src/com/android/deskclock/DeskClock.java

   1 /*
   2  * Copyright (C) 2009 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.Activity;
  20 import android.app.AlarmManager;
  21 import android.app.AlertDialog;
  22 import android.app.PendingIntent;
  23 import android.content.BroadcastReceiver;
  24 import android.content.Context;
  25 import android.content.DialogInterface;
  26 import android.content.Intent;
  27 import android.content.IntentFilter;
  28 import android.content.SharedPreferences;
  29 import android.content.pm.PackageManager;
  30 import android.content.res.Configuration;
  31 import android.content.res.Resources;
  32 import android.database.ContentObserver;
  33 import android.database.Cursor;
  34 import android.graphics.drawable.BitmapDrawable;
  35 import android.graphics.drawable.ColorDrawable;
  36 import android.graphics.drawable.Drawable;
  37 import android.net.Uri;
  38 import android.os.Bundle;
  39 import android.os.Handler;
  40 import android.os.Message;
  41 import android.os.SystemClock;
  42 import android.os.PowerManager;
  43 import android.provider.Settings;
  44 import android.text.TextUtils;
  45 import android.text.format.DateFormat;
  46 import android.util.DisplayMetrics;
  47 import android.util.Log;
  48 import android.view.ContextMenu.ContextMenuInfo;
  49 import android.view.ContextMenu;
  50 import android.view.LayoutInflater;
  51 import android.view.Menu;
  52 import android.view.MenuInflater;
  53 import android.view.MenuItem;
  54 import android.view.View.OnClickListener;
  55 import android.view.View.OnCreateContextMenuListener;
  56 import android.view.View;
  57 import android.view.ViewGroup;
  58 import android.view.Window;
  59 import android.view.WindowManager;
  60 import android.view.animation.Animation;
  61 import android.view.animation.AnimationUtils;
  62 import android.view.animation.TranslateAnimation;
  63 import android.widget.AbsoluteLayout;
  64 import android.widget.AdapterView.AdapterContextMenuInfo;
  65 import android.widget.AdapterView.OnItemClickListener;
  66 import android.widget.AdapterView;
  67 import android.widget.Button;
  68 import android.widget.CheckBox;
  69 import android.widget.ImageButton;
  70 import android.widget.ImageView;
  71 import android.widget.TextView;
  72
  73 import static android.os.BatteryManager.BATTERY_STATUS_CHARGING;
  74 import static android.os.BatteryManager.BATTERY_STATUS_FULL;
  75 import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN;
  76
  77 import java.io.IOException;
  78 import java.io.InputStream;
  79 import java.util.Calendar;
  80 import java.util.Date;
  81 import java.util.Locale;
  82 import java.util.Random;
  83
  84 /**
  85  * DeskClock clock view for desk docks.
  86  */
  87 public class DeskClock extends Activity {
  88     private static final boolean DEBUG = false;
  89
  90     private static final String LOG_TAG = "DeskClock";
  91
  92     // Package ID of the music player.
  93     private static final String MUSIC_PACKAGE_ID = "com.android.music";
  94
  95     // Alarm action for midnight (so we can update the date display).
  96     private static final String ACTION_MIDNIGHT = "com.android.deskclock.MIDNIGHT";
  97
  98     // Interval between forced polls of the weather widget.
  99     private final long QUERY_WEATHER_DELAY = 60 * 60 * 1000; // 1 hr
 100
 101     // Delay before engaging the burn-in protection mode (green-on-black).
 102     private final long SCREEN_SAVER_TIMEOUT = 5 * 60 * 1000; // 5 min
 103
 104     // Repositioning delay in screen saver.
 105     private final long SCREEN_SAVER_MOVE_DELAY = 60 * 1000; // 1 min
 106
 107     // Color to use for text & graphics in screen saver mode.
 108     private final int SCREEN_SAVER_COLOR = 0xFF308030;
 109     private final int SCREEN_SAVER_COLOR_DIM = 0xFF183018;
 110
 111     // Opacity of black layer between clock display and wallpaper.
