我有一个MapViewController
,基本上是一个MKMapView
,并提供了带有自定义注释的地图。
现在,我试图从底部显示另一个ViewController,其中包含用户可以在旅途中使用的其他过滤器。
但是我遇到了一个问题,当我将新的FilterMenuViewController
作为MapViewController
的子级出现时,MapViewController
消失了。
看起来是这样的:
Initial state
Button to present new controller tapped
New controller presented but the MapViewController disappearing
处理交互的代码如下:MapViewController
变量声明:
var filterMenuVC = FilterMenuViewController()
var isFilterMenuOpened = false
MapViewController viewDidLoad()
: filterMenuVC = storyboard?.instantiateViewController(withIdentifier: "FilterMenuViewController") as! FilterMenuViewController
MapViewController showFilterMenu
按钮操作:@IBAction func showFilterMenu(_ sender: UIButton) {
// Presents the filter menu
if isFilterMenuOpened == true {
isFilterMenuOpened = false
filterMenuVC.willMove(toParentViewController: nil)
filterMenuVC.view.removeFromSuperview()
filterMenuVC.removeFromParentViewController()
} else if isFilterMenuOpened == false {
isFilterMenuOpened = true
self.addChildViewController(filterMenuVC)
self.view.addSubview(filterMenuVC.view)
filterMenuVC.didMove(toParentViewController: self)
}
}
最佳答案
试试看,视图从上到下显示,如下图所示:https://imgur.com/a/gzIGjEa
if isFilterMenuOpened{
if let searching = self.childViewControllers.first as? ViewController{
UIView.animate(withDuration: 0.7, animations: {
searching.view.frame = CGRect.init(x: 0,
y: self.view.frame.origin.y-308,
width: self.view.frame.size.width,
height: 308)
}, completion: {(boos) in
searching.removeFromParentViewController()
searching.dismiss(animated: true, completion: nil)
self.isFilterMenuOpened = false
})
}
}else{
let search = self.storyboard?.instantiateViewController(withIdentifier: "searchView") as! ViewController
search.view.frame = CGRect.init(x: 0, y: self.view.frame.origin.y-308, width: self.view.frame.size.width, height: 308) //The View controller height same size of your view in storyboard
search.delegateSearch = self
self.addChildViewController(search)
UIView.animate(withDuration: 0.5, animations: {
search.view.frame = CGRect.init(x: 0, y: self.view.frame.origin.y, width: self.view.frame.size.width, height: 308)
})
self.view.addSubview(search.view)
self.didMove(toParentViewController: search)
isFilterMenuOpened = true
}
关于ios - 部分展示一个ViewController,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/52611662/