隐藏 UITUITababBar (解决底部空白问题)

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- ( void )setTabBarHidden:( BOOL )hidden{ UIView *tab = self .tabBarController .view ; if ([tab .subviews count ] < 2 ) { return ; } UIView *view; if ([[tab .subviews objectAtIndex : 0 ] isKindOfClass :[ UITabBar class ]]) { view = [tab .subviews objectAtIndex : 1 ]; } else { view = [tab .subviews objectAtIndex : 0 ]; } if (hidden) { view .frame = tab .bounds ; } else { view .frame = CGRectMake(tab .bounds .origin .x , tab .bounds .origin .y , tab .bounds .size .width , tab .bounds .size .height ); } self .tabBarController .tabBar .hidden = hidden; }