UISearchBar OtomatikKayıt Hatası Üzerinde AramaResultsController

Question

Obj-C'de çalışan UISearchBar + UISearchController Apple'ın örnek kodu here ile birlikte çalışıyorum. Arama çubuğunu örnekte olduğu gibi bir tablo görünümünde ayarlamak istemiyorum, bu yüzden ana görüntü denetleyicinin üst kısmına yapıştırmak için kısıtlamalar yapıyorum. Bu konumlandırma için çalışıyor, ama arama çubuğuna ve bunun sonuçları Tablo görünümü denetleyicisi (searchResultsTVC) sunmak modally çalıştığında, bu kısıtlamaları bir hata atar: Burada

2015-02-01 00:36:47.539 Search-FeatureTest[15521:3760972] The view hierarchy is not prepared for the constraint: <NSLayoutConstraint:0x7fc911c77f90 UISearchBar:0x7fc911c6b880.left == UIView:0x7fc911c69b70.left> 
When added to a view, the constraint's items must be descendants of that view (or the view itself). This will crash if the constraint needs to be resolved before the view hierarchy is assembled. Break on -[UIView _viewHierarchyUnpreparedForConstraint:] to debug. 
2015-02-01 00:36:47.539 Search-FeatureTest[15521:3760972] *** Assertion failure in -[UIView _layoutEngine_didAddLayoutConstraint:roundingAdjustment:mutuallyExclusiveConstraints:], /SourceCache/UIKit_Sim/UIKit-3318.16.14/NSLayoutConstraint_UIKitAdditions.m:560 
2015-02-01 00:36:47.541 Search-FeatureTest[15521:3760972] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Impossible to set up layout with view hierarchy unprepared for constraint.' 
*** First throw call stack: 
(
    0 CoreFoundation      0x00000001047aef35 __exceptionPreprocess + 165 
    1 libobjc.A.dylib      0x0000000104447bb7 objc_exception_throw + 45 
    2 CoreFoundation      0x00000001047aed9a +[NSException raise:format:arguments:] + 106 
    3 Foundation       0x00000001040645df -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195 
    4 UIKit        0x0000000105215cf2 __120-[UIView(UIConstraintBasedLayout) _layoutEngine_didAddLayoutConstraint:roundingAdjustment:mutuallyExclusiveConstraints:]_block_invoke_2 + 177 
    5 UIKit        0x0000000105215be7 -[UIView(UIConstraintBasedLayout) _layoutEngine_didAddLayoutConstraint:roundingAdjustment:mutuallyExclusiveConstraints:] + 377 
    6 UIKit        0x0000000105215ea4 -[UIView(UIConstraintBasedLayout) _tryToAddConstraintWithoutUpdatingConstraintsArray:roundingAdjustment:mutuallyExclusiveConstraints:] + 30 
    7 UIKit        0x0000000105215fcc -[UIView(UIConstraintBasedLayout) _tryToAddConstraint:roundingAdjustment:mutuallyExclusiveConstraints:] + 243 
    8 UIKit        0x000000010521630b __50-[UIView(UIConstraintBasedLayout) addConstraints:]_block_invoke + 188 
    9 Foundation       0x0000000103fedd6e -[NSISEngine withBehaviors:performModifications:] + 155 
    10 UIKit        0x0000000105216240 -[UIView(UIConstraintBasedLayout) addConstraints:] + 263 
    11 UIKit        0x000000010520f112 -[_UISearchPresentationController presentationTransitionWillBegin] + 759 
    12 UIKit        0x0000000104ca00a7 __71-[UIPresentationController _initViewHierarchyForPresentationSuperview:]_block_invoke + 1398 
    13 UIKit        0x0000000104c9eb50 __56-[UIPresentationController runTransitionForCurrentState]_block_invoke + 175 
    14 UIKit        0x0000000104bbe331 _applyBlockToCFArrayCopiedToStack + 314 
    15 UIKit        0x0000000104bbe1ab _afterCACommitHandler + 516 
    16 CoreFoundation      0x00000001046e3dc7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23 
    17 CoreFoundation      0x00000001046e3d20 __CFRunLoopDoObservers + 368 
    18 CoreFoundation      0x00000001046d9b53 __CFRunLoopRun + 1123 
    19 CoreFoundation      0x00000001046d9486 CFRunLoopRunSpecific + 470 
    20 GraphicsServices     0x0000000107d7d9f0 GSEventRunModal + 161 
    21 UIKit        0x0000000104b9b420 UIApplicationMain + 1282 
    22 Search-FeatureTest     0x0000000103f19043 main + 115 
    23 libdyld.dylib      0x0000000106d3e145 start + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 

Ben başlatmak kodudur arama kontrol ve arama bar'ın kısıtlamalar:

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    self.searchResultsTVC = [[SearchResultsTVC alloc]init]; 
    self.allObjects = [NSMutableArray arrayWithArray:@[@"A", @"AA", @"ABBA", @"B", @"BOB", @"C", @"D", @"E", @"F", @"G", @"H"]]; 

    self.searchController = [[UISearchController alloc]initWithSearchResultsController:self.searchResultsTVC]; 
    [self.searchController setSearchResultsUpdater:self]; 
    [self.searchController setDelegate:self]; 

    [self.searchController.searchBar setDelegate:self]; 
    [self.view addSubview:self.searchController.searchBar]; 

    //constraints for searchBar 
    [self.searchController.searchBar setTranslatesAutoresizingMaskIntoConstraints:NO]; 
    UISearchBar *searchBar = self.searchController.searchBar; 
    id topLayoutGuide = self.topLayoutGuide; 

    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[searchBar]|" options:NSLayoutFormatDirectionLeftToRight metrics:nil views:NSDictionaryOfVariableBindings(searchBar)]]; 
    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[topLayoutGuide][searchBar]" options:NSLayoutFormatDirectionLeftToRight metrics:nil views:NSDictionaryOfVariableBindings(topLayoutGuide, searchBar)]]; 

} 

Answer 1

Çözüm: Hayvanlar önerilen olarak, I arayüz oluşturucu bir kap görünümü ilave

(Darmen yanıt olarak), Superview ve üst kenarlarına kısıtlı , Henüz bir çözüm bulamadık

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    self.searchController = [[UISearchController alloc]initWithSearchResultsController:<Your SearchResultsController>]; 
    [self.searchController setSearchResultsUpdater:self]; 
    [self.searchController setDelegate:self]; 

    [self.searchController.searchBar setDelegate:self]; 

    [self.searchBarContainer addSubview:self.searchController.searchBar]; 

    self.definesPresentationContext = YES; 
}