更改UINavigationController导航栏的颜色 [英] change the color of navigation bar of UINavigationController

问题描述

我试图通过使用

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

在下面给出的代码中但不起作用。

in the below given code but its not working.

 #import "uitextviewAppDelegate.h"

#import "uitextviewViewController.h"

@implementation uitextviewAppDelegate

@synthesize window = _window;
@synthesize viewController = _viewController;
@synthesize navigationController = _navigationController;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

// Override point for customization after application launch.
self.viewController = [[uitextviewViewController alloc] init];

UINavigationController *navigationController=[[UINavigationController alloc] init];

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

[navigationController pushViewController:_viewController animated:YES];

[_window addSubview:navigationController.view];

self.window.rootViewController = self.viewController;

[self.window makeKeyAndVisible];

return YES;
}

任何人都可以说出为什么它没有改变导航栏的颜色UINavigation Controller。

Can anyone tell why it is not changing the color of the navigation bar of the UINavigation Controller.

提前致谢。

推荐答案

看着这些两行：

UINavigationController *navigationController=[[UINavigationController alloc] init];

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

第一个 navigationController 与<$连接的是什么c $ c> self.navigationController ？

据我所知，没什么。

您需要将 self.navigationController 分配给 navigationController 。

类似于：

self.navigationController = navigationController;

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