设置tabbaritem的title颜色（选中和未选中）

#define UIColorFromRGB(rgbValue) \
[UIColor colorWithRed:((float)((rgbValue &
0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0x00FF00) >>
8))/255.0 \
blue:((float)((rgbValue & 0x0000FF) >>
0))/255.0 \
alpha:1.0]
//点击之后的颜色：草绿
#define COLOR_HIGHTLIGHT UIColorFromRGB(0x129190)
//白色
#define COLOR_THEME_FONT UIColorFromRGB(0xffffff)

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NSDictionary *attributes =
[NSDictionary
dictionaryWithObjectsAndKeys:[UIFont

fontWithName:@"Helvetica"
size:10],
NSFontAttributeName,
COLOR_THEME_FONT,
NSForegroundColorAttributeName,
nil];
[[UITabBarItem
appearance] setTitleTextAttributes:attributes
forState:UIControlStateNormal];

NSDictionary *attributes2 =
[NSDictionary
dictionaryWithObjectsAndKeys:[UIFont
fontWithName:@"Helvetica"
size:10],
NSFontAttributeName,
COLOR_HIGHTLIGHT,
NSForegroundColorAttributeName,
nil];
[[UITabBarItem
appearance] setTitleTextAttributes:attributes2
forState:UIControlStateSelected];