I successfully added check numbers as text to a pickerView. But I wanted the text of the check numbers which had been used to be strikethrough. The code that can change a label's text to strikethrough does not work for items in a pickerView. You get something like "1023 { this is a strikethrough }" in the pickerView. Are there any fonts that have both strikethrough and normal characters? Any ideas?
I ended up using the following after seeing an example at http://makeapppie.com/tag/fonts-in-uipickerview/
This function simply had to be added to existing code. I discovered that every component had to be included or the components other than the check Number component would be blank.
func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView {
let myHueMax = 0.50
let myPickerFontSize: CGFloat = 20.0
print("component in lable == \(component)")
var pickerLabel = view as! UILabel!
var gHue = Double()
if view == nil { //if no label there yet
pickerLabel = UILabel()
//color the label's background
var hue:CGFloat
if component == payeeComponent {
hue = CGFloat(row)/CGFloat(payeesAlphbeticalArray.count)
}else if component == categoryComponent {
hue = CGFloat(row)/CGFloat(categoriesAlphbeticalArray.count)
}else{
hue = CGFloat(row)/CGFloat(checkNumbersAlphbeticalArray.count)
}
pickerLabel!.backgroundColor = UIColor(hue: hue, saturation: 1.0, brightness: 1.0, alpha: 1.0)
print("hue in label color == \(hue)")
gHue = Double(hue)
}
if component == payeeComponent {
let titleData = payeesAlphbeticalArray[row]
var myTitle: NSAttributedString
if ( gHue > myHueMax){
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.whiteColor()])
}else{
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.blackColor()])
}
pickerLabel!.attributedText = myTitle
pickerLabel!.textAlignment = .Center
return pickerLabel!
}else if component == categoryComponent{
let titleData = categoriesAlphbeticalArray[row]
var myTitle: NSAttributedString
if ( gHue > myHueMax){
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.whiteColor()])
}else{
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.blackColor()])
}
pickerLabel!.attributedText = myTitle
pickerLabel!.textAlignment = .Center
return pickerLabel!
}else if component == checkNumberComponent {
if checkNumbersAlphbeticalArray.isEmpty{
return pickerLabel!
}
let titleData = checkNumbersAlphbeticalArray[row]
var myTitle: NSAttributedString
if isCheckNumberUsed(titleData){
if ( gHue > myHueMax){
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.whiteColor(), NSStrikethroughStyleAttributeName: 1])
}else{
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.blackColor(), NSStrikethroughStyleAttributeName: 1])
}
}else{
if ( gHue > myHueMax){
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.whiteColor()])
}else{
myTitle = NSAttributedString(string: titleData, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: myPickerFontSize)!,NSForegroundColorAttributeName:UIColor.blackColor()])
}
}
pickerLabel!.attributedText = myTitle
pickerLabel!.textAlignment = .Center
return pickerLabel!
}
return pickerLabel
}