ObjecTips

Swift & Objective-C で iOS とか macOS とか

Private なメソッド、プロパティ、インスタンス変数を調べる

Objective-C Tips Private API Runtime

クラスの Private なメソッド、プロパティ、インスタンス変数を調べるには Objective-C の Runtime API を使う。
メソッドは Method, プロパティは objc_property_t, インスタンス変数は Ivar 型で取得できる。

#import <objc/runtime.h>
で Runtime API を import してそれぞれ以下のように実装する。

これを使って例えば NSObject について調べる場合、以下のようにする。

    Class cls = [NSObject class];
    PrintMethodList(cls);
    PrintPropertyList(cls);
    PrintIvarList(cls);

出力結果は以下
ちょっとメソッドのリストが長いのでメソッド一覧は最後に記載。
見てみると Private なものでもアンダーバーが付いてないものもあれば、アンダーバーが3つも付いているものもあったりする。
他には CA_ みたいに Prefix+アンダーバー形式のものもあったりしておもしろい。

プロパティの出力結果

// Property List of NSObject
accessibilityElements
accessibilityCustomActions
isAccessibilityElement
accessibilityLabel
accessibilityHint
accessibilityValue
accessibilityTraits
accessibilityFrame
accessibilityPath
accessibilityActivationPoint
accessibilityLanguage
accessibilityElementsHidden
accessibilityViewIsModal
shouldGroupAccessibilityChildren
accessibilityNavigationStyle
traitStorageList
autoContentAccessingProxy
classForKeyedArchiver
observationInfo
hash
superclass
description
debugDescription

