Question

我将搜索栏放在导航栏中，其中包含以下代码：

UISearchBar* searchBar = [[UISearchBar alloc] init];
searchBar.delegate = self;
[searchBar setShowsSearchResultsButton:YES];
self.navigationItem.titleView = searchBar;

当我在iOS 7中运行相同的代码时，它可以正常工作。

但搜索栏无法在iOS 6中运行：当我触摸它时，键盘不会出现;当我单击搜索栏中的结果列表按钮时，也没有任何反应。救命啊！

（基础SDK是iOS 7.0）

EDIT1

解决这样的问题：只需覆盖导航栏上的搜索栏即可。

if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)
    // Left Cancel button.
    UIBarButtonItem *barbtnCancel = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancel:)];
    self.navigationItem.leftBarButtonItem = barbtnCancel;

    // Right Search button.
    UIBarButtonItem *barbtnSearch = [[UIBarButtonItem alloc] initWithTitle:@"Search" style:UIBarButtonItemStyleBordered target:self action:@selector(search:)];
    self.navigationItem.rightBarButtonItem = barbtnSearch;

    // Navigation bar.
    UINavigationBar* navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, 44)];
    [navBar pushNavigationItem:self.navigationItem animated:YES];
    [self.view addSubview:navBar];

    // Search bar.
    self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(53, 0, SCREEN_WIDTH-53-53, 44)];
    self.searchBar.delegate = self;
    [self.searchBar setBarStyle:UIBarStyleDefault];
    [self.searchBar setKeyboardType:UIKeyboardTypeDefault];
    [self.searchBar setPlaceholder:@"Search Something"];
    [self.searchBar setShowsSearchResultsButton:NO];
    [self.view addSubview:self.searchBar];
}

Answer 1

您需要使用非CGRectZero的框架初始化搜索栏。

UINavigationBar中的iOS 6 UISearchBar不起作用

EDIT1

1 个答案: