swift中tabbar切换页面动画

1、直接通过UITabbarController.selectedindex = 1跳转页面的话，可以用下面的方法实现跳转后动画页面

var selectedViewController = UITabbarController.selectedViewController

var animation = CATransition()

animation.duration = 0.5

animation.type = kCATransitionPush//动画样式，有多种

animation.subtype = kCATransitionFromLeft

animation.timingFunction = CAMediaTimingFunction(name:kCAMediaTimingFunctionEaSEOut)

selectedViewController.view.layer.addAnimation(animation,forKey: "switchView")//添加动画

2、点击tabbar切换页面，可以在UITabBarControllerDelegate的实现方法didSelectViewController中添加动画

func tabBarController(tabBarController: UITabBarController,didSelectViewController viewController: UIViewController) {

var animation = CATransition()

animation.duration = 0.5

animation.type = kCATransitionPush

animation.subtype = kCATransitionFromLeft

animation.timingFunction = CAMediaTimingFunction(name:kCAMediaTimingFunctionEaSEOut)

viewController.view.layer.addAnimation(animation,forKey: "switchView")

}

（编辑：李大同）

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