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.
Related
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 am running into a basic problem with views on iPad. I have a viewController. The view is using a UIImageView with a full screen image as a background image. I am trying to overlay labels on the top. If I set labels individually, both views show up. If I call a function with the same information only one view shows up. I need to extend it many labels. Here is the code:
class ViewController: UIViewController {
#IBOutlet weak var backGroundImageView: UIImageView!
var cFrame:[CGRect?] = [CGRect?](repeating: nil, count: 13)
var offsets:[CGRect?] = [CGRect?](repeating: nil, count: 13)
var labels: [UILabel?] = [UILabel?](repeating:UILabel(), count:13)
override func viewDidLoad() {
super.viewDidLoad()
cFrame[0] = CGRect(x:450,y:530,width:251,height:68)
cFrame[1] = CGRect(x:147,y:676,width:222,height:24)
loadFrameValues()
var frame = CGRect(x: 450, y: 520, width: 251, height: 68)
let label0 = UILabel(frame: frame)
label0.backgroundColor = .white
label0.numberOfLines = 0
label0.lineBreakMode = .byWordWrapping
label0.textAlignment = .center
label0.text = "Text 1"
frame = CGRect(x: 152, y: 686, width: 210, height: 16)
let label1 = UILabel(frame: frame)
label1.backgroundColor = .cyan
label1.lineBreakMode = .byWordWrapping
label1.textAlignment = .left
label1.text = "Text 2"
label1.font = label1.font.withSize(12)
backGroundImageView.addSubview(label0)
backGroundImageView.addSubview(label1)
// showView(label: labels[0]!, frame: cFrame[0]!)
// showView(label: labels[1]!, frame: cFrame[1]!)
// }
}
func showView(label: UILabel, frame:CGRect) {
label.frame = frame
label.backgroundColor = .white
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.textAlignment = .center
label.text = "Syed Tariq"
backGroundImageView.addSubview(label)
}
You can't add subview (label in your case) to UIImageView. So add label as subview to the superview of your image view.
override func viewDidLoad() {
cFrame[0] = CGRect(x:50,y:130,width:151,height:68)
cFrame[1] = CGRect(x:114,y:276,width:122,height:24)
showView(frame: cFrame[0]!)
showView(frame: cFrame[1]!)
}
func showView(frame:CGRect) {
let label = UILabel(frame: frame)
label.backgroundColor = .green
label.numberOfLines = 0
label.lineBreakMode = .byWordWrapping
label.textAlignment = .center
label.text = "Syed Tariq"
self.view.addSubview(label)
}
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)
I have a UIStackView which needs a background color in one of the stacks, so I placed a UIView inside, but the UIView is never displayed. The UIView currently has one subview, a UILabel, but should eventually have another UIStackView instead. If I display the UILabel as a direct child of the UIStackView, rather than the UIView, then the UILabel displays properly. So, what constraints are missing or wrong on my UIView?
let stack = UIStackView()
stack.axis = .Vertical
stack.alignment = .Leading
stack.distribution = .EqualCentering
stack.spacing = 0
let width = UIScreen.mainScreen().bounds.size.width
let frame = CGRect(x: 0, y: 0, width: width, height: 50)
let viewHolder = UIView(frame: frame)
viewHolder.backgroundColor = blueColor
//Needs a blue background
let name = UILabel()
name.text = nameText
name.textColor = yellowColor
name.backgroundColor = blueColor
name.font = UIFont.boldSystemFontOfSize(32.0)
let address = UILabel()
address.text = addressText
let dateTime = UILabel()
dateTime.text = calString
viewHolder.addSubview(name)
stack.addArrangedSubview(viewHolder)
stack.addArrangedSubview(address)
stack.addArrangedSubview(dateTime)
self.stackView.addArrangedSubview(stack)
And when run it produces this:
If I remove the UIView from the equation, ie:
let stack = UIStackView()
stack.axis = .Vertical
stack.alignment = .Leading
stack.distribution = .EqualCentering
stack.spacing = 0
let width = UIScreen.mainScreen().bounds.size.width
let frame = CGRect(x: 0, y: 0, width: width, height: 50)
let viewHolder = UIView(frame: frame)
viewHolder.backgroundColor = blueColor
//Needs a blue background
let name = UILabel()
name.text = nameText
name.textColor = yellowColor
name.backgroundColor = blueColor
name.font = UIFont.boldSystemFontOfSize(32.0)
let address = UILabel()
address.text = addressText
let dateTime = UILabel()
dateTime.text = calString
//viewHolder.addSubview(name)
stack.addArrangedSubview(name) //Add the label directly to the UIStackView
stack.addArrangedSubview(address)
stack.addArrangedSubview(dateTime)
self.stackView.addArrangedSubview(stack)
I get:
I just need the blue part to stretch across the screen
So, answer is, don't use UIStackView. Use the built in UITableView for this kind of layout.
navigationItem.hidesBackButton = true
navigationItem.leftBarButtonItem = nil
head = UIView()
head.frame = CGRectMake(0, 0, 200, 44)
head.frame.origin.x = CGFloat(0)
navigationItem.titleView = head
I attempt to align the titleView to the left, but it still remains in the middle.
