ios之UITabBarItem顯示真實自定義的圖片而非顏色填充 – iPhone手機開發技術文章 iPhone軟體開發教學課程

讓TabBarItem 顯示出我們設置的圖片的真實樣子，需要看以下設置方法在AppDelegate.h中，拿到所有的item然後統一設置成自定義的圖片分別是選中和未選中，針對ios7以後

_tabBarController = [[UITabBarController alloc]init];
    [_tabBarController setViewControllers:@[recNav,feedNav,postNav,loginNav]];
    // 拿到 TabBar 在拿到想應的item
    UITabBar *tabBar = _tabBarController.tabBar;
    UITabBarItem *item0 = [tabBar.items objectAtIndex:0];
    UITabBarItem *item1 = [tabBar.items objectAtIndex:1];
    UITabBarItem *item2 = [tabBar.items objectAtIndex:2];
    UITabBarItem *item3 = [tabBar.items objectAtIndex:3];
    // 對item設置相應地圖片
    item0.selectedImage = [[UIImage imageNamed:@"recognize-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
    item0.image = [[UIImage imageNamed:@"recognize"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    
    item1.selectedImage = [[UIImage imageNamed:@"life-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
    item1.image = [[UIImage imageNamed:@"life"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    
    item2.selectedImage = [[UIImage imageNamed:@"edit-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
    item2.image = [[UIImage imageNamed:@"edit"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
    
    item3.selectedImage = [[UIImage imageNamed:@"setting-1"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];;
    item3.image = [[UIImage imageNamed:@"setting"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

通過以上代碼設置就把4個item的圖片設置好瞭當然也可以分別在對應的controller中進行相應地設置，不過建議統一設置修改起來比較省事，如果需要在item點擊有很炫的動畫或是其他樣式，那就需要高度自定義才能實現

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