iOS

iOSデバッグ時に有用なメソッド

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メソッド 説明
-[NSObject _ivarDescription] インスタンス変数をすべて表示
-[NSObject _shortMethodDescription] オブジェクトのメソッドをすべて表示
-[NSObject _methodDescription] オブジェクトのメソッドをすべて表示(スーパークラス含む)
-[UIView recursiveDescription] Viewの構造表示
-[UIView _autolayoutTrace] ViewのAutoLayout関連情報表示
-[UIViewController _printHierarchy] ViewControllerの構造表示

使用例

  • -[NSObject _ivarDescription]
(lldb) po [self _ivarDescription]
<DetailViewController: 0x7fc94b637db0>:
in DetailViewController:
in UIViewController:
    _view (UIView*): <UIView: 0x7fc94b63c360>
    _tabBarItem (UITabBarItem*): nil
    _navigationItem (UINavigationItem*): <UINavigationItem: 0x7fc94b63ae20>
    _toolbarItems (NSArray*): nil
    _title (NSString*): nil
    _nibName (NSString*): @"jAO-Jw-mTY-view-IBP-J8-Ec0"<__NSCFString: 0x7fc94b6380e0>
    _nibBundle (NSBundle*): <NSBundle: 0x7fc94b61bc40>
    _parentViewController (UIViewController*): <UINavigationController: 0x7fc94b71dbc0>
    _childModalViewController (UIViewController*): nil
    _parentModalViewController (UIViewController*): nil
    _previousRootViewController (UIViewController*): nil
    _modalTransitionView (UIView*): nil
    _modalPreservedFirstResponder (UIResponder*): nil
    _dimmingView (id): nil
    _dropShadowView (id): nil
    _currentAction (id): nil
    _storyboard (UIStoryboard*): <UIStoryboard: 0x7fc94b716f50>
    _storyboardSegueTemplates (NSArray*): nil
    _externalObjectsTableForViewLoading (NSDictionary*): <__NSCFDictionary: 0x7fc94b6380a0>
    _topLevelObjectsToKeepAliveFromStoryboard (NSArray*): nil
    _savedHeaderSuperview (UIView*): nil
    _savedFooterSuperview (UIView*): nil
    _editButtonItem (UIBarButtonItem*): nil
    _searchDisplayController (UISearchDisplayController*): nil
    _modalTransitionStyle (long): <00000000 00000000>
    _modalPresentationStyle (long): <00000000 00000000>
    _lastKnownInterfaceOrientation (long): <00000000 00000000>
    _popoverController (UIPopoverController*): nil
    _containerViewInSheet (UIView*): nil
    _contentSizeForViewInPopover (CGSize): {0, 0}
    _formSheetSize (CGSize): {540, 620}
    _recordedContentScrollView (UIScrollView*): nil
    _afterAppearance (unknown type)
    _explicitAppearanceTransitionLevel (long): <00000000 00000000>
    _keyCommands (NSArray*): nil
    _overrideTraitCollections (NSMapTable*): nil
    _viewControllerFlags (unknown type)
    _retainCount (long): <00000000 00000000>
    _ignoreAppSupportedOrientations (BOOL): <00>
    _viewHostsLayoutEngine (BOOL): <00>
    _storyboardIdentifier (NSString*): @"UIViewController-jAO-Jw-mTY"<__NSCFString: 0x7fc94b71d800>
    _transitioningDelegate (<UIViewControllerTransitioningDelegate>*): nil
    _modalPresentationCapturesStatusBarAppearance (BOOL): <00>
    _childViewControllers (NSMutableArray*): nil
    _customNavigationInteractiveTransitionDuration (double): 0
    _customNavigationInteractiveTransitionPercentComplete (double): 0
    _customTransitioningView (UITransitionView*): nil
    _lastNotifiedTraitCollection (UITraitCollection*): <UITraitCollection: 0x7fc94b48a440>
    _presentationController (UIPresentationController*): nil
    _navigationControllerContentOffsetAdjustment (double): 0
    _contentMargin (double): 16
    _topLayoutGuide (_UILayoutGuide*): <_UILayoutGuide: 0x7fc94b63d3e0>
    _bottomLayoutGuide (_UILayoutGuide*): <_UILayoutGuide: 0x7fc94b63d6c0>
    _topBarInsetGuideConstraint (NSLayoutConstraint*): <_UILayoutSupportConstraint: 0x7fc94b63cc20>
    _bottomBarInsetGuideConstraint (NSLayoutConstraint*): <_UILayoutSupportConstraint: 0x7fc94b63a950>
