I'm having trouble implementing dynamic UITableView inside UIScrollView, without sitting fixed height constraints to the UITableView it disappears and I don't want to make fixed height to it because it is receiving data from API and I don't know the count of them. What I want to achieve is the height of the UITableView should be dynamic not the UITableViewCell.
Here is my code:
RecipesDetailsView:
class RecipesDetailsView: UIView {
override init(frame: CGRect) {
super.init(frame: frame)
layoutUI()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func scrollViewDidScroll(_ scrollView: UIScrollView) {
if scrollView == self.scrollView {
ingredientsTableView.isScrollEnabled = (self.scrollView.contentOffset.y >= 200)
}
if scrollView == self.ingredientsTableView {
self.ingredientsTableView.isScrollEnabled = (ingredientsTableView.contentOffset.y > 0)
}
}
lazy var scrollView: UIScrollView = {
let scrollView = UIScrollView()
scrollView.translatesAutoresizingMaskIntoConstraints = false
scrollView.backgroundColor = .customVeryLightGray()
scrollView.showsVerticalScrollIndicator = false
scrollView.alwaysBounceVertical = false
// scrollView.bounces = false
return scrollView
}()
lazy var containerView: UIView = {
let containerView = UIView()
containerView.backgroundColor = .clear
containerView.translatesAutoresizingMaskIntoConstraints = false
return containerView
}()
lazy var recipeTitleLabel: UILabel = {
let recipeTitleLabel = UILabel()
recipeTitleLabel.translatesAutoresizingMaskIntoConstraints = false
recipeTitleLabel.text = "Myanmar Traditional Fish Curry"
recipeTitleLabel.font = UIFont(name: "AvenirNext-DemiBold", size: 25)
recipeTitleLabel.textColor = .customDarkGray()
recipeTitleLabel.numberOfLines = 0
recipeTitleLabel.textAlignment = .left
return recipeTitleLabel
}()
lazy var recipeImage: UIImageView = {
let recipeImage = UIImageView()
recipeImage.contentMode = .scaleToFill
recipeImage.clipsToBounds = true
recipeImage.image = UIImage(named: "pizza")
recipeImage.layer.cornerRadius = 8.0
recipeImage.layer.masksToBounds = true
recipeImage.translatesAutoresizingMaskIntoConstraints = false
return recipeImage
}()
lazy var instructionLabel: UILabel = {
let instructionLabel = UILabel()
instructionLabel.text = "Instructions"
instructionLabel.font = UIFont(name: "AvenirNext-DemiBold", size: 16)
instructionLabel.textColor = .customDarkGray()
instructionLabel.textAlignment = .left
instructionLabel.translatesAutoresizingMaskIntoConstraints = false
return instructionLabel
}()
lazy var instructionsTextView: UITextView = {
let instructionsTextView = UITextView()
instructionsTextView.text = "Myanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmarMyanmar Traditional Fish CurryMyanmar Traditional Fish CurryMyanmar"
instructionsTextView.textColor = .customLightDarkGray()
instructionsTextView.font = UIFont(name: "AvenirNext-Regular", size: 14)
instructionsTextView.textAlignment = .left
instructionsTextView.isEditable = false
instructionsTextView.isScrollEnabled = false
instructionsTextView.translatesAutoresizingMaskIntoConstraints = false
return instructionsTextView
}()
lazy var ingredientsLabel: UILabel = {
let ingredientsLabel = UILabel()
ingredientsLabel.text = "Ingredients"
ingredientsLabel.font = UIFont(name: "AvenirNext-DemiBold", size: 16)
ingredientsLabel.textColor = .customDarkGray()
ingredientsLabel.textAlignment = .left
ingredientsLabel.translatesAutoresizingMaskIntoConstraints = false
return ingredientsLabel
}()
lazy var buyingIngredientsButton: UIButton = {
let buyingIngredientsButton = UIButton(type: .system)
buyingIngredientsButton.translatesAutoresizingMaskIntoConstraints = false
buyingIngredientsButton.setTitle("Start buying", for: .normal)
buyingIngredientsButton.setTitleColor(.CustomGreen(), for: .normal)
buyingIngredientsButton.titleLabel?.font = UIFont(name: "AvenirNext-DemiBold", size: 12)
return buyingIngredientsButton
}()
lazy var numberOfGredientsLabel: UILabel = {
let numberOfGredientsLabel = UILabel()
numberOfGredientsLabel.text = "Ingredients"
