iOS 隐藏tabbar代码详解

-（void）viewWillAppear:（BOOL）animated{NSArray *array=self.tabBarController.view.subviews;UIView *view=array[2];view.frame=CGRectMake（0, [UIScreen mainScreen ].bounds.size.height, [UIScreen mainScreen ].bounds.size.width, 49）;[UIView commitAnimations];}- （void）viewWillDisappear:（BOOL）animated{NSArray *array=self.tabBarController.view.subviews;UIView *view=array[2];view.frame=CGRectMake（0, [UIScreen mainScreen ].bounds.size.height-49, [UIScreen mainScreen ].bounds.size.width, 49）;[UIView commitAnimations];}

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