ios - puedo - control por boton iphone

¿Cómo crear un botón programáticamente?

Question

¿Cómo puedo crear mediante programación elementos gráficos (como un UIButton ) en Swift? Intenté crear y agregar un botón en una vista, pero no pude.

Answer 1

Esto me funciona muy bien, #DynamicButtonEvent #IOS #Swift #Xcode

func setupButtonMap(){
let mapButton = UIButton(type: .system)
mapButton.setImage(#imageLiteral(resourceName: "CreateTrip").withRenderingMode(.alwaysOriginal), for: .normal)
mapButton.frame = CGRect(x: 0, y: 0, width: 34, height: 34)
mapButton.contentMode = .scaleAspectFit
mapButton.backgroundColor = UIColor.clear
mapButton.addTarget(self, action: #selector(ViewController.btnOpenMap(_:)), for: .touchUpInside)
navigationItem.leftBarButtonItem = UIBarButtonItem(customView: mapButton)
}
@IBAction func btnOpenMap(_ sender: Any?) {
print("Successful")
}

Answer 2

Agregue este código en viewDidLoad
// agregar botón

 var button=UIButton(frame: CGRectMake(150, 240, 75, 30))
button.setTitle("Next", forState: UIControlState.Normal)
button.addTarget(self, action: "buttonTapAction:", forControlEvents: UIControlEvents.TouchUpInside)
button.backgroundColor = UIColor.greenColor()
self.view.addSubview(button)

Escriba esta función fuera de ella, esto llamará cuando toque el botón

func buttonTapAction(sender:UIButton!)
{
println("Button is working")
}

Answer 3

Aquí hay una solución completa para agregar un UIButton programáticamente con targetAction .
Swift 2.2

override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
button.backgroundColor = .greenColor()
button.setTitle("Test Button", forState: .Normal)
button.addTarget(self, action: #selector(buttonAction), forControlEvents: .TouchUpInside)
self.view.addSubview(button)
}
func buttonAction(sender: UIButton!) {
print("Button tapped")
}

Probablemente sea mejor usar NSLayoutConstraint lugar de frame para colocar correctamente el botón para cada pantalla de iPhone.

Código actualizado a Swift 3.1 :

override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
button.backgroundColor = .green
button.setTitle("Test Button", for: .normal)
button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
self.view.addSubview(button)
}
func buttonAction(sender: UIButton!) {
print("Button tapped")
}

Código actualizado a Swift 4.2 :

override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton(frame: CGRect(x: 100, y: 100, width: 100, height: 50))
button.backgroundColor = .green
button.setTitle("Test Button", for: .normal)
button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
self.view.addSubview(button)
}
@objc func buttonAction(sender: UIButton!) {
print("Button tapped")
}

Lo anterior aún funciona si func buttonAction se declara private o internal .

Answer 4

Cómo hacer esto usando Swift 3.0 .

func createButton() {
let button = UIButton(type: .system)
button.frame = CGRect(x: 100.0, y: 100.0, width: 100.0, height: 100.0)
button.setTitle(NSLocalizedString("Button", comment: "Button"), for: .normal)
button.backgroundColor = .green
button.addTarget(self, action: #selector(buttonAction(sender:)), for: .touchUpInside)
view.addSubview(button)
}
@objc func buttonAction(sender: UIButton) {
print("Button pushed")
}

Answer 5

Es posible. Haces todo de la misma manera, excepto con la sintaxis Swift. Por ejemplo, podría hacer un UIButton en código como este:

 var button: UIButton = UIButton(frame: CGRectMake(0, 0, 100, 100))

Answer 6

La API no ha cambiado, solo la sintaxis sí. Puedes hacer un UIButton y agregarlo así:

var button = UIButton(frame: CGRectMake(0, 0, 50, 50))
self.view.addSubview(button) // assuming you''re in a view controller

Answer 7

Para crear UIButton desde el guión gráfico: 1 - Arrastre el objeto UIButton de la Biblioteca de objetos a ViewController en el archivo del guión gráfico 2 - Mostrar el editor Asistente 3 - Arrastre con el botón derecho del ratón desde UIButton create arriba en su clase. El resultado es el siguiente:

@IBAction func buttonActionFromStoryboard(sender: UIButton)
{
println("Button Action From Storyboard")
}

Para crear UIButton mediante programación: 1- Escriba en "override func viewDidLoad ()":

 let uiButton = UIButton.buttonWithType(UIButtonType.System) as UIButton
uiButton.frame = CGRectMake(16, 116, 288, 30)
uiButton.setTitle("Second", forState: UIControlState.Normal);
uiButton.addTarget(self, action: "buttonActionFromCode:", forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(uiButton)

2- Añadir la función IBAction:

@IBAction func buttonActionFromCode(sender:UIButton)
{
println("Button Action From Code")
}

Answer 8

Paso 1: Hacer un nuevo proyecto.

