我有一个应用程序,其中有一个“ DadViewController”,其中包含一个启用分页的UIScrollView
。每个页面都填充有不同的UIViewController
。
如何在UIViewController
所包含的一个控制器内,通过按钮轻按新的UIScrollView
?
class DadView: UIView {
let model = DadModel()
let scrollView: UIScrollView = {
let view = UIScrollView()
view.isPagingEnabled = true
// Additional setup...
return view
}()
override init(frame: CGRect) {
super.init(frame: frame)
setupScrollView()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
fileprivate func setupScrollView() {
self.addSubview(scrollView)
// Autolayout code to pin scrollview to all 4 sides
let vc1 = VC1()
scrollView.addSubview(vc1.view)
vc1.view.frame = CGRect(x: 0, y: 0, width: SCREEN_WIDTH, height: SCREEN_HEIGHT)
// Add additional view controller views with the appropriate frames...
}
}
class DadController: UIViewController {
var dadView: DadView!
override func loadView() {
super.loadView()
dadView = DadView()
view = dadView
}
override func viewDidLoad() {
super.viewDidLoad()
}
}
class VC1: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .green
}
}
答案 0 :(得分:0)
更改您的DadView setupScrollView以接受UIViewController实例作为参数。而且不要在init中调用此方法
class DadView: UIView {
let model = DadModel()
let scrollView: UIScrollView = {
let view = UIScrollView()
view.isPagingEnabled = true
// Additional setup...
return view
}()
override init(frame: CGRect) {
super.init(frame: frame)
// setupScrollView()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
fileprivate func setupScrollView(_ parentVC: UIViewController) {
self.addSubview(scrollView)
// Autolayout code to pin scrollview to all 4 sides
let vc1 = VC1()
vc1.view.frame = CGRect(x: 0, y: 0, width: SCREEN_WIDTH, height: SCREEN_HEIGHT)
parentVC.addChild(vc1)
scrollView.addSubview(vc1.view)
vc1.didMove(toParent: parentVC)
// Add additional view controller views with the appropriate frames...
}
}
在创建DadView实例后,在DadViewController中使用self调用setupScrollView方法
class DadController: UIViewController {
var dadView: DadView!
override func loadView() {
super.loadView()
dadView = DadView()
dadView.setupScrollView(self)
view = dadView
}
override func viewDidLoad() {
super.viewDidLoad()
}
}
然后您可以从子viewcontroller获取父视图控制器并执行push
class VC1: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .green
}
@IBAction func buttonAction(_ sender: UIButton) {
self.parent?.navigationController?.pushViewController(NewVC(), animated: true)
}
}