I have changed the alpha of the button successfully so I know I can modify it. But when I use setTitle, the button just disappears.
I have a tableview with collection views in each cell. I have a custom header cell that when tapped, presents options including the button that disappears when tapping on it.
Here is the function in the main view controller that is called properly and works (I know because I can change the alpha of the button and even make it hidden).
func deleteScenes(){
if let header = whichHeaderTapped {
header.deleteScenesOutlet.setTitle("fuckssake", for: .normal)
header.deleteActOutlet.alpha = 0.0
header.editButtonOutlet.alpha = 0.0
}
}
Here is the class for the header cell.
class HeaderCell: UITableViewCell {
static var shared = HeaderCell()
#IBOutlet var headerName: UILabel!
#IBOutlet var newOptions: UIStackView!
#IBOutlet var deleteScenesOutlet: UIButton!
#IBOutlet var deleteActOutlet: UIButton!
#IBOutlet var editButtonOutlet: UIButton!
override func awakeFromNib() {
super.awakeFromNib()
self.newOptions.frame.origin = CGPoint(x: 285, y: 0)
}
override func layoutSubviews() {
super.layoutSubviews()
}
#IBAction func deleteScenesButton(_ sender: UIButton) {
if deleteScenesOutlet.titleLabel?.text == "Delete Scenes" {
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "deleteScenesButtonEnabled"), object: nil)
}
else {
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "deleteScenesButtonDisabled"), object: nil)
}
}
}
Your code seems to be fine. Can you check what is the color of your button title. If it is white and your background view color is also white then there is a chance you were not able to see the button.
Related
I am entirely new at Swift, and am building a referral form. Some pages of the form have tickboxes where the user can select what type of support they need. I've created these tickboxes as cells for a UITableView. They have their own view and nib, and are made up of a button and an image for feedback. Here's the code:
class TickboxCell: UITableViewCell {
#IBOutlet weak var supportBox: UIView!
#IBOutlet weak var supportBtn: UIButton!
#IBOutlet weak var checkmark: UIImageView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
#IBAction func buttonPressed(_ sender: UIButton) {
if supportBtn.isSelected == false {
supportBtn.isSelected = true
checkmark.image = UIImage(named: K.Images.checked)
} else {
supportBtn.isSelected = false
checkmark.image = UIImage(named: K.Images.notChecked)
}
}
}
In the ViewController for the page, I'm trying to create a function whereby, when the user presses the Next button to go to the next page of the form, all the labels of the buttons that have been selected are stored and then passed onto the final page of the referral form, ready to be emailed.
This is where I'm at with the function:
func getTicks() {
var ticks: [String:String?] = [:]
for cell in self.tableView.visibleCells {
if cell.supportBtn.isSelected == true {
if let title = cell.supportBtn.titleLabel?.text {
ticks.updateValue("Yes", forKey: title)
}
}
}
}
Of course, this doesn't work because the visible cells don't have what I'm looking for. They only have properties like baseClass and frame.
In my function for the tableView, there's the line
let cell = tableView.dequeueReusableCell(withIdentifier: K.cellIdentifier, for: indexPath) as! TickboxCell
I know that's where it makes the tableView cells into the Tickbox cells - I set the titleLabels for the cell buttons after that. So can I work this into the above function somehow? Or is there another way to tap into the selected status and titles of my buttons?
This is my first ever question on here, apologies if there's anything wrong with it!
I have created one popView with textfield and button in ViewController. if i click button then popView is appearing, and i am able to enter text in textfield and submit is working, and if i tap anywhere in view also i am able to remove popView, but here i want if i tap on anywhere in popView i don't want to dismiss popView, Please help me in the code.
here is my code:
import UIKit
class PopUPViewController: UIViewController {
#IBOutlet weak var popView: UIView!
#IBOutlet weak var inputField: UITextField!
#IBOutlet weak var textLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
popView.isHidden = true
// Do any additional setup after loading the view.
}
#IBAction func butnAct(_ sender: Any) {
view?.backgroundColor = UIColor(white: 1, alpha: 0.9)
popView.isHidden = false
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(PopUPViewController.dismissView))
view.addGestureRecognizer(tap)
}
#objc func dismissView() {
self.popView.isHidden = true
view?.backgroundColor = .white
}
#IBAction func sendButton(_ sender: Any) {
self.textLabel.text = inputField.text
}
}
In my code if i tap anywhere in the view popView is removing even if i tap on popView also its removing, i don't need that, if i tap on popView then popView need not to be remove.
