iOS 简单动画效果

CATransition *transition = [CATransition animation];

transition.duration = 0.7;

transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

transition.type = @"cube";//{kCATransitionMoveIn, kCATransitionPush, kCATransitionReveal, kCATransitionFade};

//更多私有{@"cube",@"suckEffect",@"oglFlip",@"rippleEffect",@"pageCurl",@"pageUnCurl",@"cameraIrisHollowOpen",@"cameraIrisHollowClose"};

transition.subtype = kCATransitionFromBottom;//{kCATransitionFromLeft, kCATransitionFromRight, kCATransitionFromTop, kCATransitionFromBottom};

transition.delegate = self;

[self.view.window.layer addAnimation:transition forKey:nil];

[self.view.window addSubview:_tipBgView];