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Hey what's up everybody. A long time without connecting here. I'm pretty sure my trouble is not a new topic but I still having this trouble each time I want to sign my email.
Do someone know how to solucionaste the problem of the image that disappears from the signature mail. I still using the apple mail platform...
Thx
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Hello everyoneI have tried some things, but still blocked with my project.In one view, I have 3 different pickerviews, and I need them connected but with different dataset. I explain with an example.On the first pickerview the user selects the trademark of a car (example: Ferrari, Porsche...), and then depending on the trade selected, I need to display on the second pickerview, the models of the kind of car (example if Porsche selected: 911, Carrera, Cayman...), continuing on this way, I need the third pickerview to display the years of fabrication of this model of car selected.How can I do this selection of different datas depending on the data selected on the previous pickerview?
Hi everyone,today I have another question. When I select the decimal pad to enter only numbers onto a text field, if I press twice or more the comma, the textfield doesn't limitate to one comma. And my code doesn't work because it doesn't recognize the number. How can I do to limitate to one comma entry in the textfield?
Hi everyoneI'm trying to make two conditions on a textfield that I have put on an alarm message.First condition is that the OK button is disabled till a value is entered on the textfield. (this is fixed, I do like a counter of characters in the textfield)Second condition es that the OK button still disabled if the user enter the value 0.I don't know how to make this. The button must enable when the value entered on textfield is > 0.Here is the code for first condition:ok.isEnabled = false
alertMessage.addAction(ok)
alertMessage.addTextField { (textField) -> Void in
amountTextField = textField
amountTextField?.placeholder = "Introduzca un valor"
amountTextField?.keyboardType = UIKeyboardType.numberPad
let toolBar = UIToolbar()
toolBar.sizeToFit()
let doneButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.done, target: self, action: #selector(self.doneClicked))
toolBar.setItems([doneButton], animated: false)
amountTextField?.inputAccessoryView = toolBar
NotificationCenter.default.addObserver(forName: .UITextFieldTextDidChange, object: textField, queue: OperationQueue.main, using: {_ in
let textCount = textField.text?.trimmingCharacters(in: .whitespacesAndNewlines).characters.count ?? 0
let textIsNotEmpty = textCount > 0
ok.isEnabled = textIsNotEmpty
})
}
self.present(alertMessage, animated: true, completion: nil)Thanks for any help.
Hi everybodyI have a code that works properly (see below) but I want to add a thing.Now to change the value on TextField2 I need to enter every time a value on TextField1. What I'm looking for is to keep value on TextField1 and obtain different values on TextField2 by changing values on PickerViews 1 and/or 2.import UIKit
class ConversorDistanciaSubViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate, UITextFieldDelegate {
@IBOutlet weak var textField1: UITextField!
@IBOutlet weak var textField2: UITextField!
@IBOutlet weak var labelField1: UILabel!
@IBOutlet weak var labelField2: UILabel!
@IBOutlet weak var pickerView1: UIPickerView!
@IBOutlet weak var pickerView2: UIPickerView!
let udd1 = 0
let udd2 = 0
let distances = ["Milímetro", "Centímetro", "Metro", "Kilómetro", "Yardas", "Pulgada", "Pie", "Milla", "Milla Náutica"]
let abreviaturas = ["mm", "cm", "m", "km", "yd", "in", "ft", "mi", "nmi"]
@IBAction func textField1EntryValue(_ sender: UITextField) {
var udd1 = Double(textField1.text!)
var udd2 = Double(textField2.text!)
