所以我在导航栏下面有一个tableview,当用户在搜索栏中输入内容时,它会显示出来 . 一切似乎都找不到 . 但是当我推动一个视图控制器,当用户在tableview中选择一个单元格,然后从detailViewController返回时,我的tableview被搞砸了 .
•问题:在我按下detailViewController之后,导航栏覆盖了tableview的最顶部单元格 . 但这不会在一开始就发生 .
• 我试过了:
1. Toggled 'Under Top Bars' in the storyboard
2. Check all my constraint
这是将tableview添加到子视图的方式
func updateSearchResults(for searchController: UISearchController) {
// When the user is typing
if let searchText = searchController.searchBar.text, !searchText.isEmpty {
// add the tableview onto the subview
view.addSubview(tableView)
self.searchController.dimsBackgroundDuringPresentation = false
// filter the username array, to match the text in the search bar
filteredUsernames = unfilterdUsernames.filter({ (username) -> Bool in
return username.lowercased().contains(searchText.lowercased())
})
if let usernames = filteredUsernames {
getUsersFromUsernames(usernames: usernames, completion: { (users) in
self.filteredUsers = users
})
}
// else, the user is not typing anything. Remove the tableview from the subview
} else {
self.searchController.dimsBackgroundDuringPresentation = false
tableView.removeFromSuperview()
filteredUsernames = unfilterdUsernames
}
// reload tableview data
tableView.reloadData()
}
这是我进入detailViewController的方式:
tableView(_ tableView:UITableView,didSelectRowAt indexPath:IndexPath)
// the profile view that I want to display, after the user select one of the tableViewCell
let profileController = UIStoryboard(name: "Profile", bundle: nil).instantiateViewController(withIdentifier: "profile") as? ProfileCollectionViewController
// user is the value that I want to transfer to the profileController
// which user from the indexPath in tableView
if let user = filteredUsers?[indexPath.row] {
userToPass = user
// set the delegate to self
profileController?.userDataDelegate = self
// push a navigationController to profileController
self.navigationController?.pushViewController(profileController!, animated: true)
在转到detailViewController之前:
从detailViewController按下后退按钮:
第一个索引由导航控制器覆盖
1 回答
去故事板 .
选择ViewController(不是表视图或导航控制器) .
在属性检查器中,取消选中
Adjust Scroll View Insets