    _leftLayoutGuide (_UILayoutGuide*): nil
    _rightLayoutGuide (_UILayoutGuide*): nil
    _leftMarginGuideConstraint (NSLayoutConstraint*): nil
    _rightMarginGuideConstraint (NSLayoutConstraint*): nil
    _sourceViewControllerIfPresentedViaPopoverSegue (UIViewController*): nil
    _modalSourceViewController (UIViewController*): nil
    _presentedStatusBarViewController (UIViewController*): nil
    _edgesForExtendedLayout (unsigned long): <0f000000 00000000>
    __embeddedView (UIView*): nil
    __embeddingView (UIView*): nil
    __embeddedDelegate (<_UIViewControllerContentViewEmbedding>*): nil
    _originalPresentationController (UIPresentationController*): nil
    _temporaryPresentationController (UIPresentationController*): nil
    __childControllerToIgnoreWhileLookingForTransitionCoordinator (UIViewController*): nil
    _preferredContentSize (CGSize): {0, 0}
    _presentationSizeClassPair (unknown type)
    _navigationControllerContentInsetAdjustment (UIEdgeInsets): {0, 0, 0, 0}
    _contentOverlayInsets (UIEdgeInsets): {64, 16, 0, 16}
    __embeddedViewFrame (CGRect): {{0, 0}, {0, 0}}
in UIResponder:
in NSObject:
    isa (Class): DetailViewController (isa, 0x10e2cbd90)
  • -[NSObject _shortMethodDescription]
(lldb) po [self _shortMethodDescription]
<DetailViewController: 0x7fc94b637db0>:
in DetailViewController:
    Instance Methods:
        - (void) PrintDebugLog:(id)arg1; (0x10e2c9df0)
        - (void) didReceiveMemoryWarning; (0x10e2c9db0)
        - (void) viewDidLoad; (0x10e2c9d70)
(UIViewController ...)
  • -[NSObject _methodDescription]
(lldb) po [self _methodDescription]
<DetailViewController: 0x7fc94b637db0>:
in DetailViewController:
    Instance Methods:
        - (void) PrintDebugLog:(id)arg1; (0x10e2c9df0)
        - (void) didReceiveMemoryWarning; (0x10e2c9db0)
        - (void) viewDidLoad; (0x10e2c9d70)
in UIViewController:
    Class Methods:
        + (void) initialize; (0x10f0859c2)
        + (id) _currentStatusBarStyleViewController; (0x10f0a2630)
        + (id) _currentStatusBarHiddenViewController; (0x10f0a2671)
        + (void) _performWithoutDeferringTransitions:(^block)arg1; (0x10f096163)
        + (void) _traverseViewControllerHierarchyWithDelayedRelease:(^block)arg1; (0x10f0919d0)
        + (id) viewControllerForView:(id)arg1; (0x10f091287)
        + (id) _viewControllerForFullScreenPresentationFromView:(id)arg1; (0x10f09d2ad)
        + (BOOL) _allViewControllersInArray:(id)arg1 allowAutorotationToInterfaceOrientation:(long)arg2 predicate:(^block)arg3; (0x10f09f5ec)
        + (double) _slimHorizontalContentMargin; (0x10f08563f)
        + (BOOL) _preventsAppearanceProxyCustomization; (0x10f0899e3)
        + (double) durationForTransition:(int)arg1; (0x10f09d79c)
        + (double) _standardHorizontalContentMargin; (0x10f0855cc)
        + (void) _scheduleTransition:(^block)arg1; (0x10f0961f9)
        + (id) _traitCollectionWithParentTraitCollection:(id)arg1 overrideTraitCollection:(id)arg2; (0x10f08a14b)
        + (BOOL) _directlySetsContentOverlayInsetsForChildren; (0x10f0849c0)
        + (BOOL) doesOverrideViewControllerMethod:(SEL)arg1 inBaseClass:(Class)arg2; (0x10f085c23)
        + (CGSize) defaultFormSheetSize; (0x10f08612a)
        + (BOOL) doesOverrideSupportedInterfaceOrientations; (0x10f085cec)
        + (BOOL) _isNestedViewControllerSupportDisabled; (0x10f085bbb)
        + (BOOL) _synthesizeSupportedInterfaceOrientationsFromShouldAutorotateToInterfaceOrientation; (0x10f086c62)
        + (BOOL) _frameIsNotResizedForDoubleHeightStatusBarChanges:(id)arg1; (0x10f087463)
