代碼：

• (void)viewDidLoad {
  [super viewDidLoad];
  //需要翻轉(zhuǎn)的視圖
  UIView *parentView = [[UIView alloc] initWithFrame:CGRectMake(0, 150, 320, 200)];
  parentView.backgroundColor = [UIColor yellowColor];
  parentView.tag = 1000;
  [self.view addSubview:parentView];
  }
  //需要在h頭文件聲明下面的動作響應(yīng)函數(shù)
  //在xib文件中添加一個button，其響應(yīng)函數(shù)為下面的函數(shù)
  //運行程序后，點擊button就看到翻轉(zhuǎn)效果
  -(IBAction)ActionFanzhuan{
  //獲取當(dāng)前畫圖的設(shè)備上下文
  CGContextRef context = UIGraphicsGetCurrentContext();
  //開始準(zhǔn)備動畫
  [UIView beginAnimations:nil context:context];
  //設(shè)置動畫曲線，翻譯不準(zhǔn)，見蘋果官方文檔
  [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
  //設(shè)置動畫持續(xù)時間
  [UIView setAnimationDuration:1.0];
  //因為沒給viewController類添加成員變量，所以用下面方法得到viewDidLoad添加的子視圖
  UIView *parentView = [self.view viewWithTag:1000];
  //設(shè)置動畫效果
  [UIView setAnimationTransition: UIViewAnimationTransitionCurlDown forView:parentView cache:YES]; //從上向下
  // [UIView setAnimationTransition: UIViewAnimationTransitionCurlUp forView:parentView cache:YES]; //從下向上
  // [UIView setAnimationTransition: UIViewAnimationTransitionFlipFromLeft forView:parentView cache:YES]; //從左向右
  // [UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:parentView cache:YES];//從右向左
  //設(shè)置動畫委托
  [UIView setAnimationDelegate:self];
  //當(dāng)動畫執(zhí)行結(jié)束，執(zhí)行animationFinished方法
  [UIView setAnimationDidStopSelector:@selector(animationFinished:)];
  //提交動畫
  [UIView commitAnimations];
  }

//動畫效果執(zhí)行完畢

• (void) animationFinished: (id) sender{
  NSLog(@"animationFinished !");
  }