1 /* 2 * Copyright (C) 2016 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.settings.datetime; 18 19 import android.app.Activity; 20 import android.app.AlarmManager; 21 import android.app.DatePickerDialog; 22 import android.content.Context; 23 import android.support.annotation.VisibleForTesting; 24 import android.support.v7.preference.Preference; 25 import android.text.TextUtils; 26 import android.text.format.DateFormat; 27 import android.widget.DatePicker; 28 29 import com.android.settings.core.PreferenceControllerMixin; 30 import com.android.settingslib.RestrictedPreference; 31 import com.android.settingslib.core.AbstractPreferenceController; 32 33 import java.util.Calendar; 34 35 public class DatePreferenceController extends AbstractPreferenceController 36 implements PreferenceControllerMixin, DatePickerDialog.OnDateSetListener { 37 38 public interface DatePreferenceHost extends UpdateTimeAndDateCallback { showDatePicker()39 void showDatePicker(); 40 } 41 42 public static final int DIALOG_DATEPICKER = 0; 43 44 private static final String KEY_DATE = "date"; 45 46 private final DatePreferenceHost mHost; 47 private final AutoTimePreferenceController mAutoTimePreferenceController; 48 DatePreferenceController(Context context, DatePreferenceHost host, AutoTimePreferenceController autoTimePreferenceController)49 public DatePreferenceController(Context context, DatePreferenceHost host, 50 AutoTimePreferenceController autoTimePreferenceController) { 51 super(context); 52 mHost = host; 53 mAutoTimePreferenceController = autoTimePreferenceController; 54 } 55 56 @Override isAvailable()57 public boolean isAvailable() { 58 return true; 59 } 60 61 @Override updateState(Preference preference)62 public void updateState(Preference preference) { 63 if (!(preference instanceof RestrictedPreference)) { 64 return; 65 } 66 final Calendar now = Calendar.getInstance(); 67 preference.setSummary(DateFormat.getLongDateFormat(mContext).format(now.getTime())); 68 if (!((RestrictedPreference) preference).isDisabledByAdmin()) { 69 preference.setEnabled(!mAutoTimePreferenceController.isEnabled()); 70 } 71 } 72 73 @Override handlePreferenceTreeClick(Preference preference)74 public boolean handlePreferenceTreeClick(Preference preference) { 75 if (!TextUtils.equals(preference.getKey(), KEY_DATE)) { 76 return false; 77 } 78 mHost.showDatePicker(); 79 return true; 80 } 81 82 @Override getPreferenceKey()83 public String getPreferenceKey() { 84 return KEY_DATE; 85 } 86 87 @Override onDateSet(DatePicker view, int year, int month, int day)88 public void onDateSet(DatePicker view, int year, int month, int day) { 89 setDate(year, month, day); 90 mHost.updateTimeAndDateDisplay(mContext); 91 } 92 buildDatePicker(Activity activity)93 public DatePickerDialog buildDatePicker(Activity activity) { 94 final Calendar calendar = Calendar.getInstance(); 95 final DatePickerDialog d = new DatePickerDialog( 96 activity, 97 this, 98 calendar.get(Calendar.YEAR), 99 calendar.get(Calendar.MONTH), 100 calendar.get(Calendar.DAY_OF_MONTH)); 101 // The system clock can't represent dates outside this range. 102 calendar.clear(); 103 calendar.set(2007, Calendar.JANUARY, 1); 104 d.getDatePicker().setMinDate(calendar.getTimeInMillis()); 105 calendar.clear(); 106 calendar.set(2037, Calendar.DECEMBER, 31); 107 d.getDatePicker().setMaxDate(calendar.getTimeInMillis()); 108 return d; 109 } 110 111 @VisibleForTesting setDate(int year, int month, int day)112 void setDate(int year, int month, int day) { 113 Calendar c = Calendar.getInstance(); 114 115 c.set(Calendar.YEAR, year); 116 c.set(Calendar.MONTH, month); 117 c.set(Calendar.DAY_OF_MONTH, day); 118 long when = Math.max(c.getTimeInMillis(), DatePreferenceHost.MIN_DATE); 119 120 if (when / 1000 < Integer.MAX_VALUE) { 121 ((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when); 122 } 123 } 124 } 125