Question

我正在使用一个UICollectionViewCell子类，它有两个按钮“add to cart”和“Remove”。我已经编程显示已经添加到购物车的那个单元格上的删除，但是collectionView只更改了最后添加的产品的标题。我认为重复使用该单元存在一些问题。

这是我的cellForItemAtIndexPath

- (ShoppingCellCollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {

    ShoppingCellCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"ShoppingViewCell" forIndexPath:indexPath];

     NSString *imgURLSTR = [NSString stringWithFormat:@"%@%@",IMAGE_BASEURL,[[[data valueForKey:@"products"] valueForKey:@"imagepath"] objectAtIndex:indexPath.row]];
    imgURLSTR = [imgURLSTR stringByReplacingOccurrencesOfString:@"\\" withString:@"/"];
    [cell.itemImageView sd_setImageWithURL:[NSURL URLWithString:imgURLSTR] placeholderImage:[UIImage imageNamed:@"telebuy_logo.png"]];

    [cell.itemTitle setText:[NSString stringWithFormat:@"%@",[[[data valueForKey:@"products"] valueForKey:@"desc"] objectAtIndex:indexPath.row]]];
    [cell.rateLabel setText:[NSString stringWithFormat:@"INR %@",[[[data valueForKey:@"products"] valueForKey:@"salevalue"] objectAtIndex:indexPath.row]]];

    [cell.featureButtonOutlet addTarget:self action:@selector(featuresBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
    [cell.featureButtonOutlet setTag:indexPath.row];

    NSDictionary*dict = [[data valueForKey:@"products"]objectAtIndex:indexPath.item];
    NSString* singleProductFromAllProducts = [dict valueForKey:@"id"];

    for (int i = 0 ; i<dataC.count; i++) {

        if ([singleProductFromAllProducts isEqualToString:[[dataC objectAtIndex:i]valueForKey:@"prodid"]]) {

            NSLog(@"Item is %@",[[dataC objectAtIndex:i]valueForKey:@"prodid"]);
            NSLog(@"%@",singleProductFromAllProducts);

            [cell.addToCartButtonOutlet setTitle:@"Remove" forState:UIControlStateNormal];
            cell.addToCartButtonOutlet.backgroundColor = [UIColor grayColor];

        }
        else
        {
            [cell.addToCartButtonOutlet setTitle:@"Add To Cart" forState:UIControlStateNormal];
            cell.addToCartButtonOutlet.backgroundColor = [UIColor redColor];
        }
    }
    [cell.addToCartButtonOutlet addTarget:self action:@selector(addToCartBtnPressed:) forControlEvents:UIControlEventTouchUpInside];
    [cell.addToCartButtonOutlet setTag:indexPath.row];

    return cell;
}

其中addToCartButtonOutlet是按钮插座，dataC是添加到购物车的产品数组，“singleProductFromAllProducts”是indexPath的产品。我将每个产品与dataC的产品进行比较，如果产品在dataC中可用，然后更改按钮插座以进行删除，但它仅显示仅在一个产品上删除。

这是我的自定义类UICollectionViewCell

#import "ShoppingCellCollectionViewCell.h"
#import "AppDelegate.h"
#import "ShoppingViewController.h"

@implementation ShoppingCellCollectionViewCell

- (void)awakeFromNib {
    // Initialization code

    _itemImageView.layer.borderWidth = 0.5;
    _itemImageView.layer.borderColor = [UIColor lightGrayColor].CGColor;


    [_addToCartButtonOutlet setBackgroundColor:[APPDELEGATE colorFromHexString:@"#035098"]];
    [_addToCartButtonOutlet setBackgroundColor:[APPDELEGATE colorFromHexString:@"#ee1c25"]];
}

需要帮助。

collectionView拾取错误的数据

0 个答案: