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
而以下为则黑名单：
spewEffect: 新版面在屏幕下方中间位置被释放出来覆盖旧版面.
- genieEffect: 旧版面在屏幕左下方或右下方被吸走, 显示出下面的新版面 ( 阿拉丁灯神?).
- unGenieEffect: 新版面在屏幕左下方或右下方被释放出来覆盖旧版面.
- twist: 版面以水平方向像龙卷风式转出来.
- tubey: 版面垂直附有弹性的转出来.
- swirl: 旧版面 360度旋转并淡出 , 显示出新版面 .
- charminUltra: 旧版面淡出并显示新版面 .
- zoomyIn: 新版面由小放大走到前面, 旧版面放大由前面消失.
- zoomyOut: 新版面屏幕外面缩放出现, 旧版面缩小消失.
- oglApplicationSuspend: 像按 "home" 按钮的效果 .
*/
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 ]; }];
}];
cocoa china－各种动画效果demo：http://www.cocoachina.com/bbs/read.php?tid-11820.html
