tabBarItem 设置动画 animation

tabBarItem 点击的时候 能否设置一个好看的动画 下面的代码可以实现

- (void)tabBarController:(UITabBarController *)theTabBarController didSelectViewController:(UIViewController *)viewController

{

 

  [viewController.tabBarItemsetBadgeValue:@"3"];

    

    NSMutableArray *arrayBt = [NSMutableArrayarray];

    for (id tabBt in [theTabBarController.tabBar subviews])

    {

        NSLog(@"~~~~~~~%@",tabBt);

        if ([tabBtisKindOfClass:NSClassFromString(@"UITabBarButton")])

        {

            [arrayBt addObject:tabBt];

        }

    }

    

   UIView *view =  [arrayBtobjectAtIndex:tabBarController.selectedIndex];

    int i=0;

    for (id tmp in [view subviews])

    {

        NSLog(@"--------%@",tmp);

        i++;

        if ([tmpisKindOfClass: NSClassFromString(@"UITabBarSelectionIndicatorView")])

        {

//

            break;

        }

    }

    

    

    

    CATransition *transition = [CATransitionanimation];

    transition.duration = 1.0f;

    transition.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseInEaseOut];

    transition.type = kCATransitionMoveIn;

    transition.subtype = kCATransitionFromBottom;

    [[[[view subviews]objectAtIndex:i]layer]addAnimation:transition forKey:nil];

}