i am trying to add a label at the bottom of imageView as a subview but when image changes its height or width the label is not responsive.
So i want to make a dynamic label.
add like
var lbl1 = UILabel(frame: CGRect(x: yourimageview.frame.origin.x, y: yourimageview.frame.origin.y + yourimageview.frame.size.height + 5, width: yourimageview.frame.size.width, height: asyourWish))
lbl1.textColor = UIColor.black
lbl1.frame = position
lbl1.backgroundColor = UIColor.clear
lbl1.textColor = UIColor.white
lbl1.text = "TEST"
self.view.addSubview(lbl1)
Here example of adding label to image
let picImage:UIImageView = {
let imageView = UIImageView()
let image = UIImage(named: "test")
imageView.image = image
imageView.contentMode = .scaleAspectFill
imageView.translatesAutoresizingMaskIntoConstraints = false
return imageView
}()
let durationLabel: UILabel = {
let label = UILabel()
label.text = "1:20:12"
label.font = UIFont(name:"HelveticaNeue-Bold", size: 15.0)
label.textAlignment = NSTextAlignment.right
label.numberOfLines = 1
label.textColor = UIColor.white
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
func setupView(){
// I will skip part of image setup
self.picImage.addSubview(durationLabel)
durationLabel.bottomAnchor.constraint(equalTo: picImage.bottomAnchor).isActive = true
durationLabel.leftAnchor.constraint(equalTo: picImage.leftAnchor, constant: 5).isActive = true
durationLabel.rightAnchor.constraint(equalTo: picImage.rightAnchor, constant: -5).isActive = true
}
this code will add label to image that set constraint to bottom and left and right
Try this!
var label = UILabel()
label.frame = CGRect(x: imageView.bounds.origin.x, y: imageView.bounds.origin.y, width: 300, height: 45)
label.backgroundColor = UIColor.orange
label.textAlignment = .left
label.text = "This is a test label"
self.imageView.addSubview(label)
Related
This is my code:
class UINavigationControllerCustom : UINavigationController {
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews();
navigationBar.frame = CGRect(x: 0, y: 0, width: view.frame.width, height: 120);
}
}
class PreferenceInput: UIViewController {
override func viewDidLoad() {
let l1 = UILabel()
l1.backgroundColor = .clear
l1.numberOfLines = 1
l1.font = UIFont.boldSystemFont(ofSize: 30.0)
l1.textAlignment = .left
l1.textColor = .black
l1.text = "Bold title"
l1.sizeToFit();
let l2 = UILabel()
l2.backgroundColor = .clear
l2.numberOfLines = 2
l2.font = UIFont.boldSystemFont(ofSize: 16.0)
l2.textAlignment = .left
l2.textColor = .darkGray;
l2.text = "This is a\nmultiline string for the navBar"
l2.sizeToFit();
let tView = UIStackView(arrangedSubviews: [l1,l2]);
tView.axis = .vertical;
let spacer = UIView()
let constraint = spacer.widthAnchor.constraint(greaterThanOrEqualToConstant: CGFloat.greatestFiniteMagnitude)
constraint.isActive = true
constraint.priority = .defaultLow
let stack = UIStackView(arrangedSubviews: [tView, spacer])
stack.axis = .horizontal
navigationItem.titleView = stack
navigationItem.titleView.sizeToFit();
}
}
And this is what I get:
I can set the height of the navigation bar but how and where should I set the constraint to stretch the height in respect of the given 120px of the custom navigation controller?
I want to provide an individual height of the navigation bar.
My wish is to make centered image(left) and next to it(right) the label.
Without setting an image, there was a perfectly centered titleLabel:
btnWhatsapp.titleLabel?.adjustsFontSizeToFitWidth = true
btnWhatsapp.setTitle("WhatsApp", for: .normal)
Then I added this code to add an image:
btnWhatsapp.setImage(UIImage(named: "phoneIcon"), for: .normal)
btnWhatsapp.imageView?.layer.transform = CATransform3DMakeScale(0.5, 0.6, 0.5)
btnWhatsapp.imageView?.contentMode = .scaleAspectFit
, and this iswhat I got then:
, so the title disappeared.
