ios - 计算 TableView 中包含字符串的行数始终返回 1

Question

我的应用程序动态添加 TableView 行，这些行接收显示为单元格字符串(除了描述)的通过/失败结果。我正在尝试计算文本中收到失败结果的单元格数量。我的问题是我的 NSLog(@"Counted times: %i", times); 总是返回 1 而不是将它们相加。

 cell.textLabel.text = [NSString stringWithFormat:@"Appliance %@:  %@", ((Circuit *)[self.circuits objectAtIndex:indexPath.row]).circuitReference,((Circuit *)[self.circuits objectAtIndex:indexPath.row]).rcdTestButton];
    if(cell.textLabel.text && [cell.textLabel.text rangeOfString:@"Fail"].location != NSNotFound){
        cell.textLabel.textColor = [UIColor redColor];

        NSString *string = @"str";
        int times = [[string componentsSeparatedByString:@"-"] count];

        NSLog(@"Counted times: %i", times);

    }

更新代码

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
   NSString *string = @"str";
   int times = [[string componentsSeparatedByString:@"str"] count];


static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if (indexPath.section == 0) {
    cell.textLabel.text = @"Summary of appliance testing";
} else {
    //Appliance label text
    cell.textLabel.text = [NSString stringWithFormat:@"Appliance %@:  %@", ((Circuit *)[self.circuits objectAtIndex:indexPath.row]).circuitReference,((Circuit *)[self.circuits objectAtIndex:indexPath.row]).rcdTestButton];
    if(cell.textLabel.text && [cell.textLabel.text rangeOfString:@"Fail"].location != NSNotFound){
        cell.textLabel.textColor = [UIColor redColor];

        NSLog(@"Counted times: %i", times);

     }

        cell.imageView.image = [UIImage imageNamed:@""];
}
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

return cell;
 }

Answer 1

看起来您正在循环内初始化计数器，循环不断地重置它。在循环之前声明变量，然后在循环内简单地迭代它。