[GitHub] incubator-weex issue #1072: [WEEX-249][iOS]fix WXRuleManager multi-thread cr...

[xuyouyang]

Github user xuyouyang commented on the issue:

    https://github.com/apache/incubator-weex/pull/1072
  
    hi @acton393 if we change fontFamilyDic type to NSMutableDictionary，will 
it also cause multi-thread problem?
    For example, other thread operate object in fontFamilyDic.
    
    And I have a doubt that why WXThreadSafeDictionary can be a deadlock? It 
created in different queue and different lock.


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