Maybe the problem is that image uses more space than its actual size(the size shouldnt take more widht and height than the icon size). I saw this when changed images background(should be this much grey color):
btnWhatsapp.imageView?.backgroundColor = .gray
I tried to use the imageEdgeInsets but it is very hard to calculate it to fit perfectly on every iPhone.
This is the Attributes inspector of the button:
You can't set title and image at once by default, nor position them as you describe.
If you need to have a UIButton, I'd recommend to make a UIView (or possibly horizontal UIStackView) with UIImage and UILabel inside, position them with autolayout, then you can add this view to the UIButton as a subview.
let button = UIButton(type: .custom)
button.frame = viewFrame // This is the desired frame of your custom UIView or UIStackView
button.addSubview(customView)
You will be able to position the views easily for all sizes with this approach, but you will probably want to use autolayout in real word app, instead of hardcoded frames.
Example:
override func viewDidLoad() {
super.viewDidLoad()
let image = UIImageView(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
label.text = "text"
let stack = UIStackView(arrangedSubviews: [image, label])
stack.frame = CGRect(x: 0, y: 0, width: 100, height: 50)
stack.distribution = .fillEqually
let button = UIButton()
button.frame = CGRect(x: 0, y: 0, width: 100, height: 50)
button.addSubview(stack)
view.addSubview(button)
self.view.addSubview(button)
}
Set your button under your controller class like this:
let imageButton: UIButton = {
let b = UIButton(type: .custom)
b.backgroundColor = #colorLiteral(red: 0.3411764801, green: 0.6235294342, blue: 0.1686274558, alpha: 1)
b.layer.cornerRadius = 12
b.clipsToBounds = true
b.translatesAutoresizingMaskIntoConstraints = false
let imageV = UIImageView()
imageV.image = UIImage(named: "yourImage")?.withRenderingMode(.alwaysTemplate)
imageV.tintColor = .white
imageV.contentMode = .scaleAspectFill
imageV.translatesAutoresizingMaskIntoConstraints = false
imageV.widthAnchor.constraint(equalToConstant: 30).isActive = true
let label = UILabel()
label.text = "WhatsApp"
label.textColor = .white
label.font = .systemFont(ofSize: 16, weight: .regular)
let stack = UIStackView(arrangedSubviews: [imageV, label])
stack.distribution = .fill
stack.spacing = 4
stack.axis = .horizontal
stack.translatesAutoresizingMaskIntoConstraints = false
b.addSubview(stack)
stack.heightAnchor.constraint(equalToConstant: 30).isActive = true
stack.widthAnchor.constraint(equalToConstant: 120).isActive = true
stack.centerXAnchor.constraint(equalTo: b.centerXAnchor).isActive = true
stack.centerYAnchor.constraint(equalTo: b.centerYAnchor).isActive = true
return b
}()
Now in viewDidLoad add button and set constraints in your view (in my case on top)
view.addSubview(imageButton)
imageButton.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 20).isActive = true
imageButton.heightAnchor.constraint(equalToConstant: 50).isActive = true
imageButton.widthAnchor.constraint(equalToConstant: 200).isActive = true
imageButton.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
This is the result:
I am creating a UIView programtically that is scaled and translated to the center of my view. I am then adding subviews (UILabel's) to that view programatically and the issue I have encountered is that the text for the UILabel's is stretched and difficult to read. I have tried to set autoresizeSubviews = false however this did not have any effect. I have also tried setting the number of lines but this did not have any affect either. I wanted to know if there was a possible solution to this problem that perhaps I am overlooking. Below is my code...
