ios - Repeat a function in set time Intervals -


i'v been using xcode/swift couple weeks , i'm working on first little ios game. nothing tricky trying learn program , having fun. leads me problem...

...i want background image have in app change randomly (from set of values in array) timed. example "every 2 seconds background image changes."

this have far, i've seen stuff nstimer i'm not sure how implement have.

@iboutlet weak var backview: uiimageview!  let backnames = ["back 1", "back 2", "back 3", "back 4", "back 5", "back 6", "back 7"]  let backvalue = int(arc4random_uniform(7))  backview.image = uiimage (named: backnames [backvalue])

so yeah said, know how make select random value background, happens when tap button. wondering how incorporate time feature arc4random.

thanks!

try animation of image :

var imglistarray :nsmutablearray = ["back 1", "back 2", "back 3", "back 4", "back 5", "back 6", "back 7"] countvalue in 1...7     {          var strimagename : string = "back \(countvalue).png"         var image  = uiimage(named:strimagename)         imglistarray .addobject(image)     }      self.imageview.animationimages = imglistarray;     self.imageview.animationduration = 1.0 // change per requirement     self.imageview.startanimating()

refer : https://stackoverflow.com/a/24364736/3901620


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