最近iphoneX模擬器出來了，在適配iphoneX的時候發現tabbar在頁面跳轉的時候會出現往上跳一下的情況，百思不得其解，最終解決方案如下！
push的時候修改一下tabBar的frame。
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated { if (self.viewControllers.count > 0) { if ([viewController conformsToProtocol:@protocol(XYTransitionProtocol)] && [self isNeedTransition:viewController]) { viewController.hidesBottomBarWhenPushed
= NO; }else { viewController.hidesBottomBarWhenPushed = YES; } } [super pushViewController:viewController animated:animated]; // 修改tabBar的frame CGRect frame = self.tabBarController.tabBar.frame; frame.origin.y = [UIScreen mainScreen].bounds.size.height - frame.size.height;
self.tabBarController.tabBar.frame = frame;}