How hide a button (from a for loop)? - ios

Question

I've created multiple buttons (12!) in a for loop.
And now I would hide one of these Buttons.
But I dont know how ;)
I used also button.tag, to get the label from every button I touch to fill the text in another label.
BTW: I used this for a PinCode Check and I want to hide the OK_Button until the PinCode is right.
var pinCode = [Int]()
var pinCodeCounter = 0
func pinCodeLabel() {
pinCodeCounter += 1
if pinCodeCounter == 1 {
pinLabel.text = "*"
}
if pinCodeCounter == 2 {
pinLabel.text = "**"
}
if pinCodeCounter == 3 {
pinLabel.text = "***"
}
if pinCodeCounter == 4 {
pinLabel.text = "****"
}
if pinCodeCounter == 0 {
pinLabel.text = ""
}
}
#IBOutlet weak var pinLabel: UILabel!
#IBOutlet weak var pinCodeCheck: UILabel!
#IBOutlet weak var continueToTimeControlView: UIButton!
#IBAction func pinCodeCorrect() {
if pinCode == [8, 1, 1, 8] {
pinCodeCheck.text = "PIN-Code Richtig"
pinCodeCheck.textColor = UIColor.black
continueToTimeControlView.isHidden = false
} else {
pinCodeCheck.text = "PIN-Code Falsch"
pinCodeCheck.textColor = UIColor.red
}
}
let btn_create = UIButton(type: .system)
#IBOutlet weak var attendanceView: UIView!
func btnAction(sender: UIButton!) {
switch (sender.tag) {
case 0:
pinCode.append(1)
print("1")
case 1:
pinCode.append(2)
print("2")
case 2:
pinCode.append(3)
print("3")
case 3:
pinCode.append(4)
print("4")
case 4:
pinCode.append(5)
print("5")
case 5:
pinCode.append(6)
print("6")
case 6:
pinCode.append(7)
print("7")
case 7:
pinCode.append(8)
print("8")
case 8:
pinCode.append(9)
print("9")
case 9:
pinCode.removeAll()
print("<-")
case 10:
pinCode.append(0)
print("0")
case 11:
pinCodeCorrect()
print(pinCode)
print("OK")
default:
print("")
}
pinCodeCorrect()
}
override func viewDidLoad() {
super.viewDidLoad()
continueToTimeControlView.isHidden = true
var x_axis = 37
var y_axis = 225
var z = 0
var rangeNumbers = ["1","2","3","4","5","6","7","8","9","<- ","0","OK"]
var btn_create = UIButton();
for _ in 1...4 {
for _ in 1...3 {
btn_create = UIButton(frame: CGRect(x: x_axis, y: y_axis, width: 90, height: 90))
btn_create.setTitle(rangeNumbers[z], for: .normal)
//btn_create?.backgroundColor = UIColor.lightGray
btn_create.setTitleColor(UIColor.black, for: .normal)
btn_create.layer.borderColor = UIColor.lightGray.cgColor
btn_create.layer.borderWidth = 1
btn_create.layer.cornerRadius = 45
btn_create.tag = z
btn_create.addTarget(attendanceView, action: #selector(btnAction), for: .touchUpInside)
self.view.addSubview(btn_create)
x_axis += 105
z += 1
}
x_axis = 37
y_axis += 100
}
}

Answer 1

var pinCode = [Int]()
var pinCodeCounter = 0
func pinCodeLabel() {
pinCodeCounter += 1
if pinCodeCounter == 1 {
pinLabel.text = "*"
}
if pinCodeCounter == 2 {
pinLabel.text = "**"
}
if pinCodeCounter == 3 {
pinLabel.text = "***"
}
if pinCodeCounter == 4 {
pinLabel.text = "****"
}
if pinCodeCounter == 0 {
pinLabel.text = ""
}
}
#IBOutlet weak var pinLabel: UILabel!
#IBOutlet weak var pinCodeCheck: UILabel!
#IBOutlet weak var continueToTimeControlView: UIButton!
#IBAction func pinCodeCorrect() {
if pinCode == [8, 1, 1, 8] {
pinCodeCheck.text = "PIN-Code Richtig"
pinCodeCheck.textColor = UIColor.black
continueToTimeControlView.isHidden = false
} else {
pinCodeCheck.text = "PIN-Code Falsch"
pinCodeCheck.textColor = UIColor.red
}
}
let btn_create = UIButton(type: .system)
#IBOutlet weak var attendanceView: UIView!
func btnAction(sender: UIButton!) {
switch (sender.tag) {
case 0:
pinCode.append(1)
print("1")
case 1:
pinCode.append(2)
print("2")
case 2:
pinCode.append(3)
print("3")
case 3:
pinCode.append(4)
print("4")
case 4:
pinCode.append(5)
print("5")
case 5:
pinCode.append(6)
print("6")
case 6:
pinCode.append(7)
print("7")
case 7:
pinCode.append(8)
print("8")
case 8:
pinCode.append(9)
print("9")
case 9:
pinCode.removeAll()
print("<-")
case 10:
pinCode.append(0)
print("0")
case 11:
pinCodeCorrect()
print(pinCode)
print("OK")
default:
print("")
}
pinCodeCorrect()
}
override func viewDidLoad() {
super.viewDidLoad()
continueToTimeControlView.isHidden = true
var x_axis = 37
var y_axis = 225
var z = 0
var rangeNumbers = ["1","2","3","4","5","6","7","8","9","<-","0","OK"]
var btn_create = UIButton();
for _ in 1...4 {
for _ in 1...3 {
btn_create = UIButton(frame: CGRect(x: x_axis, y: y_axis, width: 90, height: 90))
btn_create.setTitle(rangeNumbers[z], for: .normal)
//btn_create?.backgroundColor = UIColor.lightGray
btn_create.setTitleColor(UIColor.black, for: .normal)
btn_create.layer.borderColor = UIColor.lightGray.cgColor
btn_create.layer.borderWidth = 1
btn_create.layer.cornerRadius = 45
btn_create.tag = z
btn_create.addTarget(attendanceView, action: #selector(btnAction), for: .touchUpInside)
self.view.addSubview(btn_create)
x_axis += 105
z += 1
}
x_axis = 37
y_axis += 100
}
}
}