Please help me in the code
You can override the touchesBegan method which is triggered when a new touch is detected in a view or window. By using this method you can check a specific view is touched or not.
Try like this
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
if touch?.view != self.popView {
dismissView()
}
}
func dismissView() {
self.popView.isHidden = true
view?.backgroundColor = .white
}
It's not the way I would have architected this, but to get around the problem you face you need to adapt your dismissView method so that it only dismisses the view if the tap is outside the popView.
To do this modify your selector to include the sender (the UITapGestureRecogniser )as a parameter:
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(PopUPViewController.dismissView(_:)))
and then in your function accept that parameter and test whether the tap is inside your view, and if so don't dismiss the view:
#objc func dismissView(_ sender: UITapGestureRegognizer) {
let tapPoint = sender.location(in: self.popView)
if self.popView.point(inside: tapPoint, with: nil)) == false {
self.popView.isHidden = true
view?.backgroundColor = .white
}
}
Your Popup view is inside the parent view of viewcontroller that's why on tap of popview also your popview is getting hidden.
So to avoid just add a view in background and name it bgView or anything what you want and replace it with view. And it will work fine .
Code:
#IBOutlet weak var bgView: UIView!//Add this new outlet
#IBOutlet weak var popView: UIView!
#IBOutlet weak var inputField: UITextField!
#IBOutlet weak var textLabel: UILabel!
#IBOutlet weak var submitButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
popView.isHidden = true
}
#IBAction func butnAct(_ sender: Any) {
bgView.backgroundColor = UIColor(white: 1, alpha: 0.9)//change view to bgView[![enter image description here][1]][1]
popView.isHidden = false
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(ViewController.dismissView))
bgView.addGestureRecognizer(tap)//change view to bgView
}
#objc func dismissView() {
self.popView.isHidden = true
bgView.backgroundColor = .white//change view to bgView
}
#IBAction func sendButton(_ sender: Any) {
self.textLabel.text = inputField.text
}
I need help to accomplish this:
Its a group of 3 photos. The first photo is the button screen before the click, the second photo is the screen after the click and the third photo is the way i've designed in the IB using stackview
I've being trying to create this and this is the result i've got so far. I still haven't created anything as the After button click image shows because of this:
My Result now
As you can see in the gif when i press the button, the UIView height constraint.constant is set to a higher value and the UIView get higher. All i want is the stripped background to get higher as well.
This is the way the view is disposed in IB.
And finally, this is the way i've coded
class LetterScreenViewController: UIViewController, ResizeWordViewDelegate {
#IBOutlet weak var youTubeView: YouTubeView!
#IBOutlet weak var phonemeView: PhonemeView!
#IBOutlet weak var wordView: WordView!
var letterPresenter: LetterPresenter?
#IBOutlet weak var heightWordViewConstraint: NSLayoutConstraint!
override func viewDidLoad() {
super.viewDidLoad()
delegateWordObj()
if let presenter = letterPresenter {
presenter.setupView()
}
}
#IBAction func dismissLetter(_ sender: Any) {
dismiss(animated: true, completion: nil)
}
func delegateWordObj() {
wordView.resizeWordViewDelegate = self
}
func didPressButton() {
if heightWordViewConstraint.constant <= 0 {
heightWordViewConstraint.constant = 30
}else{
heightWordViewConstraint.constant = 0
}
}
}
import UIKit
protocol ResizeWordViewDelegate {
func didPressButton()
}
class WordView: UIView {
#IBOutlet weak var backgroundListras: UIImageView!
#IBOutlet var WordView: UIView!
#IBOutlet weak var showWordButton: UIButton!
var resizeWordViewDelegate: ResizeWordViewDelegate!
override init(frame: CGRect) {
super.init(frame: frame)
xibInit()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
xibInit()
}
func xibInit() {
Bundle.main.loadNibNamed("WordView", owner: self, options: nil)
addSubview(WordView)
WordView.frame = self.bounds
WordView.round(corners: [.topLeft,.topRight], radius: 120)
WordView.autoresizingMask = [.flexibleHeight, .flexibleWidth]
}
#IBAction func showWordButtonAction(_ sender: Any) {
resizeWordViewDelegate.didPressButton()
self.frame.size = CGSize(width: 375, height: 200)
self.backgroundListras.frame.size = CGSize(width: 375, height: 200)
}
}
I want to know a way to resize this UIView with all the content in it. After finding a solution to increase the height i'll be able to put all the others components shown when i press the button.
