IOS5修改UIToolBar 和UINavigationBar 的背景颜色

UIToolBar 三种办法

方法一

/toolBar background image set based on iOS version

    [[UIDevice currentDevice] systemVersion];



    if ([[[UIDevice currentDevice] systemVersion] floatValue] > 4.9) {



        //iOS 5

        UIImage *toolBarIMG = [UIImage imageNamed: @"toolBar_brown.png"];  



        if ([toolBar respondsToSelector:@selector(setBackgroundImage:forToolbarPosition:barMetrics:)]) { 

            [toolBar setBackgroundImage:toolBarIMG forToolbarPosition:0 barMetrics:0]; 

        }



    } else {



        //iOS 4

        [toolBar insertSubview:[[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"toolBar_brown.png"]] autorelease] atIndex:0]; 

    } 

 方法二

 // MyToolBar.h

#import <UIKit/UIKit.h>

@interface MyToolBar : UIToolbar {



}

@end



// MyToolBar.m

#import "MyToolBar.h"

@implementation MyToolBar



- (void)drawRect:(CGRect)rect {

 CGContextRef c = UIGraphicsGetCurrentContext();

 UIImage *image = [UIImage imageNamed:@"fish.png"];

 CGContextDrawImage(c, rect, image.CGImage);

}

@end

方法三

-(void)drawRect:(CGRect)rect
{
    
    UIImage *img  = [[[UIImage alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"ToolbarBk" ofType:@"png"]] autorelease];
    [img drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
    

} 

UINavigationBar  

在APPDelegate添加

@implementation UINavigationBar (UINavigationBarCategory)
- (void)drawRect:(CGRect)rect {
UIImage *img = [UIImage imageNamed:@"navbar.png"];
[img drawInRect:rect];
}

@end 

 if ([self.navigationController.navigationBar respondsToSelector:@selector( setBackgroundImage:forBarMetrics:)]){

[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"navbar.png"] forBarMetrics:UIBarMetricsDefault];
}