ios - How to draw a line in the simplest way in swift -

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i new swift , xcode , trying make tic tac toe game. have figured out except how draw line through 3 x's or o's. have no idea on how draw lines. have looked on web answer , can't figure out. can help.

thanks ahead

try looking uibezierpath lot drawing lines. documentation here example: 

override func drawrect(rect: cgrect) {       var apath = uibezierpath()        apath.movetopoint(cgpoint(x:/*put starting location*/, y:/*put starting location*/))        apath.addlinetopoint(cgpoint(x:/*put next location*/, y:/*put next location*/))        //keep using method addlinetopoint until 1 close path        apath.closepath()        //if want stroke red color       uicolor.redcolor().set()       apath.stroke()       //if want fill        apath.fill() }

make sure put code in drawrect. in example above.

if need update drawing call setneedsdisplay() update.


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