lldbのrecursiveDescriptionがめっちゃ便利です。 lldbでUIViewのsubviewを再帰的に確認できます。 (lldb) po [self.view recursiveDescription] <UIView: 0x113713260; frame = (0 0; 320 568); autoresize = RM+BM; layer = <CALayer: 0x10bca42f0>> | <_UILayoutGuide: 0x10bcac7d0; frame = (0 0; 0 0); hidden = YES; layer = <CALayer: 0x11370df90>> | <_UILayoutGuide: 0x10bcb0650; frame = (0 0; 0 0); hidden = YES; layer = <CALayer: 0x10bc257