CODEWITHSUNDEEP
objective-ciosxcodeevent-handlinguibutton
Julian Coltea
Julian Coltea

Reputation: 3609

Changing UIButton text

So I'm trying to update the text on a UIButton when I click it. I'm using the following line to change the text:

calibrationButton.titleLabel.text = @"Calibration";

I have verified that the text is changing, but when I run the app and I click on the button, it changes to "Calibration" for a split second and then goes right back to its default value. Any ideas why this might be happening? Is there some sort of refresh function I need to be calling?

Upvotes: 105

Views: 102761

Answers (7)

Johan Franzén
Johan Franzén

Reputation: 2424

If you don't want to set the title for all states, just set it for the normal state since the title for the unset states will default to the title of the normal state.

btn.setTitle("Some text", for:.normal)

Upvotes: 1

Ashley Mills
Ashley Mills

Reputation: 53181

To set button text use the following method:

[calibrationButton setTitle: @"Calibration" forState: UIControlStateNormal];

See UIButton class reference for more details... http://developer.apple.com/library/ios/#documentation/uikit/reference/UIButton_Class/UIButton/UIButton.html

Or in Swift 3:

calibrationButton.setTitle("Calibration", for: .normal)

Upvotes: 37

Suraj Sonawane
Suraj Sonawane

Reputation: 2494

For Swift 2.0:

let btnObject : UIButton  = UIButton() 
btnObject.frame = CGRect(x: 8, y: 89, width: 70, height: 22)
btnObject.setTitle("Button Title", forState: UIControlState.Normal)
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)

Upvotes: 0

Stephen Chen
Stephen Chen

Reputation: 3057

For Swift 3.0 

let button = UIButton(type: .system)
button.frame = CGRect(x: 100, y: 100, width: 100, height: 100)
button.setTitle("set here", for: .normal)
button.addTarget(self, action: #selector(TableViewController.actionButtonTocuh), for: .touchUpInside)
button.titleLabel?.textColor  = #colorLiteral(red: 0.1019607857, green: 0.2784313858, blue: 0.400000006, alpha: 1)
view.addSubview(button)

Upvotes: 2

Jesse Gumpo
Jesse Gumpo

Reputation: 4797

When laying out its subviews, a UIButton will set its titleLabel's text value using its own title values, so that you can set up to four different strings for the four states (normal, highlighted, selected, disabled).

Because of this feature, setting the titleLabel's text directly won't persist, and will be reset by the button when it lays out its subviews.

This is what you have to do to change the title text for a button's state.

[calibrationButton setTitle:@"Calibration" forState:UIControlStateNormal];

Upvotes: 254

bhautikmewada191
bhautikmewada191

Reputation: 663

programmatically you can set button title like below: 

[myButton setTitle:@"buttonTitle" forState:UIControlStateNormal];

you can also set button title property from storyboard.

Upvotes: 6

user3429534
user3429534

Reputation: 51

Not a huge deal, and possibly obvious, but there are several states available for buttons. If you provide the 'wrong' one, you will not see the text change as desired.

I noticed that my button was not showing the text I added, using the methods shown here. Check this link to make sure you are providing the UIControlState that you intend.

What's the difference between UIControlStateHighlighted and UIControlStateSelected?

Upvotes: 2

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