iOS8 NSXMLParser崩溃

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I had a crash in NSXMLParser

* Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSXMLParser does not supportreentrant parsing.'

Here is my code

NSString *wrappedSnippet = [NSString stringWithFormat:@"<html>%@</html>", self.snippet];NSXMLParser *parser = [[NSXMLParser alloc] initWithData:[wrappedSnippet dataUsingEncoding:NSUTF8StringEncoding]];[parser setDelegate:self];[parser parse];

app crashes on the last line.

Note, that everything works perfect on iOS7!

I resolved my problem by dispatching parser in background queue!

NSXMLParser现在是线程安全的。然而,它是不可重入的给定线程;别叫解析一个NSXMLParser从内部代表另一个NSXMLParser的回调。

- (void)parseWithCompletion:(ParserHandler)handler {     dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);     dispatch_async(queue, ^{          self.handler = handler;          [self parse];     });}- (void)parserDidEndDocument:(NSXMLParser *)parser {     dispatch_async(dispatch_get_main_queue(), ^{          if (self.handler) {             self.handler(YES, self.dictionary, nil);             self.handler = nil;          }     });}

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