        + (void) setViewController:(id)arg1 forView:(id)arg2; (0x10f0912d9)
        + (id) existingNibNameMatchingClassName:(id)arg1 bundle:(id)arg2; (0x10f08a80f)
        + (BOOL) _doesOverrideLegacyFullScreenLayout; (0x10f0929dd)
        + (BOOL) _isViewSizeFullScreen:(id)arg1 inWindow:(id)arg2 ignoreInWindowCheck:(BOOL)arg3; (0x10f0929e5)
        + (BOOL) doesOverrideViewControllerMethod:(SEL)arg1; (0x10f085c5a)
        + (BOOL) _shouldUseRootViewControllerAutopromotion; (0x10f085a1c)
        + (void) _traverseViewControllerHierarchyWithDelayedReleaseArray:(const void**)arg1 block:(^block)arg2; (0x10f09161c)
        + (void) _traverseViewControllerHierarchy:(^block)arg1; (0x10f091acf)
        + (id) _printHierarchy; (0x10f0920a7)
        + (BOOL) _shouldUseLegacyModalViewControllers; (0x10f085bef)
        + (BOOL) _isViewSizeFullScreen:(id)arg1 inWindow:(id)arg2; (0x10f093280)
        + (int) _keyboardDirectionForTransition:(int)arg1; (0x10f08d1e3)
        + (BOOL) _shouldDeferTransitions; (0x10f096157)
        + (void) _setShouldDeferTransitions:(BOOL)arg1; (0x10f09614b)
        + (BOOL) _shouldSendLegacyMethodsFromViewWillTransitionToSize; (0x10f09d998)
        + (BOOL) _shouldForwardViewWillTransitionToSize; (0x10f09e301)
        + (BOOL) doesOverridePreferredInterfaceOrientationForPresentation; (0x10f085ca1)
        + (BOOL) _doesOverrideLegacyShouldAutorotateMethod; (0x10f09ebcf)
        + (void) _forceLegacyModalViewControllers:(BOOL)arg1; (0x10f085ba3)
        + (void) _disableNestedViewControllerSupport:(BOOL)arg1; (0x10f085baf)
        + (void) removeViewControllerForView:(id)arg1; (0x10f09129c)
        + (id) _allDescriptions; (0x10f091d43)
        + (BOOL) _optsOutOfPopoverControllerHierarchyCheck; (0x10f0939e9)
        + (void) _setShouldUseLegacyPresentations:(BOOL)arg1; (0x10f096145)
        + (void) setCustomTransitionDuration:(double)arg1; (0x10f09d750)
        + (double) customTransitionDuration; (0x10f09d75e)
        + (void) attemptRotationToDeviceOrientation; (0x10f09ebe8)
        + (id) _exportedInterface; (0x10f563e91)
        + (id) _remoteViewControllerInterface; (0x10f563e89)
        + (id) XPCInterface; (0x10f564033)
        + (BOOL) _isSecureForRemoteViewService; (0x10f563e03)
        + (BOOL) _initializedByViewServices; (0x10f5b860b)
    Properties:
        @property (retain, nonatomic) UITabBarItem* tabBarItem;
        @property (readonly, retain, nonatomic) UITabBarController* tabBarController;
        @property (readonly, retain, nonatomic) UISplitViewController* splitViewController;
        @property (readonly, retain, nonatomic) UINavigationItem* navigationItem;
        @property (nonatomic) BOOL hidesBottomBarWhenPushed;
        @property (readonly, retain, nonatomic) UINavigationController* navigationController;
        @property (readonly, nonatomic) NSArray* childViewControllers;
        @property (readonly, nonatomic) UIView* _embeddedView;  (@dynamic _embeddedView;)
        @property (readonly, nonatomic) <_UIViewControllerContentViewEmbedding>* _embeddedDelegate;  (@dynamic _embeddedDelegate;)
        @property (nonatomic) CGSize preferedContentSizeInModalItem;  (@dynamic preferedContentSizeInModalItem;)
        @property (readonly) unsigned long hash;
        @property (readonly) Class superclass;
        @property (readonly, copy) NSString* description;
        @property (readonly, copy) NSString* debugDescription;
        @property (readonly, retain, nonatomic) NSExtensionContext* extensionContext;  (@dynamic extensionContext;)
        @property (readonly) unsigned long hash;
        @property (readonly) Class superclass;
        @property (readonly, copy) NSString* description;
        @property (readonly, copy) NSString* debugDescription;
        @property (retain, nonatomic) UIView* view;
        @property (copy, nonatomic) NSString* nibName;  (@synthesize nibName = _nibName;)
        @property (retain, nonatomic) NSBundle* nibBundle;  (@synthesize nibBundle = _nibBundle;)
        @property (retain, nonatomic) UIStoryboard* storyboard;  (@synthesize storyboard = _storyboard;)
        @property (copy, nonatomic) NSString* title;  (@synthesize title = _title;)
        @property (nonatomic) UIViewController* parentViewController;
        @property (readonly, nonatomic) UIViewController* modalViewController;
        @property (readonly, nonatomic) UIViewController* presentedViewController;
        @property (readonly, nonatomic) UIViewController* presentingViewController;
        @property (nonatomic) BOOL definesPresentationContext;
        @property (nonatomic) BOOL providesPresentationContextTransitionStyle;
        @property (nonatomic) long modalTransitionStyle;  (@synthesize modalTransitionStyle = _modalTransitionStyle;)
        @property (nonatomic) long modalPresentationStyle;  (@synthesize modalPresentationStyle = _modalPresentationStyle;)
        @property (nonatomic) BOOL modalPresentationCapturesStatusBarAppearance;  (@synthesize modalPresentationCapturesStatusBarAppearance = _modalPresentationCapturesStatusBarAppearance;)
        @property (nonatomic) BOOL wantsFullScreenLayout;
        @property (nonatomic) unsigned long edgesForExtendedLayout;  (@synthesize edgesForExtendedLayout = _edgesForExtendedLayout;)
        @property (nonatomic) BOOL extendedLayoutIncludesOpaqueBars;
        @property (nonatomic) BOOL automaticallyAdjustsScrollViewInsets;
        @property (nonatomic) CGSize preferredContentSize;  (@synthesize preferredContentSize = _preferredContentSize;)
        @property (readonly, nonatomic) NSArray* storyboardSegueTemplates;  (@synthesize storyboardSegueTemplates = _storyboardSegueTemplates;)
        @property (nonatomic, setter=_setSourceViewControllerIfPresentedViaPopoverSegue:) UIViewController* _sourceViewControllerIfPresentedViaPopoverSegue;  (@synthesize _sourceViewControllerIfPresentedViaPopoverSegue = _sourceViewControllerIfPresentedViaPopoverSegue;)
        @property (nonatomic, setter=_setModalSourceViewController:) UIViewController* _modalSourceViewController;  (@synthesize _modalSourceViewController = _modalSourceViewController;)
        @property (retain, nonatomic) UITransitionView* modalTransitionView;
        @property (readonly, nonatomic) UIViewController* _parentViewController;
        @property (readonly, nonatomic) UIViewController* _parentModalViewController;
        @property (nonatomic) NSMutableArray* mutableChildViewControllers;  (@synthesize mutableChildViewControllers = _childViewControllers;)
        @property (readonly, nonatomic) unsigned long childViewControllersCount;
        @property (retain, nonatomic, setter=_setEmbeddedView:) UIView* _embeddedView;  (@synthesize _embeddedView = __embeddedView;)
        @property (retain, nonatomic, setter=_setEmbeddingView:) UIView* _embeddingView;  (@synthesize _embeddingView = __embeddingView;)
        @property (nonatomic, setter=_setEmbeddedViewFrame:) CGRect _embeddedViewFrame;  (@synthesize _embeddedViewFrame = __embeddedViewFrame;)
        @property (nonatomic, setter=_setEmbeddedDelegate:) <_UIViewControllerContentViewEmbedding>* _embeddedDelegate;  (@synthesize _embeddedDelegate = __embeddedDelegate;)
