Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 android.widget; |
| 18 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 19 | import com.android.internal.widget.ViewPager; |
| 20 | import com.android.internal.R; |
| 21 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 22 | import android.content.Context; |
| 23 | import android.content.res.ColorStateList; |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 24 | import android.content.res.TypedArray; |
| 25 | import android.util.AttributeSet; |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 26 | import android.util.MathUtils; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 27 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 28 | import java.util.Calendar; |
| 29 | import java.util.Locale; |
| 30 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 31 | import libcore.icu.LocaleData; |
| 32 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 33 | /** |
| 34 | * This displays a list of months in a calendar format with selectable days. |
| 35 | */ |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 36 | class DayPickerView extends ViewPager { |
| 37 | private static final int DEFAULT_START_YEAR = 1900; |
| 38 | private static final int DEFAULT_END_YEAR = 2100; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 39 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 40 | private final Calendar mSelectedDay = Calendar.getInstance(); |
| 41 | private final Calendar mMinDate = Calendar.getInstance(); |
| 42 | private final Calendar mMaxDate = Calendar.getInstance(); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 43 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 44 | private final DayPickerAdapter mAdapter; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 45 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 46 | /** Temporary calendar used for date calculations. */ |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 47 | private Calendar mTempCalendar; |
| 48 | |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 49 | private OnDaySelectedListener mOnDaySelectedListener; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 50 | |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 51 | public DayPickerView(Context context) { |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 52 | this(context, null); |
| 53 | } |
| 54 | |
| 55 | public DayPickerView(Context context, AttributeSet attrs) { |
| 56 | this(context, attrs, R.attr.calendarViewStyle); |
| 57 | } |
| 58 | |
| 59 | public DayPickerView(Context context, AttributeSet attrs, int defStyleAttr) { |
| 60 | this(context, attrs, defStyleAttr, 0); |
| 61 | } |
| 62 | |
| 63 | public DayPickerView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| 64 | super(context, attrs, defStyleAttr, defStyleRes); |
| 65 | |
| 66 | final TypedArray a = context.obtainStyledAttributes(attrs, |
| 67 | R.styleable.CalendarView, defStyleAttr, defStyleRes); |
| 68 | |
| 69 | final int firstDayOfWeek = a.getInt(R.styleable.CalendarView_firstDayOfWeek, |
| 70 | LocaleData.get(Locale.getDefault()).firstDayOfWeek); |
| 71 | |
| 72 | final String minDate = a.getString(R.styleable.CalendarView_minDate); |
| 73 | final String maxDate = a.getString(R.styleable.CalendarView_maxDate); |
| 74 | |
| 75 | final int monthTextAppearanceResId = a.getResourceId( |
| 76 | R.styleable.CalendarView_monthTextAppearance, |
| 77 | R.style.TextAppearance_Material_Widget_Calendar_Month); |
| 78 | final int dayOfWeekTextAppearanceResId = a.getResourceId( |
| 79 | R.styleable.CalendarView_weekDayTextAppearance, |
| 80 | R.style.TextAppearance_Material_Widget_Calendar_DayOfWeek); |
| 81 | final int dayTextAppearanceResId = a.getResourceId( |
| 82 | R.styleable.CalendarView_dateTextAppearance, |
| 83 | R.style.TextAppearance_Material_Widget_Calendar_Day); |
| 84 | |
| 85 | final ColorStateList daySelectorColor = a.getColorStateList( |
| 86 | R.styleable.CalendarView_daySelectorColor); |
| 87 | |
| 88 | a.recycle(); |
| 89 | |
| 90 | // Set up adapter. |
| 91 | mAdapter = new DayPickerAdapter(context); |
| 92 | mAdapter.setMonthTextAppearance(monthTextAppearanceResId); |
| 93 | mAdapter.setDayOfWeekTextAppearance(dayOfWeekTextAppearanceResId); |
| 94 | mAdapter.setDayTextAppearance(dayTextAppearanceResId); |
