I am loading a number of remote images with Kingfisher and having significant difficulty getting them to load correctly into a Tableview with cells of dynamic heights. My goal is to have the images always be the full width of the screen and of a dynamic height, how can this be achieved?
I asked a related question previously which led to understanding the basic layout using a stack view: SnapKit: How to set layout constraints for items in a TableViewCell programatically
So I've built something like the following:
With the following code (some parts removed for brevity):
// CREATE VIEWS
let containerStack = UIStackView()
let header = UIView()
let headerStack = UIStackView()
let title = UILabel()
let author = UILabel()
var previewImage = UIImageView()
...
// KINGFISHER
let url = URL(string: article.imageUrl)
previewImage.kf.indicatorType = .activity
previewImage.kf.setImage(
with: url,
options: [
.transition(.fade(0.2)),
.scaleFactor(UIScreen.main.scale),
.cacheOriginalImage
]) { result in
switch result {
case .success(_):
self.setNeedsLayout()
UIView.performWithoutAnimation {
self.tableView()?.beginUpdates()
self.tableView()?.endUpdates()
}
case .failure(let error):
print(error)
}
}
...
// LAYOUT
containerStack.axis = .vertical
headerStack.axis = .vertical
headerStack.spacing = 6
headerStack.addArrangedSubview(title)
headerStack.addArrangedSubview(author)
header.addSubview(headerStack)
containerStack.addArrangedSubview(header)
containerStack.addSubview(previewImage)
addSubview(containerStack)
headerStack.snp.makeConstraints { make in
make.edges.equalToSuperview().inset(20)
}
containerStack.snp.makeConstraints { make in
make.edges.equalToSuperview()
}
Without a constraint for imageView
, the image does not appear.
With the following constraint, the image does not appear either:
previewImage.snp.makeConstraints { make in
make.leading.trailing.bottom.equalToSuperview()
make.top.equalTo(headerView.snp.bottom).offset(20)
}
With other attempts, the image is completely skewed or overlaps the labels/other cells and images.
Finally, following this comment: With Auto Layout, how do I make a UIImageView's size dynamic depending on the image? and this gist: https://gist.github.com/marcc-orange/e309d86275e301466d1eecc8e400ad00 and with these constraints make.edges.equalToSuperview()
I am able to get the images to display at their correct scales, but they completely cover the labels.
Ideally it would look something like this: