我正在创建一个应用程序,我必须在其中打开一个 View Controller 内的 2-3 个 View Controller ,因为我想为这些 View Controller 共享相同的滑动抽屉和导航栏。我关注了this教程。
我在 MainController 中使用了 ContainerView 并正确添加了子 Controller ,但我很难调整子 Controller 的大小以匹配 containerview
self.mainContainer.addSubview(vc.view)
self.mainContainer.translatesAutoresizingMaskIntoConstraints = false
addChildViewController(vc)
NSLayoutConstraint.activate([
vc.view.leadingAnchor.constraint(equalTo:mainContainer.leadingAnchor),
vc.view.trailingAnchor.constraint(equalTo: mainContainer.trailingAnchor),
vc.view.topAnchor.constraint(equalTo: mainContainer.topAnchor),
vc.view.bottomAnchor.constraint(equalTo: mainContainer.bottomAnchor)
])
vc.didMove(toParentViewController: self)
我收到以下错误
[LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSAutoresizingMaskLayoutConstraint:0x170095c70 h=-&- v=-&- UIView:0x127e17630.midY == UIView:0x127e15070.midY + 32 (active)>",
"<NSLayoutConstraint:0x1740970c0 V:|-(0)-[UIView:0x127e17630] (active, names: '|':UIView:0x127e15070 )>",
"<NSLayoutConstraint:0x174097020 UIView:0x127e17630.bottom == UIView:0x127e15070.bottom (active)>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x174097020 UIView:0x127e17630.bottom == UIView:0x127e15070.bottom (active)>
我认为 self.mainContainer.translatesAutoresizingMaskIntoConstraints = false 不知何故不起作用 subview Controller 未正确调整大小,因为在主 Controller 中,导航栏约为 64,并且相同高度的部分在 subview Controller 中从底部被剪裁。
MainController的元素约束
导航栏 left=top=right = 0, height = 64
UIContainerView left=right=bottom=0 and top to navbar = 0
最佳答案
您可以简单地设置vc
的框架,而不是将约束应用于vc 的
view
,即
vc.view.frame = self.containerView.bounds //Here
self.containerView.addSubview(vc.view)
self.addChildViewController(vc)
vc.didMove(toParentViewController: self)
关于ios - 在 UIContainerView swift ios 中调整 subview Controller 的大小,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45627451/