iphone - 是否可以更改 UISearchDisplayController 搜索栏的边框颜色？

Question

我使用以下代码添加了一个 UISearchBar 作为表头。

searchBar = [[UISearchBar alloc] initWithFrame:self.tableView.bounds];
searchBar.tintColor = [UIColor colorWithWhite:185.0/255 alpha:1.0];
[searchBar sizeToFit];
self.tableView.tableHeaderView = searchBar;

然后我按如下方式设置我的 UISearchDisplayController。

searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
[searchDisplayController setDelegate:self];
[searchDisplayController setSearchResultsDataSource:self];

一切都按照我想要的方式运行，除了UISearchDisplayController在搜索栏上方添加了一个蓝色(ish)边框 - 该栏无法识别我设置的tintColor在搜索栏上。

是否可以更改此栏的颜色？这显然不是绝对重要的，但如果这条线保持这样的蓝色，我将永远烦恼!

zoomed in on UISearchBar http://nikonizer.yfrog.com/Himg256/scaled.php?tn=0&server=256&filename=4y9.png&xsize=640&ysize=640

Answer 1

边框似乎不太适合色调颜色的变化，所以我的设计师坚持要求我们更改它。就像在搜索栏底部添加 1px View 一样简单:

现在在 viewDidLoad 中，我创建一个 1px View 并将其放置在搜索栏的最底部。

#define SEARCHBAR_BORDER_TAG 1337
- (void) viewDidLoad{
    // Set a custom border on the bottom of the search bar, so it's not so harsh
    UISearchBar *searchBar = self.searchDisplayController.searchBar;
    UIView *bottomBorder = [[UIView alloc] initWithFrame:CGRectMake(0,searchBar.frame.size.height-1,searchBar.frame.size.width, 1)];
    [bottomBorder setBackgroundColor:[UIColor colorWithWhite:200.0f/255.f alpha:1.0f]];
    [bottomBorder setOpaque:YES];
    [bottomBorder setTag:SEARCHBAR_BORDER_TAG];
    [searchBar addSubview:bottomBorder];
    [bottomBorder release];
}

现在，当用户实际搜索时，我还将色调颜色转换回默认颜色，因为搜索栏着色也会将取消按钮颜色着色为丑陋的颜色。如果您执行类似的操作，下面的代码将隐藏/显示每个状态的边框:

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller{
    [controller.searchBar setTintColor:nil];

    // Hide our custom border
    [[controller.searchBar viewWithTag:SEARCHBAR_BORDER_TAG] setHidden:YES];
}

- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller{
    [controller.searchBar setTintColor:[UIColor colorWithRed:238.0f/255.0f green:245.0f/255.0f blue:248.0f/255.0f alpha:1.0f]];
    //Show our custom border again
    [[controller.searchBar viewWithTag:SEARCHBAR_BORDER_TAG] setHidden:NO];
}