Here i instantiate each UI object to be used on view including view itself
//create lazy vars for UIView that is instantiated until it is initialized
lazy var enlargedView: UIView = {
let view = UIView()
view.backgroundColor = UIColor.white
view.layer.cornerRadius = 12.0
view.clipsToBounds = true
return view
}()
lazy var profileImageView: UIImageView = {
let imageView = UIImageView()
imageView.frame = CGRect(x: self.enlargedView.center.x, y: self.enlargedView.bounds.origin.y + 20.0, width: self.enlargedView.bounds.width * 0.4, height: self.enlargedView.bounds.width * 0.4)
imageView.layer.cornerRadius = imageView.frame.width / 2
imageView.clipsToBounds = true
imageView.layer.borderColor = UIColor.black.cgColor
imageView.layer.borderWidth = 1.0
imageView.contentMode = .scaleAspectFit
imageView.translatesAutoresizingMaskIntoConstraints = false
return imageView
}()
lazy var usernameLabel: UILabel = {
let label = UILabel()
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.textColor = UIColor.black
let font = UIFont(name: Constants.Fonts.GILL_SANS_SEMIBOLD, size: 8.0)
let fontMetrics = UIFontMetrics(forTextStyle: .body)
label.font = fontMetrics.scaledFont(for: font!)
label.textAlignment = .center
//label.sizeToFit()
label.translatesAutoresizingMaskIntoConstraints = false
return label
} ()
lazy var userDataLabel: UILabel = {
let label = UILabel()
//creates implicit height for label
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.textColor = UIColor.black
let font = UIFont(name: Constants.Fonts.GILL_SANS, size: 10.0)
let fontMetrics = UIFontMetrics(forTextStyle: .body)
label.font = fontMetrics.scaledFont(for: font!)
label.textAlignment = .center
label.sizeToFit()
label.translatesAutoresizingMaskIntoConstraints = false
return label
} ()
Next I create animation for view to scale and translate once a collectionView cell is tapped
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "SearchCell", for: indexPath) as! SearchCell
let currentFrame = cell.frame
let selectedUser = userNameArr[indexPath.row]
enlargedView.frame = currentFrame
let backgroundView = UIView(frame: self.view.bounds)
backgroundView.backgroundColor = UIColor.black.withAlphaComponent(0.5)
UIView.animate(withDuration: 0.3, delay: 0.0, options: .curveEaseOut, animations: {
self.view.addSubview(self.enlargedView)
//translate view to center of screen
self.enlargedView.center = CGPoint(x: self.view.bounds.midX, y: self.view.bounds.midY)
//while view is being translated background subview should be inserted
self.view.insertSubview(backgroundView, belowSubview: self.enlargedView)
self.enlargedView.transform = CGAffineTransform(scaleX: 2.5, y: 2.5)
}) { (viewWasEnlarged) in
if viewWasEnlarged {
if let profile = selectedUser.user_photo_url {
self.profileImageView.kf.setImage(with: URL(string:Constants.Server.MEDIA_URL + profile))
} else {
self.profileImageView.image = UIImage(named: "user_icon")
}
self.enlargedView.addSubview(self.profileImageView)
self.profileImageView.snp.makeConstraints { (make) in
make.centerX.equalToSuperview()
make.top.equalTo(self.enlargedView.snp.top).offset(20.0)
make.width.equalTo(self.enlargedView.snp.width).multipliedBy(0.4)
make.height.equalTo(self.enlargedView.snp.width).multipliedBy(0.4)
}
//USERNAME label
self.usernameLabel.text = selectedUser.user_name!
self.enlargedView.addSubview(self.usernameLabel)
self.usernameLabel.snp.makeConstraints { (make) in
make.centerX.equalToSuperview()
make.width.equalTo(self.enlargedView.snp.width).multipliedBy(0.9)
make.top.equalTo(self.profileImageView.snp.bottom).offset(5.0)
}
//reset enlarged view back to original value
self.usernameLabel.transform = CGAffineTransform.identity
//USER DATA label
var userAge = ""
var userRelationshipStatus = ""
if let userYear = selectedUser.user_birthday {
let yr = self.calendar.dateComponents([.year], from: userYear).year
userAge = "\(yr!)"
}
if let status = selectedUser.user_stats {
userRelationshipStatus = status
}
self.userDataLabel.text = userAge + " | " + userRelationshipStatus
self.enlargedView.addSubview(self.userDataLabel)
self.userDataLabel.snp.makeConstraints { (make) in
make.centerX.equalToSuperview()
make.width.equalTo(self.enlargedView.snp.width).multipliedBy(0.2)
make.top.equalTo(self.usernameLabel.snp.bottom).offset(3.0)
}
//create label to show HUB as well
//create bio
//show Path??
