如何在 Apple 的日历应用程序中显示/隐藏导航栏（iOS 8）内的搜索栏？

Question

如何实现：我有一个带有搜索图标的 UIBarButtonItem，点击它后，我想在导航栏中显示搜索栏，点击搜索栏中的取消按钮，我想在没有搜索的情况下显示导航栏IOS 7 日历应用中的按钮和标题。

Answer 1

为您的搜索按钮设置一个操作以显示UISearchController。请参阅 Apple 的 UICatalog sample code 中的 Search > Present Over Navigation Bar 演示：

- (IBAction)searchButtonClicked:(UIBarButtonItem *)sender {
    // Create the search results view controller and use it for the UISearchController.
    AAPLSearchResultsViewController *searchResultsController = [self.storyboard instantiateViewControllerWithIdentifier:AAPLSearchResultsViewControllerStoryboardIdentifier];

    // Create the search controller and make it perform the results updating.
    self.searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
    self.searchController.searchResultsUpdater = searchResultsController;
    self.searchController.hidesNavigationBarDuringPresentation = NO;

    // Present the view controller.
    [self presentViewController:self.searchController animated:YES completion:nil];
}