1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.car.settings.datetime; 18 19 import android.car.drivingstate.CarUxRestrictions; 20 import android.content.BroadcastReceiver; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.content.IntentFilter; 24 import android.provider.Settings; 25 import android.text.format.DateFormat; 26 27 import androidx.preference.SwitchPreference; 28 29 import com.android.car.settings.common.FragmentController; 30 import com.android.car.settings.common.PreferenceController; 31 32 import java.util.Calendar; 33 34 /** 35 * Business logic for toggle which chooses between 12 hour or 24 hour formats. 36 */ 37 public class TimeFormatTogglePreferenceController extends PreferenceController<SwitchPreference> { 38 public static final String HOURS_12 = "12"; 39 public static final String HOURS_24 = "24"; 40 41 private static final int DEMO_MONTH = 11; 42 private static final int DEMO_DAY_OF_MONTH = 31; 43 private static final int DEMO_HOUR_OF_DAY = 13; 44 private static final int DEMO_MINUTE = 0; 45 private static final int DEMO_SECOND = 0; 46 private final Calendar mTimeFormatDemoDate = Calendar.getInstance(); 47 private final BroadcastReceiver mTimeChangeReceiver = new BroadcastReceiver() { 48 @Override 49 public void onReceive(Context context, Intent intent) { 50 refreshUi(); 51 } 52 }; 53 TimeFormatTogglePreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)54 public TimeFormatTogglePreferenceController(Context context, String preferenceKey, 55 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 56 super(context, preferenceKey, fragmentController, uxRestrictions); 57 } 58 59 @Override getPreferenceType()60 protected Class<SwitchPreference> getPreferenceType() { 61 return SwitchPreference.class; 62 } 63 64 @Override onCreateInternal()65 protected void onCreateInternal() { 66 super.onCreateInternal(); 67 setClickableWhileDisabled(getPreference(), /* clickable= */ true, p -> 68 DatetimeUtils.runClickableWhileDisabled(getContext(), getFragmentController())); 69 } 70 71 /** Starts the broadcast receiver which listens for time changes */ 72 @Override onStartInternal()73 protected void onStartInternal() { 74 // Listens to ACTION_TIME_CHANGED because the description needs to be changed based on 75 // the ACTION_TIME_CHANGED intent that this toggle sends. 76 getContext().registerReceiver(mTimeChangeReceiver, 77 new IntentFilter(Intent.ACTION_TIME_CHANGED)); 78 } 79 80 /** Stops the broadcast receiver which listens for time changes */ 81 @Override onStopInternal()82 protected void onStopInternal() { 83 getContext().unregisterReceiver(mTimeChangeReceiver); 84 } 85 86 @Override updateState(SwitchPreference preference)87 protected void updateState(SwitchPreference preference) { 88 Calendar now = Calendar.getInstance(); 89 mTimeFormatDemoDate.setTimeZone(now.getTimeZone()); 90 // We use December 31st because it's unambiguous when demonstrating the date format. 91 // We use 13:00 so we can demonstrate the 12/24 hour options. 92 mTimeFormatDemoDate.set(now.get(Calendar.YEAR), DEMO_MONTH, DEMO_DAY_OF_MONTH, 93 DEMO_HOUR_OF_DAY, DEMO_MINUTE, DEMO_SECOND); 94 preference.setSummary( 95 DateFormat.getTimeFormat(getContext()).format(mTimeFormatDemoDate.getTime())); 96 preference.setChecked(is24Hour()); 97 } 98 99 @Override handlePreferenceChanged(SwitchPreference preference, Object newValue)100 protected boolean handlePreferenceChanged(SwitchPreference preference, Object newValue) { 101 boolean isUse24HourFormatEnabled = (boolean) newValue; 102 Settings.System.putString(getContext().getContentResolver(), 103 Settings.System.TIME_12_24, 104 isUse24HourFormatEnabled ? HOURS_24 : HOURS_12); 105 Intent timeChanged = new Intent(Intent.ACTION_TIME_CHANGED); 106 int timeFormatPreference = 107 isUse24HourFormatEnabled ? Intent.EXTRA_TIME_PREF_VALUE_USE_24_HOUR 108 : Intent.EXTRA_TIME_PREF_VALUE_USE_12_HOUR; 109 timeChanged.putExtra(Intent.EXTRA_TIME_PREF_24_HOUR_FORMAT, 110 timeFormatPreference); 111 getContext().sendBroadcast(timeChanged); 112 return true; 113 } 114 115 @Override getDefaultAvailabilityStatus()116 public int getDefaultAvailabilityStatus() { 117 return DatetimeUtils.getAvailabilityStatus(getContext()); 118 } 119 is24Hour()120 private boolean is24Hour() { 121 return DateFormat.is24HourFormat(getContext()); 122 } 123 } 124