iOS：CAAnimation动画集合：移动/旋转/缩放/弹簧/转场效果/漂移动画/常见动画示例
QuartzCore框架下CAAnimation以及UIViewAnimation的动画集合：移动、旋转、缩放、弹簧、组合动画以及各种转场效果、漂移动画和常见动画示例。
移动
- (void)move
{
// 位置移动
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];
// 1秒后执行
animation.beginTime = CACurrentMediaTime() + 1;
// 持续时间
animation.duration = 2.5;
// 重复次数
animation.repeatCount = 2;
// 起始位置
animation.fromValue = [NSValue valueWithCGPoint:_moveView.layer.position];
// 终止位置
animation.toValue = [NSValue valueWithCGPoint:CGPointMake(_moveView.layer.position.x + 100, _moveView.layer.position.y)];
// 添加动画
[_moveView.layer addAnimation:animation forKey:@"move"];
}旋转
- (void)rotate
{
// 对Y轴进行旋转
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
// 1秒后执行
animation.beginTime = CACurrentMediaTime() + 1;
// 持续时间
animation.duration = 2.5;
// 重复次数
animation.repeatCount = 2;
// 起始角度
animation.fromValue = @(0.0);
// 终止角度
animation.toValue = @(2 * M_PI);
// 添加动画
[_rotateView.layer addAnimation:animation forKey:@"rotate"];
}缩放
- (void)zoom
{
// 比例缩放
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
// 1秒后执行
animation.beginTime = CACurrentMediaTime() + 1;
// 持续时间
animation.duration = 2.5;
// 重复次数
animation.repeatCount = 2;
// 起始scale
animation.fromValue = @(1.0);
// 终止scale
animation.toValue = @(1.5);
// 添加动画
[_zoomView.layer addAnimation:animation forKey:@"zoom"];
}弹簧
- (void)spring
{
// 位置移动
CASpringAnimation *animation = [CASpringAnimation animationWithKeyPath:@"position"];
// 1秒后执行
animation.beginTime = CACurrentMediaTime() + 1;
// 阻尼系数（此值越大弹框效果越不明显）
animation.damping = 2;
// 刚度系数（此值越大弹框效果越明显）
animation.stiffness = 50;
// 质量大小（越大惯性越大）
animation.mass = 1;
// 初始速度
animation.initialVelocity = 10;
// 开始位置
[animation setFromValue:[NSValue valueWithCGPoint:_springView.layer.position]];
// 终止位置
[animation setToValue:[NSValue valueWithCGPoint:CGPointMake(_springView.layer.position.x, _springView.layer.position.y + 50)]];
// 持续时间
animation.duration = animation.settlingDuration;
// 添加动画
[_springView.layer addAnimation:animation forKey:@"spring"];
}组合动画
- (void)group
{
// x方向平移
CABasicAnimation *animation1 = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
// 平移100
animation1.toValue = @(100);
// 绕Z轴中心旋转
CABasicAnimation *animation2 = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
// 起始角度
animation2.fromValue = [NSNumber numberWithFloat:0.0];
// 终止角度
animation2.toValue = [NSNumber numberWithFloat:2 * M_PI];
// 比例缩放
CABasicAnimation *animation3 = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
// 终止scale
animation3.toValue = @(0.5);
// 动画组
CAAnimationGroup *group = [CAAnimationGroup animation];
// 1秒后执行
group.beginTime = CACurrentMediaTime() + 1;
// 持续时间
group.duration = 2.5;
// 重复次数
group.repeatCount = 2;
// 动画结束是否恢复原状
group.removedOnCompletion = YES;
// 动画组
group.animations = [NSArray arrayWithObjects:animation1, animation2, animation3, nil];
// 添加动画
[_groupView.layer addAnimation:group forKey:@"group"];
}转场动画
动画效果的枚举
typedef NS_ENUM(NSInteger,AnimationType) {
kAnimationTypeFade, //淡入淡出
kAnimationTypeMoveIn, //覆盖
kAnimationTypePush, //推挤
kAnimationTypeReveal, //揭开
kAnimationTypeCube, //3D立方体
kAnimationTypeSuckEffect, //吮吸
kAnimationTypeOglFlip, //翻转
kAnimationTypeRippleEffect, //波纹
kAnimationTypePageCurl, //翻页
kAnimationTypePageUnCurl, //反翻页
kAnimationTypeCameraIrisHollowOpen, //开镜头
kAnimationTypeCameraIrisHollowClose, //关镜头
kAnimationTypeCurlDown, //下翻页
kAnimationTypeCurlUp, //上翻页
kAnimationTypeFlipFromLeft, //左翻转
kAnimationTypeFlipFromRight //右翻转
} ;其中包含8个私有API，使用过程需要留意，私有API是不被AppStore接受的。
// 全局常量
NSString * const kCATransitionCube = @"cube";
NSString * const kCATransitionSuckEffect = @"suckEffect";
NSString * const kCATransitionOglFlip = @"oglFlip";
NSString * const kCATransitionRippleEffect = @"rippleEffect";