 112     private final float DIM_BEHIND_AMOUNT_NORMAL = 0.4f;
 113     private final float DIM_BEHIND_AMOUNT_DIMMED = 0.7f; // higher contrast when display dimmed
 114
 115     // Internal message IDs.
 116     private final int QUERY_WEATHER_DATA_MSG     = 0x1000;
 117     private final int UPDATE_WEATHER_DISPLAY_MSG = 0x1001;
 118     private final int SCREEN_SAVER_TIMEOUT_MSG   = 0x2000;
 119     private final int SCREEN_SAVER_MOVE_MSG      = 0x2001;
 120
 121     // Weather widget query information.
 122     private static final String GENIE_PACKAGE_ID = "com.google.android.apps.genie.geniewidget";
 123     private static final String WEATHER_CONTENT_AUTHORITY = GENIE_PACKAGE_ID + ".weather";
 124     private static final String WEATHER_CONTENT_PATH = "/weather/current";
 125     private static final String[] WEATHER_CONTENT_COLUMNS = new String[] {
 126             "location",
 127             "timestamp",
 128             "temperature",
 129             "highTemperature",
 130             "lowTemperature",
 131             "iconUrl",
 132             "iconResId",
 133             "description",
 134         };
 135
 136     private static final String ACTION_GENIE_REFRESH = "com.google.android.apps.genie.REFRESH";
 137
 138     // State variables follow.
 139     private DigitalClock mTime;
 140     private TextView mDate;
 141
 142     private TextView mNextAlarm = null;
 143     private TextView mBatteryDisplay;
 144
 145     private TextView mWeatherCurrentTemperature;
 146     private TextView mWeatherHighTemperature;
 147     private TextView mWeatherLowTemperature;
 148     private TextView mWeatherLocation;
 149     private ImageView mWeatherIcon;
 150
 151     private String mWeatherCurrentTemperatureString;
 152     private String mWeatherHighTemperatureString;
 153     private String mWeatherLowTemperatureString;
 154     private String mWeatherLocationString;
 155     private Drawable mWeatherIconDrawable;
 156
 157     private Resources mGenieResources = null;
 158
 159     private boolean mDimmed = false;
 160     private boolean mScreenSaverMode = false;
 161
 162     private String mDateFormat;
 163
 164     private int mBatteryLevel = -1;
 165     private boolean mPluggedIn = false;
 166
 167     private boolean mLaunchedFromDock = false;
 168
 169     private Random mRNG;
 170
 171     private PendingIntent mMidnightIntent;
 172
 173     private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
 174         @Override
 175         public void onReceive(Context context, Intent intent) {
 176             final String action = intent.getAction();
 177             if (DEBUG) Log.d(LOG_TAG, "mIntentReceiver.onReceive: action=" + action + ", intent=" + intent);
 178             if (Intent.ACTION_DATE_CHANGED.equals(action) || ACTION_MIDNIGHT.equals(action)) {
 179                 refreshDate();
 180             } else if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
 181                 handleBatteryUpdate(
 182                     intent.getIntExtra("status", BATTERY_STATUS_UNKNOWN),
 183                     intent.getIntExtra("level", 0));
 184             } else if (Intent.ACTION_DOCK_EVENT.equals(action)) {
 185                 int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, -1);
 186                 if (DEBUG) Log.d(LOG_TAG, "ACTION_DOCK_EVENT, state=" + state);
 187                 if (state == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
 188                     if (mLaunchedFromDock) {
 189                         // moveTaskToBack(false);
 190                         finish();
 191                     }
 192                     mLaunchedFromDock = false;
 193                 }
 194             }
 195         }
 196     };
