[GitHub] incubator-weex issue #1051: + [iOS] add WXVideoComponent "poster" attribute.

[acton393]

Github user acton393 commented on the issue:

    https://github.com/apache/incubator-weex/pull/1051
  
    hi,  @xuyouyang   what's the "poster"  feature，  is it  the paused 
picture about  player display?


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