NSString * const kCATransitionPageCurl = @"pageCurl";
NSString * const kCATransitionPageUnCurl = @"pageUnCurl";
NSString * const kCATransitionCameraIrisHollowOpen = @"cameraIrisHollowOpen";
NSString * const kCATransitionCameraIrisHollowClose = @"cameraIrisHollowClose";使用方式
1.CAAnimation动画使用方式如下：
- (void)transitionWithType:(NSString *)type subtype:(NSString *)subtype
{
CATransition *animation = [CATransition animation];
// 动画时间
animation.duration = DURATION;
// 动画类型
animation.type = type;
// 动画子类型
if (subtype) {
animation.subtype = subtype;
}
// 动画缓冲|速度
animation.timingFunction = UIViewAnimationOptionCurveEaseInOut;
[self.view.layer addAnimation:animation forKey:@"animation"];
}2.UIView动画使用方式如下：
- (void)animationWithTransition:(UIViewAnimationTransition)transition
{
[UIView animateWithDuration:DURATION animations:^{
// 详见UIViewAnimationCurve
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:transition forView:self.view cache:YES];
}];
} PS：动画是直接加在self.view上的，可根据需要自行修改，具体效果见Demo吧。
漂移动画
使用UIView动画实现漂移效果，具体实现如下：
// 首先添加定时器
- (void)viewDidLoad
{
[super viewDidLoad];
// 动画定时器
fallTimer = [NSTimer scheduledTimerWithTimeInterval:0.8 target:self selector:@selector(fallAction) userInfo:nil repeats:YES];
}
// 下落
- (void)fallAction
{
// 起始位置随机
NSInteger startX = self.view.bounds.size.width;
startX = random() % startX;
// 结束位置随机
NSInteger endX = self.view.bounds.size.height;
endX = random() % endX;
// 下落速度随机
CGFloat speed = 1 / (random() % 10 + 1) + 1.0;
// 创建视图
UIView *downView = [[UIView alloc] initWithFrame:CGRectMake(startX, -30.0, 30.0, 30.0)];
downView.backgroundColor = [UIColor redColor];
[self.view addSubview:downView];
// 开始动画
[UIView beginAnimations:@"drift" context:(__bridge void * _Nullable)(downView)];
[UIView setAnimationDuration:10 * speed];
downView.frame = CGRectMake(endX, self.view.bounds.size.height, 30.0, 30.0);
[UIView setAnimationDidStopSelector:@selector(animationCompletion:finished:context:)];
[UIView setAnimationDelegate:self];
[UIView commitAnimations];
}
// 下落到底部，移除
- (void)animationCompletion:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context
{
// PS：多个动画的时候，可通过animationID区分
UIView *downView = (__bridge UIView *)(context);
[downView removeFromSuperview];
}
常见动画
示例一：微博发布动画
// 显示
- (void)show
{
UIWindow *window = [UIApplication sharedApplication].keyWindow;
[window addSubview:self];
NSArray *subViews = self.subviews;
[subViews enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
UUButton *btn = obj;
CGFloat top = btn.top;
btn.alpha = 0.0;
btn.top = [UIScreen mainScreen].bounds.size.height;
// 加延时
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(idx * 0.03 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.25
delay:0
usingSpringWithDamping:0.8
initialSpringVelocity:30
options:UIViewAnimationOptionCurveLinear
animations:^{
btn.alpha = 1.0;
btn.top = top;
self.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:1.0];
} completion:nil];
});
}];
}
// 隐藏
- (void)hide
{
// 按钮
NSArray *subViews = self.subviews;
NSUInteger count = [subViews count];
[subViews enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
UUButton *btn = obj;
// 加延时
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)((count - idx) * 0.03 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:5.0
delay:0
usingSpringWithDamping:0.9
initialSpringVelocity:5
options:UIViewAnimationOptionCurveLinear
animations:^{
btn.alpha = 0;
// 移除屏幕
btn.top = [UIScreen mainScreen].bounds.size.height + 50;
} completion:nil];
});
}];
// 背景
[UIView animateWithDuration:0.5 animations:^{
self.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0];
} completion:^(BOOL finished) {
[self removeFromSuperview];
}];
}
后记
本博文源码：源码，如果有什么疑问请留言！欢迎访问我的Github主页。