UITabBarItem色調的改變

在項目中想實現自定義如圖UITabBarItem的選中狀態，一開始的想法是讓美工做了兩套圖，一個是未選中的灰色圖標，還有一套根據rgb自定義的圖標

樓主查了下

UITabBarItem *homeItem = [[UITabBarItem alloc] initWithTitle:@"首頁" image:[UIImage imageNamed:@"tab1"] tag:0];
 [homeItem setFinishedSelectedImage:[UIImage imageNamed:@"tab1-1"] withFinishedUnselectedImage:[UIImage imageNamed:@"tab1"]];

<pre name="code" class="objc">[homeItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
                                         [UIColor colorWithRed:51/255.0 green:198/255.0 blue:165/255.0 alpha:1], UITextAttributeTextColor,
                                         nil] forState:UIControlStateSelected];

通過此方法可以實現色調切換，但是項目出現警告，提示這兩個方法均已過時。ios7新增了兩個方法可以輕鬆實現

[[UITabBar appearance] setSelectedImageTintColor:[UIColor colorWithRed:51/255.0 green:198/255.0 blue:165/255.0 alpha:1]];
    
    [[UITabBarItem appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys: [UIColor colorWithRed:51/255.0 green:198/255.0 blue:165/255.0 alpha:1], UITextAttributeTextColor, nil]
                                             forState: UIControlStateSelected];