我使用默认的UINavigationController
实现和默认手势从左到右弹出(交互式PopGestureRecognizer(。如何使interactivePopGestureRecognizer
弹出到根控制器而不是仅 1 个顶级控制器?
我找到了一种方法,可以在推送新视图后从堆栈中删除以前的视图控制器。
navigationController.pushViewController(newViewController, animated: true, completion: {
self.navigationController.removePreviousViewController()
})
A 这里是扩展
extension UINavigationController {
func pushViewController(_ viewController: UIViewController, animated: Bool, completion: @escaping () -> Void) {
pushViewController(viewController, animated: animated)
guard animated, let coordinator = transitionCoordinator else {
DispatchQueue.main.async { completion() }
return
}
coordinator.animate(alongsideTransition: nil) { _ in completion() }
}
func removePreviousViewController() {
if viewControllers.count > 2 {
viewControllers.removePrevious()
}
}
}
一些帮手
extension Array {
mutating func removePrevious() {
remove(at: count - 2)
}
}