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? [英] How to show/hide a search bar inside a navigation bar (iOS 8) as in Apple's Calendar app?

问题描述

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.

How to implement: I have UIBarButtonItem with a search icon, after I click on it, I want to show the search bar in navigation bar and on click cancel button in search bar, I want to show navigation bar without search and with buttons and title like in IOS 7 calendar app.

推荐答案

为您的搜索按钮设置一个动作以呈现一个 UISearchController.请参阅 Apple 的 UICatalog 示例代码:

Setup an action for your search button to present a UISearchController. See the Search > Present Over Navigation Bar demo in Apple's UICatalog sample code:

- (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];
}

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