インスタンス変数の出力結果

// Ivar List of NSObject
isa

メソッドの出力結果

// Method List of UIView
className
_NSItemProviderTypeCoercion_coercedUIImageValueFromNSURLValue:error:
_NSItemProviderTypeCoercion_coercedUIImageValueFromNSDataValue:error:
defaultAccessibilityTraits
isAccessibilityElementByDefault
isElementAccessibilityExposedToInterfaceBuilder
_accessibilityFinalize
accessibilitySetIdentification:
accessibilityElements
setAccessibilityElements:
accessibilityElementCount
accessibilityElementAtIndex:
indexOfAccessibilityElement:
accessibilityIncrement
accessibilityDecrement
accessibilityScroll:
accessibilityPerformEscape
accessibilityPerformMagicTap
accessibilityActivate
setAccessibilityCustomActions:
accessibilityCustomActions
accessibilityElementDidBecomeFocused
accessibilityElementDidLoseFocus
accessibilityElementIsFocused
accessibilityIdentifier
accessibilityFrame
storedAccessibilityViewIsModal
storedAccessibilityElementsHidden
storedShouldGroupAccessibilityChildren
storedAccessibilityNavigationStyle
accessibilityHint
accessibilityActivationPoint
accessibilityTraits
accessibilityLanguage
accessibilityPath
accessibilityViewIsModal
accessibilityElementsHidden
shouldGroupAccessibilityChildren
accessibilityNavigationStyle
storedAccessibilityTraits
storedIsAccessibilityElement
storedAccessibilityFrame
storedAccessibilityActivationPoint
setAccessibilityElementsHidden:
setAccessibilityViewIsModal:
setAccessibilityHint:
setAccessibilityFrame:
setAccessibilityPath:
setAccessibilityActivationPoint:
setAccessibilityTraits:
setIsAccessibilityElement:
setAccessibilityContainer:
setAccessibilityLanguage:
setAccessibilityIdentifier:
setShouldGroupAccessibilityChildren:
setAccessibilityNavigationStyle:
setAccessibilityLabel:
accessibilityValue
setAccessibilityValue:
accessibilityLabel
isAccessibilityElement
accessibilityContainer
awakeFromNib
prepareForInterfaceBuilder
_connectInterfaceBuilderEventConnection:
_applyTraitStorageRecordsForTraitCollection:
_traitStorageList
_setTraitStorageList:
__ivarDescriptionForClass:
__methodDescriptionForClass:
_ivarDescription
_methodDescription
_shortMethodDescription
_webkit_invokeOnMainThread
postNotificationWithDescription:
okToNotifyFromThisThread
fromNotifySafeThreadPerformSelector:withObject:
allowSafePerformSelector
disallowSafePerformSelector
fromNotifySafeThreadPostNotificationName:object:userInfo:
fromMainThreadPostNotificationName:object:userInfo:
releaseOnMainThread
sbs_isPlistableType
encodeWithCAMLWriter:
CAMLTypeForKey:
CAMLType
CA_addValue:multipliedBy:
CA_interpolateValue:byFraction:
CA_roundToIntegerFromValue:
CA_distanceToValue:
CA_interpolateValues:::interpolator:
CA_copyRenderValue
CA_prepareRenderValue
bs_performSynchronously:timeout:
bs_isPlistableType
pep_onMainThread
pep_onThread:
pep_onThread:immediateForMatchingThread:
pep_onOperationQueue:priority:
pep_onMainThreadIfNecessary
pep_onDetachedThread
pep_afterDelay:
pep_onOperationQueue:
pep_getInvocation:
__im_afterDelay:
__im_afterDelay:modes:
__im_onThread:
__im_onThread:immediateForMatchingThread:
__im_onMainThread
__im_onMainThreadIfNecessary
__im_onDetachedThread
__im_getInvocation:
performSelector:withObject:afterDelay:ignoreMenuTracking:
isNull
classForPortCoder
replacementObjectForPortCoder:
_conformsToProtocolNamed:
methodDescriptionForSelector:
_localClassNameForClass
performSelector:onThread:withObject:waitUntilDone:modes:
performSelectorOnMainThread:withObject:waitUntilDone:
performSelectorInBackground:withObject:
performSelectorOnMainThread:withObject:waitUntilDone:modes:
performSelector:onThread:withObject:waitUntilDone:
performSelector:withObject:afterDelay:inModes:
performSelector:withObject:afterDelay:
performSelector:object:afterDelay:
autoContentAccessingProxy
classForCoder
replacementObjectForCoder:
awakeAfterUsingCoder:
_allowsDirectEncoding
implementsSelector:
classForKeyedArchiver
replacementObjectForKeyedArchiver:
_implicitObservationInfo
_changeValueForKey:key:key:usingBlock:
_notifyObserversForKeyPath:change:
_changeValueForKey:usingBlock:
_willChangeValuesForKeys:
_didChangeValuesForKeys:
observationInfo
setObservationInfo:
willChange:valuesAtIndexes:forKey:
didChange:valuesAtIndexes:forKey:
willChangeValueForKey:withSetMutation:usingObjects:
didChangeValueForKey:withSetMutation:usingObjects:
willChangeValueForKey:
didChangeValueForKey:
_addObserver:forProperty:options:context:
_removeObserver:forProperty:
addObserver:forKeyPath:options:context:
removeObserver:forKeyPath:
removeObserver:forKeyPath:context:
observeValueForKeyPath:ofObject:change:context:
_isKVOA
valueForUndefinedKey:
setValue:forUndefinedKey:
setNilValueForKey:
setValue:forKeyPath:
validateValue:forKeyPath:error:
validateValue:forKey:error:
mutableArrayValueForKeyPath:
mutableArrayValueForKey:
mutableOrderedSetValueForKeyPath:
mutableOrderedSetValueForKey:
mutableSetValueForKeyPath:
mutableSetValueForKey:
setValue:forKey:
valueForKey:
valueForKeyPath:
setValuesForKeysWithDictionary:
dictionaryWithValuesForKeys:
replacementObjectForArchiver:
classForArchiver
_cfTypeID
isNSValue__
isNSString__
isNSNumber__
isNSArray__
isNSDictionary__
isNSData__
isNSDate__
isNSOrderedSet__
isNSSet__
isNSTimeZone__
doesNotRecognizeSelector:
description
methodSignatureForSelector:
__dealloc_zombie
__retain_OA
__release_OA
__autorelease_OA
___tryRetain_OA
_copyDescription
zone
doesNotRecognizeSelector:
description
retain
release
autorelease
retainCount
dealloc
copy
finalize
forwardInvocation:
_tryRetain
_isDeallocating
retainWeakReference
allowsWeakReference
isKindOfClass:
mutableCopy
hash
isEqual:
respondsToSelector:
self
performSelector:
performSelector:withObject:
conformsToProtocol:
methodSignatureForSelector:
forwardingTargetForSelector:
methodForSelector:
performSelector:withObject:withObject:
isProxy
isMemberOfClass:
superclass
class
debugDescription
init
isFault