下边有整体效果，希望能帮助到你！
定义一个视图
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
一、图片旋转三种方式：
第一种：根据CGPathAddArc 绘画图片旋转路线：
/*
1、<#CGMutablePathRef _Nullable path#> 路线
2、确定圆心<#CGFloat x#> <#CGFloat y#>
3、半径<#CGFloat radius#>
4、起点 <#CGFloat startAngle#> 结束 <#CGFloat endAngle#>
*/
CGPathAddArc(path, NULL, self.view.center.x, self.view.center.y, 0.1, 0, M_PI *2, 1);
CAKeyframeAnimation * frameAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
frameAnimation.path= path;
CGPathRelease(path);
frameAnimation.delegate=self;
frameAnimation.duration=10;// 持续时间
frameAnimation.repeatCount = -1;// 重复次数 如果为0表示不执行,-1表示不限制次数,默认为0
frameAnimation.autoreverses=NO;
frameAnimation.rotationMode = kCAAnimationRotateAuto;// 样式
frameAnimation.fillMode = kCAFillModeForwards;
[self.imageView.layeraddAnimation:frameAnimationforKey:nil];
第二种：
[UIView animateWithDuration:20.0f animations:^{
if (self.imageView) {
self.imageView.transform = CGAffineTransformMakeRotation(M_PI*5);
}
}];
第三种：
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
//默认是顺时针效果，若将fromValue和toValue的值互换，则为逆时针效果
animation.fromValue = [NSNumber numberWithFloat:0.f];
animation.toValue = [NSNumber numberWithFloat: M_PI *2];
animation.duration=30;
animation.autoreverses=NO;
animation.fillMode = kCAFillModeForwards;
animation.repeatCount = MAXFLOAT; //如果这里想设置成一直自旋转，可以设置为MAXFLOAT，否则设置具体的数值则代表执行多少次
[self.imageView.layer addAnimation:animation forKey:nil];
持续旋转：
@property(nonatomic,assign) double angle;
CGAffineTransform endAngle = CGAffineTransformMakeRotation(self.angle * (M_PI / 180.0f));
[UIView animateWithDuration:0.01 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
self.imageView.transform= endAngle;
}completion:^(BOOLfinished) {
self.angle+=10;
[self startAnimation2];// 上边任意一种方法回调
}];
// 当视图停止转动时调用此方法重新转动
-(void)endAnimation {
self.angle+=4;
[self startAnimation2];
}
二、水波纹动画
属性定义：几个波纹定义几个X 宽度可以用一个 也可以分开定义
@property (weak, nonatomic) IBOutlet UIView *backView;
@property(nonatomic,strong) CAShapeLayer * waterLayer1;
@property(nonatomic,strong) CAShapeLayer * waterLayer2;
@property(nonatomic,assign) CGFloat x;
@property(nonatomic,assign) CGFloat y;
@property(nonatomic,assign) CGFloat waveHeight;
@property(nonatomic,assign) CGFloat waveWidth;
@property(nonatomic,assign) int speedWave;
@property(nonatomic,assign) CGFloat waveAmplitude;
@property(nonatomic,assign) int speed;
@property(nonatomic,assign) CGFloat speed_H;
@property(nonatomic,assign) CGFloat offsetXT;
-（instancetype）init {// 给个初始值，下边被除数不能为0
if （self == [super init]） {
self.speedWave = 3;
self.waveAmplitude = 3;
self.speed=3;
self.waveWidth = self.backView.frame.size.width;
self.waveHeight = self.backView.frame.size.height;
self.speed_H = self.backView.frame.size.height-20;
}
return self;
}
-(void)waterAnimation {
// CGFloat y = _waveHeight*sinf(2.5*M_PI*i/_waveWidth + 3*_offset*M_PI/_waveWidth + M_PI/4) + _h;
self.waterLayer1 = [CAShapeLayer layer];
self.waterLayer1.fillColor = [UIColor yellowColor].CGColor;
[self.backView.layer addSublayer:self.waterLayer1];
self.waterLayer2 = [CAShapeLayer layer];
self.waterLayer2.fillColor = [UIColor redColor].CGColor;
[self.backView.layer addSublayer: self.waterLayer2];
//创建一个新的 CADisplayLink 对象，把它添加到一个runloop中，并给它提供一个 target 和selector 在屏幕刷新的时候调用
//CADispayLink相当于一个定时器 会一直绘制曲线波纹 看似在运动，其实是一直在绘画不同位置点的余弦函数曲线
