at.jclehner.rxdroid.preferences.DatePreference.java Source code

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Here is the source code for at.jclehner.rxdroid.preferences.DatePreference.java

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/**
 * RxDroid - A Medication Reminder
 * Copyright (C) 2011-2014 Joseph Lehner <joseph.c.lehner@gmail.com>
 *
 *
 * RxDroid 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. Additional terms apply (see LICENSE).
 *
 * RxDroid 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 RxDroid.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 */

package at.jclehner.rxdroid.preferences;

import android.annotation.TargetApi;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.util.AttributeSet;
import android.view.View;
import android.widget.DatePicker;

import org.joda.time.LocalDate;

import at.jclehner.rxdroid.Version;

public class DatePreference extends BaseAdvancedDialogPreference<LocalDate>
        implements DatePicker.OnDateChangedListener {
    private final LocalDate mToday = new LocalDate();
    private boolean mIsValidDate = true;
    private LocalDate mDate;

    public DatePreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        setDefaultValue(new LocalDate());
        setPositiveButtonText(android.R.string.ok);
        setNegativeButtonText(android.R.string.cancel);
    }

    @Override
    public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        final LocalDate date = new LocalDate(year, monthOfYear + 1, dayOfMonth);
        mIsValidDate = !date.isBefore(mToday);

        if (mIsValidDate)
            mDate = date;

        ((AlertDialog) getDialog()).getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(mIsValidDate);
    }

    @Override
    public CharSequence getDialogTitle() {
        return Version.SDK_IS_LOLLIPOP_OR_NEWER ? null : super.getDialogTitle();
    }

    @Override
    protected void onDialogClosed(boolean positiveResult) {
        super.onDialogClosed(mIsValidDate ? positiveResult : false);
    }

    @Override
    protected LocalDate getDialogValue() {
        return mDate;
    }

    @Override
    protected LocalDate fromPersistedString(String string) {
        return LocalDate.parse(string);
    }

    @Override
    protected String toPersistedString(LocalDate value) {
        return value.toString();
    }

    @TargetApi(11)
    @Override
    protected View onCreateDialogView() {
        final LocalDate value = getValue();
        final DatePicker picker = new DatePicker(getThemedContext());

        if (Version.SDK_IS_HONEYCOMB_OR_NEWER)
            picker.setMinDate(mToday.toDate().getTime());

        picker.init(value.getYear(), value.getMonthOfYear() - 1, value.getDayOfMonth(), this);

        return picker;
    }
}