[英]How to show/hide UISearchController searchBar in UITableView?
[英]iOS 13 How to hide UISearchController searchBar in navigationBar
我有带搜索栏的导航栏(UISearchController) 我有左栏按钮图标,单击该图标时,通过将其分配给 navigationItem 来显示此搜索 controller,如下所示:
if navigationItem.searchController != nil {
navigationItem.searchController = nil
navigationController?.view.setNeedsLayout()
navigationController?.view.layoutIfNeeded()
} else {
navigationItem.searchController = searchController
navigationController?.view.setNeedsLayout()
navigationController?.view.layoutIfNeeded()
searchController.searchBar.becomeFirstResponder()
}
它可以工作,但是如果在取消按钮触摸时我尝试隐藏搜索栏,那么我的视图 controller 被关闭并出现黑屏(没有视图控制器)
extension SearchableMenuViewController : UISearchBarDelegate {
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
guard #available(iOS 11.0, *) else { return }
guard !isAlwaysVisible else { return }
if #available(iOS 13.0, *) {
DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
self.navigationItem.searchController = nil
self.navigationController?.view.setNeedsLayout()
self.navigationController?.view.layoutIfNeeded()
}
} else {
navigationItem.searchController = nil
navigationController?.view.setNeedsLayout()
navigationController?.view.layoutIfNeeded()
}
}
我试图添加延迟,因为没有从 navigationItem 中删除此 searchcontroller 将其设置为带有标题 + 搜索 Controller 的扩展导航栏,然后点击搜索图标正确隐藏搜索 controller。 所以问题是我认为在扩展导航栏动画时删除搜索 controller
超级蹩脚的 haxx 可以暂时解决您的问题:
func didDismissSearchController(_ searchController: UISearchController) {
if #available(iOS 13, *) {
navigationItem.searchController = nil
self.navigationController?.view.setNeedsLayout()
self.navigationController?.view.layoutSubviews()
let view = UIView()
self.navigationController?.navigationBar.insertSubview(view, at: 1)
view.removeFromSuperview()
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.