问题
I am attempting to have a search bar tied to my UISearchController that appears below the navigation bar, similar to this:
Currently the search bar replaces the title as is common in most/all IOS apps I've seen. I've attempted to control the search bar presentation through a few methods:
1) Creating a new view that sits underneath the nav bar, and assigning the SearchController's search bar to it.
//instead of:
//navigationItem.titleView = searchBar
//do this:
searchplaceholder.addSubview(searchBar)
However the search bar shows up 1/2 way down the screen.
2)Second attempt was to move the frame of the search bar to origin:
searchBar.frame = CGRectMake(0, 0, self.view.frame.width, searchBar.frame.height)
view.addSubview(searchBar)
resultSearchController?.active = true
Looks good initially:
But as soon as I start typing, the bar jumps low again:
How can i Hijack the SearchController to present it's bar either in the nav bar without hiding the page title or constrain the search bar to appear right under the nav bar?
回答1:
The long and short of this is that you can not do what I was attempting to do. You create a searchbar that when clicked transitions to a second screen with a searchbar in the header. This provides the cleanest experience compared to what I have listed above.
来源：https://stackoverflow.com/questions/37978399/ios-search-bar-that-appears-below-navigation