How to set fix ImageView size inside TableViewCell programmatically? - ios

Question

I have this issue wherein I need to fix the size on an image inside a tableviewcell. The image below shows that the image size in not uniform.
Here are the codes I used.
if noteImageIsAvailable == true {
if let imageData = assignedNotePhoto?.photoData {
if let image = Utilities.resizePictureImage(UIImage(data: imageData as Data)) {
//added fix
cell.imageView?.frame.size = CGSize(width: 36, height: 24)
cell.imageView?.clipsToBounds = true
//-----
cell.imageView?.contentMode = .scaleAspectFill
cell.imageView?.image = image
}
}
}
I read an answer here in stackoverflow. It says I need to add clipToBounds but unfortunately it doesn't work. Please help me solve this issue. Thank you
TableView Code
extension SettingNoteViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return Menu.SettingNote.items.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: .subtitle, reuseIdentifier: "reuseIdentifier")
let keyPass = KeyHelper.NoteSetting.info[indexPath.row]
let assignedNotePhoto = self.getNotePhoto(key: keyPass.key)
let assignedNoteTextData = self.getNoteTextData(key: keyPass.key)?.value
cell.contentView.backgroundColor = .black
cell.textLabel?.textColor = .white
cell.detailTextLabel?.textColor = .white
cell.detailTextLabel?.numberOfLines = 0
let noteImageIsAvailable = assignedNotePhoto?.photoData != nil
if noteImageIsAvailable == true {
if let imageData = assignedNotePhoto?.photoData {
if let image = Utilities.resizePictureImage(UIImage(data: imageData as Data)) {
//added fix
cell.imageView?.translatesAutoresizingMaskIntoConstraints = false
cell.imageView?.frame.size = CGSize(width: 36, height: 24)
cell.imageView?.clipsToBounds = true
//-----
cell.imageView?.contentMode = UIView.ContentMode.scaleAspectFit
cell.imageView?.image = image
}
}
}
cell.textLabel?.text = Menu.SettingNote.items[indexPath.row].value
cell.detailTextLabel?.text = assignedNoteTextData ?? "noteSettingSubTitle".localized
return cell
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.destination is InputMemoViewController {
let vc = segue.destination as! InputMemoViewController
vc.infoNoteKey = self.infoNoteKeyToPass
vc.infoLabelText = self.infoLabelToPass
}
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.infoNoteKeyToPass = KeyHelper.NoteSetting.info[indexPath.row].key
self.infoLabelToPass = KeyHelper.NoteSetting.info[indexPath.row].label
self.performSegue(withIdentifier: "showInputMemo", sender: self)
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 80
}
}
The image below was the output when I applied #Kishan Bhatiya solution.
The first and second image is a landscape photo and the third image is in portrait

Answer 1

When you add cell.imageView?.translatesAutoresizingMaskIntoConstraints = false then frame has no effect, so try to use any one
let marginguide = contentView.layoutMarginsGuide
//imageView auto layout constraints
cell.imageView?.translatesAutoresizingMaskIntoConstraints = false
let marginguide = cell.contentView.layoutMarginsGuide
cell.imageView?.topAnchor.constraint(equalTo: marginguide.topAnchor).isActive = true
cell.imageView?.leadingAnchor.constraint(equalTo: marginguide.leadingAnchor).isActive = true
cell.imageView?.heightAnchor.constraint(equalToConstant: 40).isActive = true
cell.imageView?.widthAnchor.constraint(equalToConstant: 40).isActive = true
cell.imageView?.contentMode = .scaleAspectFill
cell.imageView?.layer.cornerRadius = 20 //half of your width or height
And it's better to set constraints in UITableViewCell

Answer 2

you know your imageview size. So you can resize your UIImage to imageView size.
extension UIImage{
func resizeImageWithHeight(newW: CGFloat, newH: CGFloat) -> UIImage? {
UIGraphicsBeginImageContext(CGSize(width: newW, height: newH))
self.draw(in: CGRect(x: 0, y: 0, width: newW, height: newH))
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
}
use like that
let img = originalImage.resizeImageWithHeight(newW: 40, newH: 40)
cell.imageView?.image = img
Here, 40 40 is my imageview size

Answer 3

I have the same problem, scaleAspectFit is solved for me. you can try it
cell.imageView.contentMode = UIViewContentMode.scaleAspectFit