一端iOS5.0以上订制UITabbar的代码

iOS-Custom-Tabbar.m

[self.tabBar setSelectionIndicatorImage:[UIImage imageNamed:@"tab-bar_highlighted.png"]];
[[UITabBarItem appearance] setTitleTextAttributes:
 [NSDictionary dictionaryWithObjectsAndKeys:
  RGB(187, 187, 187), UITextAttributeTextColor,
  [UIFont systemFontOfSize:10], UITextAttributeFont,
  nil]
                                         forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:
 [NSDictionary dictionaryWithObjectsAndKeys:
  RGB(153, 210, 249), UITextAttributeTextColor,
  [UIFont systemFontOfSize:10], UITextAttributeFont,
  nil]
                                         forState:UIControlStateSelected];

[self.tabBar setBackgroundImage:[UIImage imageNamed:@"tab-bar.png"]];
for (NSInteger i = 0; i < self.tabBar.items.count; i++) {
    UITabBarItem *item = [self.tabBar.items objectAtIndex:i];
    [item setTitle:[titles objectAtIndex:i]];
    item.titlePositionAdjustment = UIOffsetMake(1, -2);
    [item setFinishedSelectedImage:[UIImage imageNamed:[selectedImageNames objectAtIndex:i]]
       withFinishedUnselectedImage:[UIImage imageNamed:[imageNames objectAtIndex:i]]
     ];
    [item setImageInsets:UIEdgeInsetsMake(1 -1, 0, -1 + 1, 0)];

}
UIImageView *view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 10, 10)];
view.backgroundColor = [UIColor redColor];
[self.tabBar addSubview:view];