这里需要用到代理方法
- (void)searchBarTextDidBeginEditing:(UISearchBar *) searchBar
{
UITextField *searchBarTextField = nil;
NSArray *views = ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0) ? searchBar.subviews : [[searchBar.subviews objectAtIndex:0] subviews];
for (UIView *subview in views)
{
if ([subview isKindOfClass:[UITextField class]])
{
searchBarTextField = (UITextField *)subview;
break;
}
}
searchBarTextField.enablesReturnKeyAutomatically = NO;
}