| 95 | mAdapter.setDaySelectorColor(daySelectorColor); |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 96 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 97 | setAdapter(mAdapter); |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 98 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 99 | // Set up min and max dates. |
| 100 | final Calendar tempDate = Calendar.getInstance(); |
| 101 | if (!CalendarView.parseDate(minDate, tempDate)) { |
| 102 | tempDate.set(DEFAULT_START_YEAR, Calendar.JANUARY, 1); |
| 103 | } |
| 104 | final long minDateMillis = tempDate.getTimeInMillis(); |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 105 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 106 | if (!CalendarView.parseDate(maxDate, tempDate)) { |
| 107 | tempDate.set(DEFAULT_END_YEAR, Calendar.DECEMBER, 31); |
| 108 | } |
| 109 | final long maxDateMillis = tempDate.getTimeInMillis(); |
| 110 | |
| 111 | if (maxDateMillis < minDateMillis) { |
| 112 | throw new IllegalArgumentException("maxDate must be >= minDate"); |
| 113 | } |
| 114 | |
| 115 | final long setDateMillis = MathUtils.constrain( |
| 116 | System.currentTimeMillis(), minDateMillis, maxDateMillis); |
| 117 | |
| 118 | setFirstDayOfWeek(firstDayOfWeek); |
| 119 | setMinDate(minDateMillis); |
| 120 | setMaxDate(maxDateMillis); |
| 121 | setDate(setDateMillis, false); |
| 122 | |
| 123 | // Proxy selection callbacks to our own listener. |
| 124 | mAdapter.setOnDaySelectedListener(new DayPickerAdapter.OnDaySelectedListener() { |
| 125 | @Override |
| 126 | public void onDaySelected(DayPickerAdapter adapter, Calendar day) { |
| 127 | if (mOnDaySelectedListener != null) { |
| 128 | mOnDaySelectedListener.onDaySelected(DayPickerView.this, day); |
| 129 | } |
| 130 | } |
| 131 | }); |
| 132 | } |
| 133 | |
| 134 | public void setDayOfWeekTextAppearance(int resId) { |
| 135 | mAdapter.setDayOfWeekTextAppearance(resId); |
| 136 | } |
| 137 | |
| 138 | public int getDayOfWeekTextAppearance() { |
| 139 | return mAdapter.getDayOfWeekTextAppearance(); |
| 140 | } |
| 141 | |
| 142 | public void setDayTextAppearance(int resId) { |
| 143 | mAdapter.setDayTextAppearance(resId); |
| 144 | } |
| 145 | |
| 146 | public int getDayTextAppearance() { |
| 147 | return mAdapter.getDayTextAppearance(); |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 148 | } |
| 149 | |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 150 | /** |
| 151 | * Sets the currently selected date to the specified timestamp. Jumps |
| 152 | * immediately to the new date. To animate to the new date, use |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 153 | * {@link #setDate(long, boolean)}. |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 154 | * |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 155 | * @param timeInMillis the target day in milliseconds |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 156 | */ |
| 157 | public void setDate(long timeInMillis) { |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 158 | setDate(timeInMillis, false); |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 159 | } |
| 160 | |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 161 | /** |
| 162 | * Sets the currently selected date to the specified timestamp. Jumps |
| 163 | * immediately to the new date, optionally animating the transition. |
| 164 | * |
| 165 | * @param timeInMillis the target day in milliseconds |
| 166 | * @param animate whether to smooth scroll to the new position |
| 167 | */ |
| 168 | public void setDate(long timeInMillis, boolean animate) { |
| 169 | setDate(timeInMillis, animate, true); |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Moves to the month containing the specified day, optionally setting the |
| 174 | * day as selected. |
| 175 | * |
| 176 | * @param timeInMillis the target day in milliseconds |
| 177 | * @param animate whether to smooth scroll to the new position |
| 178 | * @param setSelected whether to set the specified day as selected |
| 179 | */ |
| 180 | private void setDate(long timeInMillis, boolean animate, boolean setSelected) { |
| 181 | // Set the selected day |
| 182 | if (setSelected) { |
| 183 | mSelectedDay.setTimeInMillis(timeInMillis); |
| 184 | } |
| 185 | |
| 186 | final int position = getPositionFromDay(timeInMillis); |
| 187 | if (position != getCurrentItem()) { |
| 188 | setCurrentItem(position, animate); |
| 189 | } |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | public long getDate() { |