I believe that your goal is to create something like this:
All I had to do was change the height of the constraint programmatically
Check the solution in the project below:
https://gitlab.com/DanielLimaDF/ResizeTest.git
Important: Beware of addSubview, it can remove constraints from a View if the constraints were created before calling addSubview
So I have a custom UIView with a button in it, called the home button. In other view controllers, this home button within this particular UIView works just fine. In one particular view controller, however, the home button is non responsive to touches- the app acts as though the button is not even there.
class TemplateChooserViewController: UIViewController, HeaderViewDelegate {
...
#IBOutlet weak var myHeader: HeaderView!
override func viewDidLoad() {
super.viewDidLoad()
myHeader.delegate = self
myHeader.Title.text = "Template Chooser"
... //All the rest of this function has been commented out and the home button still didn't work
}
func homeButtonTapped()
{
let home = self.navigationController?.viewControllers.first //code never reaches here
self.navigationController?.popToViewController(home!, animated: false)
}
And the HeaderView file looks like:
protocol HeaderViewDelegate: class {
func homeButtonTapped()
func informationButtonTapped()
}
class HeaderView: UIView {
weak var delegate: HeaderViewDelegate?
#IBOutlet var view: UIView!
#IBOutlet weak var Title: UILabel!
#IBOutlet weak var flameDecal: UIImageView!
#IBOutlet weak var homeButton: UIButton!
required init(coder aDecoder: NSCoder)
{
super.init(coder: aDecoder)!
Bundle.main.loadNibNamed("HeaderView", owner: self, options: nil)
self.addSubview(self.view)
}
#IBAction func homeButtonTouched(_ sender: UIButton)
{
delegate?.homeButtonTapped() //Code also doesn't reach here
}
#IBAction func infoButtonTouched(_ sender: UIButton) {
delegate?.informationButtonTapped()
}
}
Keep in mind the code compiles fine, so I did have the infoButtonTouched function implemented, I just didn't see the point in showing it. I have no idea why the button is unresponsive. Any ideas on how to get the button to respond would be most helpful. Thanks for your consideration of this matter.
Sincerely,
Sean
I have this toolbar in my navigation controller. Now what I am trying to do is when the user selects an item (UIBarButtonItem) in my toolbar, have that item highlighted with a background colour until either the user deselects the item or selects another item. How would I do this?
Here are my selector methods for each item of the toolbar, I connected them via storyboard:
#IBAction func addText(sender: AnyObject) {
annotationSelected = 3
}
#IBAction func drawCircle(sender: AnyObject) {
annotationSelected = 1
}
#IBAction func drawRectangle(sender: AnyObject) {
annotationSelected = 2
}
#IBAction func drawStamp(sender: AnyObject) {
annotationSelected = 4
}
This is all I have done. Here is a screenshot of my toolbar:
Here is what I got:
#IBOutlet var textToolButton: UIBarButtonItem!
#IBOutlet var circleToolButton: UIBarButtonItem!
#IBOutlet var rectangleToolButton: UIBarButtonItem!
#IBOutlet var stampToolButton: UIBarButtonItem!
then
textToolButton.target = self
textToolButton.style = .Done
textToolButton.action = #selector(ViewController.barButtonPressed)
let selectedBackgroundColor = UIImage(color: .redColor())
textToolButton.setBackgroundImage(selectedBackgroundColor, forState: UIControlState.Highlighted, style: .Done, barMetrics: UIBarMetrics.Default)
and then the method
func barButtonPressed(sender: UIBarButtonItem) {
print(sender)
annotationSelected = sender.tag
}
background is still not changing color
I find a same question. May be can help you.
custom-pressed-uibarbuttonitem-backgrounds
I find a easy method to do. You can dray a button to the toolBar,and you will see like this.
And you should change the button's type and Image.
storyboard screenshot
then you should link the button to your viewController.
#IBOutlet weak var textToolButton: UIButton!
and you can do.
let selectedBackgroundColor = UIImage(color: .redColor())
textToolButton.setBackgroundImage(selectedBackgroundColor, forState: .Highlighted)
May be I can help you.
The cleanest way you could do it, is create an overall function where you pass in the button that's been selected. Something like this:
var allButtons = [button1, button2, button3, button4]
func resetTabBar (buttonSelected:UIButton) {
for button in allButtons {
if button == buttonSelected {
button.backgroundColor = "Black"
}
else {
button.backgroundColor = "Blue"
}
}
}
And then in your functions you've created, just pass in the sender like so:
#IBAction func addText(sender: AnyObject) {
resetTabBar(sender)
}
Note: This is assuming you have outlets for all of your buttons. If you don't, add them.