UINavigationBar自定义导航栏背景和按钮，完美支持横屏竖屏旋转

UINavigationBar自定义导航栏背景和按钮，完美支持横屏竖屏旋转，视图控制器可以分别使用自己的导航栏
导航上的按钮背景需要做，否则看起来不那么和之又谐
Objective-c代码 
 
 1 //CustomNavigationBar.h  
 2 @interface UINavigationBar (UINavigationBarCategory)  
 3 UIImageView *backgroundView;  
 4 - (void)setBackgroundImage:(UIImage*)image;  
 5 - (void)insertSubview:(UIView *)view atIndex:(NSInteger)index;  
 6 @end  
 7   
 8 //CustomNavigationBar.m  
 9 @implementation UINavigationBar (UINavigationBarCategory)  
10 -(void)setBackgroundImage:(UIImage*)image  
11 {  
12     if(image == nil)  
13     {  
14         [backgroundView removeFromSuperview];  
15     }  
16     else  
17     {  
18         backgroundView = [[UIImageView alloc] initWithImage:image];  
19         backgroundView.tag = 1;  
20         backgroundView.frame = CGRectMake(0.f, 0.f, self.frame.size.width, self.frame.size.height);  
21         backgroundView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;  
22         [self addSubview:backgroundView];  
23         [self sendSubviewToBack:backgroundView];  
24         [backgroundView release];  
25     }  
26 }  
27   
28 //for other views  
29 - (void)insertSubview:(UIView *)view atIndex:(NSInteger)index  
30 {  
31     [super insertSubview:view atIndex:index];  
32     [self sendSubviewToBack:backgroundView];  
33 }  
34 @end  
35   
36 //YourViewController.m  
37 - (void)viewWillAppear:(BOOL)animated  
38 {  
39     [super viewWillAppear:animated];  
40     [self.navigationController.navigationBar  
41         setBackgroundImage:[UIImage imageNamed:@"navigation_bar_bg.png"]];  
42 }

 

posted @ 2012-05-08 11:27  妙笔  阅读(488)  评论(0)  编辑  收藏  举报