}
}
The imageView is unaffected however the text itself is not reflected correctly
I added a blur effect behind a label. The blur refuses to go behind the label. I tried all 3 of these separately:
label.insertSubview(backgroundBlur, at: 0)
label.addSubview(backgroundBlur)
label.sendSubview(toBack: backgroundBlur)
The thing is I need the width and height of the UIVisualEffectView blur to be based on the the size of the label's text. The text is dynamic. Both labels need to have their own individual backgroundBlur.
How can I get the UIVisualEffectView blur to go behind each indivdual label when it's also based on the label's text's width and height? There should be two labels with 2 backgroundBlurs behind them.
let backgroundBlur: UIVisualEffectView = {
let blur = UIVisualEffectView(effect: UIBlurEffect(style: UIBlurEffectStyle.dark))
blur.layer.cornerRadius = 6
blur.layer.masksToBounds = true
return blur
}()
let labelOne: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.boldSystemFont(ofSize: 17)
label.textColor = UIColor.white
label.textAlignment = .center
label.sizeToFit()
label.numberOfLines = 0
return label
}()
let labelTwo: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.boldSystemFont(ofSize: 17)
label.textColor = UIColor.white
label.textAlignment = .center
label.sizeToFit()
label.numberOfLines = 0
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(labelOne)
view.addSubview(labelTwo)
labelOne.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
labelOne.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
labelTwo.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
labelTwo.topAnchor.constraint(equalTo: labelOne.bottomAnchor, constant: 16).isActive = true
putBlurEffectBehindLabel(backgroundBlur, labelOne)
putBlurEffectBehindLabel(backgroundBlur, labelTwo)
}
func putBlurEffectBehindLabel(_ blur: UIVisualEffectView, _ label: UILabel){
blur.frame = label.bounds
// tried these individually but nada
label.insertSubview(backgroundBlur, at: 0)
label.addSubview(backgroundBlur)
label.sendSubview(toBack: backgroundBlur)
blur.center = CGPoint(x: label.bounds.midX, y: label.bounds.midY)
}
you have to add UILabel to UIVisualEffectView
backgroundBlur.addSubview(labelOne)
backgroundBlur.addSubview(labelTwo)
add backgroundBlur and set constraint
then add labelOne,labelTwo to backgroundBlur with there constraint
Or Add all to UIView and connect them with constraint
don't forget translatesAutoresizingMaskIntoConstraints = false
Declaration:
let backgroundBlur: UIVisualEffectView = {
let blur = UIVisualEffectView(effect: UIBlurEffect(style:
UIBlurEffectStyle.dark))
blur.layer.cornerRadius = 6
blur.layer.masksToBounds = true
blur.translatesAutoresizingMaskIntoConstraints = false
return blur
}()
let labelOne: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
let labelTwo: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
ViewDidLoad
self.view.addSubview(backgroundBlur)
self.view.addSubview(labelOne)
self.view.addSubview(labelTwo)
labelOne.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
labelOne.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
labelTwo.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
labelTwo.topAnchor.constraint(equalTo: labelOne.bottomAnchor, constant: 16).isActive = true
labelOne.text = "asdhaskdas saldhlsahdsa laskdhsakhd asdlhkhsad"
labelTwo.text = "asdhaskdas saldhlsahdsa laskdhsakhd asdlhkhsad"
labelOne.numberOfLines = 0
labelTwo.numberOfLines = 0
backgroundBlur.topAnchor.constraint(equalTo: labelOne.topAnchor, constant: -8).isActive = true
backgroundBlur.bottomAnchor.constraint(equalTo: labelTwo.bottomAnchor, constant: 8).isActive = true
backgroundBlur.trailingAnchor.constraint(equalTo: labelOne.trailingAnchor, constant: 8).isActive = true
backgroundBlur.leadingAnchor.constraint(equalTo: labelOne.leadingAnchor, constant: -8).isActive = true
I had to add two UIVisualEffectView named:
backgroundBlurOne
backgroundBlurTwo
Based on #AbdelahadDarwish suggestion of adding the label to the blur instead of adding the blur to the label I was able to get the blur behind the label:
// this is added inside the putBlurEffectBehindLabel function
blur.contentView.addSubview(label)
Also inside the putBlurEffectBehindLabel function I got the size of the label's text using (text! as NSString).size(withAttributes: [NSAttributedStringKey.font: UIFont])
and then based the width and height of the UIVisualEffectView (the blur) off of that.
