Comment puis-je créer une base par UIButton
programmation? Par exemple, dans mon contrôleur de vue, lors de l'exécution de la viewDidLoad
méthode, trois UIButton
s seront créés dynamiquement et sa disposition ou ses propriétés sont définies.
Comment puis-je créer une base par UIButton
programmation? Par exemple, dans mon contrôleur de vue, lors de l'exécution de la viewDidLoad
méthode, trois UIButton
s seront créés dynamiquement et sa disposition ou ses propriétés sont définies.
Réponses:
En voici un:
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
- (void)viewDidLoad {
[super viewDidLoad];
[self addMyButton]; // Call add button method on view load
}
- (void)addMyButton{ // Method for creating button, with background image and other properties
UIButton *playButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
playButton.frame = CGRectMake(110.0, 360.0, 100.0, 30.0);
[playButton setTitle:@"Play" forState:UIControlStateNormal];
playButton.backgroundColor = [UIColor clearColor];
[playButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal ];
UIImage *buttonImageNormal = [UIImage imageNamed:@"blueButton.png"];
UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal];
UIImage *buttonImagePressed = [UIImage imageNamed:@"whiteButton.png"];
UIImage *strechableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[playButton setBackgroundImage:strechableButtonImagePressed forState:UIControlStateHighlighted];
[playButton addTarget:self action:@selector(playAction:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:playButton];
}
Objectif c
UIButton *but= [UIButton buttonWithType:UIButtonTypeRoundedRect];
[but addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[but setFrame:CGRectMake(52, 252, 215, 40)];
[but setTitle:@"Login" forState:UIControlStateNormal];
[but setExclusiveTouch:YES];
// if you like to add backgroundImage else no need
[but setbackgroundImage:[UIImage imageNamed:@"XXX.png"] forState:UIControlStateNormal];
[self.view addSubview:but];
-(void) buttonClicked:(UIButton*)sender
{
NSLog(@"you clicked on button %@", sender.tag);
}
Rapide
let myButton = UIButton() // if you want to set the type use like UIButton(type: .RoundedRect) or UIButton(type: .Custom)
myButton.setTitle("Hai Touch Me", forState: .Normal)
myButton.setTitleColor(UIColor.blueColor(), forState: .Normal)
myButton.frame = CGRectMake(15, 50, 300, 500)
myButton.addTarget(self, action: "pressedAction:", forControlEvents: .TouchUpInside)
self.view.addSubview( myButton)
func pressedAction(sender: UIButton!) {
// do your stuff here
NSLog("you clicked on button %@", sender.tag)
}
Swift3 et supérieur
let myButton = UIButton() // if you want to set the type use like UIButton(type: .RoundedRect) or UIButton(type: .Custom)
myButton.setTitle("Hi, Click me", for: .normal)
myButton.setTitleColor(UIColor.blue, for: .normal)
myButton.frame = CGRect(x: 15, y: 50, width: 300, height: 500)
myButton.addTarget(self, action: #selector(pressedAction(_:)), for: .touchUpInside)
self.view.addSubview( myButton)
func pressedAction(_ sender: UIButton) {
// do your stuff here
print("you clicked on button \(sender.tag)")
}
SwiftUI
par exemple, vous obtenez la mise en œuvre étape par étape du portail des développeurs SwiftUI
import SwiftUI
struct ContentView : View {
var body: some View {
VStack {
Text("Target Color Black")
Button(action: {
/* handle button action here */ })
{
Text("your Button Name")
.color(.white)
.padding(10)
.background(Color.blue)
.cornerRadius(5)
.shadow(radius: 5)
.clipShape(RoundedRectangle(cornerRadius: 5))
}
}
}
}
#if DEBUG
struct ContentView_Previews : PreviewProvider {
static var previews: some View {
ContentView()
}
}
#endif
exped declaration
sur myButton.setTitle ("Hi, Click")
myButton.setTitle("Hi, Click")
la syntaxe, myButton.setTitle("Hi, Click me", for: .normal)
j'ai essayé mon code, je ne suis pas confronté à des problèmes
Pour ajouter un bouton par programme à la vue de votre contrôleur, utilisez ce qui suit:
-(void)viewDidLoad
{
UIButton * btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
btn.frame = CGRectMake(0, 0, 100, 50);
[btn setTitle:@"Hello, world!" forState:UIControlStateNormal];
[self.view addSubview:btn];
}
Pour en ajouter trois, rincez et répétez.
