CoreAnimation 核心动画
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- (void)createBaseAnimation{
//基础动画
CABasicAnimation *animation = [CABasicAnimation animation];
animation.keyPath = @"bounds";
// animation.fromValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 300, 300)];//默认为现在的状态
animation.toValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 300, 300)];
animation.duration = 2;
animation.removedOnCompletion = NO; //动画之后保持最新
animation.fillMode = kCAFillModeForwards; //最新样式
animation.delegate = self;
[view.layer addAnimation:animation forKey:nil];
}
- (void)animationDidStart:(CAAnimation *)anim{
NSLog(@"动画开始时调用");
}
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{
NSLog(@"动画结束时调用");
}
- (void)createKeyFrameAnimation{
//帧动画
CAKeyframeAnimation *animation = [CAKeyframeAnimation animation];
animation.keyPath = @"position";
//路径
// CGMutablePathRef path = CGPathCreateMutable();
// CGPathAddEllipseInRect(path, nil, CGRectMake(100, 100, 200, 200));
//
// animation.path = path;
//注意:与基础动画的区别:可以设置多个点/一堆值
NSValue *value1 = [NSValue valueWithCGPoint:CGPointMake(0, 0)];
NSValue *value2 = [NSValue valueWithCGPoint:CGPointMake(0, 300)];
NSValue *value3 = [NSValue valueWithCGPoint:CGPointMake(300, 0)];
animation.values = @[value1,value2,value3];
//动画的执行节奏
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
animation.duration = 5;
animation.removedOnCompletion = NO; //动画之后保持最新
animation.fillMode = kCAFillModeForwards; //最新样式
[view.layer addAnimation:animation forKey:nil];
}
- (void)createTransiton{
//转场动画
CATransition *animaiton = [CATransition animation];
//动画过渡类型
animaiton.type = @"cube";
//过渡方向
animaiton.subtype = kCATransitionFade;
animaiton.duration = 3;
[view.layer addAnimation:animaiton forKey:nil];
}
- (void)createAnimationGroup{
//动画分组(旋转+缩放)
//1.旋转
CABasicAnimation *rotationAnimaiton = [CABasicAnimation animation];
rotationAnimaiton.keyPath = @"transform.rotation.z";
rotationAnimaiton.toValue = @(M_PI_4 * 3);
rotationAnimaiton.duration = 5;
rotationAnimaiton.repeatCount = MAXFLOAT;
//2.缩放
CABasicAnimation *scaleAnimation = [CABasicAnimation animation];
scaleAnimation.keyPath = @"transform";
scaleAnimation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(2, 2, 0)];
scaleAnimation.duration = 5;
//动画分组
CAAnimationGroup *group = [CAAnimationGroup animation];
group.animations = @[rotationAnimaiton,scaleAnimation];
group.removedOnCompletion = NO;
group.fillMode = kCAFillModeForwards;
group.duration = 5;
[view.layer addAnimation:group forKey:nil];
}
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