用作UINavigationBar titleVIew时未调用UISearchBar委托?
问题描述:
我有一个UITableViewController,我已经指定为UISearchBarDelegate。直到现在,我已经以编程方式将UISearchBar添加到表的headerView中,并且没有任何问题。用作UINavigationBar titleVIew时未调用UISearchBar委托?
我开始跑出来的屏幕房地产,所以我决定杀了我正常的UINavigationController冠军(这是文本),并添加如下代码,从表中移动我的搜索栏到UINavigationBar的:
// (Called in viewDidLoad)
// Programmatically make UISearchBar
UISearchBar *tmpSearchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0,0,320,45)];
tmpSearchBar.delegate = self;
tmpSearchBar.showsCancelButton = YES;
tmpSearchBar.autocorrectionType = UITextAutocorrectionTypeNo;
tmpSearchBar.autocapitalizationType = UITextAutocapitalizationTypeNone;
[self set_searchBar:tmpSearchBar];
[tmpSearchBar release];
self.navigationItem.titleView = [self _searchBar];
此代码按预期工作 - 我的UINavigationBar现在是UISearchBar。 但是,我的代表方法:
/** Only show the cancel button when the keyboard is displayed */
- (void) searchBarDidBeginEditing:(UISearchBar*) lclSearchBar
{
lclSearchBar.showsCancelButton = YES;
}
...不再被调用。我突出了,我已经确认UISearchBar的委托确实是自我的,视图控制器。奇怪的是,这个委托的方法仍然是所谓就好:
/** Run the search and resign the keyboard */
- (void) searchBarSearchButtonClicked:(UISearchBar *)lclSearchBar
{
_deepSearchRan = NO;
[self runSearchForString:[[self _searchBar] text] isSlowSearch:NO];
[lclSearchBar resignFirstResponder];
}
任何想法,为什么UINavigationBar的正在吞噬我的委托电话?我错过了什么?
答
我想你写错了方法签名。它应该是: - searchBarTextDidBeginEditing:
以下是用于文本编辑的所有UISearchBarDelegate方法。
– searchBar:textDidChange:
– searchBar:shouldChangeTextInRange:replacementText:
– searchBarShouldBeginEditing:
– searchBarTextDidBeginEditing:
– searchBarShouldEndEditing:
– searchBarTextDidEndEditing:
谢谢你,我需要第二双眼睛看到。应该再次检查UISearchBarDelegate协议!这解决了它。 – makdad 2010-06-13 09:08:39
这很正常。 XCode很难支持自动完成和检查。我也在委托和继承方面犯了同样的错误。我经常做viewWillAppear {}而不是viewWillAppear:(BOOL)动画 – vodkhang 2010-06-13 12:51:00