DeskClock.java revision 322abb8230ff8a3ac2b58cf95863b1f8e78a99af 
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
17package com.android.deskclock;
18
19import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN;
20
21import android.app.Activity;
22import android.app.AlarmManager;
23import android.app.PendingIntent;
24import android.app.UiModeManager;
25import android.content.BroadcastReceiver;
26import android.content.Context;
27import android.content.Intent;
28import android.content.IntentFilter;
29import android.content.pm.PackageManager;
30import android.content.res.Configuration;
31import android.content.res.Resources;
32import android.database.ContentObserver;
33import android.database.Cursor;
34import android.graphics.Rect;
35import android.graphics.drawable.Drawable;
36import android.net.Uri;
37import android.os.BatteryManager;
38import android.os.Bundle;
39import android.os.Handler;
40import android.os.Message;
41import android.provider.MediaStore;
42import android.provider.Settings;
43import android.text.TextUtils;
44import android.text.format.DateFormat;
45import android.util.DisplayMetrics;
46import android.util.Log;
47import android.view.Menu;
48import android.view.MenuInflater;
49import android.view.MenuItem;
50import android.view.MotionEvent;
51import android.view.View;
52import android.view.ViewGroup;
53import android.view.ViewTreeObserver;
54import android.view.Window;
55import android.view.WindowManager;
56import android.view.animation.AnimationUtils;
57import android.widget.AbsoluteLayout;
58import android.widget.ImageButton;
59import android.widget.ImageView;
60import android.widget.TextView;
61
62import java.util.Calendar;
63import java.util.Date;
64import java.util.Random;
65
66/**
67 * DeskClock clock view for desk docks.
68 */
69public class DeskClock extends Activity {
70    private static final boolean DEBUG = false;
71
72    private static final String LOG_TAG = "DeskClock";
73
74    // Alarm action for midnight (so we can update the date display).
75    private static final String ACTION_MIDNIGHT = "com.android.deskclock.MIDNIGHT";
76
77    // Intent to broadcast for dock settings.
78    private static final String DOCK_SETTINGS_ACTION = "com.android.settings.DOCK_SETTINGS";
79
80    // Delay before engaging the burn-in protection mode (green-on-black).
81    private final long SCREEN_SAVER_TIMEOUT = 5 * 60 * 1000; // 5 min
82
83    // Repositioning delay in screen saver.
84    public static final long SCREEN_SAVER_MOVE_DELAY = 60 * 1000; // 1 min
85
86    // Color to use for text & graphics in screen saver mode.
87    private int SCREEN_SAVER_COLOR = 0xFF006688;
88    private int SCREEN_SAVER_COLOR_DIM = 0xFF001634;
89
90    // Opacity of black layer between clock display and wallpaper.
91    private final float DIM_BEHIND_AMOUNT_NORMAL = 0.4f;
92    private final float DIM_BEHIND_AMOUNT_DIMMED = 0.8f; // higher contrast when display dimmed
93
94    private final int SCREEN_SAVER_TIMEOUT_MSG   = 0x2000;
95    private final int SCREEN_SAVER_MOVE_MSG      = 0x2001;
96
97    // State variables follow.
