在每一个即将被push的控制器push之前,设置viewController.hidesBottomBarWhenPushed = YES,表示这个控制器在被push的时候会隐藏底部的tabbar

#import "SZMNavBaseController.h"

@interface SZMNavBaseController ()

@end

@implementation SZMNavBaseController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated{

    //在每一个即将被push的控制器push之前,设置viewController.hidesBottomBarWhenPushed = YES,表示这个控制器在被push的时候会隐藏底部的tabbar
    viewController.hidesBottomBarWhenPushed = YES;
    [super pushViewController:viewController animated:animated];

}