func displayArrayGraphButton() {
let myView1 = self.view.viewWithTag(2001) as! UIImageView
let myView2 = self.view.viewWithtag(2002) as! UIImageView
myView1.backgroundColor = darkGray
myView2.backgroundColor = darkGray
myView1.isUserInteractionEnabled = ture
myView2.isUserInteractionEnabled = ture
let h = myView1.frame.size.height
let w = myView1.frame.size.height
let padding : CGFloat = 5
let margin : CGFloat = 10
let grid_w = (w -margin * 2 -padding * CGFloat(cols-1)) / CGFloat(cols)
let grid_h = (w -margin * 2 -padding * CGFloat(cols-1)) / CGFloat(rows)
for i in 0..<rows {
for j in 0..<cols {
let x = margin + CGFloat(j) * (grid_w + padding)
let y = margin + CGFloat(j) * (grid_w + padding)
let rect = CGRect(x: X, y:y, width: grid_w, height: grid_h)
let fileName1 = iv1[i*cols+j]
let img1 = UIImage(named: fileName1)
let btn1 = UIImageView(frame: rect)
btn1.setImage(img1, for: .normal)
btn1.backgroundColor = .yellow
btn1.tag = i*cols+j + 4000
btn1.addTarget(self, action: #selector(buttonCheck(_:)),
for: .touchUpInside)
myView1.addSubview(btn1)
let fileName2 = iv2[i*cols+j]
let img2 = UIImage(named: fileName2)
let btn2 = UIButton(frame: rect)
btn2.setImage(img2, for: .normal)
btn2.backgroundColor = .yellow
btn2.tag = i*cols+j + 5000
btn2.addTarget(self, action: #selector(buttonCheck(_:)),
for: .touchUpInside)
myView2.addSubview(btn2)
}
}