隐藏UISearchDisplayController的搜索栏

时间:2015-10-13 04:26:49

标签: ios objective-c uisearchbar uisearchdisplaycontroller

我有UISearchBar进行了一些自定义,我创建了一个像这样的UISearchDisplayController

self.searchController = [[UISearchDisplayController alloc]initWithSearchBar:self.searchBar contentsController:self];

我希望搜索栏显示在导航栏上,所以我也设置了

self.searchDisplayController.displaysSearchBarInNavigationBar = true;

现在搜索栏显示在导航栏中,但我只想在点击导航栏按钮项时显示UISearchDisplayController的搜索栏。我希望有这样的行为:

  1. 最初隐藏搜索栏
  2. 单击导航栏按钮时显示搜索栏
  3. 点按“取消”按钮时隐藏搜索栏 搜索栏
  4. 我试图隐藏/取消隐藏它:

    self.searchDisplayController.searchBar.hidden = YES;
    

    但代码似乎不起作用。我花了很多时间搜索解决方案以获得我想要的行为,但仍然没有运气。感谢。

2 个答案:

答案 0 :(得分:0)

试试这个:

CGRect searchFrame = self.searchDisplayController.searchBar.frame;
searchFrame.size.height = 0;
self.searchDisplayController.searchBar.frame = searchFrame;
self.searchDisplayController.searchBar.hidden = YES;

编辑:我刚试过下面的代码就行了。看看这对你有帮助!

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.searchDisplayController.searchContentsController.navigationController setNavigationBarHidden:YES animated:YES];
    [self performSelector:@selector(test) withObject:nil afterDelay:2.0];
}


- (void)test {
    [self.searchDisplayController.searchContentsController.navigationController setNavigationBarHidden:NO animated:YES];
}

答案 1 :(得分:0)

也许这是一个合适的解决方案?

要完成任务1,请在您的TVC生命周期方法viewDidLoad中插入一个非动画滚动条,将搜索栏放在导航栏下方...

- (void)viewDidLoad {
    [super viewDidLoad];

    // Scroll off screen the search bar (44 points)
    [[self tableView] setContentOffset:CGPointMake(0, 44)];

    // other code for method
} 

要完成任务2,请在您的TVC中创建与UIBarButtonItem相关联的自定义操作方法,该方法可有效隐藏导航栏,同时显示搜索栏...

- (IBAction)hideNavBar:(UIBarButtonItem *)sender {

    [[self navigationController] setNavigationBarHidden:YES animated:YES]

} 

要完成任务3,请在您的TVC中使用UISearchDisplayController委托方法有效地显示导航栏,同时隐藏搜索栏...

- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {

    [[self navigationController] setNavigationBarHidden:NO animated:YES];
    [[self tableView] setContentOffset:CGPointMake(0, 44)];

    // You might also like to...
    [self setSearchBarText:nil]; // if you are using a property to hold the search bar text
    [self setSearchResults:nil]; // if you are using a property to hold the search results

}
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