numberOfGredientsLabel.font = UIFont(name: "AvenirNext-Regular", size: 14)
numberOfGredientsLabel.textColor = .customDarkGray()
numberOfGredientsLabel.textAlignment = .left
numberOfGredientsLabel.translatesAutoresizingMaskIntoConstraints = false
return numberOfGredientsLabel
}()
lazy var ingredientsTableView: UITableView = {
let ingredientsTableView = UITableView()
ingredientsTableView.translatesAutoresizingMaskIntoConstraints = false
ingredientsTableView.delegate = self
ingredientsTableView.dataSource = self
ingredientsTableView.rowHeight = UITableView.automaticDimension
ingredientsTableView.estimatedRowHeight = 100
ingredientsTableView.estimatedRowHeight = 0
ingredientsTableView.estimatedSectionHeaderHeight = 0
ingredientsTableView.estimatedSectionFooterHeight = 0
ingredientsTableView.showsVerticalScrollIndicator = false
ingredientsTableView.separatorStyle = .none
ingredientsTableView.backgroundColor = .white
ingredientsTableView.bounces = true
ingredientsTableView.isScrollEnabled = false
ingredientsTableView.register(IngredientsTableViewCell.self, forCellReuseIdentifier: "IngredientsTableViewCell")
ingredientsTableView.frame.size.height = ingredientsTableView.contentSize.height
return ingredientsTableView
}()
func setupScrollViewConstraints() {
NSLayoutConstraint.activate([
scrollView.topAnchor.constraint(equalTo: topAnchor),
scrollView.bottomAnchor.constraint(equalTo: bottomAnchor),
scrollView.leadingAnchor.constraint(equalTo: leadingAnchor),
scrollView.trailingAnchor.constraint(equalTo: trailingAnchor)
])
}
func setupContainerViewConstraints() {
NSLayoutConstraint.activate([
containerView.topAnchor.constraint(equalTo: scrollView.topAnchor),
containerView.bottomAnchor.constraint(equalTo: scrollView.bottomAnchor),
containerView.leadingAnchor.constraint(equalTo: scrollView.leadingAnchor),
containerView.trailingAnchor.constraint(equalTo: scrollView.trailingAnchor),
containerView.widthAnchor.constraint(equalTo: scrollView.widthAnchor, multiplier: 1)
])
}
func setupRecipeTitleLabelConstraints() {
NSLayoutConstraint.activate([
recipeTitleLabel.topAnchor.constraint(equalTo: containerView.topAnchor, constant: 16),
recipeTitleLabel.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
recipeTitleLabel.trailingAnchor.constraint(lessThanOrEqualTo: containerView.trailingAnchor, constant: -16)
])
recipeTitleLabel.setContentHuggingPriority(.init(240.0), for: .horizontal)
recipeTitleLabel.setContentCompressionResistancePriority(.init(740.0), for: .horizontal)
}
func setupRecipeImageConstraints() {
NSLayoutConstraint.activate([
recipeImage.topAnchor.constraint(equalTo: recipeTitleLabel.bottomAnchor, constant: 16),
recipeImage.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
recipeImage.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -16),
recipeImage.heightAnchor.constraint(equalToConstant: frame.height / 4)
])
}
func setupInstructionsLabelConstraints() {
NSLayoutConstraint.activate([
instructionLabel.topAnchor.constraint(equalTo: recipeImage.bottomAnchor, constant: 16),
instructionLabel.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
instructionLabel.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -16)
])
}
func setupInstructionsTextViewConstraints() {
NSLayoutConstraint.activate([
instructionsTextView.topAnchor.constraint(equalTo: instructionLabel.bottomAnchor, constant: 8),
instructionsTextView.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
instructionsTextView.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -16)
])
}
func setupIngredientsLabelConstraints() {
NSLayoutConstraint.activate([
ingredientsLabel.topAnchor.constraint(equalTo: instructionsTextView.bottomAnchor, constant: 16),
ingredientsLabel.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
])
}
func setupBuyingIngredientsButtonConstraints() {
NSLayoutConstraint.activate([
buyingIngredientsButton.centerYAnchor.constraint(equalTo: ingredientsLabel.centerYAnchor),
buyingIngredientsButton.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -16)
])
}
func setupNumberOfIngredientsLabelConstraints() {
