ios - UIApplication sharedApplication EXC BAD ACCESS in a UITextField category - 


- (void)somemethod { bool isrighttoleft = ([uiapplication sharedapplication].userinterfacelayoutdirection == uiuserinterfacelayoutdirectionrighttoleft) }

this causes exc bad access. i'm thinking because not thread safe , called many times. rules in using uiapplication sharedapplication? thanks!


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