98    private DigitalClock mTime;
99    private TextView mDate;
100
101    private TextView mNextAlarm = null;
102    private TextView mBatteryDisplay;
103
104    private boolean mDimmed = false;
105    private boolean mScreenSaverMode = false;
106
107    private String mDateFormat;
108
109    private int mBatteryLevel = -1;
110    private boolean mPluggedIn = false;
111
112    private boolean mLaunchedFromDock = false;
113
114    private Random mRNG;
115
116    private PendingIntent mMidnightIntent;
117
118    private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
119        @Override
120        public void onReceive(Context context, Intent intent) {
121            final String action = intent.getAction();
122            if (DEBUG) Log.d(LOG_TAG, "mIntentReceiver.onReceive: action=" + action + ", intent=" + intent);
123            if (Intent.ACTION_DATE_CHANGED.equals(action) || ACTION_MIDNIGHT.equals(action)) {
124                refreshDate();
125            } else if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
126                handleBatteryUpdate(
127                    intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0),
128                    intent.getIntExtra(BatteryManager.EXTRA_STATUS, BATTERY_STATUS_UNKNOWN),
129                    intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0));
130            } else if (UiModeManager.ACTION_EXIT_DESK_MODE.equals(action)) {
131                if (mLaunchedFromDock) {
132                    // moveTaskToBack(false);
133                    finish();
134                }
135                mLaunchedFromDock = false;
136            } else if (Intent.ACTION_DOCK_EVENT.equals(action)) {
137                if (DEBUG) Log.d(LOG_TAG, "dock event extra "
138                        + intent.getExtras().getInt(Intent.EXTRA_DOCK_STATE));
139                if (mLaunchedFromDock && intent.getExtras().getInt(Intent.EXTRA_DOCK_STATE,
140                        Intent.EXTRA_DOCK_STATE_UNDOCKED) == Intent.EXTRA_DOCK_STATE_UNDOCKED) {
141                    finish();
142                    mLaunchedFromDock = false;
143                }
144            }
145        }
146    };
147
148    public static class DeskClockReceiver extends BroadcastReceiver {
149        @Override
150        public void onReceive(Context context, Intent intent) {
151            if (Intent.ACTION_DOCK_EVENT.equals(intent.getAction())) {
152                Bundle extras = intent.getExtras();
153                int state = extras
154                        .getInt(Intent.EXTRA_DOCK_STATE, Intent.EXTRA_DOCK_STATE_UNDOCKED);
155                if (state == Intent.EXTRA_DOCK_STATE_DESK
156                        || state == Intent.EXTRA_DOCK_STATE_LE_DESK
157                        || state == Intent.EXTRA_DOCK_STATE_HE_DESK) {
158                    Intent clockIntent = new Intent();
159                    clockIntent.setClass(context, DeskClock.class);
160                    clockIntent.addCategory(Intent.CATEGORY_DESK_DOCK);
161                    clockIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
162                    context.startActivity(clockIntent);
163                }
164            }
165        }
166
167    }
168
169    private final Handler mHandy = new Handler() {
170        @Override
171        public void handleMessage(Message m) {
172            if (m.what == SCREEN_SAVER_TIMEOUT_MSG) {
173                saveScreen();
174            } else if (m.what == SCREEN_SAVER_MOVE_MSG) {
175                moveScreenSaver();
176            }
177        }
178    };
179
180    private View mAlarmButton;
181
182
183    private void moveScreenSaver() {
184        moveScreenSaverTo(-1,-1);
185    }
186    private void moveScreenSaverTo(int x, int y) {
187        if (!mScreenSaverMode) return;
188
189        final View saver_view = findViewById(R.id.saver_view);
190
191        DisplayMetrics metrics = new DisplayMetrics();
192        getWindowManager().getDefaultDisplay().getMetrics(metrics);
193
194        if (x < 0 || y < 0) {
195            int myWidth = saver_view.getMeasuredWidth();
196            int myHeight = saver_view.getMeasuredHeight();
197            x = (int)(mRNG.nextFloat()*(metrics.widthPixels - myWidth));
198            y = (int)(mRNG.nextFloat()*(metrics.heightPixels - myHeight));
199        }
200
201        if (DEBUG) Log.d(LOG_TAG, String.format("screen saver: %d: jumping to (%d,%d)",
202                System.currentTimeMillis(), x, y));
203
204        saver_view.setLayoutParams(new AbsoluteLayout.LayoutParams(
205            ViewGroup.LayoutParams.WRAP_CONTENT,
206            ViewGroup.LayoutParams.WRAP_CONTENT,
207            x,
208            y));
209
210        // Synchronize our jumping so that it happens exactly on the second.