 197
 198     private final Handler mHandy = new Handler() {
 199         @Override
 200         public void handleMessage(Message m) {
 201             if (m.what == QUERY_WEATHER_DATA_MSG) {
 202                 new Thread() { public void run() { queryWeatherData(); } }.start();
 203                 scheduleWeatherQueryDelayed(QUERY_WEATHER_DELAY);
 204             } else if (m.what == UPDATE_WEATHER_DISPLAY_MSG) {
 205                 updateWeatherDisplay();
 206             } else if (m.what == SCREEN_SAVER_TIMEOUT_MSG) {
 207                 saveScreen();
 208             } else if (m.what == SCREEN_SAVER_MOVE_MSG) {
 209                 moveScreenSaver();
 210             }
 211         }
 212     };
 213
 214     private final ContentObserver mContentObserver = new ContentObserver(mHandy) {
 215         @Override
 216         public void onChange(boolean selfChange) {
 217             if (DEBUG) Log.d(LOG_TAG, "content observer notified that weather changed");
 218             refreshWeather();
 219         }
 220     };
 221
 222
 223     private void moveScreenSaver() {
 224         moveScreenSaverTo(-1,-1);
 225     }
 226     private void moveScreenSaverTo(int x, int y) {
 227         if (!mScreenSaverMode) return;
 228
 229         final View saver_view = findViewById(R.id.saver_view);
 230
 231         DisplayMetrics metrics = new DisplayMetrics();
 232         getWindowManager().getDefaultDisplay().getMetrics(metrics);
 233
 234         if (x < 0 || y < 0) {
 235             int myWidth = saver_view.getMeasuredWidth();
 236             int myHeight = saver_view.getMeasuredHeight();
 237             x = (int)(mRNG.nextFloat()*(metrics.widthPixels - myWidth));
 238             y = (int)(mRNG.nextFloat()*(metrics.heightPixels - myHeight));
 239         }
 240
 241         if (DEBUG) Log.d(LOG_TAG, String.format("screen saver: %d: jumping to (%d,%d)",
 242                 System.currentTimeMillis(), x, y));
 243
 244         saver_view.setLayoutParams(new AbsoluteLayout.LayoutParams(
 245             ViewGroup.LayoutParams.WRAP_CONTENT,
 246             ViewGroup.LayoutParams.WRAP_CONTENT,
 247             x,
 248             y));
 249
 250         // Synchronize our jumping so that it happens exactly on the second.
 251         mHandy.sendEmptyMessageDelayed(SCREEN_SAVER_MOVE_MSG,
 252             SCREEN_SAVER_MOVE_DELAY +
 253             (1000 - (System.currentTimeMillis() % 1000)));
 254     }
 255
 256     private void setWakeLock(boolean hold) {
 257         if (DEBUG) Log.d(LOG_TAG, (hold ? "hold" : " releas") + "ing wake lock");
 258         Window win = getWindow();
 259         WindowManager.LayoutParams winParams = win.getAttributes();
 260         winParams.flags |= WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD;
 261         winParams.flags |= WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
 262         winParams.flags |= WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON;
 263         if (hold)
 264             winParams.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
 265         else
 266             winParams.flags &= (~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 267         win.setAttributes(winParams);
 268     }
 269
 270     private void scheduleScreenSaver() {
 271         // reschedule screen saver
 272         mHandy.removeMessages(SCREEN_SAVER_TIMEOUT_MSG);
 273         mHandy.sendMessageDelayed(
 274             Message.obtain(mHandy, SCREEN_SAVER_TIMEOUT_MSG),
 275             SCREEN_SAVER_TIMEOUT);
 276     }
 277
 278     private void restoreScreen() {
 279         if (!mScreenSaverMode) return;
 280         if (DEBUG) Log.d(LOG_TAG, "restoreScreen");
 281         mScreenSaverMode = false;
