如何为特定标记的 UIImageView 设置图像

Question

I am creating many UIImageViews with a unique tag

    let imgView = UIImageView()
    imgView.frame = CGRect(x:  tableView.bounds.size.width-100, y: 20, width: 40, height: 40)
    imgView.image = UIImage(named: "arrowUp")
    imgView.tag = section
    viewHeader.addSubview(imgView)

Now I want to set an other image "arrowDown" for a specific tagged UIImageView how can I programmatically set it?

Something like:

imgView.tag[i].image = UIImage(named: "arrowDown")

Answer 1

Try

(viewHeader.viewWithTag(<#YourTag#>) as? UIImageView)?.image = UIImage(named: "arrowDown")

---

Or create an array

var all = [UIImageView]()

viewHeader.addSubview(imgView)
all.append(imgView)

Then

all[tag].image = /////