| 193 | return mSelectedDay.getTimeInMillis(); |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | public void setFirstDayOfWeek(int firstDayOfWeek) { |
| 197 | mAdapter.setFirstDayOfWeek(firstDayOfWeek); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 198 | } |
| 199 | |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 200 | public int getFirstDayOfWeek() { |
| 201 | return mAdapter.getFirstDayOfWeek(); |
| 202 | } |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 203 | |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 204 | public void setMinDate(long timeInMillis) { |
| 205 | mMinDate.setTimeInMillis(timeInMillis); |
| 206 | onRangeChanged(); |
| 207 | } |
| 208 | |
| 209 | public long getMinDate() { |
| 210 | return mMinDate.getTimeInMillis(); |
| 211 | } |
| 212 | |
| 213 | public void setMaxDate(long timeInMillis) { |
| 214 | mMaxDate.setTimeInMillis(timeInMillis); |
| 215 | onRangeChanged(); |
| 216 | } |
| 217 | |
| 218 | public long getMaxDate() { |
| 219 | return mMaxDate.getTimeInMillis(); |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Handles changes to date range. |
| 224 | */ |
| 225 | public void onRangeChanged() { |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 226 | mAdapter.setRange(mMinDate, mMaxDate); |
| 227 | |
Alan Viverette | 5ecbfeb | 2014-11-03 18:31:36 -0800 | [diff] [blame] | 228 | // Changing the min/max date changes the selection position since we |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 229 | // don't really have stable IDs. Jumps immediately to the new position. |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 230 | setDate(mSelectedDay.getTimeInMillis(), false, false); |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | /** |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 234 | * Sets the listener to call when the user selects a day. |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 235 | * |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 236 | * @param listener The listener to call. |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 237 | */ |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 238 | public void setOnDaySelectedListener(OnDaySelectedListener listener) { |
| 239 | mOnDaySelectedListener = listener; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 240 | } |
| 241 | |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 242 | private int getDiffMonths(Calendar start, Calendar end) { |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 243 | final int diffYears = end.get(Calendar.YEAR) - start.get(Calendar.YEAR); |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 244 | return end.get(Calendar.MONTH) - start.get(Calendar.MONTH) + 12 * diffYears; |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 245 | } |
| 246 | |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 247 | private int getPositionFromDay(long timeInMillis) { |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 248 | final int diffMonthMax = getDiffMonths(mMinDate, mMaxDate); |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 249 | final int diffMonth = getDiffMonths(mMinDate, getTempCalendarForTime(timeInMillis)); |
Alan Viverette | 50eb025 | 2014-10-24 14:34:26 -0700 | [diff] [blame] | 250 | return MathUtils.constrain(diffMonth, 0, diffMonthMax); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 253 | private Calendar getTempCalendarForTime(long timeInMillis) { |
| 254 | if (mTempCalendar == null) { |
| 255 | mTempCalendar = Calendar.getInstance(); |
| 256 | } |
| 257 | mTempCalendar.setTimeInMillis(timeInMillis); |
| 258 | return mTempCalendar; |
| 259 | } |
| 260 | |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 261 | /** |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 262 | * Gets the position of the view that is most prominently displayed within the list view. |
| 263 | */ |
| 264 | public int getMostVisiblePosition() { |
Alan Viverette | 0ef59ac | 2015-03-23 13:13:25 -0700 | [diff] [blame^] | 265 | return getCurrentItem(); |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 266 | } |
Alan Viverette | e763c9b | 2014-11-06 15:22:31 -0800 | [diff] [blame] | 267 | |
| 268 | public interface OnDaySelectedListener { |
| 269 | public void onDaySelected(DayPickerView view, Calendar day); |
| 270 | } |
Fabrice Di Meglio | bd9152f | 2013-10-01 11:21:31 -0700 | [diff] [blame] | 271 | } |