        @property (retain, nonatomic, setter=_setLastNotifiedTraitCollection:) UITraitCollection* _lastNotifiedTraitCollection;  (@synthesize _lastNotifiedTraitCollection = _lastNotifiedTraitCollection;)
        @property (readonly, nonatomic) long _horizontalSizeClass;
        @property (readonly, nonatomic) long _verticalSizeClass;
        @property (readonly, nonatomic) ? __sizeClassPair;
        @property (readonly, nonatomic) UIView* savedHeaderSuperview;  (@synthesize savedHeaderSuperview = _savedHeaderSuperview;)
        @property (retain, nonatomic) UIViewController* childModalViewController;
        @property (nonatomic) UIViewController* parentModalViewController;  (@synthesize parentModalViewController = _parentModalViewController;)
        @property (retain, nonatomic) UISearchDisplayController* searchDisplayController;  (@dynamic searchDisplayController;)
        @property (nonatomic) BOOL searchBarHidNavBar;
        @property (retain, nonatomic) UIDropShadowView* dropShadowView;  (@synthesize dropShadowView = _dropShadowView;)
        @property (readonly, nonatomic) BOOL _isModalSheet;
        @property (readonly, nonatomic) BOOL _isPresentedFormSheet;
        @property (readonly, nonatomic) BOOL _isInSheetPresentation;
        @property (retain, nonatomic, setter=_setPresentationController:) UIPresentationController* _presentationController;  (@synthesize _presentationController = _presentationController;)
        @property (nonatomic, getter=_presentationSizeClassPair, setter=_setPresentationSizeClassPair:) ? presentationSizeClassPair;  (@synthesize presentationSizeClassPair = _presentationSizeClassPair;)
        @property (retain, nonatomic, getter=_originalPresentationController, setter=_setOriginalPresentationController:) UIPresentationController* originalPresentationController;  (@synthesize originalPresentationController = _originalPresentationController;)
        @property (retain, nonatomic, getter=_temporaryPresentationController, setter=_setTemporaryPresentationController:) UIPresentationController* temporaryPresentationController;  (@synthesize temporaryPresentationController = _temporaryPresentationController;)
        @property (readonly, nonatomic) BOOL _useSheetRotation;
        @property (readonly, nonatomic) BOOL _isDimmingBackground;
        @property (readonly, nonatomic) BOOL isSettingAppearState;
        @property (copy, nonatomic) ^block afterAppearanceBlock;  (@synthesize afterAppearanceBlock = _afterAppearance;)
        @property (nonatomic) CGSize contentSizeForViewInPopover;  (@synthesize contentSizeForViewInPopover = _contentSizeForViewInPopover;)
        @property (nonatomic) BOOL modalInPopover;
        @property (nonatomic, getter=isInWillRotateCallback) BOOL inWillRotateCallback;
        @property (nonatomic, getter=isInAnimatedVCTransition) BOOL inAnimatedVCTransition;
        @property (readonly, nonatomic) BOOL inExplicitAppearanceTransition;
        @property (nonatomic) BOOL appearanceTransitionsAreDisabled;
        @property (nonatomic) BOOL disableRootPromotion;
        @property (nonatomic) BOOL needsDidMoveCleanup;
        @property (nonatomic, getter=isFinishingModalTransition) BOOL finishingModalTransition;
        @property (nonatomic) double customNavigationInteractiveTransitionDuration;  (@synthesize customNavigationInteractiveTransitionDuration = _customNavigationInteractiveTransitionDuration;)
        @property (nonatomic) double customNavigationInteractiveTransitionPercentComplete;  (@synthesize customNavigationInteractiveTransitionPercentComplete = _customNavigationInteractiveTransitionPercentComplete;)
