I have 2 UISwitch and a Button, in viewDidLoad, I set the button to be hidden and disabled, I want only my button to be not hidden if those 2 switch is in ON state, otherwise, I want my button to hide again. is there any method from UI Switch delegate that can be used ? how do I do that in Swift ?
here is the code I use
import UIKit
class AskingAuthorizationVC: UIViewController {
#IBOutlet weak var locationSwitch: DesignableSwitch!
#IBOutlet weak var notificationSwitch: DesignableSwitch!
#IBOutlet weak var nextButton: DesignableButton!
override func viewDidLoad() {
super.viewDidLoad()
// initial state
nextButton.isHidden = true
nextButton.isEnabled = false
notificationSwitch.isOn = false
locationSwitch.isOn = false
}
#IBAction func signUpButtonDidPressed(_ sender: Any) {
performSegue(withIdentifier: "toAuthenticationVC", sender: nil)
}
}
Hook both of the UISwitch-s as IBActions & IBOutlets
#IBAction func oweSwitch(_ sender: UISwitch) {
self.mybutton.isHidden = !(switch1.isOn && switch2.isOn)
}
Related
I'm trying to create small restaurant app for employees. There I have table numbers as a button if the user clicks that button I want that clicked button to be disabled and I want textfield and another ok button to appear. And if I click on disable button I want that to be enabled.
import UIKit
class ViewController: UIViewController {
var total = 0
#IBOutlet weak var okButton: UIButton!
#IBOutlet weak var userInput: UILabel!
#IBOutlet weak var userValue: UITextField!
#IBAction func okButton(_ sender: UIButton) {
if userValue.text != nil{
userInput.text = String(0)
let userValueint: Int? = Int(userValue.text!)
total = total + userValueint!
let convertText = String(total)
userInput.text = convertText
userValue.text = String(0)
userValue.isHidden = true
okButton!.isHidden = true
} else {
print("Please Inter values")
}
}
#IBAction func buttenPressed(_ sender: UIButton) {
userValue.isHidden = false
okButton.isEnabled = true
}
override func viewDidLoad() {
super.viewDidLoad()
userValue.isHidden = true
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
okButton.isHidden = false
}
}
So far I'm able to hide textField at the beginning and able to enabled when table button is clicked, but I can't hide ok button and disable the table button. Any suggestion?
First of all, you can't clicked a disabled button. Second, use viewDidLoad instead of viewWillAppear.
I guess your table button is sender so disable sender and show ok button
#IBAction func buttenPressed(_ sender: UIButton) {
sender.isEnabled = false
userValue.isHidden = false
okButton.isHidden = false
okButton.isEnabled = true
}
#IBOutlet weak var allStocksSelected: UIImageView!
#IBOutlet weak var shortStocksSelected: UIImageView!
#IBOutlet weak var longStocksSelected: UIImageView!
#IBOutlet weak var myStocksTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
myStocksTableView.delegate = self
myStocksTableView.dataSource = self
}
override func viewDidAppear(_ animated: Bool) {
self.shortStocksSelected.isHidden = true
self.longStocksSelected.isHidden = true
self.allStocksSelected.isHidden = true
}
#IBAction func allStocksButtonPressed(_ sender: Any) {
print("ALL!")
self.stockTypeChanged(stockType: allStocksSelected)
}
#IBAction func shortStocksButtonPressed(_ sender: Any) {
print("SHORT!")
self.stockTypeChanged(stockType: shortStocksSelected)
}
#IBAction func longStocksButtonPressed(_ sender: Any) {
print("LONG!")
self.longStocksSelected.isHidden = false
self.shortStocksSelected.isHidden = true
self.allStocksSelected.isHidden = true
//stockTypeChanged(stockType: longStocksSelected)
}
#IBAction func addNewStockButtonPressed(_ sender: Any) {
}
#IBAction func signOutButtonPressed(_ sender: Any) {
}
private func stockTypeChanged(stockType: UIImageView) {
let stockTypes: [UIImageView] = [allStocksSelected, shortStocksSelected, longStocksSelected]
for (stock) in stockTypes {
if (stock == stockType) {
stock.isHidden = false
} else {
stock.isHidden = true
}
}
}
As shown from my code above, I am basically just trying to hide and show certain image views when buttons are pressed.
I am 100% sure that all of the buttons actions and IB outlets are properly connected, yet the image views are still not hiding and showing, and I cannot figure out why.
I was running into this same issue. Placing your isHidden code to execute on the main thread should solve the problem.
DispatchQueue.main.sync {
}
I want to change with two subviews as button been clicked, the subview was created by StoryBoard, each subview has a button, click the button will bring another subview and hidden current one.
But I found when a subview call removeFromSuperview(), it will be release automatically, if I want to use this subview later, I need a var to point it.
Here is my code:
class ViewController: UIViewController {
#IBOutlet weak var secondView: UIView!
#IBOutlet weak var firstView: UIView!
var temp1: UIView?
var temp2: UIView?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
temp1 = firstView
temp2 = secondView
secondView.removeFromSuperview()
}
#IBAction func moveToSecond(_ sender: UIButton) {
firstView.removeFromSuperview()
view.insertSubview(secondView, at: 0)
secondView.isUserInteractionEnabled = true
}
#IBAction func moveToFirst(_ sender: UIButton) {
secondView.removeFromSuperview()
view.insertSubview(firstView, at: 0)
firstView.isUserInteractionEnabled = true
}
}
Without two temp var, subview will release after removeFromSuperview, and cause next insertSubview crash because it is nil.
