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      1 /*
      2  * Copyright (C) 2012 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.deskclock;
     18 
     19 import android.app.Fragment;
     20 import android.app.FragmentManager;
     21 import android.app.FragmentTransaction;
     22 import android.content.Context;
     23 import android.text.format.DateFormat;
     24 import android.widget.Toast;
     25 
     26 import android.app.TimePickerDialog;
     27 import com.android.deskclock.provider.Alarm;
     28 import com.android.deskclock.provider.AlarmInstance;
     29 
     30 import java.util.Calendar;
     31 import java.util.Locale;
     32 
     33 /**
     34  * Static utility methods for Alarms.
     35  */
     36 public class AlarmUtils {
     37     public static final String FRAG_TAG_TIME_PICKER = "time_dialog";
     38 
     39     public static String getFormattedTime(Context context, Calendar time) {
     40         String skeleton = DateFormat.is24HourFormat(context) ? "EHm" : "Ehma";
     41         String pattern = DateFormat.getBestDateTimePattern(Locale.getDefault(), skeleton);
     42         return (String) DateFormat.format(pattern, time);
     43     }
     44 
     45     public static String getAlarmText(Context context, AlarmInstance instance) {
     46         String alarmTimeStr = getFormattedTime(context, instance.getAlarmTime());
     47         return !instance.mLabel.isEmpty() ? alarmTimeStr + " - " + instance.mLabel
     48                 : alarmTimeStr;
     49     }
     50 
     51     /**
     52      * Show the time picker dialog. This is called from AlarmClockFragment to set alarm.
     53      * @param fragment The calling fragment (which is also a onTimeSetListener),
     54      *                 we use it as the target fragment of the TimePickerFragment, so later the
     55      *                 latter can retrieve it and set it as its onTimeSetListener when the fragment
     56      *                 is recreated.
     57      * @param alarm The clicked alarm, it can be null if user was clicking the fab instead.
     58      */
     59     public static void showTimeEditDialog(Fragment fragment, final Alarm alarm) {
     60         final FragmentManager manager = fragment.getFragmentManager();
     61         final FragmentTransaction ft = manager.beginTransaction();
     62         final Fragment prev = manager.findFragmentByTag(FRAG_TAG_TIME_PICKER);
     63         if (prev != null) {
     64             ft.remove(prev);
     65         }
     66         ft.commit();
     67         final TimePickerFragment timePickerFragment = new TimePickerFragment();
     68         timePickerFragment.setTargetFragment(fragment, 0);
     69         timePickerFragment.setOnTimeSetListener((TimePickerDialog.OnTimeSetListener) fragment);
     70         timePickerFragment.setAlarm(alarm);
     71         timePickerFragment.show(manager, FRAG_TAG_TIME_PICKER);
     72     }
     73 
     74     /**
     75      * format "Alarm set for 2 days 7 hours and 53 minutes from
     76      * now"
     77      */
     78     private static String formatToast(Context context, long timeInMillis) {
     79         long delta = timeInMillis - System.currentTimeMillis();
     80         long hours = delta / (1000 * 60 * 60);
     81         long minutes = delta / (1000 * 60) % 60;
     82         long days = hours / 24;
     83         hours = hours % 24;
     84 
     85         String daySeq = (days == 0) ? "" :
     86                 (days == 1) ? context.getString(R.string.day) :
     87                         context.getString(R.string.days, Long.toString(days));
     88 
     89         String minSeq = (minutes == 0) ? "" :
     90                 (minutes == 1) ? context.getString(R.string.minute) :
     91                         context.getString(R.string.minutes, Long.toString(minutes));
     92 
     93         String hourSeq = (hours == 0) ? "" :
     94                 (hours == 1) ? context.getString(R.string.hour) :
     95                         context.getString(R.string.hours, Long.toString(hours));
     96 
     97         boolean dispDays = days > 0;
     98         boolean dispHour = hours > 0;
     99         boolean dispMinute = minutes > 0;
    100 
    101         int index = (dispDays ? 1 : 0) |
    102                 (dispHour ? 2 : 0) |
    103                 (dispMinute ? 4 : 0);
    104 
    105         String[] formats = context.getResources().getStringArray(R.array.alarm_set);
    106         return String.format(formats[index], daySeq, hourSeq, minSeq);
    107     }
    108 
    109     public static void popAlarmSetToast(Context context, long timeInMillis) {
    110         String toastText = formatToast(context, timeInMillis);
    111         Toast toast = Toast.makeText(context, toastText, Toast.LENGTH_LONG);
    112         ToastMaster.setToast(toast);
    113         toast.show();
    114     }
    115 }
    116