if (udd1 != nil)
{
// Primera medida Milímetros
if (labelField1.text == labelField2.text) {
textField2.text = textField1.text
}
if (labelField1.text == "mm") {
if (labelField2.text == "cm") {
let udd2 = udd1!*0.1
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*0.001
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.000001
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*0.00109361
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*0.0393701
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*0.00328084
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.00000062137
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.00000053996
textField2.text = String(udd2)
}
}
// Segunda medida Centímetros
if (labelField1.text == "cm") {
if (labelField2.text == "mm") {
let udd2 = udd1!*10
textField2.text = String(udd2)
}
if (labelField1.text == "m") {
let udd2 = udd1!*1
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.00001
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*0.0109361
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*0.393701
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*0.0328084
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.0000062137
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.0000053996
textField2.text = String(udd2)
}
}
// Tercera medida Metros
if (labelField1.text == "m") {
if (labelField2.text == "mm") {
let udd2 = udd1!*1000
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*100
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.001
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*1.09361
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*39.3701
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*3.28084
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.00062137
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.00053996
textField2.text = String(udd2)
}
}
// Cuarta medida Kilómetro
if (labelField1.text == "km") {
if (labelField2.text == "mm") {
let udd2 = udd1!*1000000
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*100000
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*1000
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*1093.61
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*39370.1
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*3280.84
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.62137
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.53996
textField2.text = String(udd2)
}
}
// Quinta medida Yarda
if (labelField1.text == "yd") {
if (labelField2.text == "mm") {
let udd2 = udd1!*914.4
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*91.44
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*0.9144
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.0009144
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*36
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*3
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.000568182
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.000493737
textField2.text = String(udd2)
}
}
// Sexta medida Pulgada
if (labelField1.text == "in") {
if (labelField2.text == "mm") {
let udd2 = udd1!*25.4
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*2.54
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*0.0254
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.0000254
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*0.0277778
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*0.0833333
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.000015783
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.000013715
textField2.text = String(udd2)
}
}
// Séptima medida Pie
if (labelField1.text == "ft") {
if (labelField2.text == "mm") {
let udd2 = udd1!*304.8
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*30.48
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*0.3048
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*0.0003048
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*0.333333
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*12
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*0.000189394
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.000164579
textField2.text = String(udd2)
}
}
// Octava medida Milla
if (labelField1.text == "mi") {
if (labelField2.text == "mm") {
let udd2 = udd1!*1609340
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*160934
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*1609.34
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*1.60934
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*1760
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*63360
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*5280
textField2.text = String(udd2)
}
if (labelField2.text == "nmi") {
let udd2 = udd1!*0.868976
textField2.text = String(udd2)
}
}
// Novena medida Milla Náutica
if (labelField1.text == "nmi") {
if (labelField2.text == "mm") {
let udd2 = udd1!*1852000
textField2.text = String(udd2)
}
if (labelField2.text == "cm") {
let udd2 = udd1!*185200
textField2.text = String(udd2)
}
if (labelField2.text == "m") {
let udd2 = udd1!*1852
textField2.text = String(udd2)
}
if (labelField2.text == "km") {
let udd2 = udd1!*1.852
textField2.text = String(udd2)
}
if (labelField2.text == "yd") {
let udd2 = udd1!*2025.37
textField2.text = String(udd2)
}
if (labelField2.text == "in") {
let udd2 = udd1!*72913.4
textField2.text = String(udd2)
}
if (labelField2.text == "ft") {
let udd2 = udd1!*6076.12
textField2.text = String(udd2)
}
if (labelField2.text == "mi") {
let udd2 = udd1!*1.15078
textField2.text = String(udd2)
}
}
else if (udd1 == nil) {
textField2.text = "0"
}
}
}
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
let invalidCharacters = CharacterSet(charactersIn: ".0123456789").inverted
return string.rangeOfCharacter(from: invalidCharacters, options: [], range: string.startIndex ..< string.endIndex) == nil
}
override func viewDidLoad() {
super.viewDidLoad()
pickerView1.delegate = self
pickerView1.dataSource = self
pickerView2.delegate = self
pickerView2.dataSource = self
textField1.delegate = self
textField2.delegate = self
textField1.keyboardType = .numberPad
textField2.keyboardType = .numberPad
//********* IMPLEMENTAMOS UNA BARRA CON EL BOTON Done EN EL TECLADO DEL IPHONE ************
let toolBar = UIToolbar()
toolBar.sizeToFit()
let doneButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.done, target: self, action: #selector(self.doneClicked))
toolBar.setItems([doneButton], animated: false)
textField1.inputAccessoryView = toolBar
textField2.inputAccessoryView = toolBar
}
@objc func doneClicked() {
view.endEditing(true)
}
//*********************************************************************
//********** FUNCIONES QUE DEFINEN A LOS PICKERVIEW **********
func numberOfComponents(in pickerView: UIPickerView) -> Int
{
return 1
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
{
return distances[row]
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
{
return distances.count
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int)
{
if pickerView == pickerView1
{
labelField1.text = abreviaturas[row]
}
else if pickerView == pickerView2
{
labelField2.text = abreviaturas[row]
}
}
//****************************************************
}I know my code is long, but don't know yet how to manage Arrays.Thanks for your help guys.
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Good afternoonI want to make a drop down menu animated. I succeed in unhiding the buttons, but can't succeed in make the drop down animation. I'm missing something. Some help please?When I press botonDropDown, I want all the buttons to drop down.Here is the code:import UIKit
extension UIView {
func addBottomBorderWithColor(color: UIColor, width: CGFloat) {
let border = CALayer()
border.backgroundColor = color.cgColor
border.frame = CGRect(x: 0, y: self.frame.size.height - width, width: frame.size.width, height: width)
self.layer.addSublayer(border)
}
func addLeftBorderWithColor(color: UIColor, width: CGFloat) {
let border = CALayer()
border.backgroundColor = color.cgColor
border.frame = CGRect(x: 0, y: 0, width: width, height: self.frame.size.height)
self.layer.addSublayer(border)
}
func addRightBorderWithColor(color: UIColor, width: CGFloat) {
let border = CALayer()
border.backgroundColor = color.cgColor
border.frame = CGRect(x: frame.size.width - width, y: 0, width: width, height: self.frame.size.height)
self.layer.addSublayer(border)
}
func addTopBorderWithColor(color: UIColor, width: CGFloat) {
let border = CALayer()
border.backgroundColor = color.cgColor
border.frame = CGRect(x: 0, y: 0, width: frame.size.width, height: width)
self.layer.addSublayer(border)
}
}
class ViewController: UIViewController {
@IBOutlet weak var botonLong: UIButton!