Ici, vous pouvez créer dynamiquement un UIButton:
//For button image
UIImage *closebtnimg = [UIImage imageNamed:@"close_btn.png"];
//Custom type button
btnclose = [[UIButton buttonWithType:UIButtonTypeCustom]retain];
//Set frame of button means position
btnclose.frame = CGRectMake(103, 257, 94, 32);
//Button with 0 border so it's shape like image shape
[btnclose.layer setBorderWidth:0];
//Set title of button
[btnclose setTitle:@"CLOSE" forState:UIControlStateNormal];
[btnclose addTarget:self action:@selector(methodname:) forControlEvents:UIControlEventTouchUpInside];
//Font size of title
btnclose.titleLabel.font = [UIFont boldSystemFontOfSize:14];
//Set image of button
[btnclose setBackgroundImage:closebtnimg forState:UIControlStateNormal];
Allez, c'est 2014! Pourquoi l' affectation d'évaluation de bloc de code n'est-elle pas encore utilisée, car les tendances montrent que c'est l' avenir!
UIButton* button = ({
//initialize button with frame
UIButton* button = [[UIButton alloc] initWithFrame:({
CGRect frame = CGRectMake(10.0, 10.0, 200.0, 75.0);
frame;
})];
//set button background color
[button setBackgroundColor:({
UIColor* color = [UIColor colorWithRed:1.0 green:1.0 blue:0.0 alpha:1.0];
color;
})];
//set button title for state
[button setTitle:({
NSString* string = [NSString stringWithFormat:@"title words"];
string;
}) forState:({
UIControlState state = UIControlStateNormal;
state;
})];
//set selector
[button addTarget:self action:({
SEL select = @selector(method:);
select;
}) forControlEvents:({
UIControlEvents event = UIControlEventTouchUpInside;
event;
})];
//return button
button;
});
[self.view addSubview:button];
whoa!
Ou les résultats exacts peuvent être obtenus comme tels:
UIButton* button = [[UIButton alloc] initWithFrame:CGRectMake(10.0, 10.0, 200.0, 75.0)];
[button setBackgroundColor:[UIColor colorWithRed:1.0 green:1.0 blue:0.0 alpha:1.0]];
[button setTitle:@"title words" forState:UIControlStateNormal];
[button addTarget:self action:@selector(method:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
'action:@selector(aMethod:)'
écrire une méthode comme celle-ci:
- (void)aMethod:(UIButton*)button
{
NSLog(@"Button clicked.");
}
Ça marche pour moi. Merci. KS.
Objectif c
// Create the Button with RoundedRect type
UIButton *mybutton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
// instend of "Click Me" you can write your own message/Label
[mybutton setTitle:@"Click Me" forState:UIControlStateNormal];
// create the Rectangle Frame with specified size
mybutton.frame = CGRectMake(10, 10, 300, 140); // x,y,width,height [self.view addSubview:mybutton];// add button to your view.
