29e812f299
Some bloadcast is thrown when Activity isn't ready. onResume() correctly update time so we don't need to call updateTimeAndDateDisplay() when Activity is null. Change-Id: Iea8feaa1111bb87e66462ed0f95fde9d07f2c68d
391 lines
13 KiB
Java
391 lines
13 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import android.app.Activity;
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import android.app.DatePickerDialog;
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import android.app.Dialog;
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import android.app.TimePickerDialog;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.SharedPreferences;
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import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
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import android.os.Bundle;
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import android.os.SystemClock;
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import android.preference.CheckBoxPreference;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.PreferenceScreen;
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import android.provider.Settings;
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import android.provider.Settings.SettingNotFoundException;
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import android.text.format.DateFormat;
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import android.widget.DatePicker;
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import android.widget.TimePicker;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.TimeZone;
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public class DateTimeSettings extends SettingsPreferenceFragment
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implements OnSharedPreferenceChangeListener,
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TimePickerDialog.OnTimeSetListener, DatePickerDialog.OnDateSetListener {
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private static final String HOURS_12 = "12";
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private static final String HOURS_24 = "24";
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// Used for showing the current date format, which looks like "12/31/2010", "2010/12/13", etc.
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// The date value is dummy (independent of actual date).
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private Calendar mDummyDate;
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private static final String KEY_DATE_FORMAT = "date_format";
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private static final String KEY_AUTO_TIME = "auto_time";
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private static final int DIALOG_DATEPICKER = 0;
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private static final int DIALOG_TIMEPICKER = 1;
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private CheckBoxPreference mAutoPref;
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private Preference mTimePref;
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private Preference mTime24Pref;
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private Preference mTimeZone;
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private Preference mDatePref;
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private ListPreference mDateFormat;
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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addPreferencesFromResource(R.xml.date_time_prefs);
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initUI();
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}
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private void initUI() {
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boolean autoEnabled = getAutoState();
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mDummyDate = Calendar.getInstance();
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mDummyDate.set(mDummyDate.get(Calendar.YEAR), 11, 31, 13, 0, 0);
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mAutoPref = (CheckBoxPreference) findPreference(KEY_AUTO_TIME);
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mAutoPref.setChecked(autoEnabled);
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mTimePref = findPreference("time");
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mTime24Pref = findPreference("24 hour");
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mTimeZone = findPreference("timezone");
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mDatePref = findPreference("date");
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mDateFormat = (ListPreference) findPreference(KEY_DATE_FORMAT);
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String [] dateFormats = getResources().getStringArray(R.array.date_format_values);
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String [] formattedDates = new String[dateFormats.length];
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String currentFormat = getDateFormat();
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// Initialize if DATE_FORMAT is not set in the system settings
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// This can happen after a factory reset (or data wipe)
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if (currentFormat == null) {
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currentFormat = "";
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}
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for (int i = 0; i < formattedDates.length; i++) {
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String formatted =
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DateFormat.getDateFormatForSetting(getActivity(), dateFormats[i])
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.format(mDummyDate.getTime());
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if (dateFormats[i].length() == 0) {
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formattedDates[i] = getResources().
