滚动 tableview 时更改计数值 [英] Count value is changed when tableview is scrolling

问题描述

这是我的CellForRowAtIndexPath代码

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;
{


static NSString *simpleTableIdentifier = @"PickAClassCell";

cell = (PickAClassCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];

if (cell == nil)
{
    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"PickAClassCell" owner:self options:nil];
    cell = [nib objectAtIndex:0];

}
cell.CountLabel.tag=1000;
[cell.PlusCount addTarget:self action:@selector(PlusButtonSelect :)forControlEvents:UIControlEventTouchUpInside];
 return cell;
}

-(void)PlusButtonSelect :(UIButton *)sender
{
UILabel *label1 = (UILabel *)[sender.superview viewWithTag:1000];
    NSLog(@"%@",label1);


        int count = [label1.text intValue];

        count = count + 1;

    NSString *Strcount= [NSString stringWithFormat:@"%d",count];



    label1.text=Strcount;
}

当我单击加号按钮时，计数值会增加，但我的问题是当我滚动 tableview 时，添加的计数值为零(默认位置).

when i click the plus button count value is increased but my problem is when i scrolling the tableview added count value goes to zero (default position).

推荐答案

在 cellForRowAtIndexPath

if ([self.selectedRows containsObject:indexPath])
{
    // set count values here 
    cell.countLabel.text = @"";
    cell.textLabel.textColor = [UIColor grayColor];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
else
{
    //set the normal cells values
}

这里的 self.selectedRows 是一个数组，当用户点击加号或减号按钮时，你必须在其中存储 cellIndexPath 值.

Here self.selectedRows is an array where you have to store cellIndexPath values when user clicked plus or minus button.

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