- (void)viewDidLoad {
[super viewDidLoad];
// 添加图片
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"2.jpg"]];
self.imageView.frame = CGRectMake(30, 100, CGRectGetWidth(self.imageView.frame), CGRectGetHeight(self.imageView.frame));
[self.view addSubview:self.imageView];
// 贝塞尔曲线路径
UIBezierPath *movePath = [UIBezierPath bezierPath];
[movePath moveToPoint:CGPointMake(10.0, 10.0)];
[movePath addQuadCurveToPoint:CGPointMake(100, 300) controlPoint:CGPointMake(300, 100)];
//以下必须导入QuartzCore包
//关键帧动画（位置）
CAKeyframeAnimation *posAnim = [CAKeyframeAnimation animationWithKeyPath:@"position"];
posAnim.path = movePath.CGPath;
posAnim.removedOnCompletion = YES;
// 缩放动画
CABasicAnimation *scaleAnim = [CABasicAnimation animationWithKeyPath:@"transform"];
scaleAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];
scaleAnim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)];
scaleAnim.removedOnCompletion = YES;
// 透明动画
CABasicAnimation *opacityAnim = [CABasicAnimation animationWithKeyPath:@"alpha"];
opacityAnim.fromValue = [NSNumber numberWithFloat:1.0];
opacityAnim.toValue = [NSNumber numberWithFloat:0.1];
opacityAnim.removedOnCompletion = YES;
// 动画组
CAAnimationGroup *animGroup = [CAAnimationGroup animation];
animGroup.animations = [NSArray arrayWithObjects:posAnim,scaleAnim,opacityAnim, nil];
animGroup.duration = 1;
[self.imageView.layer addAnimation:animGroup forKey:nil];
// Do any additional setup after loading the view, typically from a nib.
}
