Ios 单击后如何取消突出显示UICollectionViewCell？

我在我的ViewController A中应用了这些代码。单击UICollectionViewCell后，它将推送到ViewController B。如果返回到ViewController A，如何取消突出显示的单元格

- (void)collectionView:(UICollectionView *)collectionView didHighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath];
    cell.contentView.backgroundColor = ThemeLightGrayColor;
    [collectionView deselectItemAtIndexPath:indexPath animated:NO];
}

更新：-

请查找以下代码（didselectItemAtIndexPath和cellForItemAtIndexPath）以供参考：-

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
    [collectionView deselectItemAtIndexPath:indexPath animated:YES];
    if (indexPath.section == 0) 
    {
        _productID = [_aryWishlist[indexPath.row]valueForKey:@"product_id"];

       dispatch_sync(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
            NSString *url_string2 = [NSString stringWithFormat: @"http://api.XXX.com/api/product/product_details/%@",_productID];
            NSData *data2 = [NSData dataWithContentsOfURL: [NSURL URLWithString:url_string2]];
            productDetailsAry = [NSJSONSerialization JSONObjectWithData:data2 options:kNilOptions error:&error];

        });

        Product_ViewController *prodVC = [[Product_ViewController alloc] init];

        [self.navigationController pushViewController:prodVC animated:YES];
    }
    else
    {
    }
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    UICollectionViewCell *gridcell = nil;
        if(_aryWishlist.count > 0)
        {
            WishlistCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:WishlistCellID forIndexPath:indexPath];

                [cell.sameButton setTitle:[_aryWishlist [indexPath.row]valueForKey:@"condition"] forState:UIControlStateNormal];
                if([[_aryWishlist[indexPath.row]valueForKey:@"price_discount"] isEqual:@""]){  //No Price Discount

                }

                cell.removeWishlistClick = ^{

                    NSString *url_string = [NSString stringWithFormat: @"http://api.XXX.com/api/product/wishlist_delete/%@",[_aryWishlist [indexPath.row]valueForKey:@"user_wishlist_id"]];
                    [self.manager DELETE:url_string parameters:nil success:^(NSURLSessionDataTask *task, id responseObject) {

                        [self.collectionView reloadData];
                        [self viewDidLoad];
                    }
                                 failure:^(NSURLSessionDataTask *task, NSError *error) {

                                 }];

                };
            }
            gridcell = cell;

        }

Swift 4.1

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    collectionView.deselectItem(at: indexPath, animated: true)
    //perform segue
}

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问题是您正在为单元格设置背景色，无论是否选中。如果要在选定单元格时使用自定义背景色，则有两个选项：

1-使用具有所需背景颜色的单元格的自定义视图：

检查

2-覆盖单元格中选定属性的setter

- (void)setSelected:(BOOL)selected {
    [super setSelected:selected];

    if (selected) {
        self.contentView.backgroundColor = ThemeLightGrayColor;
    } else {
        self.contentView.backgroundColor = UIColor.clearColor();
    }
}

并删除：

cell.contentView.backgroundColor = ThemeLightGrayColor;

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在viewwillappearHi RajeshKumar中重新加载collectionview，尝试过但没有成功，有什么想法？单击单元格后，您将按Viewcontroller B，然后为什么要设置单元格的背景色？嗨，Nirav，我的预期结果是在用户按下时高亮显示单元格