再转动画实现

最普通动画: //开始动画 [UIView beginAnimations:nil context:nil];   //设定动画持续时间 [UIView setAnimationDuration:2]; //动画的内容 frame.origin.x += 150; [img setFrame:frame]; //动画结束 [UIView commitAnimations]; 连续动画:一个接一个地显示一系列的图像 NSArray *myImages = [NSArray arrayWithObjects:  [UIImage imageNamed:@"myImage1.png"],  [UIImage imageNamed:@"myImage2.png"],  [UIImage imageNamed:@"myImage3.png"],  [UIImage imageNamed:@"myImage4.gif"], nil]; UIImageView *myAnimatedView = [UIImageView alloc];  [myAnimatedView initWithFrame:[self bounds]];  myAnimatedView.animationImages = myImages; //animationImages属性返回一个存放动画图片的数组 myAnimatedView.animationDuration = 0.25; //浏览整个图片一次所用的时间 myAnimatedView.animationRepeatCount = 0; // 0 = loops forever 动画重复次数 [myAnimatedView startAnimating];  [self addSubview:myAnimatedView];  [myAnimatedView release];  CATransition Public API动画: CATransition *animation = [CATransition animation]; //动画时间     animation.duration = 0.5f; //先慢后快     animation.timingFunction = UIViewAnimationCurveEaseInOut; animation.fillMode = kCAFillModeForwards; //animation.removedOnCompletion = NO; //各种动画效果 /* kCATransitionFade; kCATransitionMoveIn; kCATransitionPush;z kCATransitionReveal; */ /* kCATransitionFromRight; kCATransitionFromLeft; kCATransitionFromTop; kCATransitionFromBottom; */ //各种组合 animation.type = kCATransitionPush; animation.subtype = kCATransitionFromRight;  [self.view.layer addAnimation:animation forKey:@"animation"]; CATransition Private API动画: animation.type可以设定为以下效果 动画效果汇总: /*  suckEffect（三角）  rippleEffect（水波抖动）  pageCurl（上翻页）  pageUnCurl（下翻页）  oglFlip（上下翻转）  cameraIris/cameraIrisHollowOpen/cameraIrisHollowClose  （镜头快门，这一组动画是有效果，只是很难看，不建议使用 UIView Animations 动画: [UIView beginAnimations:@"animationID" context:nil]; [UIView setAnimationDuration:0.5f]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationRepeatAutoreverses:NO]; //以下四种效果 /* [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.view cache:YES];//oglFlip, fromLeft  [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];//oglFlip, fromRight   [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES]; */ [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0]; [UIView commitAnimations]; IOS4.0新方法: 方法: +(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations; + (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^)(BOOL finished))completion; //多一个动画结束后可以执行的操作. //下边是嵌套使用,先变大再消失的动画效果. [UIView animateWithDuration:1.25 animations:^{ CGAffineTransform newTransform = CGAffineTransformMakeScale(1.2, 1.2); [firstImageView setTransform:newTransform]; [secondImageView setTransform:newTransform];}  completion:^(BOOL finished){ [UIView animateWithDuration:1.2 animations:^{ [firstImageView setAlpha:0]; [secondImageView setAlpha:0];} completion:^(BOOL finished){  [firstImageView removeFromSuperview];  [secondImageView removeFromSuperview]; }];  }];