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getString(R.string.normal_date_format, formatted);
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} else {
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formattedDates[i] = formatted;
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}
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}
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mDateFormat.setEntries(formattedDates);
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mDateFormat.setEntryValues(R.array.date_format_values);
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mDateFormat.setValue(currentFormat);
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mTimePref.setEnabled(!autoEnabled);
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mDatePref.setEnabled(!autoEnabled);
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mTimeZone.setEnabled(!autoEnabled);
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}
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@Override
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public void onResume() {
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super.onResume();
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getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
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((CheckBoxPreference)mTime24Pref).setChecked(is24Hour());
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// Register for time ticks and other reasons for time change
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IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_TIME_TICK);
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filter.addAction(Intent.ACTION_TIME_CHANGED);
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filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
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getActivity().registerReceiver(mIntentReceiver, filter, null, null);
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updateTimeAndDateDisplay(getActivity());
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}
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@Override
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public void onPause() {
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super.onPause();
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getActivity().unregisterReceiver(mIntentReceiver);
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getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
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}
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private void updateTimeAndDateDisplay(Context context) {
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java.text.DateFormat shortDateFormat = DateFormat.getDateFormat(context);
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final Calendar now = Calendar.getInstance();
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Date dummyDate = mDummyDate.getTime();
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mTimePref.setSummary(DateFormat.getTimeFormat(getActivity()).format(now.getTime()));
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mTimeZone.setSummary(getTimeZoneText(now.getTimeZone()));
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mDatePref.setSummary(shortDateFormat.format(now.getTime()));
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mDateFormat.setSummary(shortDateFormat.format(dummyDate));
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}
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@Override
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public void onDateSet(DatePicker view, int year, int month, int day) {
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setDate(year, month, day);
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final Activity activity = getActivity();
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if (activity != null) {
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updateTimeAndDateDisplay(activity);
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}
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}
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@Override
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public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
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setTime(hourOfDay, minute);
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final Activity activity = getActivity();
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if (activity != null) {
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updateTimeAndDateDisplay(activity);
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}
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// We don't need to call timeUpdated() here because the TIME_CHANGED
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// broadcast is sent by the AlarmManager as a side effect of setting the
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// SystemClock time.
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}
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@Override
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public void onSharedPreferenceChanged(SharedPreferences preferences, String key) {
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if (key.equals(KEY_DATE_FORMAT)) {
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String format = preferences.getString(key,
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getResources().getString(R.string.default_date_format));
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Settings.System.putString(getContentResolver(),
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Settings.System.DATE_FORMAT, format);
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updateTimeAndDateDisplay(getActivity());
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} else if (key.equals(KEY_AUTO_TIME)) {
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boolean autoEnabled = preferences.getBoolean(key, true);
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Settings.System.putInt(getContentResolver(),
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Settings.System.AUTO_TIME,
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autoEnabled ? 1 : 0);
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mTimePref.setEnabled(!autoEnabled);
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mDatePref.setEnabled(!autoEnabled);
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mTimeZone.setEnabled(!autoEnabled);
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}
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}
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@Override
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public Dialog onCreateDialog(int id) {
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Dialog d;
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switch (id) {
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case DIALOG_DATEPICKER: {
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final Calendar calendar = Calendar.getInstance();
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d = new DatePickerDialog(
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getActivity(),
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this,
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calendar.get(Calendar.YEAR),
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calendar.get(Calendar.MONTH),
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calendar.get(Calendar.DAY_OF_MONTH));
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d.setTitle(getResources().getString(R.string.date_time_changeDate_text));
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break;
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}
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case DIALOG_TIMEPICKER: {
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final Calendar calendar = Calendar.getInstance();
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d = new TimePickerDialog(
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getActivity(),
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this,
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calendar.get(Calendar.HOUR_OF_DAY),
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calendar.get(Calendar.MINUTE),
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DateFormat.is24HourFormat(getActivity()));
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d.setTitle(getResources().getString(R.string.date_time_changeTime_text));
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break;
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}
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default:
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d = null;
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break;
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}
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return d;
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}
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/*
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@Override
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public void onPrepareDialog(int id, Dialog d) {
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switch (id) {
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case DIALOG_DATEPICKER: {
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DatePickerDialog datePicker = (DatePickerDialog)d;
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final Calendar calendar = Calendar.getInstance();
