animation界面跳转翻页效果

    SecondViewController * vc = [[SecondViewController alloc]init];    UIApplication * app = [UIApplication sharedApplication];    AppDelegate * appDelegate = app.delegate ;    UIWindow * window = appDelegate.window ;    window.rootViewController = vc ;    //    设置翻页效果    [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:2];    //第一个参数：设置翻页效果    //第二个参数：切换视图的父视图    //第三个参数：是否使用缓存 ；    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:window cache:YES];    [UIView commitAnimations];