 282         initViews();
 283         doDim(false); // restores previous dim mode
 284         // policy: update weather info when returning from screen saver
 285         if (mPluggedIn) requestWeatherDataFetch();
 286
 287         scheduleScreenSaver();
 288
 289         refreshAll();
 290     }
 291
 292     // Special screen-saver mode for OLED displays that burn in quickly
 293     private void saveScreen() {
 294         if (mScreenSaverMode) return;
 295         if (DEBUG) Log.d(LOG_TAG, "saveScreen");
 296
 297         // quickly stash away the x/y of the current date
 298         final View oldTimeDate = findViewById(R.id.time_date);
 299         int oldLoc[] = new int[2];
 300         oldTimeDate.getLocationOnScreen(oldLoc);
 301
 302         mScreenSaverMode = true;
 303         Window win = getWindow();
 304         WindowManager.LayoutParams winParams = win.getAttributes();
 305         winParams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
 306         win.setAttributes(winParams);
 307
 308         // give up any internal focus before we switch layouts
 309         final View focused = getCurrentFocus();
 310         if (focused != null) focused.clearFocus();
 311
 312         setContentView(R.layout.desk_clock_saver);
 313
 314         mTime = (DigitalClock) findViewById(R.id.time);
 315         mDate = (TextView) findViewById(R.id.date);
 316         mNextAlarm = (TextView) findViewById(R.id.nextAlarm);
 317
 318         final int color = mDimmed ? SCREEN_SAVER_COLOR_DIM : SCREEN_SAVER_COLOR;
 319
 320         ((TextView)findViewById(R.id.timeDisplay)).setTextColor(color);
 321         ((TextView)findViewById(R.id.am_pm)).setTextColor(color);
 322         mDate.setTextColor(color);
 323         mNextAlarm.setTextColor(color);
 324         mNextAlarm.setCompoundDrawablesWithIntrinsicBounds(
 325             getResources().getDrawable(mDimmed
 326                 ? R.drawable.ic_lock_idle_alarm_saver_dim
 327                 : R.drawable.ic_lock_idle_alarm_saver),
 328             null, null, null);
 329
 330         mBatteryDisplay =
 331         mWeatherCurrentTemperature =
 332         mWeatherHighTemperature =
 333         mWeatherLowTemperature =
 334         mWeatherLocation = null;
 335         mWeatherIcon = null;
 336
 337         refreshDate();
 338         refreshAlarm();
 339
 340         moveScreenSaverTo(oldLoc[0], oldLoc[1]);
 341     }
 342
 343     @Override
 344     public void onUserInteraction() {
 345         if (mScreenSaverMode)
 346             restoreScreen();
 347     }
 348
 349     // Tell the Genie widget to load new data from the network.
 350     private void requestWeatherDataFetch() {
 351         if (DEBUG) Log.d(LOG_TAG, "forcing the Genie widget to update weather now...");
 352         sendBroadcast(new Intent(ACTION_GENIE_REFRESH).putExtra("requestWeather", true));
 353         // we expect the result to show up in our content observer
 354     }
 355
 356     private boolean supportsWeather() {
 357         return (mGenieResources != null);
 358     }
 359
 360     private void scheduleWeatherQueryDelayed(long delay) {
 361         // cancel any existing scheduled queries
 362         unscheduleWeatherQuery();
 363
 364         if (DEBUG) Log.d(LOG_TAG, "scheduling weather fetch message for " + delay + "ms from now");
 365
 366         mHandy.sendEmptyMessageDelayed(QUERY_WEATHER_DATA_MSG, delay);
 367     }
 368
 369     private void unscheduleWeatherQuery() {
 370         mHandy.removeMessages(QUERY_WEATHER_DATA_MSG);
 371     }
 372
 373     private void queryWeatherData() {
 374         // if we couldn't load the weather widget's resources, we simply
 375         // assume it's not present on the device.
