购物车

一个超详细购物车的教程

cell.addBlock  = ^(UIButton *addBtn , NSIndexPath *indexPath){
    //取得商品现在的数量，点击加号进行count++
    int count = [WeakCell.NumLabel.text intValue];
        count ++;
    //当商品数量大于10，进行返回
    if (count > 10) return;
    WeakCell.NumLabel.text = [NSString stringWithFormat:@"%d",count];
    model.number = count;
    //NSLog(@"以前%@",_dataSoureArray);
 //   [_dataSoureArray replaceObjectAtIndex:indexPath.row withObject:model];
   //  NSLog(@"之后%@",_dataSoureArray);
    //当商品从1变成2时 自动添加选中
    if (model.isSelected == NO) {
        model.isSelected = !model.isSelected;
        //刷新单个cell
        [WeakTableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
        //将模型加入选中数组
        [WeakSelf.selectArray addObject:model];
        //防止剩下最后一个，全选按钮不更改问题
        if (WeakSelf.selectArray.count == WeakSelf.dataSoureArray.count) {
            WeakSelf.everyBtn.selected = YES;
        }else{
            WeakSelf.everyBtn.selected = NO;
        }
    }