Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 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 android.widget; |
| 18 | |
| 19 | import android.content.BroadcastReceiver; |
| 20 | import android.content.ContentResolver; |
| 21 | import android.content.Context; |
| 22 | import android.content.Intent; |
| 23 | import android.content.IntentFilter; |
| 24 | import android.content.res.TypedArray; |
| 25 | import android.database.ContentObserver; |
| 26 | import android.net.Uri; |
| 27 | import android.os.Handler; |
| 28 | import android.os.SystemClock; |
| 29 | import android.provider.Settings; |
| 30 | import android.text.format.DateFormat; |
| 31 | import android.util.AttributeSet; |
Romain Guy | a9cfe67 | 2012-11-05 14:16:32 -0800 | [diff] [blame] | 32 | import android.view.RemotableViewMethod; |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 33 | |
| 34 | import com.android.internal.R; |
| 35 | |
| 36 | import java.util.Calendar; |
| 37 | import java.util.TimeZone; |
| 38 | |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 39 | import libcore.icu.LocaleData; |
| 40 | |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 41 | import static android.view.ViewDebug.ExportedProperty; |
| 42 | import static android.widget.RemoteViews.*; |
| 43 | |
| 44 | /** |
| 45 | * <p><code>TextClock</code> can display the current date and/or time as |
| 46 | * a formatted string.</p> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 47 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 48 | * <p>This view honors the 24-hour format system setting. As such, it is |
| 49 | * possible and recommended to provide two different formatting patterns: |
| 50 | * one to display the date/time in 24-hour mode and one to display the |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 51 | * date/time in 12-hour mode. Most callers will want to use the defaults, |
| 52 | * though, which will be appropriate for the user's locale.</p> |
| 53 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 54 | * <p>It is possible to determine whether the system is currently in |
| 55 | * 24-hour mode by calling {@link #is24HourModeEnabled()}.</p> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 56 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 57 | * <p>The rules used by this widget to decide how to format the date and |
| 58 | * time are the following:</p> |
| 59 | * <ul> |
| 60 | * <li>In 24-hour mode: |
| 61 | * <ul> |
| 62 | * <li>Use the value returned by {@link #getFormat24Hour()} when non-null</li> |
| 63 | * <li>Otherwise, use the value returned by {@link #getFormat12Hour()} when non-null</li> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 64 | * <li>Otherwise, use a default value appropriate for the user's locale, such as {@code h:mm a}</li> |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 65 | * </ul> |
| 66 | * </li> |
| 67 | * <li>In 12-hour mode: |
| 68 | * <ul> |
| 69 | * <li>Use the value returned by {@link #getFormat12Hour()} when non-null</li> |
| 70 | * <li>Otherwise, use the value returned by {@link #getFormat24Hour()} when non-null</li> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 71 | * <li>Otherwise, use a default value appropriate for the user's locale, such as {@code HH:mm}</li> |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 72 | * </ul> |
| 73 | * </li> |
| 74 | * </ul> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 75 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 76 | * <p>The {@link CharSequence} instances used as formatting patterns when calling either |
| 77 | * {@link #setFormat24Hour(CharSequence)} or {@link #setFormat12Hour(CharSequence)} can |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 78 | * contain styling information. To do so, use a {@link android.text.Spanned} object. |
| 79 | * Note that if you customize these strings, it is your responsibility to supply strings |
| 80 | * appropriate for formatting dates and/or times in the user's locale.</p> |
| 81 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 82 | * @attr ref android.R.styleable#TextClock_format12Hour |
| 83 | * @attr ref android.R.styleable#TextClock_format24Hour |
| 84 | * @attr ref android.R.styleable#TextClock_timeZone |
| 85 | */ |
| 86 | @RemoteView |
| 87 | public class TextClock extends TextView { |
| 88 | /** |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 89 | * The default formatting pattern in 12-hour mode. This pattern is used |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 90 | * if {@link #setFormat12Hour(CharSequence)} is called with a null pattern |
| 91 | * or if no pattern was specified when creating an instance of this class. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 92 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 93 | * This default pattern shows only the time, hours and minutes, and an am/pm |
| 94 | * indicator. |
| 95 | * |
| 96 | * @see #setFormat12Hour(CharSequence) |
