修改UISearchBar 取消按钮

SearchBar包含的类：
UISearchBarBackground
UISearchBarTextField
UINavigationButton
可以遍历 之后修改对应内容
in ios7

for(id cc in [[searchBar subviews][0] subviews])
{
NSLog(@"%@",[cc class]);
if([cc isKindOfClass:[UIButton class]])
{
UIButton *btn = (UIButton *)cc;
[btn setTitle:@"取消" forState:UIControlStateNormal];
}
}

in ios6

for(id cc in [searchBar subviews])
{
NSLog(@"%@",[cc class]);
if([cc isKindOfClass:[UIButton class]])
{
UIButton *btn = (UIButton *)cc;
[btn setTitle:@"取消" forState:UIControlStateNormal];
}
}