iphoneX,iphoneX Max中tabbar重影问题解决

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    for (UIView *tabBar in self.tabBarController.tabBar.subviews) {
        if([tabBar isKindOfClass:NSClassFromString(@"UITabBarButton")]){
            [tabBar removeFromSuperview];
        }
    }
}

// 解决iphoneX在返回时候tabb出现重影的问题
- (void)viewWillLayoutSubviews{   
    [super viewWillLayoutSubviews];   
    for (UIView *view in self.tabBar.subviews) {       
        if(![viewisKindOfClass:[MainTabBarclass]]) {           
            [viewremoveFromSuperview];       
        }   
    }
}