| 97 | * @see #getFormat12Hour() |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 98 | * |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 99 | * @deprecated Let the system use locale-appropriate defaults instead. |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 100 | */ |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 101 | public static final CharSequence DEFAULT_FORMAT_12_HOUR = "h:mm a"; |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 102 | |
| 103 | /** |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 104 | * The default formatting pattern in 24-hour mode. This pattern is used |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 105 | * if {@link #setFormat24Hour(CharSequence)} is called with a null pattern |
| 106 | * or if no pattern was specified when creating an instance of this class. |
| 107 | * |
| 108 | * This default pattern shows only the time, hours and minutes. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 109 | * |
| 110 | * @see #setFormat24Hour(CharSequence) |
| 111 | * @see #getFormat24Hour() |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 112 | * |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 113 | * @deprecated Let the system use locale-appropriate defaults instead. |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 114 | */ |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 115 | public static final CharSequence DEFAULT_FORMAT_24_HOUR = "H:mm"; |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 116 | |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 117 | private CharSequence mFormat12; |
| 118 | private CharSequence mFormat24; |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 119 | |
| 120 | @ExportedProperty |
| 121 | private CharSequence mFormat; |
| 122 | @ExportedProperty |
| 123 | private boolean mHasSeconds; |
| 124 | |
| 125 | private boolean mAttached; |
| 126 | |
| 127 | private Calendar mTime; |
| 128 | private String mTimeZone; |
| 129 | |
| 130 | private final ContentObserver mFormatChangeObserver = new ContentObserver(new Handler()) { |
| 131 | @Override |
| 132 | public void onChange(boolean selfChange) { |
| 133 | chooseFormat(); |
| 134 | onTimeChanged(); |
| 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public void onChange(boolean selfChange, Uri uri) { |
| 139 | chooseFormat(); |
| 140 | onTimeChanged(); |
| 141 | } |
| 142 | }; |
| 143 | |
| 144 | private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() { |
| 145 | @Override |
| 146 | public void onReceive(Context context, Intent intent) { |
Romain Guy | a76f7db | 2012-11-06 17:35:23 -0800 | [diff] [blame] | 147 | if (mTimeZone == null && Intent.ACTION_TIMEZONE_CHANGED.equals(intent.getAction())) { |
| 148 | final String timeZone = intent.getStringExtra("time-zone"); |
| 149 | createTime(timeZone); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 150 | } |
Romain Guy | a76f7db | 2012-11-06 17:35:23 -0800 | [diff] [blame] | 151 | onTimeChanged(); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 152 | } |
| 153 | }; |
| 154 | |
| 155 | private final Runnable mTicker = new Runnable() { |
| 156 | public void run() { |
| 157 | onTimeChanged(); |
| 158 | |
| 159 | long now = SystemClock.uptimeMillis(); |
| 160 | long next = now + (1000 - now % 1000); |
| 161 | |
| 162 | getHandler().postAtTime(mTicker, next); |
| 163 | } |
| 164 | }; |
| 165 | |
| 166 | /** |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 167 | * Creates a new clock using the default patterns for the current locale. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 168 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 169 | * @param context The Context the view is running in, through which it can |
| 170 | * access the current theme, resources, etc. |
| 171 | */ |
| 172 | @SuppressWarnings("UnusedDeclaration") |
| 173 | public TextClock(Context context) { |
| 174 | super(context); |
| 175 | init(); |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Creates a new clock inflated from XML. This object's properties are |
| 180 | * intialized from the attributes specified in XML. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 181 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 182 | * This constructor uses a default style of 0, so the only attribute values |
| 183 | * applied are those in the Context's Theme and the given AttributeSet. |
| 184 | * |
| 185 | * @param context The Context the view is running in, through which it can |
| 186 | * access the current theme, resources, etc. |
| 187 | * @param attrs The attributes of the XML tag that is inflating the view |
| 188 | */ |
| 189 | @SuppressWarnings("UnusedDeclaration") |
| 190 | public TextClock(Context context, AttributeSet attrs) { |
| 191 | this(context, attrs, 0); |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Creates a new clock inflated from XML. This object's properties are |
| 196 | * intialized from the attributes specified in XML. |
| 197 | * |
| 198 | * @param context The Context the view is running in, through which it can |
| 199 | * access the current theme, resources, etc. |
| 200 | * @param attrs The attributes of the XML tag that is inflating the view |
| 201 | * @param defStyle The default style to apply to this view. If 0, no style |
