iOS核心动画以及UIView动画的介绍

#pragma mark - 基本动画：按路径移动（默认返回原位）
- (IBAction)moveAtPathBack:(UIButton *)sender {
    
    //设置keyPath 为：transform.translation.x
    CABasicAnimation * animation = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
    
    //起始值
    animation.fromValue= @(150);
    //到达值
    animation.toValue = @(-150);
    animation.duration=1;
    
    //要添加到layer
    [self.button.layer addAnimation:animation forKey:nil];
    
    
}

#pragma mark - 基本动画：按路径移动（不返回原位）

- (IBAction)moveAtPath:(id)sender {
    
    //设置keyPath 为：transform.translation.x
    CABasicAnimation * animation = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
    
    animation.fromValue= @(150);
    animation.toValue = @(-150);
    animation.duration=1;
    
    //不回到原位置，但是控件的“真身”还在原位
    animation.removedOnCompletion=NO;
    
    //保持的状态
    animation.fillMode=kCAFillModeForwards;
    
    [self.button.layer addAnimation:animation forKey:nil];
}


#pragma mark - 基本动画：旋转

- (IBAction)rotate:(UIButton *)sender {
    
    //设置keyPath 为：transform.rotation.y
    
    CABasicAnimation * animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
    
    //转一周
    NSNumber * num = @(M_PI*2);
    
    animation.toValue=num;
    animation.removedOnCompletion=NO;
    animation.fillMode=kCAFillModeForwards;
    //转了3秒
    animation.duration=3;
    //重复次数无限大
    animation.repeatCount=CGFLOAT_MAX;
    [self.button.layer addAnimation:animation forKey:nil];
    
}

#pragma mark - 关键帧：按方形路径移动
- (IBAction)keyPathPath:(UIButton *)sender {
    
    //设置keyPath 为：position
    
    CAKeyframeAnimation * animation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    
    //设置5个值
    NSValue * v1 = [NSValue valueWithCGPoint:CGPointMake(100, 200)];
    NSValue * v2 = [NSValue valueWithCGPoint:CGPointMake(100, 400)];
    NSValue * v3 =[NSValue valueWithCGPoint:CGPointMake(300, 400)];
    NSValue * v4 = [NSValue valueWithCGPoint:CGPointMake(300, 200)];
    NSValue * v5 = [NSValue valueWithCGPoint:CGPointMake(100, 200)];
    
    //加入“值”数组
    animation.values=@[v1,v2,v3,v4,v5];
    animation.duration=2;
    animation.repeatCount=CGFLOAT_MAX;
    animation.removedOnCompletion=NO;
    animation.fillMode=kCAFillModeForwards;
    
    [self.button.layer addAnimation:animation forKey:nil];
    
}


#pragma mark - 关键帧：size变化

- (IBAction)keyPathSize:(id)sender {
    
    //设置keyPath 为：bounds.size
    
    CAKeyframeAnimation * animation = [CAKeyframeAnimation animationWithKeyPath:@"bounds.size"];
    
    //设置三个值
    
    NSValue * v0 = [NSValue valueWithCGSize:CGSizeMake(100, 100)];
    NSValue * v1 = [NSValue valueWithCGSize:CGSizeMake(200, 200)];
    NSValue * v2 = [NSValue valueWithCGSize:CGSizeMake(100, 100)];
    
    animation.values=@[v0,v1,v2];
    animation.duration=0.5;
    animation.repeatCount=CGFLOAT_MAX;
    animation.removedOnCompletion=NO;
    animation.fillMode=kCAFillModeForwards;
    
    [self.button.layer addAnimation:animation forKey:nil];
    
}


#pragma mark - 关键帧：抖动

- (IBAction)keyPathShake:(id)sender {
    
    //设置keyPath 为：transform.rotation.z
    
    CAKeyframeAnimation * animation = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];
    
    //设置两个角度值
    NSNumber * n1 = @(-M_PI_4/3);
    NSNumber * n2 = @(M_PI_4/3);
    //再三个值之间进行改变
    animation.values=@[n1,n2,n1,];
    animation.repeatCount=CGFLOAT_MAX;
    animation.duration=0.15;
    animation.removedOnCompletion=NO;
    animation.fillMode=kCAFillModeForwards;
    [self.button.layer addAnimation:animation forKey:nil];
    
}

#pragma mark - 组动画

- (IBAction)groupAnimation:(UIButton *)sender {
    
    [self makeView:nil];
    
    //动画1：移动
    CAKeyframeAnimation * animation1 = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    
    NSValue * v1 = [NSValue valueWithCGPoint:CGPointMake(100, 200)];
    NSValue * v2 = [NSValue valueWithCGPoint:CGPointMake(100, 400)];
    NSValue * v3 = [NSValue valueWithCGPoint:CGPointMake(300, 400)];
    NSValue * v4 = [NSValue valueWithCGPoint:CGPointMake(300, 200)];
    NSValue * v5 = [NSValue valueWithCGPoint:CGPointMake(100, 200)];
    animation1.values=@[v1,v2,v3,v4,v5];
    animation1.repeatCount=CGFLOAT_MAX;
    animation1.removedOnCompletion=NO;
    animation1.fillMode=kCAFillModeForwards;
    
    //动画2 ：
    
    CAKeyframeAnimation * animation2 = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation.z"];
    NSNumber * n1 = @(-M_PI_4/2);
    NSNumber * n2 = @(M_PI_4/2);
    animation2.values=@[n1,n2,n1,];
    animation2.repeatCount=CGFLOAT_MAX;
    animation2.duration=0.15;
    animation2.removedOnCompletion=NO;
    animation2.fillMode=kCAFillModeForwards;
    
    //创建组动画
    
    CAAnimationGroup * animation = [CAAnimationGroup animation];
    animation.animations=@[animation1,animation2];
    animation.duration=2;
    animation.repeatCount=CGFLOAT_MAX;
    
    //将组动画加入到layer就可以了，各个动画并发执行
    [self.button.layer addAnimation:animation forKey:nil];
    
}

#pragma mark - 转场动画

-(void)makeImage
{
    
    //生成一个测试转场动画的视图
    
    UIImageView * imageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"1"]];
    imageView.center =self.view.center;
    self.imageView=imageView;
    [self.view addSubview: imageView];
    
    //创建手势识别器，用来响应屏幕滑动
    UISwipeGestureRecognizer * swipeLeft = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeImage:)];
    UISwipeGestureRecognizer * swipeRight =[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeImage:)];
    //添加识别器属性
    swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
    swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
    
    //添加到视图
    
    [self.view addGestureRecognizer:swipeLeft];
    [self.view addGestureRecognizer:swipeRight];
    
}

#pragma mark - 滑动屏幕响应事件

-(void)swipeImage:(UISwipeGestureRecognizer *)rec
{
    
    //判断滑动方向
    //向左滑动
    if (rec.direction==UISwipeGestureRecognizerDirectionLeft) {
        self.index++;
        //图片可以循环播放
        if (self.index==6) {
            self.index=1;
        }
    }
    
    //向右滑动
    else{
        self.index--;
        if (self.index==0) {
            self.index=5;
        }
    }
    
#pragma mark - 方式一，使用过CATransition实现转场（渐变消失）
    
    //这里的changeStyle只是点击按钮的判断
    if (self.changeStyle==1) {
        
        //创建动画
        
        CATransition * animation = [CATransition animation];
        
        //前一张消失
        animation.type = kCATransitionFade;
        
        //将动画添加到控件layer，控件属性变化时（图片更换）将采用设定动画
        [self.imageView.layer addAnimation:animation forKey:nil];
        
    }
    
#pragma mark - 方式二 ,使用UIView（block）实现转场（向左拖：左右旋转+ 向右拖：上下翻页）
    else if(self.changeStyle==2) {
        
        //如果向左滑动，向左旋转显示
        
        if (rec.direction==UISwipeGestureRecognizerDirectionLeft) {
            
            [UIView transitionWithView:self.imageView duration:1 options:UIViewAnimationOptionTransitionFlipFromRight animations:^{
                
               //block里面是控件的属性变化，这里和CATransition实现不同
                UIImage * image = [UIImage imageNamed:[NSString stringWithFormat:@"%ld",self.index]];
                self.imageView.image=image;
                
                
            } completion:nil];
        }
        
        //如果向右滑动，子页面向下推出
        
        else{
            [UIView transitionWithView:self.imageView duration:1 options:UIViewAnimationOptionTransitionCurlUp animations:^{
                
                UIImage * image = [UIImage imageNamed:[NSString stringWithFormat:@"%ld",self.index]];
                self.imageView.image=image;
                
            } completion:nil];
            
        }
    }
    
    
    
    
#pragma mark - 方式三，使用过CATransition实现转场（向左滑：向左退出 + 向右滑：向下推出）
    else{
        
        CATransition * animation = [CATransition animation];
        //如果向右滑动，子页面从左推出
        if (rec.direction == UISwipeGestureRecognizerDirectionRight) {
            animation.subtype = kCATransitionFromBottom;
            
        }
        //如果向右滑动，子页面从下推出
        
        else{
            animation.subtype = kCATransitionFromRight;
            
        }
        
        animation.type = kCATransitionPush;
        
        [self.imageView.layer addAnimation:animation forKey:nil];
        
    }
    
    UIImage * image = [UIImage imageNamed:[NSString stringWithFormat:@"%ld",self.index]];
    
    //这是添加了动画的控件，属性改变时按照我们设定的有动画效果
    self.imageView.image=image;
    
}