mardi 21 juin 2016

customize uipickerview inside uitableviewcell


I have a UIPickerView inside a UITableViewCell and would like to accomplish two things.

The UIPickerView displays 4 components, but the first will be seldom referred to. As a result, I would like to either A (preferred) have it display a blank for 0 and scroll to 1, or B modify the color so the 0 is not so dominant.

Secondly, I would like to hide the UIPickerView until selected.

I found both options, but all reside in a UIViewController and do not work within a UITableViewCell.

import UIKit

class DiveDurationTableViewCell: UITableViewCell, UIPickerViewDelegate, UIPickerViewDataSource

{
    @IBOutlet var textfieldBizCat: UITextField!
    @IBOutlet var pickerBizCat: UIPickerView! = UIPickerView()


    // ---------------------------------------------------------------------------------------------
    // MARK: - Internal Constant

    let numberOfComponents: Int             = 4
    let FirstDigitComponentRows: Int        = 2
    let SecondDigitComponentRows: Int       = 10
    let ThirdDigitComponentRows: Int        = 10
    let DisplayMinuteComponentRows: Int     = 1

    let Minutes: String                     = "Min"
    let MinNumber                           = 0
    let MaxNumber                           = 9


    private var diveTime: Array<Int>        = [Int]()

    var FirstDigit: Int                     = 0
    var SecondDigit: Int                    = 0
    var ThirdDigit: Int                     = 0
    var DisplayMinutes: String              = "Min"


    // ---------------------------------------------------------------------------------------------
    // MARK: - IBOutlets

    @IBOutlet var diveTimePicker: UIPickerView!


    // ---------------------------------------------------------------------------------------------
    // MARK: - UITableVieCell Methods


    //
    //  Called when we are initialized from a storyboard or nib file.
    //
    override func awakeFromNib()
    {
        super.awakeFromNib()


        //
        //  We create an array of integers from 0 to 9.
        //

        for i in self.MinNumber ..< self.MaxNumber+1
        {
            self.diveTime.append(i)
        }

        self.diveTimePicker.selectRow(0, inComponent: 0, animated: true)
        self.diveTimePicker.selectRow(0, inComponent: 1, animated: true)
        self.diveTimePicker.selectRow(0, inComponent: 2, animated: true)

    }

    //
    //  The item has been selected in the table.
    //

    override func setSelected(selected: Bool, animated: Bool)
    {
        super.setSelected(selected, animated: animated)
    }



    // ---------------------------------------------------------------------------------------------
    // MARK: - UIPickerViewDataSource Methods


    //
    //  Number of components in the picker.
    //

    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int
    {
        return self.numberOfComponents
    }

    //
    //  Number of rows in each component.
    //
    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
    {
        if component == 0
        {
            return self.FirstDigitComponentRows
        } else if component == 1   {
            return self.SecondDigitComponentRows
        } else if component == 2   {
            return self.ThirdDigitComponentRows
        } else  {
            return self.DisplayMinuteComponentRows
        }
    }

    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
    {

        if component == 0
        {
            return String(self.diveTime[row])
        }
        if component == 1
        {
            return String(self.diveTime[row])
        }
        if component == 2
        {
            return String(self.diveTime[row])
        }

        else
        {
         return self.DisplayMinutes
            }
        }


    //
    //  The user has selected in item in the picker view.
    //
    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int)
    {
    }
}

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