CODEWITHSUNDEEP
iosswift
user3871362
user3871362

Reputation: 41

Swift Image clicked Button not changing

I have a button which is supposed to change image when it is clicked but for some reason it is not changing to the image set for the UIControlState.Highlighted state

 override func viewDidLoad() {
    super.viewDidLoad()
    let versusButtonClickedImage = UIImage(named: "versus_button_cicked") as UIImage
    let versusButtonImage = UIImage(named: "versus_button") as UIImage
    versusButton.setImage( versusButtonImage, forState: UIControlState.Normal)


    versusButton.setImage(versusButtonClickedImage, forState: UIControlState.Highlighted)


}

Upvotes: 4

Views: 11042

Answers (4)

Louis Zhu
Louis Zhu

Reputation: 802

The 'highlighted' state means a finger press in the button and keep pressing (without leaving the screen). So if user 'tapped' (press then leave) the button. It would restore to the 'normal' state. You should set different images manually in the button's action method.

func buttonTapped() {
    let normalImage = self.button.imageForState(.Normal)
    let highlightedImage = self.button.imageForState(.Highlighted)
    button.setBackgroundImage(highlightedImage, forState: .Normal)
    button.setBackgroundImage(normalImage, forState: .Highlighted)
}

Upvotes: 0

Ali
Ali

Reputation: 19722

For the record, (at least as of today, December 2014), you need to provide the image name INCLUDING extension to UIImage(named:) for it to work.
As far as I know, in Obj-C you don't have to.

Example: 

self.CButton.setImage(UIImage(named: "ArrowUp30.png"), forState: UIControlState.Normal)

But this one does not work:

self.CButton.setImage(UIImage(named: "ArrowUp30"), forState: UIControlState.Normal)

Upvotes: 1

Ashish Kakkad
Ashish Kakkad

Reputation: 23892

You have to add extension of image.
And no need to create separate variables of image.

testBtn.setImage(UIImage(named:"a1.png"),forState:UIControlState.Normal)
testBtn.setImage(UIImage(named:"a2.png"),forState:UIControlState.Highlighted)

Upvotes: 9

Kumar KL
Kumar KL

Reputation: 15335

Hopefully, the problem might be with the image name, you might need to be provide with their extension as well : Instead of 

 let versusButtonClickedImage = UIImage(named: "versus_button_cicked") as UIImage

Use

let versusButtonClickedImage = UIImage(named: "versus_button_cicked.png") as UIImage

Upvotes: 1

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