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webView 中有按钮 点击的时候 想调用方法 出现错误 导致AFN 不执行

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    15:03:03.793 MobileOBT[41932:305319] *** WebKit discarded an uncaught exception in the webView:decidePolicyForNavigationAction:request:frame:decisionListener: delegate: <NSInvalidArgumentException> *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]
2015-12-08 15:03:03.794 MobileOBT[41932:305510] void SendDelegateMessage(NSInvocation *): delegate (webView:decidePolicyForNavigationAction:request:frame:decisionListener:) failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode
180300000000000045661F4319E0EADAA0C542D623455132180300000000000045661F4319E0EADAA0C542D6234551322015-12-08 15:10:57.325 MobileOBT[41932:305319] *** WebKit discarded an uncaught exception in the webView:decidePolicyForNavigationAction:request:frame:decisionListener: delegate: <NSInvalidArgumentException> *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]
2015-12-08 15:10:57.327 MobileOBT[41932:305510] void SendDelegateMessage(NSInvocation *): delegate (webView:decidePolicyForNavigationAction:request:frame:decisionListener:) failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode
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    devliu
      511
      新手上路，请多包涵

      attempt to insert nil object from objects[0] 加个判断

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