Lists views recursively with indentation for subviews

listSubviewsOfView.m

- (void)listSubviewsOfView:(UIView *)view {
    [self listSubviewsOfView:(UIView *)view withPrefix:@""];
}
- (void)listSubviewsOfView:(UIView *)view withPrefix:(NSString *)prefix {
    NSArray *subviews = [view subviews];
    for (UIView *subview in subviews) {
        NSLog(@"%@ %@ (%d %d; %d %d)", prefix, subview.class
              , (int)subview.frame.origin.x
              , (int)subview.frame.origin.y
              , (int)subview.frame.size.width
              , (int)subview.frame.size.height);
        [self listSubviewsOfView:subview withPrefix:[NSString stringWithFormat:@"%@    ", prefix]];
    }
}

nice