| 202 | * will be applied (beyond what is included in the theme). This may |
| 203 | * either be an attribute resource, whose value will be retrieved |
| 204 | * from the current theme, or an explicit style resource |
| 205 | */ |
| 206 | public TextClock(Context context, AttributeSet attrs, int defStyle) { |
| 207 | super(context, attrs, defStyle); |
| 208 | |
| 209 | TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TextClock, defStyle, 0); |
| 210 | try { |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 211 | mFormat12 = a.getText(R.styleable.TextClock_format12Hour); |
| 212 | mFormat24 = a.getText(R.styleable.TextClock_format24Hour); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 213 | mTimeZone = a.getString(R.styleable.TextClock_timeZone); |
| 214 | } finally { |
| 215 | a.recycle(); |
| 216 | } |
| 217 | |
| 218 | init(); |
| 219 | } |
| 220 | |
| 221 | private void init() { |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 222 | if (mFormat12 == null || mFormat24 == null) { |
| 223 | LocaleData ld = LocaleData.get(getContext().getResources().getConfiguration().locale); |
| 224 | if (mFormat12 == null) { |
| 225 | mFormat12 = ld.timeFormat12; |
| 226 | } |
| 227 | if (mFormat24 == null) { |
| 228 | mFormat24 = ld.timeFormat24; |
| 229 | } |
| 230 | } |
| 231 | |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 232 | createTime(mTimeZone); |
| 233 | // Wait until onAttachedToWindow() to handle the ticker |
| 234 | chooseFormat(false); |
| 235 | } |
| 236 | |
| 237 | private void createTime(String timeZone) { |
| 238 | if (timeZone != null) { |
| 239 | mTime = Calendar.getInstance(TimeZone.getTimeZone(timeZone)); |
| 240 | } else { |
| 241 | mTime = Calendar.getInstance(); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /** |
| 246 | * Returns the formatting pattern used to display the date and/or time |
| 247 | * in 12-hour mode. The formatting pattern syntax is described in |
| 248 | * {@link DateFormat}. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 249 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 250 | * @return A {@link CharSequence} or null. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 251 | * |
| 252 | * @see #setFormat12Hour(CharSequence) |
| 253 | * @see #is24HourModeEnabled() |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 254 | */ |
| 255 | @ExportedProperty |
| 256 | public CharSequence getFormat12Hour() { |
| 257 | return mFormat12; |
| 258 | } |
| 259 | |
| 260 | /** |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 261 | * <p>Specifies the formatting pattern used to display the date and/or time |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 262 | * in 12-hour mode. The formatting pattern syntax is described in |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 263 | * {@link DateFormat}.</p> |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 264 | * |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 265 | * <p>If this pattern is set to null, {@link #getFormat24Hour()} will be used |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 266 | * even in 12-hour mode. If both 24-hour and 12-hour formatting patterns |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 267 | * are set to null, the default pattern for the current locale will be used |
| 268 | * instead.</p> |
| 269 | * |
| 270 | * <p><strong>Note:</strong> if styling is not needed, it is highly recommended |
| 271 | * you supply a format string generated by |
| 272 | * {@link DateFormat#getBestDateTimePattern(java.util.Locale, String)}. This method |
| 273 | * takes care of generating a format string adapted to the desired locale.</p> |
| 274 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 275 | * |
| 276 | * @param format A date/time formatting pattern as described in {@link DateFormat} |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 277 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 278 | * @see #getFormat12Hour() |
| 279 | * @see #is24HourModeEnabled() |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 280 | * @see DateFormat#getBestDateTimePattern(java.util.Locale, String) |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 281 | * @see DateFormat |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 282 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 283 | * @attr ref android.R.styleable#TextClock_format12Hour |
| 284 | */ |
Romain Guy | a9cfe67 | 2012-11-05 14:16:32 -0800 | [diff] [blame] | 285 | @RemotableViewMethod |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 286 | public void setFormat12Hour(CharSequence format) { |
| 287 | mFormat12 = format; |
| 288 | |
| 289 | chooseFormat(); |
| 290 | onTimeChanged(); |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * Returns the formatting pattern used to display the date and/or time |
| 295 | * in 24-hour mode. The formatting pattern syntax is described in |
| 296 | * {@link DateFormat}. |
| 297 | * |
| 298 | * @return A {@link CharSequence} or null. |
| 299 | * |
| 300 | * @see #setFormat24Hour(CharSequence) |
| 301 | * @see #is24HourModeEnabled() |