Paso 2: en ViewController.swift

import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// CODE
let btn = UIButton(type: UIButtonType.System) as UIButton
btn.backgroundColor = UIColor.blueColor()
btn.setTitle("CALL TPT AGENT", forState: UIControlState.Normal)
btn.frame = CGRectMake(100, 100, 200, 100)
btn.addTarget(self, action: "clickMe:", forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(btn)
}
func clickMe(sender:UIButton!) {
print("CALL")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Answer 9

Puede agregar UIButton, UIlable y UITextfield programáticamente de esta manera.

Código UIButton

// var button = UIButton.buttonWithType(UIButtonType.System) as UIButton
let button = UIButton(type: .System) // let preferred over var here
button.frame = CGRectMake(100, 100, 100, 50)
button.backgroundColor = UIColor.greenColor()
button.setTitle("Button", forState: UIControlState.Normal)
button.addTarget(self, action: "Action:", forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(button)

Código UILabel

var label: UILabel = UILabel()
label.frame = CGRectMake(50, 50, 200, 21)
label.backgroundColor = UIColor.blackColor()
label.textColor = UIColor.whiteColor()
label.textAlignment = NSTextAlignment.Center
label.text = "test label"
self.view.addSubview(label)

Codigo

var txtField: UITextField = UITextField()
txtField.frame = CGRectMake(50, 70, 200, 30)
txtField.backgroundColor = UIColor.grayColor()
self.view.addSubview(txtField)

Espero que esto te ayude.

Answer 10

Puedes crear así y puedes agregar acción también así ...

import UIKit
let myButton = UIButton(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
init(nibName nibNameOrNil: String!, bundle nibBundleOrNil: NSBundle!)
{ super.init(nibName: nibName, bundle: nibBundle)
myButton.targetForAction("tappedButton:", withSender: self)
}
func tappedButton(sender: UIButton!)
{
println("tapped button")
}

Answer 11

Sí en simulador. Algunas veces no reconoce el selector, hay un error que parece. Incluso no me enfrenté a su código, simplemente cambié el nombre de la acción (selector). Funciona

let buttonPuzzle:UIButton = UIButton(frame: CGRectMake(100, 400, 100, 50))
buttonPuzzle.backgroundColor = UIColor.greenColor()
buttonPuzzle.setTitle("Puzzle", forState: UIControlState.Normal)
buttonPuzzle.addTarget(self, action: "buttonAction:", forControlEvents: UIControlEvents.TouchUpInside)
buttonPuzzle.tag = 22;
self.view.addSubview(buttonPuzzle)

La función de selector está aquí:

func buttonAction(sender:UIButton!)
{
var btnsendtag:UIButton = sender
if btnsendtag.tag == 22 {
//println("Button tapped tag 22")
}
}

Answer 12

Swift: Ui Button crea programáticamente

let myButton = UIButton()
myButton.titleLabel!.frame = CGRectMake(15, 54, 300, 500)
myButton.titleLabel!.text = "Button Label"
myButton.titleLabel!.textColor = UIColor.redColor()
myButton.titleLabel!.textAlignment = .Center
self.view.addSubview(myButton)

Answer 13

 func viewDidLoad(){
saveActionButton = UIButton(frame: CGRect(x: self.view.frame.size.width - 60, y: 0, width: 50, height: 50))
self.saveActionButton.backgroundColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 0.7)
saveActionButton.addTarget(self, action: #selector(doneAction), for: .touchUpInside)
self.saveActionButton.setTitle("Done", for: .normal)
self.saveActionButton.layer.cornerRadius = self.saveActionButton.frame.size.width / 2
self.saveActionButton.layer.borderColor = UIColor.darkGray.cgColor
self.saveActionButton.layer.borderWidth = 1
self.saveActionButton.center.y = self.view.frame.size.height - 80
self.view.addSubview(saveActionButton)
}
func doneAction(){
print("Write your own logic")
}

Answer 14

En Swift 2 y iOS 9.2.1

var button: UIButton = UIButton(type: UIButtonType.Custom) as UIButton
self.button.frame = CGRectMake(130, 70, 60, 20)
self.button.setTitle("custom button", forState: UIControlState.Normal)
self.button.addTarget(self, action:"buttonActionFuncName", forControlEvents: UIControlEvents.TouchUpInside)
self.button.setTitleColor(UIColor.blackColor(), forState: .Normal)
self.button.layer.borderColor = UIColor.blackColor().CGColor
self.button.titleLabel?.font = UIFont(name: "Helvetica-Bold", size: 13)
self.view.addSubview(self.button)

Answer 15

Para Swift 3

let button = UIButton()
button.frame = CGRect(x: self.view.frame.size.width - 60, y: 60, width: 50, height: 50)
button.backgroundColor = UIColor.red
button.setTitle("Name your Button ", for: .normal)
button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
self.view.addSubview(button)
func buttonAction(sender: UIButton!) {
print("Button tapped")
}

