Is it possible to place UIStackView in NavigationBar programmaticaly using swift? I want to place there StackView with two arranged stackviews. But when i do that , it shows nothing in navigation bar. If it is possible, please provide example. Thanks
Finally I found solution
let btnSort = UIButton(type: .system)
btnSort.frame = CGRect(x: 0, y: 0, width: 120, height: 40)
btnSort.tintColor = UIColor.white
btnSort.setImage(UIImage(named:"ic_controls_icon.png"), for: .normal)
btnSort.imageEdgeInsets = UIEdgeInsets(top: 6,left: -10,bottom: 6,right: 34)
btnSort.titleEdgeInsets = UIEdgeInsets(top: 0,left: 0,bottom: 0,right: 14)
btnSort.setTitle("SORT", for: .normal)
btnSort.layer.borderWidth = 1.0
btnSort.backgroundColor = UIColor.red //--> set the background color and check
btnSort.layer.borderColor = UIColor.white.cgColor
let btnControl = UIButton(type: .system)
btnControl.frame = CGRect(x: 0, y: 0, width: 120, height: 40)
btnControl.tintColor = UIColor.white
btnControl.setImage(UIImage(named:"ic_controls_icon.png"), for: .normal)
btnControl.imageEdgeInsets = UIEdgeInsets(top: 6,left: -10,bottom: 6,right: 34)
btnControl.titleEdgeInsets = UIEdgeInsets(top: 0,left: 0,bottom: 0,right: 14)
btnControl.setTitle("SORT", for: .normal)
btnControl.layer.borderWidth = 1.0
btnControl.backgroundColor = UIColor.red //--> set the background color and check
btnControl.layer.borderColor = UIColor.white.cgColor
let view = UIStackView(frame: CGRect(x: 0, y: 0, width: 300, height: 50))
view.axis = .horizontal
view.distribution = .fillEqually
view.spacing = 5
view.addArrangedSubview(btnSort)
view.addArrangedSubview(btnControl)
let mainTitleView = UIView(frame: CGRect(x: 0, y: 0, width: 300, height: 50))
mainTitleView.addSubview(view)
navigationItem.titleView = mainTitleView
You can make any UIView subclass (of which UIStackView is one) the navigation bar's title using your view controller's navigationItem.titleView property.
You can test this out in a playground…
import UIKit
import PlaygroundSupport
let vc = UIViewController()
vc.view.backgroundColor = .white
let nav = UINavigationController(rootViewController: vc)
let topLabel = UILabel()
topLabel.font = UIFont.boldSystemFont(ofSize: 20)
topLabel.text = "Hello"
let bottomLabel = UILabel()
bottomLabel.font = UIFont.systemFont(ofSize: 16)
bottomLabel.text = "World!"
let stackView = UIStackView(arrangedSubviews: [topLabel, bottomLabel])
stackView.axis = .vertical
vc.navigationItem.titleView = stackView
PlaygroundPage.current.liveView = nav.view
PlaygroundPage.current.needsIndefiniteExecution = true
var navTitle: String? = "Preview Checklist"
var navSubTitle: String? = "Edit Checklist >"
lazy var titleStackView: UIStackView = {
let titleLabel = UILabel()
titleLabel.textAlignment = .left
titleLabel.text = navTitle
//titleLabel.font = UIFont(name: "RawlineMedium-Regular", size:CGFloat(15))
titleLabel.textColor = .white
let subtitleLabel = UILabel()
subtitleLabel.textAlignment = .left
subtitleLabel.text = navSubTitle
//subtitleLabel.font = UIFont(name: "RawlineMedium-Regular", size:CGFloat(11))
subtitleLabel.textColor = .white
let stackView = UIStackView(arrangedSubviews: [ titleLabel, subtitleLabel])
stackView.axis = .vertical
stackView.backgroundColor = .blue
return stackView
}()
override func viewDidLoad() {
super.viewDidLoad()
self.navigationItem.titleView = titleStackView
}
Related
I have a custom UIView class called SortView with two radio buttons and neither of their respective selector functions are being called when I click on them. I have added an instance of the SortView class to a parent class with view.addView(). Here is my custom class:
