Programmatically moving UILabel not working - ios

Question

I am having trouble changing the position of my UILabel. I can change font color and background etc but its position doesn't seem to move no matter what I try. Any help would be appreciated. Im also not using storyboard at all.
I'm fairly new to this so I'm probably missing something very obvious. I have googled and tried anything I thought applied but haven't had any luck.
View Builder:
import UIKit
class StandMapView: UIView {
var titleLabel: UILabel = UILabel()
var standMapImage: UIImageView = UIImageView()
var hotspotImage: UIImageView = UIImageView()
var hotspotTitleLabelArray: [UILabel] = []
var hotspotTextArray: [UITextView] = []
override init(frame: CGRect) {
super.init(frame: frame)
setupView()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func bind(standMap: StandMap, hotspots: [Hotspot]) {
titleLabel.text = standMap.title
standMapImage.image = UIImage(named: standMap.mapImage)
hotspotImage.image = UIImage(named:standMap.hotspotImage)
for hotspot in hotspots {
let hotspotTitle = UILabel()
let hotspotText = UITextView()
hotspotTitle.text = hotspot.title
hotspotText.text = hotspot.text
hotspotTitleLabelArray.append(hotspotTitle)
hotspotTextArray.append(hotspotText)
}
}
private func setupView() {
let screenWidth = UIScreen.mainScreen().bounds.width
let screenHeight = UIScreen.mainScreen().bounds.height
self.frame = CGRect(x: 0, y: 0, width: screenWidth, height: screenHeight)
titleLabel.translatesAutoresizingMaskIntoConstraints = false
standMapImage.translatesAutoresizingMaskIntoConstraints = false
hotspotImage.translatesAutoresizingMaskIntoConstraints = false
self.backgroundColor = UIColor.blackColor()
titleLabel.sizeToFit()
titleLabel.frame = CGRect(x: screenWidth/2, y: 30, width: 0, height: 0)
titleLabel.textAlignment = .Center
titleLabel.numberOfLines = 0
titleLabel.adjustsFontSizeToFitWidth = true
titleLabel.textColor = UIColor.whiteColor()
addSubview(titleLabel)
}
}
View Controller:
import UIKit
class StandMapViewController: UIViewController {
var standMap: StandMap!
var hotspots: [Hotspot] = []
override func viewDidLoad() {
super.viewDidLoad()
Hotspot.all { hotspot in
hotspot.forEach(self.assignHotspotVariable)
}
StandMap.build {standMap in
standMap.forEach(self.assignStandMapVariable)
}
viewForStandMap(standMap, hotspots: hotspots)
}
private func assignStandMapVariable(standMap: StandMap) {
self.standMap = standMap
}
private func assignHotspotVariable(hotspot: Hotspot) {
hotspots.append(hotspot)
}
private func viewForStandMap(standMap: StandMap, hotspots: [Hotspot]) {
let standMapView = StandMapView(frame: CGRectZero)
standMapView.bind(standMap, hotspots: hotspots)
view.addSubview(standMapView)
}
}

Answer 1

If you want to change the position of the label, you need to change the origin x and y
titleLabel.frame.origin.x = 0.0 // put your value
titleLabel.frame.origin.y = 0.0 // put your value
self.view.layoutIfNeeded()

Answer 2

I managed to solve this using snapkit cocoa pod to make the constraints and then adding the subview before declaring these constraints.
Thanks for everyones help.
Heres the changes i made to the setupView function:
private func setupView() {
titleLabel.translatesAutoresizingMaskIntoConstraints = false
standMapImage.translatesAutoresizingMaskIntoConstraints = false
hotspotImage.translatesAutoresizingMaskIntoConstraints = false
self.backgroundColor = UIColor.blackColor()
titleLabel.textColor = UIColor.whiteColor()
titleLabel.textAlignment = .Center
titleLabel.numberOfLines = 0
titleLabel.adjustsFontSizeToFitWidth = true
addSubview(titleLabel)
titleLabel.snp_makeConstraints { make in
make.topMargin.equalTo(snp_topMargin).multipliedBy(60)
make.centerX.equalTo(snp_centerX)
}
}

Answer 3

If your label has constraints with Autolayout in storyboard, you must disable constraints to move the frame. Try using
titleLabel.translatesAutoresizingMaskIntoConstraints = YES;
Hope this may solve your issue.

Answer 4

If you are using AutoLayout, do following:
set outlet for constraint of UILable that you want to change.
Then change constant of that constraint as per your need.
e.g: xPosOfLable.constant = x