UISearchBar custom corners

问题:

I'm trying to create a search bar like this:

But I'm noticing that I'm probably going to have to replace the search bar with my own image because the search bar corners comes out wrong when I set:

self.searchController.searchBar.layer.cornerRadius = 50 // I've tried other numbers besides this too with no luck
self.searchController.searchBar.clipsToBounds = true

If I set this:

self.searchController.searchBar.layer.cornerRadius = self.searchController.searchBar.bounds.height/2

The search bar comes out like this:

Which still isn't exact like in the image.

Is there a way to replace the left and right side of the textfield with an image that way I can use the rounded corners from my custom search bar?

回答1:

The issue here is you are setting the corner radius on the UISearchBar, not the UITextField inside it. You can do some sort of hack to get the UITextField, but that's not really recommended.

As you mentioned in your question, you'll need to use custom images and the methods shown here: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UISearchBar_Class/#//apple_ref/doc/uid/TP40007529-CH3-SW40

回答2:

I am using this code UISearchBar but you can use this code with UISearchController.

    let searchBar = UISearchBar()
                searchBar.sizeToFit()
                searchBar.placeholder = "Search"
                navigationItem.titleView = searchBar

                if let textfield = searchBar.value(forKey: "searchField") as? UITextField {
                    textfield.textColor = UIColor.blue
                    if let backgroundview = textfield.subviews.first {
                        // Background color
                        backgroundview.backgroundColor = UIColor.white
                        // Rounded corner
                        backgroundview.layer.cornerRadius = 14;
                        backgroundview.clipsToBounds = true;
                    }
                }

回答3:

This IS working for me in swift 3 iOS 10:

    searchController.searchBar.layer.cornerRadius = 20
    searchController.searchBar.clipsToBounds = true