Question

I can implement an animation using animator in mac os cocoa, like

[[view animator] setFrame:newFrame];

but my problem is I have to animate some points which are properties of view. I can do it like the following iPhone code:

[UIView animateWithDuration:0.3 animations:^{
                                for (Point point in self.points) {
                                    point.x += 10;
                                }
                           } completion:^(BOOL finished) {

                                }];
                            }];

I want to know how can I do this in mac ox cocoa?

Answer 1

Usually for NSView animation you have to override standart animation, that is used by animator.

CABasicAnimation* animation = [CABasicAnimation animation];
animation.delegate = yourDelegate;
NSDictionary *animations = [NSDictionary dictionaryWithObjectsAndKeys:animation,@"frameSize",nil];
[view setAnimations:animations];

The key for the animation is the property you want to animate.

If you don’t need delegate you can use such code:

[CATransaction begin];
[CATransaction setAnimationDuration:0.5];
[CATransaction setAnimationTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]];
[[view animator] setFrameOrigin:origin];
[CATransaction commit];

If you need more complex animations you can create an overlay window with layer hosting contentview and animate layers with a view screenshot inside.