 376         if (mGenieResources == null) return;
 377
 378         Uri queryUri = new Uri.Builder()
 379             .scheme(android.content.ContentResolver.SCHEME_CONTENT)
 380             .authority(WEATHER_CONTENT_AUTHORITY)
 381             .path(WEATHER_CONTENT_PATH)
 382             .appendPath(new Long(System.currentTimeMillis()).toString())
 383             .build();
 384
 385         if (DEBUG) Log.d(LOG_TAG, "querying genie: " + queryUri);
 386
 387         Cursor cur;
 388         try {
 389             cur = managedQuery(
 390                 queryUri,
 391                 WEATHER_CONTENT_COLUMNS,
 392                 null,
 393                 null,
 394                 null);
 395         } catch (RuntimeException e) {
 396             Log.e(LOG_TAG, "Weather query failed", e);
 397             cur = null;
 398         }
 399
 400         if (cur != null && cur.moveToFirst()) {
 401             if (DEBUG) {
 402                 java.lang.StringBuilder sb =
 403                     new java.lang.StringBuilder("Weather query result: {");
 404                 for(int i=0; i<cur.getColumnCount(); i++) {
 405                     if (i>0) sb.append(", ");
 406                     sb.append(cur.getColumnName(i))
 407                         .append("=")
 408                         .append(cur.getString(i));
 409                 }
 410                 sb.append("}");
 411                 Log.d(LOG_TAG, sb.toString());
 412             }
 413
 414             mWeatherIconDrawable = mGenieResources.getDrawable(cur.getInt(
 415                 cur.getColumnIndexOrThrow("iconResId")));
 416             mWeatherCurrentTemperatureString = String.format("%d\u00b0",
 417                 (cur.getInt(cur.getColumnIndexOrThrow("temperature"))));
 418             mWeatherHighTemperatureString = String.format("%d\u00b0",
 419                 (cur.getInt(cur.getColumnIndexOrThrow("highTemperature"))));
 420             mWeatherLowTemperatureString = String.format("%d\u00b0",
 421                 (cur.getInt(cur.getColumnIndexOrThrow("lowTemperature"))));
 422             mWeatherLocationString = cur.getString(
 423                 cur.getColumnIndexOrThrow("location"));
 424         } else {
 425             Log.w(LOG_TAG, "No weather information available (cur="
 426                 + cur +")");
 427             mWeatherIconDrawable = null;
 428             mWeatherHighTemperatureString = "";
 429             mWeatherLowTemperatureString = "";
 430             mWeatherLocationString = getString(R.string.weather_fetch_failure);
 431         }
 432
 433         mHandy.sendEmptyMessage(UPDATE_WEATHER_DISPLAY_MSG);
 434     }
 435
 436     private void refreshWeather() {
 437         if (supportsWeather())
 438             scheduleWeatherQueryDelayed(0);
 439         updateWeatherDisplay(); // in case we have it cached
 440     }
 441
 442     private void updateWeatherDisplay() {
 443         if (mWeatherCurrentTemperature == null) return;
 444
 445         mWeatherCurrentTemperature.setText(mWeatherCurrentTemperatureString);
 446         mWeatherHighTemperature.setText(mWeatherHighTemperatureString);
 447         mWeatherLowTemperature.setText(mWeatherLowTemperatureString);
 448         mWeatherLocation.setText(mWeatherLocationString);
 449         mWeatherIcon.setImageDrawable(mWeatherIconDrawable);
 450     }
 451
 452     // Adapted from KeyguardUpdateMonitor.java
 453     private void handleBatteryUpdate(int plugStatus, int batteryLevel) {
 454         final boolean pluggedIn = (plugStatus == BATTERY_STATUS_CHARGING || plugStatus == BATTERY_STATUS_FULL);
 455         if (pluggedIn != mPluggedIn) {
 456             setWakeLock(pluggedIn);
 457
 458             if (pluggedIn) {
 459                 // policy: update weather info when attaching to power
 460                 requestWeatherDataFetch();
 461             }
 462         }
 463         if (pluggedIn != mPluggedIn || batteryLevel != mBatteryLevel) {
 464             mBatteryLevel = batteryLevel;
 465             mPluggedIn = pluggedIn;
 466             refreshBattery();
 467         }
 468     }
 469
 470     private void refreshBattery() {
 471         if (mBatteryDisplay == null) return;
 472
 473         if (mPluggedIn /* || mBatteryLevel < LOW_BATTERY_THRESHOLD */) {
 474             mBatteryDisplay.setCompoundDrawablesWithIntrinsicBounds(
 475                 0, 0, android.R.drawable.ic_lock_idle_charging, 0);
 476             mBatteryDisplay.setText(