class SortView: UIView {
// MARK: - Properties
lazy var driverSortRadioButton: UIButton = {
let button = UIButton(type: .system)
button.setImage(UIImage(named: "Radio Button - Unselected"), for: .normal)
button.setDimensions(height: 25, width: 25)
button.backgroundColor = .clear
button.contentMode = .scaleAspectFill
button.addTarget(self, action: #selector(handleDriverSortRadioButton), for: .touchUpInside)
return button
}()
lazy var pickupTimeSortRadioButton: UIButton = {
let button = UIButton(type: .system)
button.setImage(UIImage(named: "Radio Button - Unselected"), for: .normal)
button.setDimensions(height: 25, width: 25)
button.backgroundColor = .clear
button.contentMode = .scaleAspectFill
button.addTarget(self, action: #selector(handlePickupTimeSortRadioButton), for: .touchUpInside)
return button
}()
private let driverSortTitleLabel: UILabel = {
let label = UILabel()
label.text = "Sort by driver:"
label.textAlignment = .left
label.textColor = .white
label.font = UIFont(name: "AvenirNext-DemiBold", size: 18)
label.backgroundColor = .clear
return label
}()
private let pickupTimeSortTitleLabel: UILabel = {
let label = UILabel()
label.text = "Sort by pickup time:"
label.textAlignment = .left
label.textColor = .white
label.font = UIFont(name: "AvenirNext-DemiBold", size: 18)
label.backgroundColor = .clear
return label
}()
private let driverSortTextField: UITextField = {
let tf = UITextField()
tf.textColor = .black
tf.textAlignment = .center
tf.placeholder = "Louise"
tf.font = UIFont(name: "AvenirNext-DemiBold", size: 15)
tf.backgroundColor = UIColor(white: 0.95, alpha: 1.0)
tf.setWidth(width: 150)
tf.layer.cornerRadius = 5
return tf
}()
private let pickupTimeSortTextField: UITextField = {
let tf = UITextField()
tf.textColor = .black
tf.textAlignment = .center
tf.placeholder = "2:00pm"
tf.font = UIFont(name: "AvenirNext-DemiBold", size: 15)
tf.backgroundColor = UIColor(white: 0.95, alpha: 1.0)
tf.setWidth(width: 150)
tf.layer.cornerRadius = 5
return tf
}()
private enum radioButtonStates {
case driver
case pickupTime
}
private var radioButtonState = radioButtonStates.driver
// MARK: - Lifecycle
override init(frame: CGRect) {
super.init(frame: frame)
configureUI()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
// MARK: - Selectors
#objc func handleDriverSortRadioButton() {
print("DEBUG: driver sort radio button clicked")
if radioButtonState != .driver {
pickupTimeSortRadioButton.setImage(UIImage(named: "Radio Button - Unselected"), for: .normal)
pickupTimeSortTextField.isEnabled = false
pickupTimeSortTextField.text = ""
radioButtonState = .driver
driverSortRadioButton.setImage(UIImage(named: "Radio Button - Selected"), for: .normal)
driverSortTextField.isEnabled = true
driverSortTextField.text = ""
}
}
#objc func handlePickupTimeSortRadioButton() {
print("DEBUG: pickup time sort radio button clicked")
if radioButtonState != .pickupTime {
driverSortRadioButton.setImage(UIImage(named: "Radio Button - Unselected"), for: .normal)
driverSortTextField.isEnabled = false
driverSortTextField.text = ""
radioButtonState = .pickupTime
pickupTimeSortRadioButton.setImage(UIImage(named: "Radio Button - Selected"), for: .normal)
pickupTimeSortTextField.isEnabled = true
pickupTimeSortTextField.text = ""
}
}
// MARK: - Helper Functions
private func configureUI() {
let driverSortStackView = UIStackView(arrangedSubviews: [driverSortRadioButton,
driverSortTitleLabel,
driverSortTextField])
