Question

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崩溃发生在：

[emtionString replaceCharactersInRange:range withString:imageAndRangeDicArray[i][@"image"]];

将NSMutableAttributedString替换为attributeString

这是堆栈跟踪：

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSConcreteMutableAttributedString _encodingCantBeStoredInEightBitCFString]: unrecognized selector sent to instance 0x7fe8f34f52f0'

    *** First throw call stack:
    (
        0   CoreFoundation                      0x0000000107e95f35 __exceptionPreprocess + 165
        1   libobjc.A.dylib                     0x0000000107b2ebb7 objc_exception_throw + 45
        2   CoreFoundation                      0x0000000107e9d04d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
        3   CoreFoundation                      0x0000000107df527c ___forwarding___ + 988
        4   CoreFoundation                      0x0000000107df4e18 _CF_forwarding_prep_0 + 120
        5   CoreFoundation                      0x0000000107db8195 __CFStringCheckAndReplace + 597
        6   CoreFoundation                      0x0000000107db7f1b -[__NSCFString replaceCharactersInRange:withString:] + 27
        7   Foundation                          0x00000001076da63e -[NSConcreteMutableAttributedString replaceCharactersInRange:withString:] + 337

Answer 1

emtionString和imageAndRangeDicArray [i] [@＆＃34; image＆＃34;]是什么类型的？

根据文档，该方法需要NSString作为withString。

如果您传入的是NSAttributedString，那么它就无法工作。（看起来NSAttributedString应该是NSString的子类，但它不是。）

iOS NSMutableAttributedString崩溃使用无法识别的选择器

1 个答案: