点击按钮UICollectionViewCell宽高变化

Question

我有 UIViewController，在内部使用 UICollectionViewController 和单按钮，我想在单击按钮时更改 UICollectionViewControllerCell，例如高度和宽度。

Answer 1

为集合视图实现委托

- (UICollectionViewTransitionLayout *)collectionView:(UICollectionView *)collectionView
                        transitionLayoutForOldLayout:(UICollectionViewLayout *)fromLayout
                                           newLayout:(UICollectionViewLayout *)toLayout

并对您的按钮使用 IBAction 更改高度和宽度的值。

Answer 2

你能试试这个吗

[UIView transitionWithView:collectionView 
              duration:.5 
               options:UIViewAnimationOptionTransitionCurlUp 
            animations:^{

    //any animatable attribute here.
    cell.frame = CGRectMake(3, 14, 100, 100);
} completion:^(BOOL finished) {
  //whatever you want to do upon completion
}];