Rapide
let button = UIButton(type: UIButtonType.System) as UIButton
button.frame = CGRectMake(100, 100, 100, 50)
button.backgroundColor = UIColor.greenColor()
button.setTitle("Test Button", forState: UIControlState.Normal)
self.view.addSubview(button)
essayez ce code pour créer un bouton et répétez-le encore 2 fois avec des coordonnées différentes et la méthode (myButtonClick) est appelée lorsque le bouton est enfoncé
UIButton *editButton = [UIButton buttonWithType: UIButtonTypeCustom];
editButton.frame = CGRectMake(0, 0, width, height);
[editButton setBackgroundImage: editButtonImage forState: UIControlStateNormal];
[myButton addTarget:self action:@selector(myButtonClick:) forControlEvents:UIControlEventTouchUpInside];
editButton.adjustsImageWhenHighlighted = YES;
editButton.titleLabel.text = @"Edit";
editButton.titleLabel.textColor = [UIColor whiteColor];
editButton.titleLabel.textAlignment = UITextAlignmentCenter;
editButton.titleLabel.font = [UIFont fontWithName: @"Helvetica" size: 14];
[self.view addSubview: editButton];
-(void) myButtonClick:(NSString *)myString{
NSLog(@"you clicked on button %@", myString);
}
Découvrez ce code:
Swift 4.2
let frameimg = CGRect(x: 15, y: 46, width: 55, height: 70)
let btnTest = UIButton(type: .roundedRect)
btnTest.frame = frameimg
btnTest.tag = 11
btnTest.setTitle("Test Button", for: .normal)
btnTest.addTarget(self, action: #selector(self.buttonAction(sender:)), for: .touchUpInside)
btnTest.titleLabel?.font = UIFont.boldSystemFont(ofSize: 12.0)
btnTest.titleLabel?.lineBreakMode = .byWordWrapping
btnTest.titleLabel?.numberOfLines = 2
btnTest.titleLabel?.textAlignment = .center
btnTest.setTitleColor(UIColor.gray, for: .normal)
btnTest.setTitleColor(UIColor.blue, for: .selected)
btnTest.showsTouchWhenHighlighted = true
view.addSubview(btnTest)
Objectif c
CGRect frameimg = CGRectMake(15, 46, 55,70);
UIButton *SelectionButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
SelectionButton.frame=frameimg;
SelectionButton.tag=i;
[SelectionButton setTitle:[SelectionArray objectAtIndex:0] forState:UIControlStateNormal];
[SelectionButton addTarget:self action:@selector(BtnSelected:)
forControlEvents:UIControlEventTouchUpInside];
[SelectionButton.titleLabel setFont:[UIFont boldSystemFontOfSize:12.0]];
SelectionButton.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
SelectionButton.titleLabel.numberOfLines = 2;
SelectionButton.titleLabel.textAlignment = NSTextAlignmentCenter;
[SelectionButton setTitleColor:[UIColor grayColor] forState:(UIControlStateNormal)];
[SelectionButton setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
[SelectionButton setShowsTouchWhenHighlighted:YES];
[self.view addSubview:SelectionButton];
J'espère que ce code fonctionne pour vous.
Vous pouvez simplement mettre l'instance de créateur dans une boucle et ajouter dynamiquement des noms à partir d'un tableau si vous le souhaitez.
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(10.0, 100.0, 300.0, 20.0);
[self.view addSubview:button];
-(UIButton *)addButton:(NSString *)title :(CGRect)frame : (SEL)selector :(UIImage *)image :(int)tag{
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
btn.frame = frame;
[btn addTarget:self action:selector forControlEvents:UIControlEventTouchUpInside];
[btn setTitle:title forState:UIControlStateNormal];
[btn setImage:image forState:UIControlStateNormal];
btn.backgroundColor = [UIColor clearColor];
btn.tag = tag;
return btn;
}
et vous pouvez l'ajouter à la vue:
[self.view addSubview:[self addButton:nil :self.view.frame :@selector(btnAction:) :[UIImage imageNamed:@"img.png"] :1]];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
Ceci est également un exemple pour créer trois boutons. Il suffit de déplacer leur emplacement.
UIImage *buttonOff = [UIImage imageNamed:@"crysBallNorm.png"];
UIImage *buttonOn = [UIImage imageNamed:@"crysBallHigh.png"];
UIButton *predictButton = [UIButton alloc];
predictButton = [UIButton buttonWithType:UIButtonTypeCustom];
predictButton.frame = CGRectMake(180.0, 510.0, 120.0, 30.0);
[predictButton setBackgroundImage:buttonOff forState:UIControlStateNormal];
[predictButton setBackgroundImage:buttonOn forState:UIControlStateHighlighted];
[predictButton setTitle:@"Predict" forState:UIControlStateNormal];
[predictButton setTitleColor:[UIColor purpleColor] forState:UIControlStateNormal];
[predictButton addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:predictButton];
Vous pouvez créer un bouton par ce code.