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datePicker.updateDate(
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calendar.get(Calendar.YEAR),
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calendar.get(Calendar.MONTH),
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calendar.get(Calendar.DAY_OF_MONTH));
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break;
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}
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case DIALOG_TIMEPICKER: {
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TimePickerDialog timePicker = (TimePickerDialog)d;
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final Calendar calendar = Calendar.getInstance();
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timePicker.updateTime(
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calendar.get(Calendar.HOUR_OF_DAY),
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calendar.get(Calendar.MINUTE));
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break;
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}
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default:
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break;
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}
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}
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*/
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
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if (preference == mDatePref) {
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showDialog(DIALOG_DATEPICKER);
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} else if (preference == mTimePref) {
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// The 24-hour mode may have changed, so recreate the dialog
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removeDialog(DIALOG_TIMEPICKER);
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showDialog(DIALOG_TIMEPICKER);
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} else if (preference == mTime24Pref) {
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set24Hour(((CheckBoxPreference)mTime24Pref).isChecked());
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updateTimeAndDateDisplay(getActivity());
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timeUpdated();
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}
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return super.onPreferenceTreeClick(preferenceScreen, preference);
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}
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@Override
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public void onActivityResult(int requestCode, int resultCode,
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Intent data) {
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updateTimeAndDateDisplay(getActivity());
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}
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private void timeUpdated() {
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Intent timeChanged = new Intent(Intent.ACTION_TIME_CHANGED);
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getActivity().sendBroadcast(timeChanged);
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}
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/* Get & Set values from the system settings */
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private boolean is24Hour() {
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return DateFormat.is24HourFormat(getActivity());
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}
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private void set24Hour(boolean is24Hour) {
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Settings.System.putString(getContentResolver(),
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Settings.System.TIME_12_24,
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is24Hour? HOURS_24 : HOURS_12);
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}
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private String getDateFormat() {
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return Settings.System.getString(getContentResolver(),
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Settings.System.DATE_FORMAT);
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}
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private boolean getAutoState() {
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try {
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return Settings.System.getInt(getContentResolver(),
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Settings.System.AUTO_TIME) > 0;
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} catch (SettingNotFoundException snfe) {
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return true;
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}
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}
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/* Helper routines to format timezone */
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/* package */ static void setDate(int year, int month, int day) {
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Calendar c = Calendar.getInstance();
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c.set(Calendar.YEAR, year);
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c.set(Calendar.MONTH, month);
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c.set(Calendar.DAY_OF_MONTH, day);
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long when = c.getTimeInMillis();
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if (when / 1000 < Integer.MAX_VALUE) {
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SystemClock.setCurrentTimeMillis(when);
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}
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}
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/* package */ static void setTime(int hourOfDay, int minute) {
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Calendar c = Calendar.getInstance();
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c.set(Calendar.HOUR_OF_DAY, hourOfDay);
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c.set(Calendar.MINUTE, minute);
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long when = c.getTimeInMillis();
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if (when / 1000 < Integer.MAX_VALUE) {
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SystemClock.setCurrentTimeMillis(when);
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}
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}
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/* package */ static String getTimeZoneText(TimeZone tz) {
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boolean daylight = tz.inDaylightTime(new Date());
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StringBuilder sb = new StringBuilder();
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sb.append(formatOffset(tz.getRawOffset() +
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(daylight ? tz.getDSTSavings() : 0))).
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append(", ").
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append(tz.getDisplayName(daylight, TimeZone.LONG));
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return sb.toString();
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}
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private static char[] formatOffset(int off) {
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off = off / 1000 / 60;
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char[] buf = new char[9];
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buf[0] = 'G';
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buf[1] = 'M';
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buf[2] = 'T';
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if (off < 0) {
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buf[3] = '-';
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off = -off;
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} else {
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buf[3] = '+';
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}
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int hours = off / 60;
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int minutes = off % 60;
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buf[4] = (char) ('0' + hours / 10);
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buf[5] = (char) ('0' + hours % 10);
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buf[6] = ':';
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buf[7] = (char) ('0' + minutes / 10);
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buf[8] = (char) ('0' + minutes % 10);
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return buf;
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}
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private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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final Activity activity = getActivity();
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if (activity != null) {
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updateTimeAndDateDisplay(activity);
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}
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}
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};
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}
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