Change WKInterfaceButton background image on tap

Question

I'm trying to change the background image of a WKInterfaceButton in my storyboard when a tap occurs. Also, on calling the setBackgroundImage to change the image, appendValue(1) does not work.

class keyPadInterfaceController : WKInterfaceController{
    @IBOutlet weak var OneClicked: WKInterfaceButton!
        let whiteImage = UIImage(named:"keybutton1.png")
        let goldImage = UIImage(named:"keybutton2.png")

    @IBAction func OneTapped(sender:AnyObject) {
        OneClicked.setBackgroundImage(goldImage)
        appendValue(1) 
    }
}

Check out `setBackgroundImage:forState:` instead of `setBackgroundImage:` — bgfriend0, May 19 '15 at 23:22
@bgfriend0 that method does not exist with a `WKInterfaceButton` — Daniel Storm, May 19 '15 at 23:35
@DanielStorm Gotcha, thanks for pointing that out. I didn't have time to check into the issue, hence why I posted a tip via comment instead of posting an answer. :) — bgfriend0, May 19 '15 at 23:37

Daniel Storm · Accepted Answer · 2015-05-19T23:45:22.113

3

To access images using setBackgroundImage you must pass them from the users iPhone first.

Alternatively, you can use setBackgroundImageNamed. As a result, WatchKit checks your WatchKit app bundle first, followed by the device-side cache.

OneClicked.setBackgroundImageNamed("keybutton2.png")

edited May 19 '15 at 23:45

answered May 19 '15 at 23:22

Daniel Storm

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OneClicked.setBackgroundImageNamed("keybutton2.png") worked! Thanks! – PS1690 May 20 '15 at 15:59

Change WKInterfaceButton background image on tap

1 Answers1