Utils.java revision ad36a3c3cde7a2ec6d3a35d2529d46f03bd8d59d
1/* 2 * Copyright (C) 2006 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 17package com.android.calendar; 18 19import static android.provider.Calendar.EVENT_BEGIN_TIME; 20 21import android.content.Context; 22import android.content.Intent; 23import android.content.SharedPreferences; 24import android.content.res.Resources; 25import android.preference.PreferenceManager; 26import android.text.format.Time; 27import android.view.animation.AlphaAnimation; 28import android.widget.ViewFlipper; 29 30import java.util.Calendar; 31 32public class Utils { 33 public static void startActivity(Context context, String className, long time) { 34 Intent intent = new Intent(Intent.ACTION_VIEW); 35 36 intent.setClassName(context, className); 37 intent.putExtra(EVENT_BEGIN_TIME, time); 38 intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_SINGLE_TOP); 39 40 context.startActivity(intent); 41 } 42 43 static void setDefaultView(Context context, int viewId) { 44 String activityString = CalendarApplication.ACTIVITY_NAMES[viewId]; 45 46 SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); 47 SharedPreferences.Editor editor = prefs.edit(); 48 if (viewId == CalendarApplication.AGENDA_VIEW_ID || 49 viewId == CalendarApplication.DAY_VIEW_ID) { 50 // Record the (new) detail start view only for Agenda and Day 51 editor.putString(CalendarPreferenceActivity.KEY_DETAILED_VIEW, activityString); 52 } 53 54 // Record the (new) start view 55 editor.putString(CalendarPreferenceActivity.KEY_START_VIEW, activityString); 56 editor.commit(); 57 } 58 59 public static final Time timeFromIntent(Intent intent) { 60 Time time = new Time(); 61 time.set(timeFromIntentInMillis(intent)); 62 return time; 63 } 64 65 /** 66 * If the given intent specifies a time (in milliseconds since the epoch), 67 * then that time is returned. Otherwise, the current time is returned. 68 */ 69 public static final long timeFromIntentInMillis(Intent intent) { 70 // If the time was specified, then use that. Otherwise, use the current time. 71 long millis = intent.getLongExtra(EVENT_BEGIN_TIME, -1); 72 if (millis == -1) { 73 millis = System.currentTimeMillis(); 74 } 75 return millis; 76 } 77 78 public static final void applyAlphaAnimation(ViewFlipper v) { 79 AlphaAnimation in = new AlphaAnimation(0.0f, 1.0f); 80 81 in.setStartOffset(0); 82 in.setDuration(500); 83 84 AlphaAnimation out = new AlphaAnimation(1.0f, 0.0f); 85 86 out.setStartOffset(0); 87 out.setDuration(500); 88 89 v.setInAnimation(in); 90 v.setOutAnimation(out); 91 } 92 93 /** 94 * Formats the given Time object so that it gives the month and year 95 * (for example, "September 2007"). 96 * 97 * @param time the time to format 98 * @return the string containing the weekday and the date 99 */ 100 public static String formatMonthYear(Context context, Time time) { 101 return time.format(context.getResources().getString(R.string.month_year)); 102 } 103 104 // TODO: replace this with the correct i18n way to do this 105 public static final String englishNthDay[] = { 106 "", "1st", "2nd", "3rd", "4th", "5th", "6th", "7th", "8th", "9th", 107 "10th", "11th", "12th", "13th", "14th", "15th", "16th", "17th", "18th", "19th", 108 "20th", "21st", "22nd", "23rd", "24th", "25th", "26th", "27th", "28th", "29th", 109 "30th", "31st" 110 }; 111 112 public static String formatNth(int nth) { 113 return "the " + englishNthDay[nth]; 114 } 115 116 /** 117 * Sets the time to the beginning of the day (midnight) by clearing the 118 * hour, minute, and second fields. 119 */ 120 static void setTimeToStartOfDay(Time time) { 121 time.second = 0; 122 time.minute = 0; 123 time.hour = 0; 124 } 125 126 /** 127 * Get first day of week as android.text.format.Time constant. 128 * @return the first day of week in android.text.format.Time 129 */ 130 public static int getFirstDayOfWeek() { 131 int startDay = Calendar.getInstance().getFirstDayOfWeek(); 132 if (startDay == Calendar.SATURDAY) { 133 return Time.SATURDAY; 134 } else if (startDay == Calendar.MONDAY) { 135 return Time.MONDAY; 136 } else { 137 return Time.SUNDAY; 138 } 139 } 140 141 /** 142 * Determine whether the column position is Saturday or not. 143 * @param column the column position 144 * @param firstDayOfWeek the first day of week in android.text.format.Time 145 * @return true if the column is Saturday position 146 */ 147 public static boolean isSaturday(int column, int firstDayOfWeek) { 148 return (firstDayOfWeek == Time.SUNDAY && column == 6) 149 || (firstDayOfWeek == Time.MONDAY && column == 5) 150 || (firstDayOfWeek == Time.SATURDAY && column == 0); 151 } 152 153 /** 154 * Determine whether the column position is Sunday or not. 155 * @param column the column position 156 * @param firstDayOfWeek the first day of week in android.text.format.Time 157 * @return true if the column is Sunday position 158 */ 159 public static boolean isSunday(int column, int firstDayOfWeek) { 160 return (firstDayOfWeek == Time.SUNDAY && column == 0) 161 || (firstDayOfWeek == Time.MONDAY && column == 6) 162 || (firstDayOfWeek == Time.SATURDAY && column == 1); 163 } 164} 165