自定义tabBarItem选中和未选中的显示效果

以下代码是在TabBarViewController的ViewControllers的其中一个ViewController的viewDidLoad中写的！！！

UIImage *image = [UIImage imageNamed:@"Heart"];

//item未选中状态时，image不使用tintColor的颜色

image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

//添加tabbarItem

UITabBarItem *tabbarItem = [[UITabBarItem alloc] initWithTitle:@"育儿搜" image:image selectedImage:image];

//设置item未选中状态时，title的颜色

[tabbarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], NSForegroundColorAttributeName, nil] forState:UIControlStateNormal];

self.tabBarItem = tabbarItem;