211        mHandy.sendEmptyMessageDelayed(SCREEN_SAVER_MOVE_MSG,
212            SCREEN_SAVER_MOVE_DELAY +
213            (1000 - (System.currentTimeMillis() % 1000)));
214    }
215
216    private void setWakeLock(boolean hold) {
217        if (DEBUG) Log.d(LOG_TAG, (hold ? "hold" : " releas") + "ing wake lock");
218        Window win = getWindow();
219        WindowManager.LayoutParams winParams = win.getAttributes();
220        winParams.flags |= (WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
221                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
222                | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
223                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
224        if (hold)
225            winParams.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
226        else
227            winParams.flags &= (~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
228        win.setAttributes(winParams);
229    }
230
231    private void scheduleScreenSaver() {
232        if (!getResources().getBoolean(R.bool.config_requiresScreenSaver)) {
233            return;
234        }
235
236        // reschedule screen saver
237        mHandy.removeMessages(SCREEN_SAVER_TIMEOUT_MSG);
238        mHandy.sendMessageDelayed(
239            Message.obtain(mHandy, SCREEN_SAVER_TIMEOUT_MSG),
240            SCREEN_SAVER_TIMEOUT);
241    }
242
243    private void restoreScreen() {
244        if (!mScreenSaverMode) return;
245        if (DEBUG) Log.d(LOG_TAG, "restoreScreen");
246        mScreenSaverMode = false;
247
248        initViews();
249        doDim(false); // restores previous dim mode
250
251        scheduleScreenSaver();
252
253        refreshAll();
254    }
255
256    // Special screen-saver mode for OLED displays that burn in quickly
257    private void saveScreen() {
258        if (mScreenSaverMode) return;
259        if (DEBUG) Log.d(LOG_TAG, "saveScreen");
260
261        // quickly stash away the x/y of the current date
262        final View oldTimeDate = findViewById(R.id.time_date);
263        int oldLoc[] = new int[2];
264        oldTimeDate.getLocationOnScreen(oldLoc);
265
266        mScreenSaverMode = true;
267        Window win = getWindow();
268        WindowManager.LayoutParams winParams = win.getAttributes();
269        winParams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
270        win.setAttributes(winParams);
271
272        // give up any internal focus before we switch layouts
273        final View focused = getCurrentFocus();
274        if (focused != null) focused.clearFocus();
275
276        setContentView(R.layout.desk_clock_saver);
277
278        mTime = (DigitalClock) findViewById(R.id.time);
279        mDate = (TextView) findViewById(R.id.date);
280
281        final int color = mDimmed ? SCREEN_SAVER_COLOR_DIM : SCREEN_SAVER_COLOR;
282
283        ((AndroidClockTextView)findViewById(R.id.timeDisplay)).setTextColor(color);
284        ((AndroidClockTextView)findViewById(R.id.am_pm)).setTextColor(color);
285        mDate.setTextColor(color);
286
287        mTime.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
288
289        mBatteryDisplay = null;
290
291        refreshDate();
292        refreshAlarm();
293
294        moveScreenSaverTo(oldLoc[0], oldLoc[1]);
295    }
296
297    @Override
298    public void onUserInteraction() {
299        if (mScreenSaverMode)
300            restoreScreen();
301    }
302
303    // Adapted from KeyguardUpdateMonitor.java
304    private void handleBatteryUpdate(int plugged, int status, int level) {
305        final boolean pluggedIn = (plugged != 0);
306        if (pluggedIn != mPluggedIn) {
307            setWakeLock(pluggedIn);
308        }
309        if (pluggedIn != mPluggedIn || level != mBatteryLevel) {
310            mBatteryLevel = level;
311            mPluggedIn = pluggedIn;
312            refreshBattery();
313        }
314    }
315
316    private void refreshBattery() {
317        if (mBatteryDisplay == null) return;
318
319        if (mPluggedIn /* || mBatteryLevel < LOW_BATTERY_THRESHOLD */) {
320            mBatteryDisplay.setCompoundDrawablesWithIntrinsicBounds(
321                0, 0, android.R.drawable.ic_lock_idle_charging, 0);
322            mBatteryDisplay.setText(
323                getString(R.string.battery_charging_level, mBatteryLevel));
324            mBatteryDisplay.setVisibility(View.VISIBLE);
325        } else {
326            mBatteryDisplay.setVisibility(View.INVISIBLE);
327        }
328    }
329
330    private void refreshDate() {
331        final Date now = new Date();
332        if (DEBUG) Log.d(LOG_TAG, "refreshing date..." + now);
333        mDate.setText(DateFormat.format(mDateFormat, now));
334    }
335
336    private void refreshAlarm() {
337        if (mNextAlarm == null) return;
338
339        String nextAlarm = Settings.System.getString(getContentResolver(),
340                Settings.System.NEXT_ALARM_FORMATTED);
