How to find the height and width of image and fit the tableviewcell with aspect ratio?

Question

I have stretched images displayed in TableViewCell. I need to find the height and width of image from image URL. I need to find the aspect ratio and fit the image on the cell according to the height of dynamic cell in Swift 4.

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: CellIdentifier.ManCell) as! ManCell
    let image = self.posts[indexPath.row]["thumbnail_images"]["medium_large"]["url"].stringValue

    let cleanString = removeHtmlTagsFromResponse(index: indexPath.row)
    cell.nutriTitle.text = self.posts[indexPath.row]["title"].stringValue
    print("labels: \(self.posts[indexPath.row]["title"].stringValue)")

    cell.nutriDetail.text = cleanString
    let lCount = calculateHeightOfLable(cellLabel: cell.nutriDetail)
    print("string: \(cleanString)")
    print("HeightCount: \(lCount)")
    cell.nutriImage.sd_setImage(with: URL(string: image), placeholderImage: UIImage(named: "no_image"))
    let heightContentSize = cell.bounds.height
    print("HeightContentSize= ",heightContentSize)
    return cell
}

Josh Homann Josh Homann · Accepted Answer · 2018-11-29T09:05:17

It looks like you are using SDWebImage to load your images from a URL. In the documentation you will find that there is another method on UIImage called: sd_setImageWithURL:placeholderImage:options:completed: which takes a completion handler with 4 parameters: image: UIImage, error: NSError, isCache: Bool, and url: URl. Use the first parameter to get the size of the image. Note that this is asynchronous; you don't get the size until the image is downloaded (assuming you don't already have it in the cache), so then cell may resize if you are dynamically sizing it.

How to find the height and width of image and fit the tableviewcell with aspect ratio?

1 Answers