@IBOutlet weak var botonVolum: UIButton!
@IBOutlet weak var botonMasa: UIButton!
@IBOutlet weak var botonTemp: UIButton!
@IBOutlet weak var botonVeloc: UIButton!
@IBOutlet weak var botonCaudal: UIButton!
@IBOutlet weak var botonPoten: UIButton!
@IBOutlet weak var botonPresion: UIButton!
@IBOutlet weak var botonPropDown: UIButton!
@IBOutlet var measureSelected: [UIButton]! // in this UICollectionView, I have dragg all the buttons from the Main.storyboard
override func viewDidLoad() {
super.viewDidLoad()
botonPropDown.addBottomBorderWithColor(color: UIColor.white, width: 3)
botonLong.addBottomBorderWithColor(color: UIColor.white, width: 1)
botonLong.addRightBorderWithColor(color: UIColor.white, width: 1)
botonVolum.addBottomBorderWithColor(color: UIColor.white, width: 1)
botonVolum.addLeftBorderWithColor(color: UIColor.white, width: 1)
botonVolum.addRightBorderWithColor(color: UIColor.white, width: 1)
botonMasa.addBottomBorderWithColor(color: UIColor.white, width: 1)
botonMasa.addLeftBorderWithColor(color: UIColor.white, width: 1)
botonMasa.addRightBorderWithColor(color: UIColor.white, width: 1)
botonTemp.addBottomBorderWithColor(color: UIColor.white, width: 1)
botonTemp.addLeftBorderWithColor(color: UIColor.white, width: 1)
botonVeloc.addTopBorderWithColor(color: UIColor.white, width: 1)
botonVeloc.addRightBorderWithColor(color: UIColor.white, width: 1)
botonCaudal.addTopBorderWithColor(color: UIColor.white, width: 1)
botonCaudal.addRightBorderWithColor(color: UIColor.white, width: 1)
botonCaudal.addLeftBorderWithColor(color: UIColor.white, width: 1)
botonPoten.addTopBorderWithColor(color: UIColor.white, width: 1)
botonPoten.addLeftBorderWithColor(color: UIColor.white, width: 1)
botonPoten.addRightBorderWithColor(color: UIColor.white, width: 1)
botonPresion.addTopBorderWithColor(color: UIColor.white, width: 1)
botonPresion.addLeftBorderWithColor(color: UIColor.white, width: 1)
}
// in this IBAction I have dragged all buttons from Main.storyboard
@IBAction func propDownPressed(_ sender: UIButton) {
measureSelected.forEach { (button) in UIView.animate(withDuration: 0.3, animations: {
button.isHidden = !button.isHidden
self.view.layoutIfNeeded()
})
}
}
Thanks for the help.
Hellohere I am again.I need help again.I'm changing a value into the textfield1 using the slider1.And I have another textfield2 with slider2.In textfield1 I introduce radius value of a circle. And in textfield2 I obtain the diameter of the circle.But if I change value in textfield2, automatically the value in textfield1 changes.Now I want the thumb of each slider to move alone if I change the values of each textfield and also if I move manually the thumb of one slider.How can I do it?I don't succeed in doing that.Thanks
Hi everyone,I'm programming my first App with XCode. And I have now a little problem.My App start with a view controller where I have put some buttons.And I have after a tab bar controller already done.But when I link one button of the View Controller to the Tab Bar Controller, I don't succeed in selecting a specific view of the Tab Bar Controller.My idea is to select button1 and the App will display the View1 of the Tab Bar, and if Button2 is selected, display view2 of tabbar.I didn't found any tutotrial clearly explain about how to manage this.Can someone explain me step by step how to fix this issue?Many thanks.Regards
Hi everybody.I'm fascinating with app world. I'm not programmer and want to start initiating to this world with XCode.The first app I want to build for myself is the following:A front image fixed (that won't move) with some transparent cases to see datas printed on a rear image. And the idea is to scroll the rear image to show on the front transparent cases, different datas (printed on the rear image).Can you give me some help with my simple idea.I tried to look at some tutorials on youtube, but don't finish to fix this.Thank you so much.
jeanmif_bcn.