driverSortStackView.axis = .horizontal
driverSortStackView.distribution = .fill
driverSortStackView.spacing = 5
let pickupTimeSortStackView = UIStackView(arrangedSubviews: [pickupTimeSortRadioButton,
pickupTimeSortTitleLabel,
pickupTimeSortTextField])
pickupTimeSortStackView.axis = .horizontal
pickupTimeSortStackView.distribution = .fill
pickupTimeSortStackView.spacing = 5
let stackView = UIStackView(arrangedSubviews:[driverSortStackView,
pickupTimeSortStackView])
stackView.axis = .vertical
stackView.distribution = .fill
stackView.spacing = 10
self.addSubview(stackView)
stackView.centerX(inView: self)
stackView.centerY(inView: self)
}
}
The functions which are not being called are handleDriverSortRadioButton and handlePickupTimeSortRadioButton. Here is instantiation:
private lazy var sortView = SortView()
and here is where I use it in my parent UIViewController class:
view.addSubview(sortView)
sortView.anchor(top:tableView.bottomAnchor,
left: view.leftAnchor,
right: view.rightAnchor,
paddingTop: 40,
paddingLeft: 32,
paddingRight: 32)
I'm going to guess that the problem is that a containing view (perhaps one of the stack views) has zero size. The result would be that its subviews are visible but not tappable.
Here is a debugging utility method you can use to track down this sort of thing:
extension UIView {
#objc func reportSuperviews(filtering:Bool = true) {
var currentSuper : UIView? = self.superview
print("reporting on \(self)\n")
while let ancestor = currentSuper {
let ok = ancestor.bounds.contains(ancestor.convert(self.frame, from: self.superview))
let report = "it is \(ok ? "inside" : "OUTSIDE") \(ancestor)\n"
if !filtering || !ok { print(report) }
currentSuper = ancestor.superview
}
}
}
Wait until your interface is all set up and the buttons are untappable, and then call that on one of the untappable buttons to get a report in the console.
Fixed it by adding with and height to the bottom stack view
sortView.anchor(top:tableView.bottomAnchor,
left: view.leftAnchor,
right: view.rightAnchor,
paddingTop: 40,
paddingLeft: 32,
paddingRight: 32,
width: view.frame.width,
height: 100)
I am trying to change adjust the size of the a UIImageView that is the leftView of my UITextField without any success. The image is always huge. I would like it to have the same height as my UITextField. Here is what i have tried:
Result:
let topContainer: UIView = {
let view = UIView()
view.layer.borderWidth = 1.0
view.layer.borderColor = UIColor.appGrayExtraLightGray.cgColor
view.layer.cornerRadius = 5
view.clipsToBounds = true
view.translatesAutoresizingMaskIntoConstraints = false
return view
}()
let emailField: UITextField = {
let view = UITextField()
view.backgroundColor = UIColor.orange
view.text = "myEmailAddress#gmail.com"
view.font = UIFont.systemFont(ofSize: 14)
view.translatesAutoresizingMaskIntoConstraints = false
return view
}()
let s = view.safeAreaLayoutGuide
topContainer.addSubview(emailField)
emailField.topAnchor.constraint(equalTo: topContainer.topAnchor, constant: spacing).isActive = true
emailField.leadingAnchor.constraint(equalTo: topContainer.leadingAnchor, constant: spacing).isActive = true
emailField.trailingAnchor.constraint(equalTo: topContainer.trailingAnchor, constant: -spacing).isActive = true
emailField.bottomAnchor.constraint(equalTo: topContainer.bottomAnchor, constant: -spacing).isActive = true
/**Mail and clear button on eitherisde of textField*/
let mailView = UIImageView.init(frame: CGRect.init(x: 0, y: 0, width: 15, height: 15)) // Chaning the GREct has no effect on the size!!
