How to set pickerView and Keyboard for one textField

Question

This is my first app. I have two text fields one for selecting Projects and second for selecting Tasks. If I select one project from the 1st text field and its showing related tasks in the 2nd text field. If task array is empty, then I have to show keyboard for entering some text for input to the 2nd text field. Please, someone, guide me how to achieve this task.

Answer 1

Let you have two UITextField as firstTextField and secondTextField. Then you can change the input view of UITextField as:

    if firstTextField.text == "" {
        secondTextField.inputView = nil
    } else {
        secondTextField.inputView = loadPicker()
    }

Where,

func loadPicker() -> UIPickerView {
    // Load picker and return from here
    return UIPickerView()
}