亲测UISearchBar Delegate的11个方法和UISearchDisplay Delegate的12个方法的调用顺序
UISearchBar所在的viewController（以下简称mainVC）的-(void)viewDidLoad方法中的代码如下：[superviewDidLoad];//searchBarself.searchBar=[[UISearchBaralloc]init];self.searchBar.frame=CGRectMake(0,0,self.view.frame.size.width