crash - NSMutableRLEArray 中的 iOS11 崩溃 replaceObjectsInRange:withObject:length::Out of bounds

Question

我们的 App Find a Foundation 崩溃，仅在 iOS11 中。如何解决？

Fatal Exception: NSRangeException
NSMutableRLEArray replaceObjectsInRange:withObject:length:: Out of bounds

0  CoreFoundation                 0x184f8bd38 __exceptionPreprocess
1  libobjc.A.dylib                0x1844a0528 objc_exception_throw
2  CoreFoundation                 0x184f8bc80 -[NSException initWithCoder:]
3  Foundation                     0x18587c168 -[NSMutableRLEArray replaceObjectsInRange:withObject:length:]
4  Foundation                     0x18588262c -[NSConcreteMutableAttributedString replaceCharactersInRange:withAttributedString:]
5  CoreFoundation                 0x184e65bec -[__NSArrayM enumerateObjectsWithOptions:usingBlock:]
6  UIKit                          0x18ec677b8 -[UILayoutManagerBasedDraggableGeometry draggableObjectsForTextRange:]

Answer 1

我可以在 iOS 13.0 beta 4 中使用示例应用程序重现它，该示例应用程序显示一个 UITextView，其中包含一个包含链接的特殊属性字符串。点击或拖动链接时它会崩溃。

NSMutableAttributedString *aString = [[NSMutableAttributedString alloc] initWithString:@""];

NSTextAttachment *attachment = [[NSTextAttachment alloc] init];
attachment.image = [[UIImage imageNamed:@"weblink"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
attachment.bounds = CGRectMake(0, 0, 15, 15);
[aString appendAttributedString:[NSAttributedString attributedStringWithAttachment:attachment]];

[aString appendAttributedString:[[NSAttributedString alloc] initWithString:@"  More Information"]];
[aString addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"https://www.apple.com"] range:NSMakeRange(0, aString.length)];

self.textView.attributedText = aString;

在  反馈助手上归档为 FB6738178。