Prints the hierarchy of elements in a data structure (NSDictionary, NSArray and UIView).

gistfile1.m

static int depth = 0;
+ (void) traverseAndPrintDataStructure:(id)object
{
    NSMutableString* indent = [NSMutableString string];
    for (int i = 0; i < depth; i++)
    {
        [indent appendString:@"\t"];
    }
    
    if ([object isKindOfClass:[NSArray class]])
    {
        NSLog(@"%@<Array>", indent);
        for (id value in object)
        {
            depth++;
            [MDHelper traverseAndPrintDataStructure:value];
            depth--;
        }
        NSLog(@"%@</Array>", indent);
    }
    else if ([object isKindOfClass:[NSDictionary class]])
    {
        NSLog(@"%@<Dict>", indent);
        for (id key in [object allKeys])
        {
            NSLog(@"%@\"%@\":", indent, key);
            id value = [object objectForKey:key];
            depth++;
            [MDHelper traverseAndPrintDataStructure:value];
            depth--;
        }
        NSLog(@"%@</Dict>", indent);
    }
    else if ([object isKindOfClass:[UIView class]] && ((UIView*)object).subviews.count > 0)
    {
        NSLog(@"%@<View: %@>", indent, NSStringFromClass([object class]));
        for (id value in ((UIView*)object).subviews)
        {
            depth++;
            [MDHelper traverseAndPrintDataStructure:value];
            depth--;
        }
        NSLog(@"%@</View>", indent);
    }
    else
    {
        NSLog(@"%@| (%@) %@", indent, NSStringFromClass([object class]), object);
    }
}