 477                 getString(R.string.battery_charging_level, mBatteryLevel));
 478             mBatteryDisplay.setVisibility(View.VISIBLE);
 479         } else {
 480             mBatteryDisplay.setVisibility(View.INVISIBLE);
 481         }
 482     }
 483
 484     private void refreshDate() {
 485         final Date now = new Date();
 486         if (DEBUG) Log.d(LOG_TAG, "refreshing date..." + now);
 487         mDate.setText(DateFormat.format(mDateFormat, now));
 488     }
 489
 490     private void refreshAlarm() {
 491         if (mNextAlarm == null) return;
 492
 493         String nextAlarm = Settings.System.getString(getContentResolver(),
 494                 Settings.System.NEXT_ALARM_FORMATTED);
 495         if (!TextUtils.isEmpty(nextAlarm)) {
 496             mNextAlarm.setText(nextAlarm);
 497             //mNextAlarm.setCompoundDrawablesWithIntrinsicBounds(
 498             //    android.R.drawable.ic_lock_idle_alarm, 0, 0, 0);
 499             mNextAlarm.setVisibility(View.VISIBLE);
 500         } else {
 501             mNextAlarm.setVisibility(View.INVISIBLE);
 502         }
 503     }
 504
 505     private void refreshAll() {
 506         refreshDate();
 507         refreshAlarm();
 508         refreshBattery();
 509         refreshWeather();
 510     }
 511
 512     private void doDim(boolean fade) {
 513         View tintView = findViewById(R.id.window_tint);
 514         if (tintView == null) return;
 515
 516         Window win = getWindow();
 517         WindowManager.LayoutParams winParams = win.getAttributes();
 518
 519         winParams.flags |= (WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
 520         winParams.flags |= (WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
 521
 522         // dim the wallpaper somewhat (how much is determined below)
 523         winParams.flags |= (WindowManager.LayoutParams.FLAG_DIM_BEHIND);
 524
 525         if (mDimmed) {
 526             winParams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
 527             winParams.dimAmount = DIM_BEHIND_AMOUNT_DIMMED;
 528
 529             // show the window tint
 530             tintView.startAnimation(AnimationUtils.loadAnimation(this,
 531                 fade ? R.anim.dim
 532                      : R.anim.dim_instant));
 533         } else {
 534             winParams.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
 535             winParams.dimAmount = DIM_BEHIND_AMOUNT_NORMAL;
 536
 537             // hide the window tint
 538             tintView.startAnimation(AnimationUtils.loadAnimation(this,
 539                 fade ? R.anim.undim
 540                      : R.anim.undim_instant));
 541         }
 542
 543         win.setAttributes(winParams);
 544     }
 545
 546     @Override
 547     public void onNewIntent(Intent newIntent) {
 548         super.onNewIntent(newIntent);
 549         if (DEBUG) Log.d(LOG_TAG, "onNewIntent with intent: " + newIntent);
 550
 551         // update our intent so that we can consult it to determine whether or
 552         // not the most recent launch was via a dock event
 553         setIntent(newIntent);
 554     }
 555
 556     @Override
 557     public void onResume() {
 558         super.onResume();
 559         if (DEBUG) Log.d(LOG_TAG, "onResume with intent: " + getIntent());
 560
 561         // reload the date format in case the user has changed settings
 562         // recently
 563         mDateFormat = getString(com.android.internal.R.string.full_wday_month_day_no_year);
 564
 565         IntentFilter filter = new IntentFilter();
 566         filter.addAction(Intent.ACTION_DATE_CHANGED);
 567         filter.addAction(Intent.ACTION_BATTERY_CHANGED);
 568         filter.addAction(Intent.ACTION_DOCK_EVENT);
 569         filter.addAction(ACTION_MIDNIGHT);
 570         registerReceiver(mIntentReceiver, filter);
 571
 572         // Listen for updates to weather data
 573         Uri weatherNotificationUri = new Uri.Builder()
 574             .scheme(android.content.ContentResolver.SCHEME_CONTENT)
 575             .authority(WEATHER_CONTENT_AUTHORITY)
 576             .path(WEATHER_CONTENT_PATH)
 577             .build();
 578         getContentResolver().registerContentObserver(
 579             weatherNotificationUri, true, mContentObserver);
 580
 581         // Elaborate mechanism to find out when the day rolls over
 582         Calendar today = Calendar.getInstance();
 583         today.set(Calendar.HOUR_OF_DAY, 0);
 584         today.set(Calendar.MINUTE, 0);
