IOS8 下修改TabBar上的按钮的点击颜色

HomePageViewController *first = [[HomePageViewControlleralloc]
init];

first.tabBarItem = [[UITabBarItemalloc]
initWithTitle:@"首页"image:aImage
selectedImage:nil];

UINavigationController *nav1= [[UINavigationController
alloc]initWithRootViewController:first];

// 2种设置tabbar上的图片的方法:

first.tabBarItem = [[UITabBarItemalloc]
initWithTitle:@"首页"image:aImage
selectedImage:nil];

first.tabBarController.tabBar.selectedItem.selectedImage =
[UIImage imageNamed:@"shouye_sel.png"];

// 设置点击颜色//重要 (ios8)

nav1.tabBarController.tabBar.tintColor = [UIColorblackColor];