(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar; // return NO to not become first responder
(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{ // called when text starts editing
[searchBar setShowsCancelButton:YES animated:YES]; // 动画显示取消按钮
}
(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar; // return NO to not resign first responder
(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar; // called when text ends editing
(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{ // called when text changes (including clear)
@ 当搜索内容变化时，执行该方法。很有用，可以实现时实搜索
}
复制代码
(BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)textNS_AVAILABLE_IOS(3_0); // called before text changes
@按钮点击
(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar; // called when keyboard search button pressed
(void)searchBarBookmarkButtonClicked:(UISearchBar *)searchBar; // called when bookmark button pressed
(void)searchBarCancelButtonClicked:(UISearchBar *) searchBar{ // called when cancel button pressed
[searchBar setShowsCancelButton:NO animated:NO]; // 取消按钮回收
[searchBar resignFirstResponder]; // 取消第一响应值,键盘回收,搜索结束
}
(void)searchBarResultsListButtonClicked:(UISearchBar *)searchBarNS_AVAILABLE_IOS(3_2);// called when search results button pressed
