move and scale bounces back - ios

Question

As you can see in this video it bounces back whenever I try to crop or move the crop box. I can't find any way to do this and I think my code is correct. How am I suppose to do this?
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Device has no camera"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles: nil];
[myAlertView show];
}
}
- (IBAction)takePhoto:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.imageView.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}

Answer 1

If image is too far away use this method to animate it back:
[UIView animateWithDuration: animations: completion:]
animations: is a block and it will change e.g CGRects over a duration, if you want to change the image position you add [image setRect:(CGRectMake(orginPosition.x, orginPosition.y, size.width, size.height))];
completion: is a block but isn't required.