In my picker view I want the default row to be zero. This row has a value of 1. I want to be able to touch nothing on the view contoller except a button. I know there are similar questions but they did not work for me.
override func viewWillAppear(_ animated: Bool) {
self.pickerView.delegate = self
self.pickerView.dataSource = self
self.pickerView.selectRow(0, inComponent: 0, animated: true)
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return String(numbers[row])
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return numbers.count
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
therow = pickerView.selectedRow(inComponent: 0) + 1
}
then
@IBAction func submitTapped(_ sender: Any) { Print (therow) }
When I tap submit and print the value at row 0 it is 0, but if I wiggle the picker view and put it back on row 0 then it prints 1. I need to be able to touch nothing on the picker view and have it return the proper value of the default row.
You should use the row that the pickerview delegate method gives you , so you should modify your code as follows:
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
therow = numbers[row]
//theRowIndex = row //this is the index of row that you selected
}
e.g if numbers array is numbers = [1, 2, 3, 4], when you click on first row above code will set therow to be 1 and if you click on second row, it will set therow to be 2 and so on.
if you want to use the code that you wrote then you can use as follows:
therow = numbers[pickerView.selectedRow(inComponent: 0)]
this will give you the number for selected row , but I think you dont need it inside the above method.
Now if you dont want to touch the picker then I think you need to do this:
@IBAction func submitTapped(_ sender: Any) {
therow = numbers[self.pickerView.selectedRow(inComponent: 0)]
print(therow)
}