        @property (retain, nonatomic) UITransitionView* customTransitioningView;  (@synthesize customTransitioningView = _customTransitioningView;)
        @property (readonly, nonatomic, getter=_window) UIWindow* window;
        @property (readonly, nonatomic) BOOL _monitorsSystemLayoutFittingSize;
        @property (retain, nonatomic, setter=_setPreviousFittingSizeInfo:) NSDictionary* _previousFittingSizeInfo;
        @property (nonatomic, setter=_setNavigationControllerContentInsetAdjustment:) UIEdgeInsets _navigationControllerContentInsetAdjustment;  (@synthesize _navigationControllerContentInsetAdjustment = _navigationControllerContentInsetAdjustment;)
        @property (nonatomic, setter=_setNavigationControllerContentOffsetAdjustment:) double _navigationControllerContentOffsetAdjustment;  (@synthesize _navigationControllerContentOffsetAdjustment = _navigationControllerContentOffsetAdjustment;)
        @property (nonatomic, setter=_setContentOverlayInsets:) UIEdgeInsets _contentOverlayInsets;  (@synthesize _contentOverlayInsets = _contentOverlayInsets;)
        @property (nonatomic, setter=_setContentMargin:) double _contentMargin;  (@synthesize _contentMargin = _contentMargin;)
        @property (retain, nonatomic, setter=_setPresentedStatusBarViewController:) UIViewController* _presentedStatusBarViewController;  (@synthesize _presentedStatusBarViewController = _presentedStatusBarViewController;)
        @property (readonly, retain, nonatomic) _UILayoutGuide* topLayoutGuide;  (@synthesize topLayoutGuide = _topLayoutGuide;)
        @property (readonly, retain, nonatomic) _UILayoutGuide* bottomLayoutGuide;  (@synthesize bottomLayoutGuide = _bottomLayoutGuide;)
        @property (readonly, retain, nonatomic) _UILayoutGuide* _leftLayoutGuide;  (@synthesize _leftLayoutGuide = _leftLayoutGuide;)
        @property (readonly, retain, nonatomic) _UILayoutGuide* _rightLayoutGuide;  (@synthesize _rightLayoutGuide = _rightLayoutGuide;)
        @property (readonly, retain, nonatomic) NSLayoutConstraint* _topBarInsetGuideConstraint;  (@synthesize _topBarInsetGuideConstraint = _topBarInsetGuideConstraint;)
        @property (readonly, retain, nonatomic) NSLayoutConstraint* _bottomBarInsetGuideConstraint;  (@synthesize _bottomBarInsetGuideConstraint = _bottomBarInsetGuideConstraint;)
        @property (readonly, retain, nonatomic) NSLayoutConstraint* _leftMarginGuideConstraint;  (@synthesize _leftMarginGuideConstraint = _leftMarginGuideConstraint;)
        @property (readonly, retain, nonatomic) NSLayoutConstraint* _rightMarginGuideConstraint;  (@synthesize _rightMarginGuideConstraint = _rightMarginGuideConstraint;)
        @property (retain, nonatomic, setter=_setExtensionContext:) NSExtensionContext* extensionContext;  (@dynamic extensionContext;)
        @property (retain, nonatomic, setter=_setChildControllerToIgnoreWhileLookingForTransitionCoordinator:) UIViewController* _childControllerToIgnoreWhileLookingForTransitionCoordinator;  (@synthesize _childControllerToIgnoreWhileLookingForTransitionCoordinator = __childControllerToIgnoreWhileLookingForTransitionCoordinator;)
        @property (readonly) unsigned long hash;
        @property (readonly) Class superclass;
        @property (readonly, copy) NSString* description;
        @property (readonly, copy) NSString* debugDescription;
        @property (readonly, nonatomic) UITraitCollection* traitCollection;
        @property (readonly, nonatomic) <UIFocusContainer>* preferredFocusedItem;