| 302 | */ |
| 303 | @ExportedProperty |
| 304 | public CharSequence getFormat24Hour() { |
| 305 | return mFormat24; |
| 306 | } |
| 307 | |
| 308 | /** |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 309 | * <p>Specifies the formatting pattern used to display the date and/or time |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 310 | * in 24-hour mode. The formatting pattern syntax is described in |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 311 | * {@link DateFormat}.</p> |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 312 | * |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 313 | * <p>If this pattern is set to null, {@link #getFormat24Hour()} will be used |
| 314 | * even in 12-hour mode. If both 24-hour and 12-hour formatting patterns |
| 315 | * are set to null, the default pattern for the current locale will be used |
| 316 | * instead.</p> |
| 317 | * |
| 318 | * <p><strong>Note:</strong> if styling is not needed, it is highly recommended |
| 319 | * you supply a format string generated by |
| 320 | * {@link DateFormat#getBestDateTimePattern(java.util.Locale, String)}. This method |
| 321 | * takes care of generating a format string adapted to the desired locale.</p> |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 322 | * |
| 323 | * @param format A date/time formatting pattern as described in {@link DateFormat} |
| 324 | * |
| 325 | * @see #getFormat24Hour() |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 326 | * @see #is24HourModeEnabled() |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 327 | * @see DateFormat#getBestDateTimePattern(java.util.Locale, String) |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 328 | * @see DateFormat |
| 329 | * |
| 330 | * @attr ref android.R.styleable#TextClock_format24Hour |
| 331 | */ |
Romain Guy | a9cfe67 | 2012-11-05 14:16:32 -0800 | [diff] [blame] | 332 | @RemotableViewMethod |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 333 | public void setFormat24Hour(CharSequence format) { |
| 334 | mFormat24 = format; |
| 335 | |
| 336 | chooseFormat(); |
| 337 | onTimeChanged(); |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Indicates whether the system is currently using the 24-hour mode. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 342 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 343 | * When the system is in 24-hour mode, this view will use the pattern |
| 344 | * returned by {@link #getFormat24Hour()}. In 12-hour mode, the pattern |
| 345 | * returned by {@link #getFormat12Hour()} is used instead. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 346 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 347 | * If either one of the formats is null, the other format is used. If |
Romain Guy | 09b1994 | 2013-04-30 11:19:39 -0700 | [diff] [blame] | 348 | * both formats are null, the default formats for the current locale are used. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 349 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 350 | * @return true if time should be displayed in 24-hour format, false if it |
| 351 | * should be displayed in 12-hour format. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 352 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 353 | * @see #setFormat12Hour(CharSequence) |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 354 | * @see #getFormat12Hour() |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 355 | * @see #setFormat24Hour(CharSequence) |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 356 | * @see #getFormat24Hour() |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 357 | */ |
| 358 | public boolean is24HourModeEnabled() { |
| 359 | return DateFormat.is24HourFormat(getContext()); |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * Indicates which time zone is currently used by this view. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 364 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 365 | * @return The ID of the current time zone or null if the default time zone, |
| 366 | * as set by the user, must be used |
| 367 | * |
| 368 | * @see TimeZone |
| 369 | * @see java.util.TimeZone#getAvailableIDs() |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 370 | * @see #setTimeZone(String) |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 371 | */ |
| 372 | public String getTimeZone() { |
| 373 | return mTimeZone; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * Sets the specified time zone to use in this clock. When the time zone |
| 378 | * is set through this method, system time zone changes (when the user |
| 379 | * sets the time zone in settings for instance) will be ignored. |
| 380 | * |
| 381 | * @param timeZone The desired time zone's ID as specified in {@link TimeZone} |
| 382 | * or null to user the time zone specified by the user |
| 383 | * (system time zone) |
| 384 | * |
| 385 | * @see #getTimeZone() |
| 386 | * @see java.util.TimeZone#getAvailableIDs() |
| 387 | * @see TimeZone#getTimeZone(String) |
| 388 | * |
| 389 | * @attr ref android.R.styleable#TextClock_timeZone |
