当我展示仅支持横向的第二视图控制器时,第一个UIViewController中的安全区域插图更改为横向的安全区域插图。
带有描述错误的 GIF
带有描述的触及选项卡栏和表格视图的错误 GIF
第一视图控制器:
class ViewController: UIViewController {
@IBAction func showSecondVC(_ sender: Any) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "SecondViewController")
self.present(controller, animated: true, completion: {
print("completed")
})
}
override func viewSafeAreaInsetsDidChange() {
print(view.safeAreaInsets)
super.viewSafeAreaInsetsDidChange()
print(view.safeAreaInsets)
}
}
第二个视图控制器:
class SecondViewController: UIViewController {
override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
return [.landscape]
}
@IBAction func dismissYourSelff(_ sender: Any) {
self.dismiss(animated: true, completion: nil)
}
}
控制台输出:
UIEdgeInsets(top: 44.0, left: 0.0, bottom: 34.0, right: 0.0)
UIEdgeInsets(top: 44.0, left: 0.0, bottom: 34.0, right: 0.0)
UIEdgeInsets(top: 0.0, left: 44.0, bottom: 21.0, right: 44.0)
UIEdgeInsets(top: 0.0, left: 44.0, bottom: 21.0, right: 44.0)
completed
这就是我解决约束问题的方式:https://gist.github.com/filletofish/b56600e9e661aa6e49cc0a56a98b37a3
我不得不使用快照来防止TabBar和TableView的错误布局。
override func present(_ viewControllerToPresent: UIViewController, animated flag: Bool, completion: (() -> Void)? = nil) {
var completionToRemoveSnapshot: (() -> ())? = nil
let shouldUseSnapshot = SDiOSVersion.deviceSize() == .Screen5Dot8inch &&
viewControllerToPresent.supportedInterfaceOrientations == .landscape
if shouldUseSnapshot {
if let snapShot = self.view.snapshotView(afterScreenUpdates: true) {
viewController.view.addSubview(snapShot)
completionToRemoveSnapshot = { snapShot.removeFromSuperview() }
}
}
super.present(viewControllerToPresent, animated: flag, completion: {
completionToRemoveSnapshot?()
completion?()
})
}