341        if (!TextUtils.isEmpty(nextAlarm)) {
342            mNextAlarm.setText(getString(R.string.control_set_alarm_with_existing, nextAlarm));
343            mNextAlarm.setVisibility(View.VISIBLE);
344        } else if (mAlarmButton != null) {
345            mNextAlarm.setVisibility(View.INVISIBLE);
346        } else {
347            mNextAlarm.setText(R.string.control_set_alarm);
348            mNextAlarm.setVisibility(View.VISIBLE);
349        }
350    }
351
352    private void refreshAll() {
353        refreshDate();
354        refreshAlarm();
355        refreshBattery();
356    }
357
358    private void doDim(boolean fade) {
359        View tintView = findViewById(R.id.window_tint);
360        if (tintView == null) return;
361
362        mTime.setSystemUiVisibility(mDimmed ? View.SYSTEM_UI_FLAG_LOW_PROFILE
363                : View.SYSTEM_UI_FLAG_VISIBLE);
364
365        Window win = getWindow();
366        WindowManager.LayoutParams winParams = win.getAttributes();
367
368        winParams.flags |= (WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
369        winParams.flags |= (WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
370
371        // dim the wallpaper somewhat (how much is determined below)
372        winParams.flags |= (WindowManager.LayoutParams.FLAG_DIM_BEHIND);
373
374        if (mDimmed) {
375            winParams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
376            winParams.dimAmount = DIM_BEHIND_AMOUNT_DIMMED;
377            winParams.buttonBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_OFF;
378
379            // show the window tint
380            tintView.startAnimation(AnimationUtils.loadAnimation(this,
381                fade ? R.anim.dim
382                     : R.anim.dim_instant));
383        } else {
384            winParams.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
385            winParams.dimAmount = DIM_BEHIND_AMOUNT_NORMAL;
386            winParams.buttonBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE;
387
388            // hide the window tint
389            tintView.startAnimation(AnimationUtils.loadAnimation(this,
390                fade ? R.anim.undim
391                     : R.anim.undim_instant));
392        }
393
394        win.setAttributes(winParams);
395    }
396
397    @Override
398    public void onNewIntent(Intent newIntent) {
399        super.onNewIntent(newIntent);
400        if (DEBUG) Log.d(LOG_TAG, "onNewIntent with intent: " + newIntent);
401
402        // update our intent so that we can consult it to determine whether or
403        // not the most recent launch was via a dock event
404        setIntent(newIntent);
405    }
406
407    @Override
408    public void onStart() {
409        super.onStart();
410
411        SCREEN_SAVER_COLOR = getResources().getColor(R.color.screen_saver_color);
412        SCREEN_SAVER_COLOR_DIM = getResources().getColor(R.color.screen_saver_dim_color);
413
414        IntentFilter filter = new IntentFilter();
415        filter.addAction(Intent.ACTION_DATE_CHANGED);
416        filter.addAction(Intent.ACTION_BATTERY_CHANGED);
417        filter.addAction(Intent.ACTION_DOCK_EVENT);
418        filter.addAction(UiModeManager.ACTION_EXIT_DESK_MODE);
419        filter.addAction(ACTION_MIDNIGHT);
420        registerReceiver(mIntentReceiver, filter);
421    }
422
423    @Override
424    public void onStop() {
425        super.onStop();
426
427        unregisterReceiver(mIntentReceiver);
428    }
429
430    @Override
431    public void onResume() {
432        super.onResume();
433        if (DEBUG) Log.d(LOG_TAG, "onResume with intent: " + getIntent());
434
435        // reload the date format in case the user has changed settings
436        // recently
437        mDateFormat = getString(R.string.full_wday_month_day_no_year);
438
439        // Elaborate mechanism to find out when the day rolls over
440        Calendar today = Calendar.getInstance();
441        today.set(Calendar.HOUR_OF_DAY, 0);
442        today.set(Calendar.MINUTE, 0);
443        today.set(Calendar.SECOND, 0);
444        today.add(Calendar.DATE, 1);
445        long alarmTimeUTC = today.getTimeInMillis();
446
447        mMidnightIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_MIDNIGHT), 0);
448        AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
449        am.setRepeating(AlarmManager.RTC, alarmTimeUTC, AlarmManager.INTERVAL_DAY, mMidnightIntent);
450        if (DEBUG) Log.d(LOG_TAG, "set repeating midnight event at UTC: "
451            + alarmTimeUTC + " ("
452            + (alarmTimeUTC - System.currentTimeMillis())
453            + " ms from now) repeating every "
454            + AlarmManager.INTERVAL_DAY + " with intent: " + mMidnightIntent);
455
456        // If we weren't previously visible but now we are, it's because we're
457        // being started from another activity. So it's OK to un-dim.
