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