 585         today.set(Calendar.SECOND, 0);
 586         today.add(Calendar.DATE, 1);
 587         long alarmTimeUTC = today.getTimeInMillis() + today.get(Calendar.ZONE_OFFSET);
 588         mMidnightIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_MIDNIGHT), 0);
 589         AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 590         am.setRepeating(AlarmManager.RTC, alarmTimeUTC, AlarmManager.INTERVAL_DAY, mMidnightIntent);
 591         if (DEBUG) Log.d(LOG_TAG, "set repeating midnight event at "
 592             + alarmTimeUTC + " repeating every "
 593             + AlarmManager.INTERVAL_DAY + " with intent: " + mMidnightIntent);
 594
 595         // un-dim when resuming
 596         mDimmed = false;
 597         doDim(false);
 598
 599         restoreScreen(); // disable screen saver
 600         refreshAll(); // will schedule periodic weather fetch
 601
 602         setWakeLock(mPluggedIn);
 603
 604         scheduleScreenSaver();
 605
 606         final boolean launchedFromDock
 607             = getIntent().hasCategory(Intent.CATEGORY_DESK_DOCK);
 608
 609         if (supportsWeather() && launchedFromDock && !mLaunchedFromDock) {
 610             // policy: fetch weather if launched via dock connection
 611             if (DEBUG) Log.d(LOG_TAG, "Device now docked; forcing weather to refresh right now");
 612             requestWeatherDataFetch();
 613         }
 614
 615         mLaunchedFromDock = launchedFromDock;
 616     }
 617
 618     @Override
 619     public void onPause() {
 620         if (DEBUG) Log.d(LOG_TAG, "onPause");
 621
 622         // Turn off the screen saver and cancel any pending timeouts.
 623         // (But don't un-dim.)
 624         mHandy.removeMessages(SCREEN_SAVER_TIMEOUT_MSG);
 625         restoreScreen();
 626
 627         // Other things we don't want to be doing in the background.
 628         unregisterReceiver(mIntentReceiver);
 629         getContentResolver().unregisterContentObserver(mContentObserver);
 630
 631         AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 632         am.cancel(mMidnightIntent);
 633         unscheduleWeatherQuery();
 634
 635         super.onPause();
 636     }
 637
 638     @Override
 639     public void onStop() {
 640         if (DEBUG) Log.d(LOG_TAG, "onStop");
 641
 642         // Avoid situations where the user launches Alarm Clock and is
 643         // surprised to find it in dim mode (because it was last used in dim
 644         // mode, but that last use is long in the past).
 645         mDimmed = false;
 646
 647         super.onStop();
 648     }
 649
 650     private void initViews() {
 651         // give up any internal focus before we switch layouts
 652         final View focused = getCurrentFocus();
 653         if (focused != null) focused.clearFocus();
 654
 655         setContentView(R.layout.desk_clock);
 656
 657         mTime = (DigitalClock) findViewById(R.id.time);
 658         mDate = (TextView) findViewById(R.id.date);
 659         mBatteryDisplay = (TextView) findViewById(R.id.battery);
 660
 661         mTime.getRootView().requestFocus();
 662
 663         mWeatherCurrentTemperature = (TextView) findViewById(R.id.weather_temperature);
 664         mWeatherHighTemperature = (TextView) findViewById(R.id.weather_high_temperature);
 665         mWeatherLowTemperature = (TextView) findViewById(R.id.weather_low_temperature);
 666         mWeatherLocation = (TextView) findViewById(R.id.weather_location);
 667         mWeatherIcon = (ImageView) findViewById(R.id.weather_icon);
 668
 669         final View.OnClickListener alarmClickListener = new View.OnClickListener() {
 670             public void onClick(View v) {
 671                 startActivity(new Intent(DeskClock.this, AlarmClock.class));
 672             }
 673         };
 674
 675         mNextAlarm = (TextView) findViewById(R.id.nextAlarm);
 676         mNextAlarm.setOnClickListener(alarmClickListener);
 677
 678         final ImageButton alarmButton = (ImageButton) findViewById(R.id.alarm_button);
 679         alarmButton.setOnClickListener(alarmClickListener);
 680
 681         final ImageButton galleryButton = (ImageButton) findViewById(R.id.gallery_button);
 682         galleryButton.setOnClickListener(new View.OnClickListener() {
 683             public void onClick(View v) {
 684                 try {
 685                     startActivity(new Intent(
 686                         Intent.ACTION_VIEW,
 687                         android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
