我们这个项目的需求是主界面的导航栏不显示

self.navigationController.navigationBarHidden = YES;  所以在viewDidLoad里面写这句

要想点击tabar后再返回并且隐藏导航栏 只需要

- (void)viewWillAppear:(BOOL)animated {

[super viewWillAppear:animated];

self.navigationController.navigationBarHidden = YES;

}

- (void)viewWillDisappear:(BOOL)animated {

[super viewWillDisappear:animated];

self.navigationController.navigationBarHidden = NO;

}

//隐藏返回按钮的文字

[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(0, -60)

forBarMetrics:UIBarMetricsDefault];

就可以了！