使用系统的tabbar解决图片的问题.

用sb使用系统的tabbar,弄好后发现图片始终是蓝色的,并非原来的图片,后经上网查资料,问问同事,有了以下的这些代码,做个标记.

AppDelegate中

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

initTabBarSelectedItem()

return true

}

func initTabBarSelectedItem()

{

var rootController = self.window?

.rootViewController as UITabBarController

var tabBar = rootController.tabBar

    var homeItem = tabBar.items?

[0] as UITabBarItem

    var selectedImg = UIImage(named: "首页")?.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)

    if homeItem.tag == 100

    {

        homeItem.selectedImage = selectedImg

        homeItem.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.redColor(),NSFontAttributeName:UIFont.systemFontOfSize(14)], forState: UIControlState.Normal)

    }

    var orderItem = tabBar.items?[1] as UITabBarItem

    var orderItemImg = UIImage(named: "订单")?.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)

    if orderItem.tag == 101

    {

        orderItem.selectedImage = orderItemImg

        orderItem.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.redColor()], forState: UIControlState.Selected)

    }

    var releaseItem = tabBar.items?

[2] as UITabBarItem

    var releaseItemImg = UIImage(named: "公布")?

.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)

    if releaseItem.tag == 102

    {

        releaseItem.selectedImage = releaseItemImg

        releaseItem.image = releaseItemImg

    releaseItem.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.redColor()], forState: UIControlState.Selected)

    }

    var myItem = tabBar.items?[3] as UITabBarItem

    var myItemImg = UIImage(named: "我的")?

.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)

    if myItem.tag == 103

    {

        myItem.selectedImage = myItemImg

        myItem.setTitleTextAttributes([NSForegroundColorAttributeName:UIColor.redColor()], forState: UIControlState.Selected)

    }

}