Swift UISlider that gets its values from an array of numbers -

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i'm newbie swift , believe me i've searched , searched answer already. want create uisliders values array of numbers in swift. camera app example array should obvious.

@ibaction func isovaluechanged(sender: uislider) {     let isoarray = ["24", "32", "50","64","80","100","125","160","200","250","320","400","500","640","720","800","1000","1250","1600","1800"] // available iphone 6s iso settings believe     let currentvalue = // need?     isotext.text = "\(currentvalue)" }

even harder representing shutter speeds 1/1000 - 32! see out there not easy 1 because there no mathematical representation calc array. possible?

i'm not quite sure understand want i'm guessing right.

// global variable or (accessible multiple functions) let isoarray = ["24", "32", "50","64","80","100","125","160","200","250","320","400","500","640","720","800","1000","1250","1600","1800"] // available iphone 6s iso settings believe  func functionthatcreatestheslideryo(...) {     slider.minimumvalue = 0     slider.maximumvalue = isoarray.count     slider.continuous = false }  @ibaction func isovaluechanged(sender: uislider) {     // instead of int(val) may want round(val) better ui     let currentvalue = isoarray[int(sender.value)]     isotext.text = "\(currentvalue)" }

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