ios - How to stroke a grid of points relative to UIView size? -


i'm trying stroke array of uibezierpath point grid on display. spacing of points relative size of uiview , like: (bounds.uiview / 10) make spacing 10 on each side

so have 2 questions:

1) how stroke single point using uibezierpath?

2) how create array of points , stroke them on uiview.

here example in swift 3:

func adddashedline(layer: calayer, dotsize: cgfloat) {     let  p0 = cgpoint(x: 0, y: layer.bounds.height/2)     let  p1 = cgpoint(x: layer.bounds.width, y: layer.bounds.height/2)      let  path = uibezierpath()     path.move(to:p0)     path.addline(to:p1)     path.stroke()      let steplength = float(layer.bounds.width/10.0)     let dashpattern = [nsnumber(value: 0.001), nsnumber(value: steplength)]      let shapelayer = cashapelayer()     shapelayer.frame = layer.bounds     shapelayer.strokecolor = uicolor.red.cgcolor     shapelayer.linewidth = dotsize     shapelayer.linejoin = kcalinejoinround     shapelayer.linecap = kcalinecapround     shapelayer.linedashpattern = dashpattern     shapelayer.linedashphase = dotsize     shapelayer.path = path.cgpath      layer.addsublayer(shapelayer) }

this example uses simple path draw horizontal line. if need draw line fixed amount of dots, need calculate it's length first , divide number of dots want drawn.

usage: 

override func viewdidload() {     super.viewdidload()     adddashedline(layer: view.layer, dotsize: 3) }

output:

enter image description here


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