Try this:
let title = UILabel()
title.text = "TITLE"
let spacer = UIView()
let constraint = spacer.widthAnchor.constraint(greaterThanOrEqualToConstant: CGFloat.greatestFiniteMagnitude)
constraint.isActive = true
constraint.priority = .defaultLow
let stack = UIStackView(arrangedSubviews: [title, spacer])
stack.axis = .horizontal
navigationItem.titleView = stack
The idea is that main view (in this case title) will take all the space it needs and spacer view will take all the free space left.
I figured it out.
I just need to set my custom UIView as the leftBarButtonItem.
I had a similar requirement of adding the Title along with the subtitle to the left of the navbar. I couldn't achieve it with a TitleView since it cannot be aligned left.
So I took #TIMEZ and #Wain's answers, along with responses from the thread here and added a complete answer, in case it helps anyone :
let titleLabel = UILabel()
titleLabel.text = "Pillars"
titleLabel.textAlignment = .center
titleLabel.font = .preferredFont(forTextStyle: UIFont.TextStyle.headline)
let subtitleLabel = UILabel()
subtitleLabel.text = "How did you do today?"
subtitleLabel.textAlignment = .center
subtitleLabel.font = .preferredFont(forTextStyle: UIFont.TextStyle.subheadline)
let stackView = UIStackView(arrangedSubviews: [titleLabel, subtitleLabel])
stackView.distribution = .equalSpacing
stackView.alignment = .leading
stackView.axis = .vertical
let customTitles = UIBarButtonItem.init(customView: stackView)
self.navigationItem.leftBarButtonItems = [customTitles]
You can't align a title view to the left. You can create a title view and add a subview positioned to its left. If you're looking to display in place of the back button then you should be using a bar button item instead of title view.
I don't think Apple wants you to do that. Navigation bars have a pretty specific purpose that often involves having something else in the top left corner like a Back button. You might be better off making a custom UIView or UIToolbar that looks like the navigation bar.
If it's a custom UIView, override intrinsicContentSize and return
CGSize(width: .greatestFiniteMagnitude, height: UIView.noIntrinsicMetric)
This will stretch the view to the entire width between left and right bar button items.
You can constraint the titleView to the navigationBars leftAnchor.
private func setupNavigationBarTitleView() {
let titleView = YourCustomTitleView()
navigationBarTitleView = titleView
navigationBarTitleView?.translatesAutoresizingMaskIntoConstraints = false
navigationItem.titleView = navigationBarTitleView
if let navigationBar = navigationController?.navigationBar {
NSLayoutConstraint.activate([
titleView.leadingAnchor.constraint(equalTo: navigationBar.leadingAnchor, constant: 16),
titleView.heightAnchor.constraint(equalToConstant: 36)
])
}
}
The simplest solution is to add low priority constraint for title width.
let titleLabel = UILabel()
titleLabel.textAlignment = .left
...
let c = titleLabe.widthAnchor.constraint(equalToConstant: 10000)
c.priority = .required - 1
c.isActive = true
navigationItem.titleView = titleLabel
Hey guys after trying most of the solutions above. I found that most of em still did not meet my prod requirements. Here is a solution I came up with after trying out different solutions.
func setLeftAlignTitleView(font: UIFont, text: String, textColor: UIColor) {
guard let navFrame = navigationController?.navigationBar.frame else{
return
}
let parentView = UIView(frame: CGRect(x: 0, y: 0, width: navFrame.width*3, height: navFrame.height))
self.navigationItem.titleView = parentView
let label = UILabel(frame: .init(x: parentView.frame.minX, y: parentView.frame.minY, width: parentView.frame.width, height: parentView.frame.height))
label.backgroundColor = .clear
label.numberOfLines = 2
label.font = font
label.textAlignment = .left
label.textColor = textColor
label.text = text
parentView.addSubview(label)
}
let navLabel = UILabel(frame: CGRect(x: 0, y: 0, width: view.frame.width - 32, height: view.frame.height))
navLabel.text = "Hi, \(CurrentUser.firstName)"
navLabel.textColor = UIColor.white
navLabel.font = UIFont.systemFont(ofSize: 20)
navigationItem.titleView = navLabel