以UIScrollView编辑方式将子视图添加到xib并启用autolayout。接收崩溃：
2015-02-25 22:21:25.829 EAIntroView[5215:1435025] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 5 beyond bounds [0 .. 4]'
*** First throw call stack:
(
0 CoreFoundation 0x000000010c1f4f35 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010be8dbb7 objc_exception_throw + 45
2 CoreFoundation 0x000000010c0dff33 -[__NSArrayM objectAtIndex:] + 227
3 UIKit 0x000000010c87b5b1 _UIViewTopDownSubtreeTraversal + 193
4 UIKit 0x000000010ceacee6 -[UIView(UIConstraintBasedLayout_EngineDelegate) _invalidateSystemLayoutSizeFittingSizeAtEngineDelegateLevel] + 128
5 Foundation 0x000000010ba319bf -[NSISEngine tryToAddConstraintWithMarker:expression:integralizationAdjustment:mutuallyExclusiveConstraints:] + 915
6 Foundation 0x000000010bbbb0f8 -[NSLayoutConstraint _addLoweredExpression:toEngine:integralizationAdjustment:lastLoweredConstantWasRounded:mutuallyExclusiveConstraints:] + 275
7 Foundation 0x000000010ba2611a -[NSLayoutConstraint _addToEngine:integralizationAdjustment:mutuallyExclusiveConstraints:] + 220
8 UIKit 0x000000010cea9de5 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 474
9 Foundation 0x000000010ba33d6e -[NSISEngine withBehaviors:performModifications:] + 155
10 UIKit 0x000000010cea9beb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 452
11 UIKit 0x000000010cea99fe -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 197
12 UIKit 0x000000010cea9ce4 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 217
13 Foundation 0x000000010ba33d6e -[NSISEngine withBehaviors:performModifications:] + 155
14 UIKit 0x000000010cea9beb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 452
15 UIKit 0x000000010cea99fe -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 197
16 UIKit 0x000000010cea9ce4 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 217
17 Foundation 0x000000010ba33d6e -[NSISEngine withBehaviors:performModifications:] + 155
18 UIKit 0x000000010cea9beb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 452
19 UIKit 0x000000010cea99fe -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 197
20 UIKit 0x000000010c8a568b -[UIScrollView _switchToLayoutEngine:] + 69
21 UIKit 0x000000010cea9ce4 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 217
22 Foundation 0x000000010ba33d6e -[NSISEngine withBehaviors:performModifications:] + 155
23 UIKit 0x000000010cea9beb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 452
24 UIKit 0x000000010cea99fe -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 197
25 UIKit 0x000000010cea9ce4 __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke_2 + 217
26 Foundation 0x000000010ba33d6e -[NSISEngine withBehaviors:performModifications:] + 155
27 UIKit 0x000000010cea9beb __57-[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:]_block_invoke + 452
28 UIKit 0x000000010cea99fe -[UIView(AdditionalLayoutSupport) _switchToLayoutEngine:] + 197
29 UIKit 0x000000010cea9671 -[UIView(AdditionalLayoutSupport) _initializeHostedLayoutEngine] + 404
30 UIKit 0x000000010ce9e591 -[UIView(UIConstraintBasedLayout) _layoutEngine_windowDidChange] + 127
31 UIKit 0x000000010c8984a5 -[UIView(Internal) _didMoveFromWindow:toWindow:] + 207
32 UIKit 0x000000010c891112 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 125
33 UIKit 0x000000010c891086 -[UIView(Hierarchy) _postMovedFromSuperview:] + 437
34 UIKit 0x000000010c89af4b -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1604
35 UIKit 0x000000010cabfe84 -[UILayoutContainerView addSubview:] + 75
36 EAIntroView 0x000000010b93e14a -[EAIntroView showInView:animateDuration:withInitialPageIndex:] + 362
37 EAIntroView 0x000000010b93dfc9 -[EAIntroView showInView:animateDuration:] + 121
38 EAIntroView 0x000000010b9303a7 -[ViewController showIntroWithCustomViewFromNib] + 1879
39 EAIntroView 0x000000010b9326a4 -[ViewController tableView:didSelectRowAtIndexPath:] + 340
40 UIKit 0x000000010c90c393 -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 1293
41 UIKit 0x000000010c90c4d4 -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 219
42 UIKit 0x000000010c847331 _applyBlockToCFArrayCopiedToStack + 314
43 UIKit 0x000000010c8471ab _afterCACommitHandler + 516
44 CoreFoundation 0x000000010c129dc7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
45 CoreFoundation 0x000000010c129d20 __CFRunLoopDoObservers + 368
46 CoreFoundation 0x000000010c11fb53 __CFRunLoopRun + 1123
47 CoreFoundation 0x000000010c11f486 CFRunLoopRunSpecific + 470
48 GraphicsServices 0x00000001106f59f0 GSEventRunModal + 161
49 UIKit 0x000000010c824420 UIApplicationMain + 1282
50 EAIntroView 0x000000010b932843 main + 115
51 libdyld.dylib 0x000000010e9c7145 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
xib中是否存在任何自动布局限制并不重要。将自动布局约束添加到以编程方式创建的子视图（不包含xib） - 会导致同样的崩溃。
但是：如果我们创建并显示自定义视图而不进行任何自动布局，请隐藏它并使用autolayout xib创建新视图 - 即使所有约束都有效，它也能正常工作。
相关问题：NSRangeException on iOS 8
该问题的解决方案：
关闭所有XIB的AutoLayout解决了这个问题。
GitHub上的所有代码，示例项目和相关问题：https://github.com/ealeksandrov/EAIntroView/issues/100
答案 0 :(得分：0)
我终于找到了这个问题的根本原因：我的subviews子类（EARestrictedScrollView.m#L54-56）中的UIScrollView属性覆盖。
Autolayout以某种方式使用子视图属性并覆盖它会破坏事物。这是不一致的，取决于许多其他事情，但修复subviews在100％的情况下为我处理。