So, How to prevent subview auto release?
Is there another way to change between two subviews created by StoryBoard graceful?
My mistake, I didn't notice that outlet is weak, everything is reasonable, when removeFromSuperview, no strong point is left to the sub view, than it release automatically.
You can use #IBOutlet var secondView: UIView! to create strong reference of the view.But as per your requirement I suggest not to remove it from the super view. Instead of that you should hide and show the views when needed as below.
class ViewController: UIViewController {
#IBOutlet var secondView: UIView!
#IBOutlet var firstView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
secondView.isHidden = true
}
#IBAction func moveToSecond(_ sender: UIButton) {
firstView.isHidden = true
secondView.isHidden = false
secondView.isUserInteractionEnabled = true
}
#IBAction func moveToFirst(_ sender: UIButton) {
secondView.isHidden = true
firstView.isHidden = false
firstView.isUserInteractionEnabled = true
}
}
Assuming your two views are one upon above , having same width and same height . In viewDidLoad . first set the firstView to front and secondView to back. Once button click i bring secondView to front and firstView to back , like so on.
import UIKit
class ViewController1: UIViewController {
#IBOutlet var secondView: UIView!
#IBOutlet var firstView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
self.view.bringSubview(toFront: firstView)
self.view.sendSubview(toBack: secondView)
}
#IBAction func moveToSecond(_ sender: UIButton) {
self.view.bringSubview(toFront: secondView)
self.view.sendSubview(toBack: firstView)
}
#IBAction func moveToFirst(_ sender: UIButton) {
self.view.bringSubview(toFront: firstView)
self.view.sendSubview(toBack: secondView)
}
}
If your two sub view's are in different position of the view. then you need to hide alternative View in respective button click
class ViewController: UIViewController {
#IBOutlet var secondView: UIView!
#IBOutlet var firstView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
secondView.isHidden = true
firstView.isUserInteractionEnabled = true
}
#IBAction func moveToSecond(_ sender: UIButton) {
firstView.isHidden = true
secondView.isHidden = false
secondView.isUserInteractionEnabled = true
}
#IBAction func moveToFirst(_ sender: UIButton) {
secondView.isHidden = true
firstView.isHidden = false
firstView.isUserInteractionEnabled = true
}
}
Right now i have a purple and red score. I would like to use the 1 and 2 buttons to add the score for the colors. I know how to do this by creating just a sets of buttons to the specific color but doing this again and again will create problems. So what I am trying to do is if purple is selected and if and only if 1 is pressed then the total score of purple will = 1. I guess what I am trying is perform a switch statement for the buttons.
Before purple/red button is pressed.
After purple/red button is pressed.
import UIKit
class ViewController: UIViewController {
var purpleScore = 0
var redScore = 0
#IBOutlet var plus1: UIButton!
#IBOutlet var plus2: UIButton!
#IBOutlet var addRed: UIButton!
#IBOutlet var addPurlple: UIButton!
#IBOutlet var totalScorePurple: UILabel!
#IBOutlet var totalScoreRed: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
plus1.isHidden = true
plus2.isHidden = true
}
#IBAction func enteringRed(_ sender: Any) {
plus1.isHidden = false
plus2.isHidden = false
}
#IBAction func enteringPurple(_ sender: Any) {
plus1.isHidden = false
plus2.isHidden = false
}
#IBAction func plus1(_ sender: Any) {
}
#IBAction func plus2(_ sender: Any) {
}
}
If I understand correctly as the comment above, this should work
Create 2 Bool for red and purple to see weather they are checked or not, this is easiest way, else you can just check the redButton color got changed (if it does) or .selected = true
var redChecked = false
var purpleChecked = false
#IBAction func enteringRed(_ sender: Any) {
redChecked = !redChecked
//change color etc..
}
#IBAction func enteringPurple(_ sender: Any) {
purpleChecked = !purpleChecked
//change color etc..
}
#IBAction func plus1(_ sender: Any) {
if redChecked {
redScore+=1
}
if purpleChecked {
purpleScore+=1
}
}
#IBAction func plus2(_ sender: Any) {
if redChecked {
redScore+=2
}
if purpleChecked {
purpleScore+=2
}
}
So I'm pretty new but I'm trying to reference a button from another. I disable the first button when I press it, but I want to enable it when I press the other button. Check this out. It doesn't like my second sender reference.
#IBAction func IBbtnUpdateTap(sender: UIButton){
sender.enabled = false
}
#IBAction func addSpinsButton() {
sender.enabled = true
}
Any ideas from you coding wizards?
The problem is that the context of your function addSpinsButton as no sender variable. You must add a reference to your button in the class.
You can do this with something like:
#IBOutlet weak var myButton: UIButton!
Link the button in interface builder (same way you have done with your function, but for the outlet)
Then your addSpinsButton will become:
#IBAction func addSpinsButton() {
myButton.enabled = true
}
what you need is something like this:
class ViewController: UIViewController {
#IBOutlet weak var button1: UIButton!
#IBOutlet weak var button2: UIButton!
#IBAction func button1Tapped(sender: UIButton) {
sender.enabled = false
}
#IBAction func button2Tapped(sender: UIButton) {
button1.enabled = true
}
}