Animation Types----Grouping Animations
- (id)initWithFrame:(NSRect)frame { self = [super initWithFrame:frame]; if (self) { CGFloat xInset = 3.0f * (NSWidth(frame) / 8.0f); CGFloat yInset = 3.0f * (NSHeight(frame) / 8.0f); NSRect moverFrame = NSInsetRect(frame, xInset, yInset); moverFrame.origin.x = NSMidX([self bounds]) -(NSWidth(moverFrame) / 2.0f); moverFrame.origin.y = NSMidY([self bounds]) -(NSHeight(moverFrame) / 2.0f);mover = [[NSImageView alloc] initWithFrame:moverFrame];[mover setImageScaling:NSScaleToFit];[mover setImage:[NSImage imageNamed:@"photo.jpg" ]]; NSDictionary *animations =[NSDictionary dictionaryWithObjectsAndKeys: [self groupAnimation:moverFrame], @"frameRotation" , nil]; [mover setAnimations:animations]; [self addSubview:mover]; } return self;}?
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- (CAAnimation *)frameAnimation:(NSRect)aniFrame { CAKeyframeAnimation *frameAnimation =[CAKeyframeAnimation animationWithKeyPath:@"frame" ];NSRect start = aniFrame;NSRect end = NSInsetRect(aniFrame, -NSWidth(start) * 0.50,-NSHeight(start) * 0.50);frameAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithRect:start],[NSValue valueWithRect:end], nil];return frameAnimation;}- (CABasicAnimation *)rotationAnimation { CABasicAnimation *rotation =[CABasicAnimation animationWithKeyPath:@"frameRotation" ]; rotation.fromValue = [NSNumber numberWithFloat:0.0f]; rotation.toValue = [NSNumber numberWithFloat:45.0f]; return rotation;}- (CAAnimationGroup *)groupAnimation:(NSRect)frame { CAAnimationGroup *group = [CAAnimationGroup animation];group.animations = [NSArray arrayWithObjects:[self frameAnimation:frame],[self rotationAnimation], nil];group.duration = 1.0f;group.autoreverses = YES;return group; }- (BOOL)acceptsFirstResponder { return YES;}- (void)keyDown:(NSEvent *)event { [[mover animator] setFrameRotation:[mover frameRotation]];}?