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/*
* Copyright (C) 2016 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.settings.datetime;
import android.content.Context;
import android.content.Intent;
import android.provider.Settings;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.TwoStatePreference;
import android.text.TextUtils;
import android.text.format.DateFormat;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.core.AbstractPreferenceController;
import java.util.Calendar;
import java.util.Date;
public class TimeFormatPreferenceController extends AbstractPreferenceController
implements PreferenceControllerMixin {
static final String HOURS_12 = "12";
static final String HOURS_24 = "24";
private static final String KEY_TIME_FORMAT = "24 hour";
// Used for showing the current date format, which looks like "12/31/2010", "2010/12/13", etc.
// The date value is dummy (independent of actual date).
private final Calendar mDummyDate;
private final boolean mIsFromSUW;
private final UpdateTimeAndDateCallback mUpdateTimeAndDateCallback;
public TimeFormatPreferenceController(Context context, UpdateTimeAndDateCallback callback,
boolean isFromSUW) {
super(context);
mIsFromSUW = isFromSUW;
mDummyDate = Calendar.getInstance();
mUpdateTimeAndDateCallback = callback;
}
@Override
public boolean isAvailable() {
return !mIsFromSUW;
}
@Override
public void updateState(Preference preference) {
if (!(preference instanceof TwoStatePreference)) {
return;
}
((TwoStatePreference) preference).setChecked(is24Hour());
final Calendar now = Calendar.getInstance();
mDummyDate.setTimeZone(now.getTimeZone());
// We use December 31st because it's unambiguous when demonstrating the date format.
// We use 13:00 so we can demonstrate the 12/24 hour options.
mDummyDate.set(now.get(Calendar.YEAR), 11, 31, 13, 0, 0);
final Date dummyDate = mDummyDate.getTime();
preference.setSummary(DateFormat.getTimeFormat(mContext).format(dummyDate));
}
@Override
public boolean handlePreferenceTreeClick(Preference preference) {
if (!(preference instanceof TwoStatePreference)
|| !TextUtils.equals(KEY_TIME_FORMAT, preference.getKey())) {
return false;
}
final boolean is24Hour = ((SwitchPreference) preference).isChecked();
set24Hour(is24Hour);
timeUpdated(is24Hour);
mUpdateTimeAndDateCallback.updateTimeAndDateDisplay(mContext);
return true;
}
@Override
public String getPreferenceKey() {
return KEY_TIME_FORMAT;
}
private boolean is24Hour() {
return DateFormat.is24HourFormat(mContext);
}
private void timeUpdated(boolean is24Hour) {
Intent timeChanged = new Intent(Intent.ACTION_TIME_CHANGED);
int timeFormatPreference =
is24Hour ? Intent.EXTRA_TIME_PREF_VALUE_USE_24_HOUR
: Intent.EXTRA_TIME_PREF_VALUE_USE_12_HOUR;
timeChanged.putExtra(Intent.EXTRA_TIME_PREF_24_HOUR_FORMAT, timeFormatPreference);
mContext.sendBroadcast(timeChanged);
}
private void set24Hour(boolean is24Hour) {
Settings.System.putString(mContext.getContentResolver(),
Settings.System.TIME_12_24,
is24Hour ? HOURS_24 : HOURS_12);
}
}
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