        @property (readonly, nonatomic) UIView* focusedView;
    Instance Methods:
        - (^block) _completionBlock; (0x10f09382b)
        - (id) retain; (0x10f085d37)
        - (oneway void) release; (0x10f085d5a)
        - (unsigned long) retainCount; (0x10f085dd7)
        - (void) dealloc; (0x10f088c75)
        - (BOOL) _tryRetain; (0x10f085def)
        - (BOOL) _isDeallocating; (0x10f085e2a)
        - (id) invalidate; (0x10f563f3f)
        - (id) _screen; (0x10f0a27c1)
        - (void) _setInCustomTransition:(BOOL)arg1; (0x10f086d57)
        - (BOOL) isViewLoaded; (0x10f08ba00)
        - (id) searchDisplayController; (0x10f0a2800)
        - (id) navigationItem; (0x10f0a38f2)
        - (void) applicationWillSuspend; (0x10f09273c)
        - (BOOL) _tryBecomeRootViewControllerInWindow:(id)arg1; (0x10f08fc15)
        - (id) _preferredStatusBarStyleAnimationParameters; (0x10f0a2598)
        - (id) _preferredStatusBarHideAnimationParameters; (0x10f0a25a0)
        - (long) preferredStatusBarStyle; (0x10f0a252f)
以下省略
  • -[UIView recursiveDescription]
(lldb) po [self.view recursiveDescription]
<UIView: 0x7fc94b63c360; frame = (0 0; 375 667); autoresize = W+H; layer = <CALayer: 0x7fc94b63c340>>
   | <UIView: 0x7fc94b63c470; frame = (0 0; 375 667); autoresize = RM+BM; layer = <CALayer: 0x7fc94b63c580>>
   |    | <UILabel: 0x7fc94b63c5a0; frame = (166.5 110; 42 20.5); text = 'Label'; opaque = NO; autoresize = RM+BM; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x7fc94b63c9d0>>
   |    | <UIButton: 0x7fc94b63b7c0; frame = (164.5 318.5; 46 30); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x7fc94b63a930>>
   |    |    | <UIButtonLabel: 0x7fc94b647df0; frame = (0 6; 46 18); text = 'Button'; alpha = 0.2; opaque = NO; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x7fc94b646690>>
   | <_UILayoutGuide: 0x7fc94b63d3e0; frame = (0 0; 0 64); hidden = YES; layer = <CALayer: 0x7fc94b63ae00>>
   | <_UILayoutGuide: 0x7fc94b63d6c0; frame = (0 667; 0 0); hidden = YES; layer = <CALayer: 0x7fc94b63ac30>>
  • -[UIView _autolayoutTrace]
(lldb) po [self.view _autolayoutTrace]

UIWindow:0x7fc94b735440
|   UILayoutContainerView:0x7fc94b469c40
|   |   UINavigationTransitionView:0x7fc94b477530
|   |   |   UIViewControllerWrapperView:0x7fc94b48e3c0
|   |   |   |   •UIView:0x7fc94b63c360
|   |   |   |   |   *UIView:0x7fc94b63c470
|   |   |   |   |   |   *UILabel:0x7fc94b63c5a0'Label'
|   |   |   |   |   |   *UIButton:0x7fc94b63b7c0'Button'
|   |   |   |   |   |   |   UIButtonLabel:0x7fc94b647df0'Button'
|   |   |   |   |   *_UILayoutGuide:0x7fc94b63d3e0
|   |   |   |   |   *_UILayoutGuide:0x7fc94b63d6c0
|   |   UINavigationBar:0x7fc94b72bbe0
|   |   |   _UINavigationBarBackground:0x7fc94b7357e0
|   |   |   |   _UIBackdropView:0x7fc94b4817d0
|   |   |   |   |   _UIBackdropEffectView:0x7fc94b486150
|   |   |   |   |   UIView:0x7fc94b487700
|   |   |   |   UIImageView:0x7fc94b735ee0
|   |   |   UINavigationItemButtonView:0x7fc94b629c30'Back'
|   |   |   |   UILabel:0x7fc94b63bbe0'Back'
|   |   |   _UINavigationBarBackIndicatorView:0x7fc94b4768c0
  • -[UIViewController _printHierarchy]
(lldb) po [self.navigationController _printHierarchy]
<UINavigationController 0x7fc94b71dbc0>, state: appeared, view: <UILayoutContainerView 0x7fc94b469c40>
   | <ViewController 0x7fc94b71e090>, state: disappeared, view: <UIView 0x7fc94b48cf00> not in the window
   | <DetailViewController 0x7fc94b637db0>, state: appeared, view: <UIView 0x7fc94b63c360>

参考
http://lithium3141.com/resources/2014/12/debugging-cheat-sheet.pdf
http://bou.io/ExtendedTypeInfoInObjC.html