src/com/android/car/settings/datetime/DatePickerFragment.java

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */
package com.android.car.settings.datetime;

import android.app.AlarmManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.widget.DatePicker;

import androidx.annotation.LayoutRes;
import androidx.annotation.StringRes;

import com.android.car.settings.R;
import com.android.car.settings.common.BaseFragment;

import java.util.Calendar;

/**
 * Sets the system date.
 */
public class DatePickerFragment extends BaseFragment {
    private static final int MILLIS_IN_SECOND = 1000;

    private DatePicker mDatePicker;

    @Override
    @LayoutRes
    protected int getActionBarLayoutId() {
        return R.layout.action_bar_with_button;
    }

    @Override
    @LayoutRes
    protected int getLayoutId() {
        return R.layout.date_picker;
    }

    @Override
    @StringRes
    protected int getTitleId() {
        return R.string.date_picker_title;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        mDatePicker = (DatePicker) getView().findViewById(R.id.date_picker);

        Button button = (Button) getActivity().findViewById(R.id.action_button1);
        button.setText(android.R.string.ok);
        button.setOnClickListener(v -> {
            Calendar c = Calendar.getInstance();

            c.set(Calendar.YEAR, mDatePicker.getYear());
            c.set(Calendar.MONTH, mDatePicker.getMonth());
            c.set(Calendar.DAY_OF_MONTH, mDatePicker.getDayOfMonth());
            long when = Math.max(c.getTimeInMillis(), DatetimeSettingsFragment.MIN_DATE);
            if (when / MILLIS_IN_SECOND < Integer.MAX_VALUE) {
                ((AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE)).setTime(when);
                getContext().sendBroadcast(new Intent(Intent.ACTION_TIME_CHANGED));
            }
            getFragmentController().goBack();
        });
    }
}