mailView.image = UIImage.init(named: "mailGrayFilled")
emailField.leftView = mailView
emailField.leftViewMode = .always
emailField.clearButtonMode = .always
view.addSubview(topContainer)
topContainer.topAnchor.constraint(equalTo: s.topAnchor, constant: spacing).isActive = true
topContainer.leadingAnchor.constraint(equalTo: s.leadingAnchor, constant: spacing).isActive = true
topContainer.trailingAnchor.constraint(equalTo: s.trailingAnchor, constant: -spacing).isActive = true
Putting the UIImageView into a Container UIView seems to fix the issue when I test your code. This may also allow you to adjust the padding to suit your needs.
let iconContainer = UIView(frame: CGRect(x: 0, y: 0, width: 25, height: 15))
let mailView = UIImageView(frame: CGRect(x: 0, y: 0, width: 15, height: 15))
mailView.image = UIImage(named: "mailGrayFilled")
mailView.contentMode = .scaleAspectFit
iconContainer.addSubview(mailView)
emailField.leftViewMode = .always
emailField.leftView = iconContainer
emailField.clearButtonMode = .always
I'm trying to lay out a StackView programatically, the effect I would like to achieve is
but instead I am getting
I do not understand why the loadingDotView is stretching to fill up all the space?
let loadingDotView: UIView = {
let ldv = UIView()
ldv.backgroundColor = .white
ldv.alpha = 0
ldv.frame = CGRect(x: 0, y: 0, width: 20, height: 20)
ldv.layer.cornerRadius = 10
ldv.layer.masksToBounds = true
ldv.translatesAutoresizingMaskIntoConstraints = false
return ldv
}()
let dotsStackView: UIStackView = {
let stackView = UIStackView()
stackView.axis = .horizontal
stackView.distribution = .equalSpacing
stackView.translatesAutoresizingMaskIntoConstraints = false
return stackView
}()
Setup code...
view.addSubview(dotsStackView)
NSLayoutConstraint.activate([
dotsStackView.heightAnchor.constraint(equalToConstant: 20),
dotsStackView.widthAnchor.constraint(equalToConstant: 100),
dotsStackView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
dotsStackView.centerYAnchor.constraint(equalTo: view.centerYAnchor)
])
dotsStackView.addArrangedSubview(loadingDotView)
dotsStackView.addArrangedSubview(loadingDotView)
dotsStackView.addArrangedSubview(loadingDotView)
This ( closure )
let loadingDotView: UIView = {
let ldv = UIView()
ldv.backgroundColor = .white
ldv.alpha = 0
ldv.frame = CGRect(x: 0, y: 0, width: 20, height: 20)
ldv.layer.cornerRadius = 10
ldv.layer.masksToBounds = true
ldv.translatesAutoresizingMaskIntoConstraints = false
return ldv
}()
returns same object every access so only one appears , make it ( computed property ) to create a new one every access
var loadingDotView: UIView {
let ldv = UIView()
ldv.backgroundColor = .white
ldv.alpha = 0
ldv.frame = CGRect(x: 0, y: 0, width: 20, height: 20)
ldv.layer.cornerRadius = 10
ldv.layer.masksToBounds = true
ldv.translatesAutoresizingMaskIntoConstraints = false
return ldv
}
And add
stackView.spacing = 20
stackView.distribution = .fillEqually
I have a navigation controller with a navigation bar, I have added a UIView with subview of imageView and UILabel for titleView.
I need to be able to click on that view to do something else with addGestureRecognizer on that view but nothing is printed on the console.