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[btn addTarget:self action:@selector(btnAction) forControlEvents:UIControlEventTouchDragInside];
[btn setTitle:@"click button" forState:UIControlStateNormal];
btn.frame = CGRectMake(50, 100, 80, 40);
[self.view addSubview:btn];
Voici la méthode d'action des boutons
-(void)btnAction
{
NSLog(@"button clicked");
}
Pour Swift 2.0:
let btnObject : UIButton = UIButton()
btnObject.frame = CGRect(x: 8, y: 89, width: 70, height: 22)
btnObject.titleLabel?.font = UIFont(name: "Helvetica Neue", size: 13)
btnObject.titleLabel?.textColor = UIColor.whiteColor()
btnObject.backgroundColor = UIColor(red: 189/255, green: 176/255, blue: 0/255, alpha: 1)
btnObject.titleLabel?.textAlignment = NSTextAlignment.Center
btnObject.addTarget(self, action: "btnbtnObjectClick:", forControlEvents: UIControlEvents.TouchUpInside)
subView.addSubview(btnObject)
Pour créer UIButton par programme, nous pouvons créer à la fois l'objectif c et rapide
SWIFT 3
let buttonSwift = UIButton(type: UIButtonType.system) as UIButton
//OR
let buttonSwift = UIButton(type: UIButtonType.Custom) as UIButton
//Set Frame for Button
buttonSwift.frame = CGRect(x: 100, y: 100, width: 200, height: 100)
//Set title for button
buttonSwift.setTitle("ClickMe", for: .normal)
//If you want to set color for button title
buttonSwift.setTitleColor(UIColor.white, for: .normal)
//If you want to set Background color for button
buttonSwift.backgroundColor = UIColor.black
//If you want to set tag for button
buttonSwift.tag = 0
//If you want to add or set image for button
let image = UIImage(named: "YourImageName") as UIImage?
buttonSwift.setImage(image, for: .normal)
//If you want to add or set Background image for button
buttonSwift.setBackgroundImage(image, for: .normal)
//Add action for button
buttonSwift.addTarget(self, action: #selector(actionPressMe), for:.touchUpInside)
//Add button as SubView to Super View
self.view.addSubview(buttonSwift)
Méthode d'action UIButton
func actionPressMe(sender: UIButton!)
{
NSLog("Clicked button tag is %@", sender.tag)
OR
print("Clicked button tag is \(sender.tag)")
//Then do whatever you want to do here
........
}
OBJECTIF C
UIButton *buttonObjectiveC = [UIButton buttonWithType:UIButtonTypeCustom];
OR
UIButton *buttonObjectiveC = [UIButton buttonWithType:UIButtonTypeSystem];
buttonObjectiveC.frame = CGRectMake(200, 100, 200, 100);
//Set title for button
[buttonObjectiveC setTitle:@"ClickMe" forState:UIControlStateNormal];
//If you want to set color for button title
[buttonObjectiveC setTitleColor:[UIColor whiteColor] forState: UIControlStateNormal];
//If you want to set Background color for button
[buttonObjectiveC setBackgroundColor:[UIColor blackColor]];
//If you want to set tag for button
buttonSwift.tag = 0;
//If you want to add or set image for button
UIImage *image = [UIImage imageNamed:@"YourImageName"];
[buttonObjectiveC setImage:image forState:UIControlStateNormal];
//If you want to add or set Background image for button
[buttonObjectiveC setBackgroundImage:image forState:UIControlStateNormal];
//Add action for button
[buttonObjectiveC addTarget:self action:@selector(actionPressMe:)forControlEvents:UIControlEventTouchUpInside];
//Add button as SubView to Super View
[self.view addSubview:buttonObjectiveC];
Méthode d'action UIButton
- (void)actionPressMe:(UIButton *)sender
{
NSLog(@"Clicked button tag is %@",sender.tag);
//Then do whatever you want to do here
..........
}
La capture d'écran de sortie est
-(void)addStuffToView
{
UIButton *aButton = [[UIButton alloc] initWithFrame:CGRectMake(20, 20, 20, 20)]; //(x, y, width, height of button on screen
[aButton setTitle:@"Button" forState:UIControlStateNormal];//puts the text on the button
aButton.titleLabel.font = somefont;//sets the font if one is already stated
aButton.titleLabel.font = [UIFont fontWithName:@"Arial-MT" size:12];//sets the font type and size
[aButton addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside];//see back method below
[aButton setBackgroundImage:[UIImage imageNamed:@"someImage.png"] forState:UIControlStateNormal];//sets the image of the button
[self.view addSubview:back];
}
-(void)back
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle.....]
