导航栏不出现

Question

我想让我的Navigationbar清晰的颜色。所以我在 ViewDidLoad

中这样尝试

self.navigationController.navigationBar.hidden=NO;

[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage=[UIImage new];

self.navigationController.navigationBar.translucent=YES;

self.navigationController.navigationBar.topItem.titleView.tintColor=[UIColor blackColor];
self.navigationController.navigationBar.topItem.title=[lan GetConvertedLanguageString:@"My Profile"];
self.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:NSForegroundColorAttributeName];



self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"backarrow"] style:UIBarButtonItemStylePlain target:self action:@selector(revealToggle :)];
[self.navigationController navigationBar].tintColor = [UIColor whiteColor];

但在我的视图控制器中看不到任何内容。这段代码有什么问题？请帮我。谢谢

Answer 1

截图

代码

[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage=[UIImage new];
self.navigationItem.title = @"1234";
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Left" style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationController.navigationBar.titleTextAttributes = [NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:NSForegroundColorAttributeName]; 
[self.navigationController navigationBar].tintColor = [UIColor whiteColor];

所以，我猜，你的View背景是白色的，所以你看不到白色文字。

备注

navigationBar.titleTextAttributes

Display attributes for the bar’s title text.

navigationBar.tintColor

The tint color to apply to the navigation items and bar button items.

Answer 2

拾取导航控制器场景，然后拾取导航栏（见图片），然后从 showutilites> 属性检查器设置清晰的颜色，你也可以从这里更改标题颜色

导航栏不出现

NAvigation bar not appear

ios

uinavigationcontroller

uinavigationbar