在基於單元格索引的tableview單元格中放置進度視圖

Question

我是iphone新手。我有一個小問題，那就是我有一個CustomCell類，因爲我已經聲明瞭所有我需要的元素，如下所示

// CustomCell.h 

這裏在這個類我設置的getter和setter方法來TitleLabel，PercentageLabel，ProgressView，downloadButton

// CustomCell.m 

這裏在這個類的框架設置爲高於一切，並設置圖像的下載按鈕也在這裏

我的輸出屏幕的截屏

//在我的表視圖我有一個下載按鈕，當我們點擊下面的方法將執行

-(void)downloadButtonClicked:(id)sender 
{ 
    NSLog(@"download button clicked"); 
    int index = [sender tag]; 
    NSLog(@"index of the cell is %d",index); 
    UIButton *button = (UIButton*)sender; 

    UITableViewCell *cell = (UITableViewCell *)[[button superview] superview]; 

    UILabel *titleLabel = (UILabel *)[cell viewWithTag:100]; 

    NSLog(@"label text =%@",titleLabel.text); 

    UIView *senderButton = (UIView*) sender; 
    NSIndexPath *indexPath = [tableView indexPathForCell: (UITableViewCell*)[[senderButton superview]superview]]; 
    NSLog(@"indexpath is %d",indexPath.row); 

    CustomCell *customCell = [[CustomCell alloc]init]; 
    progressView = [[UIProgressView alloc]init]; 
    // [customCell.contentView insertSubview:progressView atIndex:indexPath.row]; 
    [customCell.contentView addSubview:progressView]; 

    selectedBookTitle = titleLabel.text; 

    NSString* documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; 


    NSMutableArray *allDownloadLinks; 
    biblePlayerViewController = [[BiblePlayerViewController alloc]init]; 
    allDownloadLinks = [biblePlayerViewController allDownloadLinks]; 
    NSLog(@"all Download Links are %@",allDownloadLinks); 

    biblePlayerViewController.indexOfSelectedBookTitle = [[appDelegate getBookNames]indexOfObject:selectedBookTitle]; 

    Download* download = [Download downloadWithTitle:selectedBookTitle url:[NSURL URLWithString:[NSString stringWithFormat:@"http://www.audiotreasure.com/%@.zip",[allDownloadLinks objectAtIndex:(biblePlayerViewController.indexOfSelectedBookTitle)]]]PathtoSave:documentsPath]; 
    [[DownloadManager sharedDownloadManager] queueDownload: download]; 


} 

//在的cellForRowAtIndexPath的tableview委託方法我這樣

- (UITableViewCell *)tableView:(UITableView *)_tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 
    CustomCell *cell = [_tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 

    if (cell == nil) 
    { 
     cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier]; 

    }  
    NSLog(@"indexpath.row is %d",indexPath.row); 
    NSLog(@"downloadmanager is %d",[[[DownloadManager sharedDownloadManager]getDownloads]count]); 
    /* if (indexPath.row<[[[DownloadManager sharedDownloadManager] getDownloads]count]) 
    { 
     cell.TitleLabel.text = ((Download*)[[[DownloadManager sharedDownloadManager] getDownloads] objectAtIndex:indexPath.row]).title_;  
     cell.ProgressView.progress = (float)(((Download*)[[[DownloadManager sharedDownloadManager] getDownloads] objectAtIndex:indexPath.row]).PercentageDownloaded_)/100.0f; 
     cell.PercentageLabel.text = [NSString stringWithFormat:@"%d %%",((Download*)[[[DownloadManager sharedDownloadManager] getDownloads] objectAtIndex:indexPath.row]).PercentageDownloaded_];  
    } 
    else 
    { 
     [tableView reloadData]; 
    }*/ 
    NSString *titleLabel = [[appDelegate getBookNames]objectAtIndex:indexPath.row]; 
    cell.TitleLabel.text = titleLabel; 
    cell.downloadButton.tag = indexPath.row; 
    NSLog(@"tag is %d",cell.downloadButton.tag); 
    [cell.downloadButton addTarget:self action:@selector(downloadButtonClicked:) forControlEvents:UIControlEventTouchUpInside]; 

    return cell; 
} 

我的問題都寫代碼是我66個細胞在截屏的tableview有一個名爲Revelation.It BOOKNAME有第66單元在我的tableview（指數當我單擊該單元格中的下載按鈕時，我必須僅在該特定單元格中顯示進度視圖（第65個單元格）。我已每1秒重新加載表格視圖，因爲在放置進度視圖之後，我們必須顯示該單元格中進度視圖的進度。那麼，我們如何在該特定單元格索引中放置進度視圖。

Answer 1

爲什麼不從一開始就在單元格中添加進度視圖？ 最初是隱藏的，當你觸摸下載按鈕時，你告訴單元格顯示它。

我看到你存儲在下載按鈕標記細胞的indexPath.row。你可以使用它來找出在下面選擇了什麼樣的單元格。

NSIndexPath *cellIndexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0]; 
CustomCell *cell = (CustomCell *)[tableView cellForRowAtIndexPath:nowIndex]; 
[cell showProgressBar]; 

我寫了我頭上的代碼..沒有測試它。