iOS 简单的动画连接

CABasicAnimation *flip = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];

flip.toValue = [NSNumber numberWithDouble:-M_PI];

CABasicAnimation *scale= [CABasicAnimation animationWithKeyPath:@"transform.scale"];

scale.toValue = [NSNumber numberWithDouble:12];

scale.duration = 1.5;

scale.autoreverses = YES;

CAAnimationGroup *group = [CAAnimationGroup animation];

group.animations = [NSArray arrayWithObjects:flip, scale,scale,flip,nil];

group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

group.duration = 6;

group.fillMode = kCAFillModeForwards;

group.removedOnCompletion = NO;

[self.view.layer addAnimation:group forKey:@"position"];