设置系统导航栏

设置导航栏的颜色

self.navigationController.navigationBar.barTintColor = [UIColor blackColor];

    //设置导航栏字体的颜色大小setTitleTextAttributes后面接字典，

    [self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor]}];

    //修改系统返回按钮的颜色

    self.navigationController.navigationBar.barTintColor = [UIColor blackColor];

    self.navigationController.navigationBar.barStyle = UIStatusBarStyleDefault;

    [self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];

    //隐藏返回文字

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

     

                                                         forBarMetrics:UIBarMetricsDefault];