This is a convenience function to recursively run code on subviews of specified class types. It's untested, so please just use as a basis for something likely better, perhaps that includes IndexPath counting, etc.

SelectiveSubviews.m

/*
  Example use:
  
    // Return all labels of the cell
    NSMutableArray *labels = [Utility ApplyToSubviews:cell limitedToClass:[UILabel class] usingBlock:^(id obj) {
        UILabel *label = (UILabel *)obj;
        label.text = @"Changed text";
    } recursively:YES];
*/


/*************************************************************
 Pass nil as LimitingClass if objects of all class types
 should be included.
 Pass nil as blockToApply to not run a block.
**************************************************************/
+ (NSMutableArray *)ApplyToSubviews:(UIView *)superview
                     limitedToClass:(Class)LimitingClass
                         usingBlock:(void (^)(id obj))blockToApply
                        recursively:(BOOL)isRecursive
{
    return [Utility RecursiveApplyToSubviews:superview
                              limitedToClass:LimitingClass
                                  usingBlock:blockToApply
                          withCurrentObjects:[NSMutableArray arrayWithCapacity:0]
                                 recursively:isRecursive];
}






+ (NSMutableArray *)RecursiveApplyToSubviews:(UIView *)superview
                              limitedToClass:LimitingClass
                                  usingBlock:(void (^)(id))blockToApply
                          withCurrentObjects:(NSMutableArray *)currentObjectsOfClass
                                 recursively:(BOOL)isRecursive
{
    NSArray *subviews = superview.subviews;
    if (![subviews count]) {
        return currentObjectsOfClass;
    }
    
    NSMutableArray *objectsOfClass = [NSMutableArray arrayWithCapacity:0];
    
    [subviews enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        if (LimitingClass == nil ||
            [obj isKindOfClass:[LimitingClass class]]) {
            [objectsOfClass addObject:obj];
            if (blockToApply) {
                blockToApply(obj);   // apply block to object
            }
        }
        if (isRecursive && [obj isKindOfClass:[UIView class]]) {
            NSMutableArray *newObjects = [Utility RecursiveApplyToSubviews:((UIView *)obj) limitedToClass:LimitingClass usingBlock:blockToApply withCurrentObjects:currentObjectsOfClass recursively:isRecursive];
            [objectsOfClass addObjectsFromArray:newObjects];
        }
    }];
    
    return objectsOfClass;
}