| 390 | */ |
Romain Guy | a9cfe67 | 2012-11-05 14:16:32 -0800 | [diff] [blame] | 391 | @RemotableViewMethod |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 392 | public void setTimeZone(String timeZone) { |
| 393 | mTimeZone = timeZone; |
| 394 | |
| 395 | createTime(timeZone); |
| 396 | onTimeChanged(); |
| 397 | } |
| 398 | |
| 399 | /** |
| 400 | * Selects either one of {@link #getFormat12Hour()} or {@link #getFormat24Hour()} |
| 401 | * depending on whether the user has selected 24-hour format. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 402 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 403 | * Calling this method does not schedule or unschedule the time ticker. |
| 404 | */ |
| 405 | private void chooseFormat() { |
| 406 | chooseFormat(true); |
| 407 | } |
| 408 | |
| 409 | /** |
Jeff Sharkey | 06c5f8a | 2012-12-04 09:53:44 -0800 | [diff] [blame] | 410 | * Returns the current format string. Always valid after constructor has |
| 411 | * finished, and will never be {@code null}. |
| 412 | * |
| 413 | * @hide |
| 414 | */ |
| 415 | public CharSequence getFormat() { |
| 416 | return mFormat; |
| 417 | } |
| 418 | |
| 419 | /** |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 420 | * Selects either one of {@link #getFormat12Hour()} or {@link #getFormat24Hour()} |
| 421 | * depending on whether the user has selected 24-hour format. |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 422 | * |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 423 | * @param handleTicker true if calling this method should schedule/unschedule the |
| 424 | * time ticker, false otherwise |
| 425 | */ |
| 426 | private void chooseFormat(boolean handleTicker) { |
| 427 | final boolean format24Requested = is24HourModeEnabled(); |
| 428 | |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 429 | LocaleData ld = LocaleData.get(getContext().getResources().getConfiguration().locale); |
| 430 | |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 431 | if (format24Requested) { |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 432 | mFormat = abc(mFormat24, mFormat12, ld.timeFormat24); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 433 | } else { |
Elliott Hughes | cdafd37 | 2013-03-18 17:21:33 -0700 | [diff] [blame] | 434 | mFormat = abc(mFormat12, mFormat24, ld.timeFormat12); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 435 | } |
| 436 | |
| 437 | boolean hadSeconds = mHasSeconds; |
| 438 | mHasSeconds = DateFormat.hasSeconds(mFormat); |
| 439 | |
Romain Guy | a76f7db | 2012-11-06 17:35:23 -0800 | [diff] [blame] | 440 | if (handleTicker && mAttached && hadSeconds != mHasSeconds) { |
| 441 | if (hadSeconds) getHandler().removeCallbacks(mTicker); |
| 442 | else mTicker.run(); |
Romain Guy | 3d1728c | 2012-10-31 20:31:58 -0700 | [diff] [blame] | 443 | } |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * Returns a if not null, else return b if not null, else return c. |
| 448 | */ |
| 449 | private static CharSequence abc(CharSequence a, CharSequence b, CharSequence c) { |
| 450 | return a == null ? (b == null ? c : b) : a; |
| 451 | } |
| 452 | |
| 453 | @Override |
| 454 | protected void onAttachedToWindow() { |
| 455 | super.onAttachedToWindow(); |
| 456 | |
| 457 | if (!mAttached) { |
| 458 | mAttached = true; |
| 459 | |
| 460 | registerReceiver(); |
| 461 | registerObserver(); |
| 462 | |
| 463 | createTime(mTimeZone); |
| 464 | |
| 465 | if (mHasSeconds) { |
| 466 | mTicker.run(); |
| 467 | } else { |
| 468 | onTimeChanged(); |
| 469 | } |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | @Override |
| 474 | protected void onDetachedFromWindow() { |
| 475 | super.onDetachedFromWindow(); |
| 476 | |
| 477 | if (mAttached) { |
| 478 | unregisterReceiver(); |
| 479 | unregisterObserver(); |
| 480 | |
| 481 | getHandler().removeCallbacks(mTicker); |
| 482 | |
| 483 | mAttached = false; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | private void registerReceiver() { |
| 488 | final IntentFilter filter = new IntentFilter(); |
| 489 | |
| 490 | filter.addAction(Intent.ACTION_TIME_TICK); |
| 491 | filter.addAction(Intent.ACTION_TIME_CHANGED); |
| 492 | filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| 493 | |
| 494 | getContext().registerReceiver(mIntentReceiver, filter, null, getHandler()); |
| 495 | } |
| 496 | |
| 497 | private void registerObserver() { |
| 498 | final ContentResolver resolver = getContext().getContentResolver(); |
| 499 | resolver.registerContentObserver(Settings.System.CONTENT_URI, true, mFormatChangeObserver); |
| 500 | } |
| 501 | |
| 502 | private void unregisterReceiver() { |
| 503 | getContext().unregisterReceiver(mIntentReceiver); |
| 504 | } |
| 505 | |
| 506 | private void unregisterObserver() { |
| 507 | final ContentResolver resolver = getContext().getContentResolver(); |
| 508 | resolver.unregisterContentObserver(mFormatChangeObserver); |
| 509 | } |
| 510 | |
| 511 | private void onTimeChanged() { |
| 512 | mTime.setTimeInMillis(System.currentTimeMillis()); |
| 513 | setText(DateFormat.format(mFormat, mTime)); |
| 514 | } |
| 515 | } |