net.openwatch.acluaz.fragment.DatePickerFragment.java Source code

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Here is the source code for net.openwatch.acluaz.fragment.DatePickerFragment.java

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//  Created by David Brodsky
//  Copyright (c) 2013 OpenWatch FPC. All rights reserved.
//
//  This file is part of ACLU-AZ-Android.
//
//  ACLU-AZ-Android is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  ACLU-AZ-Android is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with ACLU-AZ-Android.  If not, see <http://www.gnu.org/licenses/>.
package net.openwatch.acluaz.fragment;

import java.util.Calendar;
import java.util.GregorianCalendar;

import net.openwatch.acluaz.constants.Constants;

import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.util.Log;
import android.widget.DatePicker;
import android.widget.TextView;

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
    private static final String TAG = "DatePickerFragment";

    private int text_field_id = -1;

    public DatePickerFragment(int text_field_id) {
        this.text_field_id = text_field_id;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setRetainInstance(true);
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        // Create a new instance of DatePickerDialog and return it
        return new DatePickerDialog(getActivity(), this, year, month, day);
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        if (text_field_id == -1)
            return;

        Calendar c = Calendar.getInstance();
        GregorianCalendar gc = new GregorianCalendar(year, month, day);
        if (this.getActivity().findViewById(text_field_id) != null) {
            ((TextView) this.getActivity().findViewById(text_field_id))
                    .setText(Constants.date_formatter.format(gc.getTime()));
            Log.i(TAG, "DatePicker set editText view");
        }
    }

    // By default, the app will crash if the
    // hosting activity is destroyed while the dialogfragment is displayed i.e: during screen reotation
    @Override
    public void onDestroyView() {
        if (getDialog() != null && getRetainInstance())
            getDialog().setOnDismissListener(null);
        super.onDestroyView();
    }
}