Having trouble passing property into drawRect in UIView - ios

Question

Not understanding why my property resets to the original value assigned (0.1). I pass in a fillHeight of 0.5 from outside method. The property is set in the convenience init, but does not carry over to the drawRect. What am I missing?
import UIKit
class MyView: UIView {
var fillHeight: CGFloat = 0.1
override init(frame: CGRect) {
super.init(frame: frame)
}
convenience init(fillHeight: CGFloat) {
self.init()
self.fillHeight = fillHeight
print("self.fillHeight: \(self.fillHeight) and fillHeight: \(fillHeight)")
}
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
}
override func drawRect(rect: CGRect) {
print("drawRect self.fillHeight: \(self.fillHeight)")
// custom stuff
}
}
Output on the console:
outsideAmount:Optional(0.5)
self.fillHeight: 0.5 and fillHeight: 0.5
drawRect self.fillHeight: 0.1
EDIT:
The outside call comes from UITableViewController with a custom UITableViewCell. The image is for the cell.
func configureCell(cell: CustomTableViewCell, atIndexPath indexPath: NSIndexPath) {
let myObject = self.fetchedResultsController.objectAtIndexPath(indexPath) as! MyObject
cell.nameLabel.text = myObject.name
cell.strengthLabel.text = myObject.strength
cell.myView = MyView(fillHeight: CGFloat(myObject.fillAmount!))
...
MORE EDIT:
import UIKit
class CustomTableViewCell: UITableViewCell {
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var strengthLabel: UILabel!
#IBOutlet weak var myView: MyView!
override func awakeFromNib() {
super.awakeFromNib()
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}

Answer 1

The problem is that you assign a new MyView instance whenever you configure your cell. You don't have to do that because the view is already there (because you added it in the nib).
So just set fillHeight on the cell's myView. That fixes the problem:
func configureCell(cell: CustomTableViewCell, atIndexPath indexPath: NSIndexPath) {
let myObject = self.fetchedResultsController.objectAtIndexPath(indexPath) as! MyObject
cell.nameLabel.text = myObject.name
cell.strengthLabel.text = myObject.strength
cell.myView.fillHeight = CGFloat(myObject.fillAmount!)
....
}