//导航条标题

self.navigationItem.title = @"title";

//导航条返回时文字的设置

self.navigationController.navigationBar.topItem.title= @"";

//去掉导航条返回时文字

[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(NSIntegerMin, NSIntegerMin) forBarMetrics:UIBarMetricsDefault];


//导航条返回时箭头颜色的设置

self.navigationController.navigationBar.tintColor = [UIColor redColor];

//导航条的颜色

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

//隐藏返回按钮

self.navigationItem.hidesBackButton = YES;

//设置导航条背景颜色

[[UINavigationBar appearance]setBarTintColor:[UIColor redColor]];

//设置导航条背景图片

[[UINavigationBar appearance]setBackgroundImage:[UIImage p_w_picpathNamed:@"ios"] forBarMetrics:UIBarMetricsDefault];

//设置导航条标题的颜色和字体大小

[self.navigationController.navigationBar setTitleTextAttributes:

@{NSFontAttributeName:[UIFont systemFontOfSize:19],

NSForegroundColorAttributeName:[UIColor redColor]}];