UITextInputTraits is not working in ios7 - ios

Question

I am new to ios. I have the following code to change the return key type of keyboard to join. It works fine in ios6 but not in ios7. The code inside the if-block is never executed on ios7.
Have anyone seen a similar issue? Is there any workaround for this?
if ([searchBarSubview conformsToProtocol:#protocol(UITextInputTraits)]) {
[searchBar resignFirstResponder];
[(UITextField *)searchBarSubview setReturnKeyType:UIReturnKeyJoin];
[searchBar becomeFirstResponder];
}
I googled and found that Join button isn't showing up because the internal structure of UISearchBar, which aren't supposed to modify, has changed. I dont konw how to fix this and where to found out what has changed, Anyone can explain ?
Also tried following(similar way) workaround code not lucky enough
for(UIView *searchBarSubview in [searchBar subviews]) {
if([searchBarSubview conformsToProtocol:#protocol(UITextInputTraits)]) {
[(UITextField *)searchBarSubview setReturnKeyType: UIReturnKeyJoin];
} else {
for(UIView *subSubView in [searchBarSubview subviews]) {
if([subSubView conformsToProtocol:#protocol(UITextInputTraits)]) {
[(UITextField *)subSubView setReturnKeyType: UIReturnKeyJoin];
}
}
}

Answer 1

Try this :
UITextField *searchBarTextField ;
NSArray *views = ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0f) ?
self.searchBar.subviews : [[self.searchBar.subviews
objectAtIndex:0] subviews];
for (UIView *subview in views)
{
if ([subview isKindOfClass:[UITextField class]])
{
searchBarTextField = (UITextField *)subview;
break;
}
}
searchBarTextField.returnKeyType = UIReturnKeyJoin;

Answer 2

try this for get textfield from searchbar
for (UIView *subView in self.searchBar.subviews){
for (UIView *searchView in subView.subviews){
if ([searchView isKindOfClass:[UITextField class]])
{
[(UITextField *)searchView setKeyboardAppearance:UIKeyboardAppearanceAlert];
[(UITextField *)searchView setEnablesReturnKeyAutomatically:NO];
break;
}
}
}