Para Swift 4

 let button = UIButton()
button.frame = CGRect(x: self.view.frame.size.width - 60, y: 60, width: 50, height: 50)
button.backgroundColor = UIColor.red
button.setTitle("Name your Button ", for: .normal)
button.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
self.view.addSubview(button)
@objc func buttonAction(sender: UIButton!) {
print("Button tapped")
}

Answer 16

Swift 3

let btn = UIButton(type: .custom) as UIButton
btn.backgroundColor = .blue
btn.setTitle("Button", for: .normal)
btn.frame = CGRect(x: 100, y: 100, width: 200, height: 100)
btn.addTarget(self, action: #selector(clickMe), for: .touchUpInside)
self.view.addSubview(btn)
func clickMe(sender:UIButton!) {
print("Button Clicked")
}

Salida

Answer 17

 let myFirstButton = UIButton()
myFirstButton.setTitle("Software Button", forState: .Normal)
myFirstButton.setTitleColor(UIColor.redColor(), forState: .Normal)
myFirstButton.frame = CGRectMake(100, 300, 150, 50)
myFirstButton.backgroundColor = UIColor.purpleColor()
myFirstButton.layer.cornerRadius = 14
myFirstButton.addTarget(self, action: "pressed:", forControlEvents: .TouchUpInside)
self.view.addSubview(myFirstButton)
myFirstButton.hidden=true
nameText.delegate = self
func pressed(sender: UIButton!) {
var alertView = UIAlertView()
alertView.addButtonWithTitle("Ok")
alertView.title = "title"
alertView.message = "message"
alertView.show();
}

Answer 18

 // UILabel:
let label = UILabel()
label.frame = CGRectMake(35, 100, 250, 30)
label.textColor = UIColor.blackColor()
label.textAlignment = NSTextAlignment.Center
label.text = "Hello World"
self.view.addSubview(label)
// UIButton:
let btn: UIButton = UIButton(type: UIButtonType.Custom) as UIButton
btn.frame = CGRectMake(130, 70, 60, 20)
btn.setTitle("Click", forState: UIControlState.Normal)
btn.setTitleColor(UIColor.blackColor(), forState: .Normal)
btn.addTarget(self, action:Selector("clickAction"), forControlEvents: UIControlEvents.TouchUpInside)
view.addSubview(btn)
// Button Action:
@IBAction func clickAction(sender:AnyObject)
{
print("Click Action")
}

Answer 19

 var sampleButton:UIButton?
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewDidAppear(animated: Bool) {
sampleButton = UIButton(type: .RoundedRect)
//sampleButton.frame = CGRect(x:50, y:500, width:70, height:50)
sampleButton!.setTitle("Sample /n UI Button", forState: .Normal)
sampleButton!.titleLabel?.lineBreakMode = .ByWordWrapping
sampleButton!.titleLabel?.textAlignment = .Center
sampleButton!.setTitleColor(UIColor.whiteColor(), forState: .Normal)
sampleButton!.layer.cornerRadius = 6
sampleButton!.backgroundColor = UIColor.redColor().colorWithAlphaComponent(0.6)
sampleButton?.tintColor = UIColor.brownColor()
//Add padding around text
sampleButton!.titleEdgeInsets = UIEdgeInsetsMake(-10,-10,-10,-10)
sampleButton!.contentEdgeInsets = UIEdgeInsetsMake(5,5,5,5)
//Action set up
sampleButton!.addTarget(self, action: "sampleButtonClicked", forControlEvents: .TouchUpInside)
self.view.addSubview(sampleButton!)
//Button Constraints:
sampleButton!.translatesAutoresizingMaskIntoConstraints = false
//To anchor above the tab bar on the bottom of the screen:
let bottomButtonConstraint = sampleButton!.bottomAnchor.constraintEqualToAnchor(bottomLayoutGuide.topAnchor, constant: -20)
//edge of the screen in InterfaceBuilder:
let margins = view.layoutMarginsGuide
let leadingButtonConstraint = sampleButton!.leadingAnchor.constraintEqualToAnchor(margins.leadingAnchor)
bottomButtonConstraint.active = true
leadingButtonConstraint.active = true
}
func sampleButtonClicked(){
print("sample Button Clicked")
}

Answer 20

Uilabel code
var label: UILabel = UILabel()
label.frame = CGRectMake(50, 50, 200, 21)
label.backgroundColor = UIColor.blackColor()
label.textColor = UIColor.whiteColor()
label.textAlignment = NSTextAlignment.Center
label.text = "test label"
self.view.addSubview(label)

Answer 21

override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
var imageView = UIImageView(frame: CGRectMake(100, 150, 150, 150));
var image = UIImage(named: "BattleMapSplashScreen.png");
imageView.image = image;
self.view.addSubview(imageView);
}