NSLayoutConstraint.activate([
numberOfGredientsLabel.topAnchor.constraint(equalTo: ingredientsLabel.bottomAnchor, constant: 8),
numberOfGredientsLabel.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
])
}
func setupIngredientsTableViewConstraints() {
NSLayoutConstraint.activate([
ingredientsTableView.topAnchor.constraint(equalTo: numberOfGredientsLabel.bottomAnchor, constant: 8),
ingredientsTableView.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 16),
ingredientsTableView.trailingAnchor.constraint(equalTo: containerView.trailingAnchor, constant: -16),
ingredientsTableView.bottomAnchor.constraint(equalTo: containerView.bottomAnchor, constant: -16),
// ingredientsTableView.heightAnchor.constraint(equalTo: ingredientsTableView.heightAnchor)
])
}
func addSubViews() {
addSubview(scrollView)
scrollView.addSubview(containerView)
containerView.addSubview(recipeTitleLabel)
containerView.addSubview(recipeImage)
containerView.addSubview(instructionLabel)
containerView.addSubview(instructionsTextView)
containerView.addSubview(ingredientsLabel)
containerView.addSubview(buyingIngredientsButton)
containerView.addSubview(numberOfGredientsLabel)
containerView.addSubview(ingredientsTableView)
}
func layoutUI() {
addSubViews()
setupScrollViewConstraints()
setupContainerViewConstraints()
setupRecipeTitleLabelConstraints()
setupRecipeImageConstraints()
setupInstructionsLabelConstraints()
setupInstructionsTextViewConstraints()
setupIngredientsLabelConstraints()
setupBuyingIngredientsButtonConstraints()
setupNumberOfIngredientsLabelConstraints()
setupIngredientsTableViewConstraints()
}
}
extension RecipesDetailsView: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 5
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "IngredientsTableViewCell", for: indexPath) as! IngredientsTableViewCell
cell.theNumberOfIngredient.text = "1"
cell.theNameOfIngredient.text = "Tomato"
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableView.automaticDimension
}
}
IngredientsTableViewCell:
class IngredientsTableViewCell: UITableViewCell {
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
layoutUI()
// selectionStyle = .none
// self.backgroundColor = .white
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
lazy var theNumberOfIngredient: UILabel = {
let theNumberOfIngredient = UILabel()
theNumberOfIngredient.text = "Ingredients"
theNumberOfIngredient.font = UIFont(name: "AvenirNext-DemiBold", size: 16)
theNumberOfIngredient.textColor = .customDarkGray()
theNumberOfIngredient.textAlignment = .left
theNumberOfIngredient.translatesAutoresizingMaskIntoConstraints = false
return theNumberOfIngredient
}()
lazy var theNameOfIngredient: UILabel = {
let theNameOfIngredient = UILabel()
theNameOfIngredient.text = "Ingredients"
theNameOfIngredient.font = UIFont(name: "AvenirNext-DemiBold", size: 16)
theNameOfIngredient.textColor = .customDarkGray()
theNameOfIngredient.textAlignment = .left
theNameOfIngredient.translatesAutoresizingMaskIntoConstraints = false
return theNameOfIngredient
}()
func setupTheNumberOfIngredientConstraints() {
NSLayoutConstraint.activate([
theNumberOfIngredient.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 0),
theNumberOfIngredient.centerYAnchor.constraint(equalTo: centerYAnchor)
])
}
func setupTheNameOfIngredientConstraints() {
NSLayoutConstraint.activate([
theNameOfIngredient.leadingAnchor.constraint(equalTo: theNumberOfIngredient.leadingAnchor, constant: 16),
theNameOfIngredient.centerYAnchor.constraint(equalTo: theNumberOfIngredient.centerYAnchor)
])
}
func addSubviews() {
addSubview(theNumberOfIngredient)
addSubview(theNameOfIngredient)
}
func layoutUI() {
addSubviews()
setupTheNumberOfIngredientConstraints()
setupTheNameOfIngredientConstraints()
}
}
First, this is the wrong approach, I think you should create UITableView with grouped style and in the section 0 add your custom UI and the section 1 apply IngredientsTableViewCell with the data From API.
otherwise, you can set static height for UITableView Mathematically.