UINavigationBar设置背景图片
为UINavigatonBar增加如下Category:

@implementation UINavigationBar (CustomImage)  - (void)drawRect:(CGRect)rect {      UIImage *image = [UIImage imageNamed: @"NavigationBar.png"];  [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];  }  @end 

 UIColor *titleBarColor = [UIColor colorWithRed:153.0/255.0 green:70.0/255.0 blue:7.0/255.0 alpha:1.0];    self.navigationController.navigationBar.tintColor=titleBarColor;