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androiddatepickerxamarin.androidandroid-datepicker

Is there any way to set Date in DatePickerFragment in Android(Xamarin)


I am making one Dialog. In the Initial state the DatePickerFragment show the current date. and I set that date to my TextView. it's working fine.

The below is the code :

DatePickerFragment class

public class DatePickerFragment : DialogFragment,
                                  DatePickerDialog.IOnDateSetListener
    {
        public static readonly string TAG = "X:" + typeof(DatePickerFragment).Name.ToUpper();

        // Initialize this value to prevent NullReferenceExceptions.
        Action<DateTime> _dateSelectedHandler = delegate { };

        public static DatePickerFragment NewInstance(Action<DateTime> onDateSelected)
        {
            DatePickerFragment frag = new DatePickerFragment();
            frag._dateSelectedHandler = onDateSelected;

            return frag;
        }

        public override Dialog OnCreateDialog(Bundle savedInstanceState)
        {
            DateTime currently = DateTime.Now;
            DatePickerDialog dialog = new DatePickerDialog(Activity,
                                                           this,
                                                           currently.Year,
                                                           currently.Month - 1,
                                                           currently.Day);
            return dialog;
        }

        public void OnDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
        {
            DateTime selectedDate = new DateTime(year, monthOfYear + 1, dayOfMonth);

            _dateSelectedHandler(selectedDate);

        }
    }

on Activity use this way inside my dialog.

txt_selectDate = dialog.FindViewById<TextView>(Resource.Id.txt_selectDate);
                        DateTime cuurently = DateTime.Now;
                        txt_selectDate.Text = cuurently.ToString("dd/MM/yyyy",CultureInfo.InvariantCulture);
                        dialog.Show();

                        var select_date = dialog.FindViewById<ImageView>(Resource.Id.select_date);
                        select_date.Click += SelectDate_Click;

and Create click method like this

void SelectDate_Click(object sender, EventArgs e)
            {
                DatePickerFragment frag = DatePickerFragment.NewInstance(delegate (DateTime time)
                    {
                        var pickupDate = time.ToString("yyyy-MM-dd'T'HH:mm:ss'Z'", CultureInfo.InvariantCulture);
                        txt_selectDate.Text = time.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture);

                    });

                frag.Show(context.FragmentManager, DatePickerFragment.TAG);
            }

Problem :

Now when i again click to pickup new Date the DatePickerFragment show the Current date not the previous selected Date. So is there any way I can set the Previous date to DatePickerFragment?

Any Help be Appreciated.

Update :

enter image description here

After adding param it will give this response.


Solution

  • Instead of using DatePickerFragment I use DatePickerDialog with following way which was solve my problem.

    Display DatePicker like this way

    ddtime = new DatePickerDialog(context, OnDateSet, DateTime.Today.Year, DateTime.Today.Month - 1,
                                                         DateTime.Today.Day
                                                                 );
    
                                ddtime.DatePicker.DateTime = selected_Date;
                                ddtime.SetTitle("");
                                ddtime.Show();
    

    and it's method OnDataSet like this way

    async void OnDateSet(object sender, DatePickerDialog.DateSetEventArgs e)
                {
                    default_date = e.Date.Year + "/" + e.Date.Month + "/" + e.Date.Day;
                    txt_selectDate.Text = e.Date.Day + "/" + e.Date.Month + "/" + e.Date.Year;
                    selected_Date = e.Date;
                }
    

    and finally my selected_Date is set in datePicker like below way

    ddtime.DatePicker.DateTime = selected_Date;