在UICollectionViewCell上缩放转换

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    // 返回每个UICollectionViewCell的大小
}

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    // 获取当前选中的UICollectionViewCell
}

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    if let cell = collectionView.cellForItem(at: indexPath) {
        UIView.animate(withDuration: 0.3) {
            cell.transform = CGAffineTransform(scaleX: 1.2, y: 1.2) // 缩放为原来的1.2倍
        }
    }
}

func collectionView(_ collectionView: UICollectionView, didDeselectItemAt indexPath: IndexPath) {
    if let cell = collectionView.cellForItem(at: indexPath) {
        UIView.animate(withDuration: 0.3) {
            cell.transform = CGAffineTransform.identity // 还原为原始大小
        }
    }
}