Manually setting a UIButton state

Question

I UIButton using + buttonWithType:

What I need to figure out is how to manually change the button state. There are times when I need it to be set to "disabled."

I read through the UIButton documentation but I cannot seem to find anything about manually setting a button state.

Any thoughts would be greatly appreciated.

To supplement what Ben said, check out the enabled property in UIControl: http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIControl_Class/Reference/Reference.html#//apple_ref/occ/instp/UIControl/enabled — Athena, Jan 01 '09 at 19:36

score 49 · Accepted Answer · edited Aug 23 '19 at 08:50

49

Did you try button.enabled = NO;?

Swift 5.0

button.isEnabled = false

edited Aug 23 '19 at 08:50

Sergio

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answered Jan 01 '09 at 17:11

Ben Gottlieb

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i wonder why button.isEnabled is not writable while button.enabled works – OMGPOP Jan 08 '14 at 08:30
if (![button isEnabled]) { button.enabled = YES; } works for me. – Sofeda Oct 28 '15 at 03:51

score 28 · Answer 2 · answered Nov 02 '11 at 22:35

28

there are also the states:

   button.highlighted = NO;
   button.selected = NO;

answered Nov 02 '11 at 22:35

roberthuttinger

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Zouhair Sassi · Answer 3 · 2019-12-13T09:25:45.153

4

Objective C:

button.selected = Yes;
button.highlighted = NO;
button.enabled = Yes;

Swift 4:

button.isSelected = true 
button.isEnabled = true

Also you can use:(swift 4)

 if (button.state == .selected) {
   //do something
 }

edited Dec 13 '19 at 09:25

answered Feb 26 '19 at 10:02

Zouhair Sassi

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score 3 · Answer 4 · answered Oct 23 '12 at 07:50

You can manually set state of UIButton.

UIButton *btnCheck=[UIButton buttonWithType:UIButtonTypeCustom];

if(btncheck isselected])
{
    btncheck.selected=FALSE;
}
else
{
    btncheck.selected=TRUE;
}

You can do operation on UIButton as per your requirement like perform some action when UIButton is selected and while not selected.

Hope this will help you....

score 2 · Answer 5 · answered Jan 13 '17 at 21:38

2

for Swift 3 you can use

button.isSelected = true

answered Jan 13 '17 at 21:38

Firas Shrourou

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score 0 · Answer 6 · answered Jul 23 '13 at 16:03

For anyone arriving here looking to change the 'state' of the button (as opposed to 'enabled'). Stephen is correct "This attribute is read only—there is no corresponding setter method."

What you really want to set is the state of the buttons cell.

[[myNSButtonOutlet cell] setState: NSOnState];  //Options NSOnState, NSOffState, NSMixedState

score 0 · Answer 7 · answered Mar 17 '21 at 04:42

To accommodate the needs of setting a different button look when it's selected, set isSelected = true.

Here is an example of setting the state, and changing the UIButton appearance based on that state, using a quiz game environment:

if sender.titleLabel?.text == correctAnswer {
    sender.isSelected = true
    // Set title color and image based on 'selected' state.
    sender.setTitleColor(.systemBlue, for: .selected)
    sender.setImage(Utilities.sharedInstance.returnAnswerButtonImage(for: .correctlyAnswered).withRenderingMode(.alwaysOriginal), for: .selected)
    sender.backgroundColor = .white
    sender.tintColor = .systemBlue
    // moveToNextQuestion()
} else {
    sender.isSelected = true
    sender.setTitleColor(.systemBlue, for: .selected)
    sender.setImage(Utilities.sharedInstance.returnAnswerButtonImage(for: .incorrectlyAnswered).withRenderingMode(.alwaysOriginal), for: .selected)
    sender.backgroundColor = .red
    sender.tintColor = .systemBlue
}

Manually setting a UIButton state

7 Answers7