搜索框UISearchBar

1\初始化

UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(10, 20, 200, 30)];

[self.view addSubview:searchBar];

searchBar.delegate = self;

2\实现代理方法

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {

NSLog(@"开始编辑");

[self presentViewController:[[redViewController alloc] init] animated:YES completion:nil];

return YES;

}

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

NSLog(@"改变了");

}