 688                             .putExtra("slideshow", true)
 689                             .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP));
 690                 } catch (android.content.ActivityNotFoundException e) {
 691                     Log.e(LOG_TAG, "Couldn't launch image browser", e);
 692                 }
 693             }
 694         });
 695
 696         final ImageButton musicButton = (ImageButton) findViewById(R.id.music_button);
 697         musicButton.setOnClickListener(new View.OnClickListener() {
 698             public void onClick(View v) {
 699                 try {
 700                     Intent musicAppQuery = getPackageManager()
 701                         .getLaunchIntentForPackage(MUSIC_PACKAGE_ID)
 702                         .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
 703                     if (musicAppQuery != null) {
 704                         startActivity(musicAppQuery);
 705                     }
 706                 } catch (android.content.ActivityNotFoundException e) {
 707                     Log.e(LOG_TAG, "Couldn't launch music browser", e);
 708                 }
 709             }
 710         });
 711
 712         final ImageButton homeButton = (ImageButton) findViewById(R.id.home_button);
 713         homeButton.setOnClickListener(new View.OnClickListener() {
 714             public void onClick(View v) {
 715                 startActivity(
 716                     new Intent(Intent.ACTION_MAIN)
 717                         .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP)
 718                         .addCategory(Intent.CATEGORY_HOME));
 719             }
 720         });
 721
 722         final ImageButton nightmodeButton = (ImageButton) findViewById(R.id.nightmode_button);
 723         nightmodeButton.setOnClickListener(new View.OnClickListener() {
 724             public void onClick(View v) {
 725                 mDimmed = ! mDimmed;
 726                 doDim(true);
 727             }
 728         });
 729
 730         nightmodeButton.setOnLongClickListener(new View.OnLongClickListener() {
 731             public boolean onLongClick(View v) {
 732                 saveScreen();
 733                 return true;
 734             }
 735         });
 736
 737         final View weatherView = findViewById(R.id.weather);
 738         weatherView.setOnClickListener(new View.OnClickListener() {
 739             public void onClick(View v) {
 740                 if (!supportsWeather()) return;
 741
 742                 Intent genieAppQuery = getPackageManager()
 743                     .getLaunchIntentForPackage(GENIE_PACKAGE_ID)
 744                     .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
 745                 if (genieAppQuery != null) {
 746                     startActivity(genieAppQuery);
 747                 }
 748             }
 749         });
 750     }
 751
 752     @Override
 753     public void onConfigurationChanged(Configuration newConfig) {
 754         super.onConfigurationChanged(newConfig);
 755         if (!mScreenSaverMode) {
 756             initViews();
 757             doDim(false);
 758             refreshAll();
 759         }
 760     }
 761
 762     @Override
 763     public boolean onOptionsItemSelected(MenuItem item) {
 764         if (item.getItemId() == R.id.menu_item_alarms) {
 765             startActivity(new Intent(DeskClock.this, AlarmClock.class));
 766             return true;
 767         } else if (item.getItemId() == R.id.menu_item_add_alarm) {
 768             AlarmClock.addNewAlarm(this);
 769             return true;
 770         }
 771         return false;
 772     }
 773
 774     @Override
 775     public boolean onCreateOptionsMenu(Menu menu) {
 776         MenuInflater inflater = getMenuInflater();
 777         inflater.inflate(R.menu.desk_clock_menu, menu);
 778         return true;
 779     }
 780
 781     @Override
 782     protected void onCreate(Bundle icicle) {
 783         super.onCreate(icicle);
 784
 785         mRNG = new Random();
 786
 787         try {
 788             mGenieResources = getPackageManager().getResourcesForApplication(GENIE_PACKAGE_ID);
 789         } catch (PackageManager.NameNotFoundException e) {
 790             // no weather info available
 791             Log.w(LOG_TAG, "Can't find "+GENIE_PACKAGE_ID+". Weather forecast will not be available.");
 792         }
 793
 794         initViews();
 795     }
 796
 797 }