}
-(void)viewDidLoad
{
[super viewDidLoad];
[self addStuffToView];//adds all items built in this method to the view
}
Pour Swift 2.2 (avec la nouvelle déclaration "selector").
let btn = UIButton(type: UIButtonType.System) as UIButton
btn.frame = CGRectMake(0, 0, 100, 20) // set any frame you want
btn.setTitle("MyAction", forState: UIControlState.Normal)
btn.addTarget(self, action: #selector(MyClass.myAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
self.view.addSubview(btn)
func myAction(sender:UIButton!){
// Some action
}
Vous pouvez l'implémenter dans votre ViewDidLoad
méthode:
continuebtn = [[UIButton alloc]initWithFrame:CGRectMake(10, 100, view1.frame.size.width-20, 40)];
[continuebtn setBackgroundColor:[UIColor grayColor]];
[continuebtn setTitle:@"Continue" forState:UIControlStateNormal];
continuebtn.layer.cornerRadius = 10;
continuebtn.layer.borderWidth =1.0;
continuebtn.layer.borderColor = [UIColor blackColor].CGColor;
[continuebtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[continuebtn addTarget:self action:@selector(continuetonext) forControlEvents:UIControlEventTouchUpInside];
[view1 addSubview:continuebtn];
Où continuetonext
est:
-(void)continuetonext
{
GeneratePasswordVC *u = [[GeneratePasswordVC alloc]init];
[self.navigationController pushViewController:u animated:YES];
}
Depuis Swift 3, plusieurs modifications ont été apportées à la syntaxe.
Voici comment créer un bouton de base à partir de Swift 3:
let button = UIButton(type: UIButtonType.system) as UIButton
button.frame = CGRect(x: 100, y: 100, width: 100, height: 50)
button.backgroundColor = UIColor.green
button.setTitle("Example Button", for: UIControlState.normal)
self.view.addSubview(button)
Voici les modifications apportées depuis les versions précédentes de Swift:
let button = UIButton(type: UIButtonType.System) as UIButton
// system no longer capitalised
button.frame = CGRectMake(100, 100, 100, 50)
// CGRectMake has been removed as of Swift 3
button.backgroundColor = UIColor.greenColor()
// greenColor replaced with green
button.setTitle("Example Button", forState: UIControlState.Normal)
// normal is no longer capitalised
self.view.addSubview(button)
Essayez-le ....
UIButton *finalPriceBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
finalPriceBtn.frame=CGRectMake(260, 25, 45, 15);
[finalPriceBtn addTarget:self action:@selector(goBtnClk:) forControlEvents:UIControlEventTouchUpInside];
finalPriceBtn.titleLabel.font=[UIFont systemFontOfSize:12];
[finalPriceBtn setTitle:[NSString stringWithFormat:@"$%.2f",tempVal] forState:UIControlStateNormal];
finalPriceBtn.titleLabel.textColor = [UIColor colorWithRed: 2.0f/255.0f green: 155.0f/255.0f blue: 213.0f/255.0f alpha:1];
finalPriceBtn.titleLabel.textAlignment=UITextAlignmentLeft;
[imageView addSubview:finalPriceBtn];
J'espère que j'ai aidé.
UIButton *custombutton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[custombutton addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[custombutton setTitle:@"Click" forState:UIControlStateNormal];
custombutton.frame = CGRectMake(80.0, 110.0, 160.0, 40.0);
custombutton.titleLabel.textColor = [UIColor colorWithRed: 2.0f/255.0f green: 155.0f/255.0f blue: 213.0f/255.0f alpha:1];
[custombutton setImage:[UIImage imageNamed:@"hh.png"] forState:UIControlStateNormal];
[view addSubview:custombutton];
essaye ça:
écrivez d'abord ceci dans votre fichier .h de viewcontroller
UIButton *btn;
Maintenant, écrivez ceci dans votre fichier .m de viewcontrollers viewDidLoad.
