iOS7 navigationBar and TabBar Color 默认有变化
self.navigationController.navigationBar.translucent=NO;默认为yesif (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) { [[UINavigationBar appearance]setTintColor:NavigationColor];} else { [[UINavigationBar appearance]setTintColor:[UIColor whiteColor]]; // it set color of bar button item text [[UINavigationBar appearance]setBarTintColor:[UIColor GreenColor]]; // it set color of navigation [[UINavigationBar appearance] setBarStyle:UIBarStyleDefault]; // it set Style of UINavigationBar [[UINavigationBar appearance]setTitleTextAttributes:@{UITextAttributeTextColor : [UIColor whiteColor]}]; //It set title color of Navigation Bar }?