How to customize UINavigationBar in IOS5

In IOS5, I do not yet know how to customize UINavigationBar.

My code is like this:

    [[UINavigationBar appearance] setBackgroundColor:[UIColor colorWithWhite:0.5f alpha:1.0]];

    [[UINavigationBar appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor blackColor],UITextAttributeTextColor 
,[UIColor blackColor], UITextAttributeTextShadowColor 
,[NSValue valueWithUIOffset:UIOffsetMake(0, 0)], UITextAttributeTextShadowOffset
,[UIFont fontWithName:@"Arial" size:20.0],UITextAttributeFont 
, nil]];


    // Customize UIBarButtonItems
 UIImage *gradientImage44 = [[UIImage imageNamed: @"title__bg.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];       

[[UINavigationBar appearance] setBackgroundImage:gradientImage44 forBarMetrics:UIBarMetricsDefault];

    [[UIBarButtonItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor],UITextAttributeTextColor
,[UIColor whiteColor], UITextAttributeTextShadowColor 
,[NSValue valueWithUIOffset:UIOffsetMake(0, 0)], UITextAttributeTextShadowOffset
,[UIFont fontWithName:@"Arial" size:14.0],UITextAttributeFont
, nil] forState:UIControlStateNormal];

    // Customize back button items differently
    UIImage *buttonBack30 = [[UIImage imageNamed:@"bn_back"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 13, 0, 5)];

    [[UIBarButtonItem appearance] setBackButtonBackgroundImage:buttonBack30 forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

This pic is UINavigationViewController used in PopoverView.

This pic is UINavigationViewController opened by Modal.

As you see, I set background-image, nevertheless NavigationBar's border is different.

Is this a problem about PopoverView?

I do not know What I'd missed.

Please tell me your advice. Thanks!!! and Happy new year!!!

回答1:

Goto AppDelegate.m and paste the code under

- (BOOL)application:(UIApplication *)application 
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

Set the status bar to black color.

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque 
                                            animated:NO];

Change @"menubar.png" to the file name of your image.

 UIImage *navBar = [UIImage imageNamed:@"menubar.png"];

[[UINavigationBar appearance] setBackgroundImage:navBar 
                                   forBarMetrics:UIBarMetricsDefault];

回答2:

Have a look at this: UINavigationBar Apple developer reference