UItextField within UISearchbar failing after iOS 7 upgrade

Question

I have a UITextField for the UISearchBar which this was working until iOS 7 upgrade and now it fails at this line: UITextField *textfield=(UITextField*)[[searchBar sub

Answer 1

It's not a good idea to assume that second searchBar's subview will be UITextField.

I printed out subviews for UISearchBar, that's what I got on iOS 7:

<__NSArrayM 0x17d141f0>(
>
)

Only one subview, so your ... objectAtIndex:1] will definitely crash.

You can use the following category for UIView to find UITextField in your searchBar:

@interface UIView(Utils)

-(UIView*)findSubviewRecursivelyOfClass:(Class)subviewClass;

@end

@implementation UIView(Utils)

-(UIView*)findSubviewRecursivelyOfClass:(Class)subviewClass
{
  if( [self isKindOfClass:subviewClass] ) {
    return self;
  } else {
    for( UIView* child in self.subviews ) {
      UIView* result = [child findSubviewRecursivelyOfClass:subviewClass];
      if( result ) {
        return result;
      }
    }
    return nil;
  }
}

@end