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];

}