我常用的动画：

    mainFrame = [[Test_Book1_2_Classes_ViewController alloc] init];
	
	CATransition *transition = [CATransition animation];
    transition.duration = 1.0f;         /* 间隔时间*/
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; /* 动画的开始与结束的快慢*/
    transition.type = @"pageCurl"; /* 各种动画效果*/
	//@"cube" @"moveIn" @"reveal" @"fade"(default) @"pageCurl" @"pageUnCurl" @"suckEffect" @"rippleEffect" @"oglFlip"
	
    transition.subtype = kCATransitionFromTop;   /* 动画方向*/
    transition.delegate = self;
    [self.navigationController.view.layer addAnimation:transition forKey:nil];
    [self.navigationController pushViewController:mainFrame animated:YES];

    需要引用：#import <QuartzCore/QuartzCore.h>
　　         QuartzCore.framwork