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crash:
*** Assertion failure in -[MBProgressHUD show:], /Users/zhongqihulian/Desktop/projectName/qihaoduobao/Pods/MBProgressHUD/MBProgressHUD.m:248
2016-04-14 10:35:40.071 qihaoduobao[1106:259596] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'MBProgressHUD needs to be accessed on the main thread.'
*** First throw call stack:
(0x1823e5900 0x181a53f80 0x1823e57d0 0x182d5899c 0x1002537c8 0x100252530 0x10017cb90 0x1000de1f8 0x1004d3e2c 0x100f45bf0 0x100f45bb0 0x100f54e10 0x100f544d8 0x18204d470 0x18204d020)
libc++abi.dylib: terminating with uncaught exception of type NSException
问题：
MBProgressHUD needs to be accessed on the main thread
MBProgressHUD 要在主线程里访问
问题锁定：
MBProgressHUD 的方法不要写在分线程中
来源：oschina
链接：https://my.oschina.net/u/2601834/blog/659112