UISeachBar detect when user press Search button

问题

I try to get notification when the Search button is clicked in the keyboard in the UISearchBar with this :

    - (BOOL)textFieldShouldReturn:(UITextField *)textField{

        return YES;
    }

But this method won't call when I press the Search button.

回答1:

Have you tried this delegate

Objective-C:

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar

Swift:

func searchBarSearchButtonClicked(searchBar: UISearchBar)

See the documentation for any searchbar delegates. https://developer.apple.com/documentation/uikit/uisearchbardelegate

回答2:

If you want to do something upon 'search' button get clicked then, Try this method

• (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar

Tells the delegate that the search button was tapped.

回答3:

You've to set the searchBar delegate first. In the viewDidLoad()

self.searchBar.delegate = self

then func searchBarSearchButtonClicked(searchBar: UISearchBar)

来源：https://stackoverflow.com/questions/9905013/uiseachbar-detect-when-user-press-search-button