隐藏bottomBar

都在同一个控制器中设置

1、跳转之前设置隐藏

JobViewController *jobVC = [[JobViewController alloc] init];
jobVC.hidesBottomBarWhenPushed=YES;
[self.navigationController pushViewController:jobVC animated:YES];

2、跳转回来回复bottombar

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    self.tabBarController.tabBar.hidden = NO;
    self.hidesBottomBarWhenPushed = NO;

}