UITableViewCell作为进度指示器 [英] UITableViewCell as progress indicator

问题描述

我正在尝试设置整个单元格背景视图以显示进度指示器.

I am trying to set the whole cell background view to show a progress indicator.

if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"];
    UIProgressView *progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];
    cell.backgroundView = progressView;
    [progressView setFrame:cell.bounds];
}

这不会将进度条设置为整个单元格，而是仅设置单元格的顶部.我应该如何使细胞透明吗?我如何使用整个单元格背景以颜色填充显示进度，而单元格上的文本仍然可见?

this does not set the progress bar to the whole cell, but just the top part of the cell. Should I make the cell transparent some how ? How can I use the whole cell background to show progress with a color fill, while text on the cell remain visible ?

推荐答案

您需要设置UIProgressView的高度并将其添加为单元格的内容子视图，如下所示:

You need to set the height of your UIProgressView and add it as a content subview for you cell, like this:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"Cell"];
        UIProgressView *progressView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];
        //setting height of progressView
        CGAffineTransform transform = CGAffineTransformMakeScale(cell.frame.size.width, cell.frame.size.height);
        progressView.transform = transform;
        [cell.contentView addSubview:progressView];

        //your text
        cell.textLabel.text = @"Cell Text Label";
        cell.detailTextLabel.text = @"Cell Detail Label";
    }

    return cell;
}

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