The UIImageView has to be next to the UILabel
Here is the code I tried so far
private func setupNavBarWithUser() {
let titleView = UIView()
let width = titleView.sizeThatFits(CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude)).width
titleView.frame = CGRect(origin:CGPoint.zero, size:CGSize(width: width, height: 500))
let profileImageView = UIImageView()
profileImageView.translatesAutoresizingMaskIntoConstraints = false
profileImageView.contentMode = .scaleAspectFill
profileImageView.layer.cornerRadius = 20
profileImageView.clipsToBounds = true
ImageService.getImage(withURL: NSURL(string: (user?.pictureURL)!)! as URL) { (image) in
profileImageView.image = image
}
titleView.addSubview(profileImageView)
profileImageView.leftAnchor.constraint(equalTo: titleView.leftAnchor).isActive = true
profileImageView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true
profileImageView.widthAnchor.constraint(equalToConstant: 40).isActive = true
profileImageView.heightAnchor.constraint(equalToConstant: 40).isActive = true
let nameLabel = UILabel()
titleView.addSubview(nameLabel)
nameLabel.text = user?.first_name
nameLabel.textColor = .white
nameLabel.translatesAutoresizingMaskIntoConstraints = false
nameLabel.leftAnchor.constraint(equalTo: profileImageView.rightAnchor, constant: 8).isActive = true
nameLabel.centerYAnchor.constraint(equalTo: profileImageView.centerYAnchor).isActive = true
nameLabel.rightAnchor.constraint(equalTo: titleView.rightAnchor).isActive = true
nameLabel.heightAnchor.constraint(equalTo: profileImageView.heightAnchor).isActive = true
titleView.centerXAnchor.constraint(equalTo: titleView.centerXAnchor).isActive = true
titleView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true
self.navigationItem.titleView = titleView
let recognizer = UITapGestureRecognizer(target: self, action: #selector(self.testing))
titleView.isUserInteractionEnabled = true
titleView.addGestureRecognizer(recognizer)
}
#objc func testing() {
print("hello")
}
Hope someone can help me with this problem, much thank you !!
UPDATE this is where I need to add a gesture recognizer
Add this method in viewDidLoad/viewWillAppear
if let navigationBar = self.navigationController?.navigationBar {
// create a button
let button = UIButton(type: .custom)
button.frame = CGRect(x: navigationBar.frame.width/2-20, y: 0, width: 100, height: 40)
button.setTitleColor(.red, for: .normal)
button.setTitle("Button", for: .normal)
button.addTarget(self, action: #selector(self.testing), for: .touchUpInside)
// create a imageview
let profileImageView = UIImageView()
profileImageView.contentMode = .scaleAspectFill
profileImageView.layer.cornerRadius = 20
profileImageView.clipsToBounds = true
profileImageView.frame = CGRect(x: navigationBar.frame.width/2-60, y: 0, width: 40, height: 40)
profileImageView.image = UIImage(named: "heart")
// Add two elements to navigationbar
navigationBar.addSubview(profileImageView)
navigationBar.addSubview(button)
}
I am super new iOS development and StackViews in general and need help calculating dynamic height in instances where a stack view will not be shown. There are cases where certain elements will not be shown depending on what I get back from the server.
However, when I call removeArrangedSubview the element is removed but the height isn't adjusted dynamically. How can I fix this?
I would like to avoid the Interface Builder all together and just do this programmatically. I have been using layout anchors for constraints.
Here's my code. You can put in a playground to see it.
//: Playground - noun: a place where people can play
import UIKit
import Foundation
let view = UIView(frame: CGRect(x: 0, y: 0, width: 800, height: 140))
let firstStackView = UIStackView(frame: CGRectZero)
//firstStackView.heightAnchor.constraintGreaterThanOrEqualToConstant(40).active = true
firstStackView.axis = .Vertical
firstStackView.alignment = .Fill
firstStackView.distribution = .EqualSpacing
let titleStackView = UIStackView(frame: CGRectZero)
titleStackView.axis = .Horizontal
titleStackView.alignment = .Fill
titleStackView.distribution = .Fill
titleStackView.spacing = 3
firstStackView.addArrangedSubview(titleStackView)