I then added the text I wanted for labelOne and backgroundBlurOne in viewDidLoad.
Then I added the text I wanted for labelTwo and the backgroundBlurTwo for it in viewDidAppear. I had to do that so I can use the height from backgroundBlurOne + a 16 point distance so labelTwo could be where I needed it to be from labelOne.
let backgroundBlurOne: UIVisualEffectView = {
let blur = UIVisualEffectView(effect: UIBlurEffect(style: UIBlurEffectStyle.dark))
blur.translatesAutoresizingMaskIntoConstraints = false
blur.layer.cornerRadius = 6
blur.layer.masksToBounds = true
blur.isUserInteractionEnabled = false
blur.backgroundColor = UIColor.black.withAlphaComponent(10)
return blur
}()
let backgroundBlurTwo: UIVisualEffectView = {
let blur = UIVisualEffectView(effect: UIBlurEffect(style: UIBlurEffectStyle.dark))
blur.translatesAutoresizingMaskIntoConstraints = false
blur.layer.cornerRadius = 6
blur.layer.masksToBounds = true
blur.isUserInteractionEnabled = false
blur.backgroundColor = UIColor.black.withAlphaComponent(10)
return blur
}()
let labelOne: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.systemFont(ofSize: 17)
label.textColor = UIColor.white
label.textAlignment = .center
label.sizeToFit()
label.numberOfLines = 0
return label
}()
let labelTwo: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont.systemFont(ofSize: 17)
label.textColor = UIColor.white
label.textAlignment = .center
label.sizeToFit()
label.numberOfLines = 0
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
labelOne.text = "Hello"
putBlurEffectBehindLabel(backgroundBlurOne, labelOne, yDistance: 0)
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
labelTwo.text = "Heloooooooooooooooooooooooo"
putBlurEffectBehindLabel(backgroundBlurTwo, labelTwo, yDistance: backgroundBlurOne.frame.height + 16)
}
func putBlurEffectBehindLabel(_ blur: UIVisualEffectView, _ label: UILabel, yDistance: CGFloat){
view.addSubview(blur)
blur.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
blur.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: yDistance).isActive = true
blur.contentView.addSubview(label)
label.centerXAnchor.constraint(equalTo: blur.centerXAnchor).isActive = true
label.centerYAnchor.constraint(equalTo: blur.centerYAnchor).isActive = true
let text = label.text
let textSize = (text! as NSString).size(withAttributes: [NSAttributedStringKey.font: UIFont.systemFont(ofSize: 17)])
blur.widthAnchor.constraint(equalToConstant: textSize.width + 15).isActive = true
blur.heightAnchor.constraint(equalToConstant: textSize.height + 10).isActive = true
}
I am trying to set the accessory view of a UITableView to a UILabel. I have tried looking around the Internet for an answer but could not find anything. Here is what I do:
let listCountLabel: UILabel = {
let label = UILabel(frame: CGRect(x: 0, y: 0, width: 25, height: 25))
label.text = "1"
label.layer.borderWidth = 2
label.layer.borderColor = UIColor.lightGray.cgColor
label.textColor = .lightGray
label.layer.cornerRadius = label.frame.height / 2
label.translatesAutoresizingMaskIntoConstraints = false
label.font = UIFont(name: "HelveticaNeue", size: 14)
label.textAlignment = .center
return label
}()
//Add to Subview
view.addSubview(listCountLabel)
cell.accessoryView = listCountLabel
There is no need to call view.addSubView(). Just call listCountLabel.sizeToFit() before inserting it into cell.accessoryView.
listCountLabel.sizeToFit()
cell.accessoryView = listCountLabel