ios - 从另一种方法 iOS 更新 UITableViewCell 中的值

Question

我有方法调用

- (void)redeemOfferService
{
  // in this method i want access OffersBoughtCellTableViewCell,
      how to access tableview cell here ?
  // want to update selected tableview cell values
  // here i am getting selected cell details in selectedOfferBoughtObj which 
     is actually NSObject in that i am having five string values  
     i want show that values in my tableview cell how can i ?
  //

}

上面的方法调用自

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex: (NSInteger)buttonIndex 
{
    if(alertView.tag == 10)
    {
       if(buttonIndex == 0)
       {
        [self redeemOfferService];
       }
    }
}

当我点击 tableview 单元格时调用此方法，即

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    UIAlertView *logoutAlert = [[UIAlertView alloc]initWithTitle:@"Are you sure you want to redeem?" message:nil delegate:self cancelButtonTitle:@"Yes" otherButtonTitles:@"No", nil];
    logoutAlert.tag  = 10;
    [logoutAlert show];
}

我知道有办法，我们可以通过点击按钮发送发件人，但我想要在上面的场景中。

Answer 1

在你的类 NSIndexPath 类型中使用一个全局变量，并在选定的存储中使用你选择的索引路径

NSIndexPath *selectedIndexPath; //declare it as a global

在 didSelect 中赋值后

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath
{
UIAlertView *logoutAlert = [[UIAlertView alloc]initWithTitle:@"Are you sure you want to redeem?" message:nil delegate:self cancelButtonTitle:@"Yes" otherButtonTitles:@"No", nil];
logoutAlert.tag  = 10;
[logoutAlert show];
selectedIndexPath = indexPath;
}

然后在你的函数中这样改变

    - (void)redeemOfferService
{
     OffersBoughtCellTableViewCell * _selectedCell = [offersTableView cellForRowAtIndexPath:selectedIndexPath]; //Now Its your selected cell Try this . 

}

它会很好地尝试一次并恢复