return vc
}
此外，按照惯例，类以大写字母开头，因此它应该是
UserInputViewController委托func viewControllerAtIndex(index: Int) -> UIViewController? {
let vc = storyboard?.instantiateViewControllerWithIdentifier(pages[index])
if index == 0 {
let userInputViewController =vc as! userInputViewController
userInputViewController.delegate = self
}
return vc
}
另外，按照惯例，类以大写字母开头，因此应该是
UserInputViewControllerviewControllerAtIndexviewControllerAtIndextutoriallyviewControllerAtIndexviewControllerAtIndexuserInputViewControllertutorialOnetutorialOneviewControllerAtIndexviewControllerAtIndexviewControllerAtIndextutoriallyviewControllerAtIndexviewControllerAtIndexuserInputViewControllertutorialOnetutorialOneviewControllerAtIndex