I am simply trying to understand the way to use updateItemUsingCurrentState
and how to send a scaled UIView or UIImageView to the animator so I can
have a large box and small box for physics tests on viewDidLoad. I want to
learn how to pass it this info so I can dynamically change the size later
in other events.
I saw a post about updateItemUsingCurrentState from a stackoverflow
question and within Apples docs for it, but I can't find a hard example
using scale with it. The docs at Apple say it updates the rotation.
Im sure ill find out that I need to change the bounds or something else
later, but for now I just wanna get past this barrier.
Sample code below:
@property (strong, nonatomic) IBOutlet UIView *CatBox;
@property (strong, nonatomic) IBOutlet UIImageView *catFishBox;
@property (nonatomic) UIDynamicAnimator* animator;
@property (strong, nonatomic) IBOutlet UIView *wrapperWolfBox;
@end
@implementation CatFishViewController
UIDynamicAnimator* _animator;
UIGravityBehavior* _gravity;
UICollisionBehavior* _collision;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
_animator = [[UIDynamicAnimator alloc] initWithReferenceView:self.view];
_gravity = [[UIGravityBehavior alloc] initWithItems:@[_wrapperWolfBox]];
[_animator addBehavior:_gravity];
_collision = [[UICollisionBehavior alloc]
initWithItems:@[_wrapperWolfBox]];
_collision.translatesReferenceBoundsIntoBoundary = YES;
[_animator addBehavior:_collision];
//
//
CGAffineTransform maybeGetTransform = CGAffineTransformScale(
_wrapperWolfBox.transform, 2.2, 2.2);
_wrapperWolfBox.transform = maybeGetTransform;
[_animator updateItemUsingCurrentState:self.wrapperWolfBox];
// _animator.updateItemUsingCurrentState:self.catFishBox;
}
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