iOS开发--搜索功能

.m文件：

@interfaceRootViewController()<UISearchBarDelegate>

searchBar的位置和大小：

UISearchBar*searchBar1 = [[UISearchBaralloc]initWithFrame:CGRectMake(20,200,300,30)];

searchBar1.placeholder=@"请输入要搜索的内容";

[searchBar2setShowsCancelButton:YESanimated:YES];

searchBar1.delegate=self;

[self.viewaddSubview:searchBar1];

[searchBar1release];

-(void)searchBarTextDidBeginEditing:(UISearchBar*)searchBar

{//一点击搜索框,就执行这个方法

NSLog(@点击搜索框");

}

-(BOOL)searchBarShouldBeginEditing:(UISearchBar*)searchBar

{

[searchBarsetShowsCancelButton:YESanimated:YES];

[self.navigationControllersetNavigationBarHidden:YESanimated:YES];

returnYES;

}

//实现实时搜索的方法

-(void)searchBar:(UISearchBar*)searchBar textDidChange:(NSString*)searchText

{

NSLog(@"textDidChange：%@", searchBar.text);

}

//点击搜索按钮(这是点击搜索按钮之后再搜索)

-(void)searchBarSearchButtonClicked:(UISearchBar*)searchBar

{

NSLog(@"搜索按钮点击。。。");

NSLog(@"----%@", searchBar.text);

[searchBarresignFirstResponder];

}

//点击取消按钮(cancel)

-(void)searchBarCancelButtonClicked:(UISearchBar*)searchBar

{

NSLog(@"点击取消按钮。。。");

[selfsearchBar:searchBartextDidChange:nil];

[searchBarresignFirstResponder];

[searchBarsetShowsCancelButton:NOanimated:YES];

}