搜索栏和分段控件

Question

我在故事板上添加UISegmentedControl并在代码中添加SearchBar：

searchController = UISearchController(searchResultsController: nil)
searchController.searchBar.delegate = self
searchController.searchBar.sizeToFit()
searchController.dimsBackgroundDuringPresentation = false
discountTableView.tableHeaderView = searchController.searchBar

激活后搜索栏的位置无效。 如何解决？ Before clicking， After clicking

Answer 1

我通过实现UISearchController

的委托方法克服了这个问题

- (void)willPresentSearchController:(UISearchController *)searchController {

    if (searchController.searchBar.scopeButtonTitles.count == 0) {
        //somewhere I got this
        // there is an Apple bug when first time configuring search bar scope buttons
        // will be displayed no matter what with minimal searchbar
        // to fix this adding scope buttons right before user activates search bar
        searchController.searchBar.showsScopeBar = NO;
        searchController.searchBar.scopeButtonTitles = @[@"title 1", @"title 2"];
    }

}

希望它也能帮到你。