let productStackView = UIStackView(frame: .zero)
productStackView.axis = .Horizontal
productStackView.alignment = .Leading
productStackView.distribution = .Fill
productStackView.spacing = 3
firstStackView.addArrangedSubview(productStackView)
//firstStackView.removeArrangedSubview(productStackView)
let secondStackView = UIStackView(frame: CGRectZero)
//secondStackView.heightAnchor.constraintEqualToConstant(30).active = true
secondStackView.axis = .Horizontal
secondStackView.distribution = .EqualSpacing
let title = UILabel(frame: CGRectZero)
title.text = "test1"
title.textColor = .blackColor()
//labelOne.backgroundColor = .blueColor()
let size = title.sizeThatFits(CGSizeZero)
print("\(size)")
title.widthAnchor.constraintEqualToConstant(size.width).active = true
//labelOne.heightAnchor.constraintEqualToConstant(30).active = true
titleStackView.addArrangedSubview(title)
let assigneeLabel = UILabel(frame: CGRectZero)
assigneeLabel.text = "test2"
assigneeLabel.textColor = .blackColor()
//labelTest.backgroundColor = .redColor()
assigneeLabel.textAlignment = .Left
//labelTest.heightAnchor.constraintEqualToConstant(30).active = true
titleStackView.addArrangedSubview(assigneeLabel)
let actions = UIButton(type: .Custom)
//buttonOne.backgroundColor = .redColor()
actions.setTitle("some button", forState: .Normal)
actions.setTitleColor(.blackColor(), forState: .Normal)
titleStackView.addArrangedSubview(actions)
let productOne = UILabel(frame: CGRectZero)
productOne.text = "something1"
productOne.numberOfLines = 0
let productLabelSize = productOne.sizeThatFits(CGSizeZero)
productOne.widthAnchor.constraintEqualToConstant(productLabelSize.width).active = true
productOne.textColor = .blackColor()
//labelTwo.backgroundColor = .blueColor()
productStackView.removeArrangedSubview(productOne)
//productStackView.addArrangedSubview(productOne)
let productTwo = UILabel(frame: CGRectZero)
productTwo.text = "something2"
productTwo.numberOfLines = 0
//productTwo.heightAnchor.constraintEqualToConstant(30).active = true
productTwo.textColor = .blackColor()
//labelTwo.backgroundColor = .blueColor()
productStackView.removeArrangedSubview(productTwo)
//productStackView.addArrangedSubview(productTwo)
let labelThree = UILabel(frame: CGRectZero)
labelThree.text = "sometime"
//labelThree.heightAnchor.constraintEqualToConstant(30).active = true
labelThree.textColor = .blackColor()
//labelThree.backgroundColor = .blueColor()
firstStackView.addArrangedSubview(labelThree)
let descriptionView = UILabel(frame: CGRectZero)
descriptionView.text = "some description about something"
descriptionView.textColor = .blackColor()
//descriptionView.backgroundColor = .redColor()
secondStackView.addArrangedSubview(descriptionView)
let tagsView = UILabel(frame: CGRectZero)
tagsView.text = "some more things"
tagsView.textColor = .blackColor()
secondStackView.addArrangedSubview(tagsView)
secondStackView.trailingAnchor.constraintEqualToAnchor(tagsView.trailingAnchor).active = true
let stackView = UIStackView(arrangedSubviews: [firstStackView, secondStackView])
stackView.layoutMargins = UIEdgeInsets(top: 0, left: 20, bottom: 0, right: 20)
stackView.layoutMarginsRelativeArrangement = true
stackView.axis = .Vertical
stackView.frame = view.bounds
stackView.distribution = .FillProportionally
view.addSubview(stackView)
Before element is removed:
After element is removed:
I would like that gap to be gone and the height adjusted dynamically.
You can add a constraint for the height of the view if you are using auto layout.
So like for initial setup, you could do something like:
class YourClass : UIViewController() {
var heightConstraint = NSLayoutConstraint()
func someMethod () {
// load your View
// get the height of view.
heightConstraint = yourView.heightAnchor.constraintEqualToConstant(height)
self.view.addConstraint(heightConstraint)
}
func deleteMemberStackView() {
/// After deleting the member, get the new height of the view and do this
self.view.removeConstraint(heightConstraint)
heightConstraint = yourView.heightAnchor.constraintEqualToConstant(height)
self.view.addConstraint(heightConstraint)
UIView.animateViewDuration(0.3, completion: {
self.view.layoutIfNeeded()
})
}
}