CADisplayLink * waveDisplayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(getCurrentWave)];
[waveDisplayLinkaddToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
}
-(void)getCurrentWave {
// x位置
self.x+=self.speed;
//声明第一条波曲线的路径
CGMutablePathRef path = CGPathCreateMutable();
//设置起始点
CGPathMoveToPoint(path,nil,0,self.waveHeight);
CGFloaty =0.f;
//第一个波纹的公式
for(floatx =0.f; x <=self.waveWidth; x++) {
y =self.waveAmplitude*sin((200/self.waveWidth) * (x *M_PI/70) -self.x*M_PI/170) +self.speed_H*1;
CGPathAddLineToPoint(path,nil, x, y);
x++;
}
//把绘图信息添加到路径里
CGPathAddLineToPoint(path, nil, self.waveWidth, self.backView.frame.size.height);
CGPathAddLineToPoint(path, nil, 0, self.backView.frame.size.height);
//结束绘图信息
CGPathCloseSubpath(path);
self.waterLayer1.path= path;
//释放绘图路径
CGPathRelease(path);
[self X2];
}
/// 第二条水波
-(void)X2 {
self.offsetXT += self.speedWave;
CGMutablePathRef pathT = CGPathCreateMutable();
CGPathMoveToPoint(pathT,nil,0,self.waveHeight+50);
CGFloatyT =0.f;
for(floatx =0.f; x <=self.waveWidth; x++) {
yT =self.waveAmplitude*1.6*sin((200/self.waveWidth) * (x *M_PI/100) -self.offsetXT*M_PI/170) +self.waveHeight;
CGPathAddLineToPoint(pathT,nil, x, yT-10);
}
CGPathAddLineToPoint(pathT, nil, self.waveWidth, self.backView.frame.size.height);
CGPathAddLineToPoint(pathT, nil, 0, self.backView.frame.size.height);
CGPathCloseSubpath(pathT);
self.waterLayer2.path= pathT;
CGPathRelease(pathT);
}
三、脉冲效果动画
@property (weak, nonatomic) IBOutlet UIView *pulseView;
@property(nonatomic,strong) CAShapeLayer * pulseLayer;
-(void)pulseAnimation {
CGFloat width = self.pulseView.bounds.size.width;
self.pulseLayer = [CAShapeLayer layer];
self.pulseLayer.bounds=CGRectMake(0,0, width, width);
self.pulseLayer.position=CGPointMake(width/2, width/2);
self.pulseLayer.backgroundColor = [UIColor clearColor].CGColor;
self.pulseLayer.path = [UIBezierPath bezierPathWithOvalInRect:self.pulseLayer.bounds].CGPath;
self.pulseLayer.fillColor = [UIColor colorWithRed: 0.3490196078 green:0.737254902 blue:0.8039215686 alpha:1].CGColor;
self.pulseLayer.opacity = 0.0;
CAReplicatorLayer * replicatorLayer = [CAReplicatorLayer layer];
replicatorLayer.bounds=CGRectMake(0,0, width, width);
replicatorLayer.position=CGPointMake(width/2, width/2);
replicatorLayer.instanceCount=4;// 复制层
replicatorLayer.instanceDelay=1;/// 频率
[replicatorLayeraddSublayer:self.pulseLayer];
[self.pulseView.layeraddSublayer:replicatorLayer];
[self.pulseView.layerinsertSublayer:replicatorLayeratIndex:0];
}
-(void)startPulseAnimation {
CABasicAnimation * opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
opacityAnimation.fromValue=@20;// 起始值 （strong 修饰的id值）
opacityAnimation.toValue=@30;// 结束值（strong 修饰的id值）
CABasicAnimation * scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform"];
scaleAnimation.fromValue = [NSValue valueWithCATransform3D:CATransform3DScale(CATransform3DIdentity, 0.0, 0.0, 0.0)];
scaleAnimation.toValue =[NSValue valueWithCATransform3D:CATransform3DScale(CATransform3DIdentity, 1.0, 1.0, 1.0)];
CAAnimationGroup * groupAnimation = [CAAnimationGroup animation];
groupAnimation.animations=@[opacityAnimation, scaleAnimation];
groupAnimation.duration=20;
groupAnimation.autoreverses=NO;
groupAnimation.repeatCount=HUGE;
[self.pulseLayeraddAnimation:groupAnimationforKey:nil];
}
在此附上效果：
听说有好得三方库，我还没有去找过，欢迎各位大佬推荐一个优质的三方。。。。。
喜欢的朋友点个赞呗！