btn=[[UIButton alloc]initWithFrame:CGRectMake(50, 20, 30, 30)];
[btn setBackgroundColor:[UIColor orangeColor]];
[btn setTitle: @"My Button" forState:UIControlStateNormal];
[btn setTitleColor: [UIColor blueVolor] forState:UIControlStateNormal];
[btn.layer setBorderWidth:1.0f];
[btn.layer setBorderColor:[UIColor BlueVolor].CGColor];
//adding action programatically
[btn addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];
écrire cette méthode viewDidLoad externe dans le fichier .m de votre contrôleur de vue
- (IBAction)btnClicked:(id)sender
{
//Write a code you want to execute on buttons click event
}
Pour Swift 3 (code encore plus court)
let button = UIButton(type: UIButtonType.custom)
button.frame = CGRect(x: 0, y: 0, width: 200.0, height: 40.0)
button.addTarget(nil, action: #selector(tapButton(_:)), for: UIControlEvents.touchUpInside)
button.tintColor = UIColor.white
button.backgroundColor = UIColor.red
button.setBackgroundImage(UIImage(named: "ImageName"), for: UIControlState.normal)
button.setTitle("MyTitle", for: UIControlState.normal)
button.isEnabled = true
func tapButton(sender: UIButton) {
}
La version Swift3 devrait être
let myButton:UIButton = {
let myButton = UIButton() // if you want to set the type use like UIButton(type: .RoundedRect) or UIButton(type: .Custom)
myButton.setTitle("Hai Touch Me", for: .normal)
myButton.setTitleColor(UIColor.blue, for: .normal)
myButton.frame = CGRect(x: 20, y: 20, width: 100, height: 40)
myButton.addTarget(self, action: #selector(ViewController.pressedAction(_:)), for: .touchUpInside)
self.view.addSubview(myButton)
return myButton
}()
UIButton *buttonName = [UIButton
buttonWithType:UIButtonTypeRoundedRect];
[buttonName addTarget:self
action:@selector(aMethod:)forControlEvents:UIControlEventTouchDown];
[buttonName setTitle:@"Show View" forState:UIControlStateNormal];
.frame = CGRectMake(80.0, 210.0, 160.0, 40.0); [view
addSubview:buttonName];
Dans Swift 5 et Xcode 10.2
Fondamentalement, nous avons deux types de boutons.
1) Bouton de type de système
2) Bouton de type personnalisé (dans le bouton de type personnalisé, nous pouvons définir l'image d'arrière-plan du bouton)
Et ces deux types de boutons ont peu d' états de contrôle https://developer.apple.com/documentation/uikit/uicontrol/state
Les états importants sont
1) État normal
2) État sélectionné
3) État mis en évidence
4) État désactivé etc ...
//For system type button
let button = UIButton(type: .system)
button.frame = CGRect(x: 100, y: 250, width: 100, height: 50)
// button.backgroundColor = .blue
button.setTitle("Button", for: .normal)
button.setTitleColor(.white, for: .normal)
button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 13.0)
button.titleLabel?.textAlignment = .center//Text alighment center
button.titleLabel?.numberOfLines = 0//To display multiple lines in UIButton
button.titleLabel?.lineBreakMode = .byWordWrapping//By word wrapping
button.tag = 1//To assign tag value
button.btnProperties()//Call UIButton properties from extension function
button.addTarget(self, action:#selector(self.buttonClicked), for: .touchUpInside)
self.view.addSubview(button)
//For custom type button (add image to your button)
let button2 = UIButton(type: .custom)
button2.frame = CGRect(x: 100, y: 400, width: 100, height: 50)
// button2.backgroundColor = .blue
button2.setImage(UIImage.init(named: "img.png"), for: .normal)
button2.tag = 2
button2.btnProperties()//Call UIButton properties from extension function
button2.addTarget(self, action:#selector(self.buttonClicked), for: .touchUpInside)
self.view.addSubview(button2)
@objc func buttonClicked(sender:UIButton) {
print("Button \(sender.tag) clicked")
}
//You can add UIButton properties using extension
extension UIButton {
func btnProperties() {
layer.cornerRadius = 10//Set button corner radious
clipsToBounds = true
backgroundColor = .blue//Set background colour
//titleLabel?.textAlignment = .center//add properties like this
}
}