'- [UITextView autocapitalizationType]: непризнанный селектор, отправленный в экземпляр?

Question

Я хотел бы создать пользовательские подклассы (SubCustomView) из uiview при нажатии кнопки и добавить класс uitextview на SubCustomView в качестве подзаголовка. когда я запускаю uitextview, я использую метод initWithFrame:textContainer:. когда я использовал этот метод, проект разбился. Когда я использую метод initWithFrame:, проект не разбился. Я использую следующий код:

textContainer1 = [[NSTextContainer alloc] initWithSize:CGSizeMake(2, CGFLOAT_MAX)]; 

     stringTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height) textContainer:textContainer1]; 
     //stringTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height)]; 
     stringTextView.keyboardAppearance = YES; 
     stringTextView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; 
     stringTextView.scrollEnabled = YES; 
     stringTextView.backgroundColor = [UIColor redColor]; 
     stringTextView.autocapitalizationType = UITextAutocapitalizationTypeWords; 
     stringTextView.delegate = self; 
     [self addSubview:stringTextView]; 
     [stringTextView becomeFirstResponder]; 

     NSString *sampleString=@"GPRisdoingfirst ios 7.0 project"; 
     textStorage = [[NSTextStorage alloc] initWithString:sampleString]; 
     layoutManager = [[CustomLayoutM alloc] init];//CustomLayoutM is subclass of `NSLayoutManager` 

     [textStorage addLayoutManager:layoutManager]; 
     [textStorage addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Helvetica-Bold" size:30.0] range:NSMakeRange(0, [textStorage length])]; 
     [layoutManager addTextContainer:textContainer1]; 

Ошибка:

Нагрузочное приложение из-за неперехваченное исключение 'NSInvalidArgumentException', причина: «- [UITextView setKeyboardAppearance]: непризнанный селектор направлен например 0x93ab000 '

Первый стек бросить вызов:

(
    0 CoreFoundation      0x019706f4 __exceptionPreprocess + 180 
    1 libobjc.A.dylib      0x016f08b6 objc_exception_throw + 44 
    2 CoreFoundation      0x01a0d983 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275 
    3 libobjc.A.dylib      0x01702959 -[NSObject forwardInvocation:] + 68 
    4 CoreFoundation      0x019607ea ___forwarding___ + 458 
    5 CoreFoundation      0x019605fe _CF_forwarding_prep_0 + 14 
    6 UIKit        0x006ff4b3 -[UITextInputTraits takeTraitsFrom:] + 1075 
    7 UIKit        0x006ffc2b +[UITextInputTraits traitsByAdoptingTraits:] + 83 
    8 UIKit        0x0063a659 -[UIKeyboardImpl takeTextInputTraitsFromDelegate] + 177 
    9 UIKit        0x0063acbb -[UIKeyboardImpl setDelegate:force:] + 1040 
    10 UIKit        0x0063a8a6 -[UIKeyboardImpl setDelegate:] + 48 
    11 UIKit        0x008e535d -[UIPeripheralHost(UIKitInternal) _reloadInputViewsForResponder:] + 640 
    12 UIKit        0x005c0d5a -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] + 287 
    13 UIKit        0x005c064b -[UIResponder becomeFirstResponder] + 550 
    14 UIKit        0x004c4dab -[UIView(Hierarchy) becomeFirstResponder] + 114 
    15 UIKit        0x00b33e69 -[UITextView becomeFirstResponder] + 79 
    16 UIKit        0x004c4df8 -[UIView(Hierarchy) deferredBecomeFirstResponder] + 67 
    17 UIKit        0x004c4e8c -[UIView(Hierarchy) _promoteSelfOrDescendantToFirstResponderIfNecessary] + 115 
    18 UIKit        0x004c514e __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 224 
    19 Foundation       0x014a453c -[NSISEngine withBehaviors:performModifications:] + 107 
    20 Foundation       0x01334395 -[NSISEngine withAutomaticOptimizationDisabled:] + 48 
    21 UIKit        0x004c4fcd -[UIView(Hierarchy) _postMovedFromSuperview:] + 313 
    22 UIKit        0x004d00d1 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1847 
    23 UIKit        0x004c35c1 -[UIView(Hierarchy) addSubview:] + 56 
    24 PracticeiOS7      0x000085a6 -[TextCurveView createTextViewMethod] + 518 
    25 PracticeiOS7      0x00008a9d -[TextCurveView panMethod:] + 1101 
    26 UIKit        0x007de61c _UIGestureRecognizerSendActions + 230 
    27 UIKit        0x007dd290 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 383 
    28 UIKit        0x007decfd -[UIGestureRecognizer _delayedUpdateGesture] + 60 
    29 UIKit        0x007e225d ___UIGestureRecognizerUpdate_block_invoke + 57 
    30 UIKit        0x007e21de _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 317 
    31 UIKit        0x007d88d8 _UIGestureRecognizerUpdate + 199 
    32 UIKit        0x004a6e9a -[UIWindow _sendGesturesForEvent:] + 1291 
    33 UIKit        0x004a7dba -[UIWindow sendEvent:] + 1030 
    34 UIKit        0x0047bb86 -[UIApplication sendEvent:] + 242 
    35 UIKit        0x0046635f _UIApplicationHandleEventQueue + 11421 
    36 CoreFoundation      0x018f996f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 
    37 CoreFoundation      0x018f92fb __CFRunLoopDoSources0 + 235 
    38 CoreFoundation      0x019163ce __CFRunLoopRun + 910 
    39 CoreFoundation      0x01915bf3 CFRunLoopRunSpecific + 467 
    40 CoreFoundation      0x01915a0b CFRunLoopRunInMode + 123 
    41 GraphicsServices     0x030fca27 GSEventRunModal + 192 
    42 GraphicsServices     0x030fc84e GSEventRun + 104 
    43 UIKit        0x00468f0b UIApplicationMain + 1225 
    44 PracticeiOS7      0x00009b8d main + 141 
    45 libdyld.dylib      0x02dec725 start + 0 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 

Answer 1

Вы должны инициализировать свои объекты в правильном порядке.

Сначала создайте и прикрепите NSTextStorage, NSTextContainer и NSLayoutManager. А затем создайте UITextView с готовым к использованию NSTextContainer.

// 1. Create and prepare NSTextContainer 
textContainer1 = [[NSTextContainer alloc] initWithSize:CGSizeMake(2, CGFLOAT_MAX)]; 
NSString *sampleString=@"GPRisdoingfirst ios 7.0 project"; 
textStorage = [[NSTextStorage alloc] initWithString:sampleString]; 
layoutManager = [[CustomLayoutM alloc] init];//CustomLayoutM is subclass of `NSLayoutManager` 
[textStorage addLayoutManager:layoutManager]; 
[textStorage addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Helvetica-Bold" size:30.0] range:NSMakeRange(0, [textStorage length])]; 
[layoutManager addTextContainer:textContainer1]; 

// 2. Create UITextView 
stringTextView = [[UITextView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, frame.size.height) textContainer:textContainer1]; 

// 3. setup UITextView 
stringTextView.keyboardAppearance = YES; 
stringTextView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; 
stringTextView.autocapitalizationType = UITextAutocapitalizationTypeWords; 
// …