DeadlinePickerFragment.java

package se.dat255.grupp12;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;

import com.google.gson.Gson;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;

/**
 * Created by David on 10/1/13.
 * A modal dialog panel that allows the user to set a deadline for the chosen task
 */
public class DeadlinePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
    private Task task;
    private Calendar c = new GregorianCalendar(Locale.US);
    private DetailedViewActivity activity;
    private int listid;

    /**
     * Constructor defining which tasks deadline is to be set
     * @param task
     */
    public DeadlinePickerFragment(Task task, int listid,DetailedViewActivity activity){
        this.task=task;
        this.activity = activity;
        this.listid = listid;
    }

    /**
     * @see android.app.DatePickerDialog.OnDateSetListener
     * @param savedInstanceState
     * @return  the dialog in which the datepicker resides
     */
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        DatePickerDialog dialog;
        if(task.getDate()!=null){
            dialog = new DatePickerDialog(getActivity(), this, task.getDate().get(Calendar.YEAR),
                                                               task.getDate().get(Calendar.MONTH),
                                                               task.getDate().get(Calendar.DAY_OF_MONTH));
        } else{
            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 TimePickerDialog and return it
            dialog = new DatePickerDialog(getActivity(), this, year, month, day);
        }
        return dialog;
    }

    /**
     * Called when the user has set a date. The chosen data is then passed on in order
     * to update the task model.
     * @param view  The view calling the method
     * @param year  The year chosen
     * @param month The month chosen
     * @param day   The day chosen
     */
    public void onDateSet(DatePicker view, int year, int month, int day){
        String from = task.getDate().toString();
        c.set(c.YEAR, year);
        c.set(c.MONTH, month);
        c.set(c.DAY_OF_MONTH, day);
        task.setDate(c);
        activity.setDeadlineText();

		SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String d = format.format(c.getTime());

		Modification.logTaskEdit(task.getId(), listid,
                new Modification.Change(Modification.Change.TYPE_DEADLINE,
                        from, d));
    }


}