由于未捕获的异常"NSInternalInconsistencyException"而终止应用程序，原因："无效参数不满足：pos"

Question

当我在UITextView中粘贴一些复制的文本时，我的应用程序崩溃了。此崩溃仅发生在iOS15 上

0   CoreFoundation                      0x00007fff203feba4 __exceptionPreprocess + 242
1   libobjc.A.dylib                     0x00007fff201a1be7 objc_exception_throw + 48
2   Foundation                          0x00007fff20753aa2 _userInfoForFileAndLine + 0
3   UIKitCore                           0x00007fff254164a5 -[_UITextKitTextPosition compare:] + 235
4   UIKitCore                           0x00007fff254097b4 -[UITextInputController comparePosition:toPosition:] + 85
5   UIKitCore                           0x00007fff2542ac7d -[UITextView comparePosition:toPosition:] + 85
6   UIKitCore                           0x00007fff253d0251 -[UITextPasteController _clampRange:] + 634
7   UIKitCore                           0x00007fff253d09c4 __87-[UITextPasteController _performPasteOfAttributedString:toRange:forSession:completion:]_block_invoke + 40
8   UIKitCore                           0x00007fff253d0bcc __87-[UITextPasteController _performPasteOfAttributedString:toRange:forSession:completion:]_block_invoke.174 + 184
9   UIKitCore                           0x00007fff25412629 -[UITextInputController _pasteAttributedString:toRange:completion:] + 471
10  UIKitCore                           0x00007fff253d092a -[UITextPasteController _performPasteOfAttributedString:toRange:forSession:completion:] + 726
11  UIKitCore                           0x00007fff253cfc07 __49-[UITextPasteController _executePasteForSession:]_block_invoke + 299
12  libdispatch.dylib                   0x00007fff2011265a _dispatch_call_block_and_release + 12
13  libdispatch.dylib                   0x00007fff2011383a _dispatch_client_callout + 8
14  libdispatch.dylib                   0x00007fff20120c88 _dispatch_main_queue_callback_4CF + 1075
15  CoreFoundation                      0x00007fff2036c84d __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
16  CoreFoundation                      0x00007fff203670aa __CFRunLoopRun + 2772
17  CoreFoundation                      0x00007fff203660f3 CFRunLoopRunSpecific + 567
18  GraphicsServices                    0x00007fff2c995cd3 GSEventRunModal + 139
19  UIKitCore                           0x00007fff25059f42 -[UIApplication _run] + 928
20  UIKitCore                           0x00007fff2505eb5e UIApplicationMain + 101

Answer 1

使视图控制器符合UITextPasteDelegate:

class viewController: UIViewController, UITextPasteDelegate { ...

并设置通过延迟：

textView.pasteDelegate = self

然后实现textPasteConfigurationSupporting功能：

func textPasteConfigurationSupporting(
_ textPasteConfigurationSupporting: UITextPasteConfigurationSupporting,
performPasteOf attributedString: NSAttributedString,
to textRange: UITextRange) 
-> UITextRange {
<#code#>
}

Answer 2

我找到了一个可行的解决方案。如果在表视图中使用UITextView，并且还为包含UITextView的单元格实现了prepareForReuse。请确保在prepareForReuse中将UITextView.text值设置为nil。在我的情况下，我后来这样做了(不是在为重用做准备(，这不知何故导致了一些关于"；pos"；粘贴时导致崩溃。