ios去掉navigationController和tabBarController裡的邊框黑線

ios去掉navigationController和tabBarController裡的邊框黑線
ios去掉navigationController和tabBarController裡的邊框黑線by 伍雪穎

- (void)viewWillAppear:(BOOL)animated {    [self.navigationController.navigationBar setBackgroundImage:[TDUtils createImageWithColor:[UIColor clearColor]] forBarMetrics:UIBarMetricsDefault];    [self.navigationController.navigationBar setBackIndicatorTransitionMaskImage:[TDUtils createImageWithColor:[UIColor clearColor]]];    [self.navigationController.navigationBar setShadowImage:[TDUtils createImageWithColor:[UIColor clearColor]]];        [self.tabBarController.tabBar setBackgroundImage:[TDUtils createImageWithColor:[UIColor clearColor]]];    [self.tabBarController.tabBar setShadowImage:[TDUtils createImageWithColor:[UIColor clearColor]]];}