458        if (mTime != null && mTime.getWindowVisibility() != View.VISIBLE) {
459            mDimmed = false;
460        }
461
462        // Adjust the display to reflect the currently chosen dim mode.
463        doDim(false);
464
465        restoreScreen(); // disable screen saver
466        refreshAll(); // will schedule periodic weather fetch
467
468        setWakeLock(mPluggedIn);
469
470        scheduleScreenSaver();
471
472        final boolean launchedFromDock
473            = getIntent().hasCategory(Intent.CATEGORY_DESK_DOCK);
474
475        mLaunchedFromDock = launchedFromDock;
476    }
477
478    @Override
479    public void onPause() {
480        if (DEBUG) Log.d(LOG_TAG, "onPause");
481
482        // Turn off the screen saver and cancel any pending timeouts.
483        // (But don't un-dim.)
484        mHandy.removeMessages(SCREEN_SAVER_TIMEOUT_MSG);
485        restoreScreen();
486
487        AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
488        am.cancel(mMidnightIntent);
489
490        super.onPause();
491    }
492
493    private void initViews() {
494        // give up any internal focus before we switch layouts
495        final View focused = getCurrentFocus();
496        if (focused != null) focused.clearFocus();
497
498        setContentView(R.layout.desk_clock);
499
500        mTime = (DigitalClock) findViewById(R.id.time);
501        mDate = (TextView) findViewById(R.id.date);
502        mBatteryDisplay = (TextView) findViewById(R.id.battery);
503
504        mTime.setSystemUiVisibility(View.STATUS_BAR_VISIBLE);
505        mTime.getRootView().requestFocus();
506
507        final View.OnClickListener alarmClickListener = new View.OnClickListener() {
508            @Override
509            public void onClick(View v) {
510                startActivity(new Intent(DeskClock.this, AlarmClock.class));
511            }
512        };
513
514        mNextAlarm = (TextView) findViewById(R.id.nextAlarm);
515        mNextAlarm.setOnClickListener(alarmClickListener);
516
517        mAlarmButton = findViewById(R.id.alarm_button);
518        View alarmControl = mAlarmButton != null ? mAlarmButton : findViewById(R.id.nextAlarm);
519        alarmControl.setOnClickListener(alarmClickListener);
520
521        final ImageButton nightmodeButton = (ImageButton) findViewById(R.id.nightmode_button);
522        if (nightmodeButton != null) {
523            nightmodeButton.setOnClickListener(new View.OnClickListener() {
524                public void onClick(View v) {
525                    mDimmed = ! mDimmed;
526                    doDim(true);
527                }
528            });
529
530            nightmodeButton.setOnLongClickListener(new View.OnLongClickListener() {
531                public boolean onLongClick(View v) {
532                    saveScreen();
533                    return true;
534                }
535            });
536        }
537
538        final View tintView = findViewById(R.id.window_tint);
539        tintView.setOnTouchListener(new View.OnTouchListener() {
540            public boolean onTouch(View v, MotionEvent event) {
541                if (mDimmed && event.getAction() == MotionEvent.ACTION_DOWN) {
542                    // We want to un-dim the whole screen on tap.
543                    // ...Unless the user is specifically tapping on the dim
544                    // widget, in which case let it do the work.
545                    Rect r = new Rect();
546                    nightmodeButton.getHitRect(r);
547                    int[] gloc = new int[2];
548                    nightmodeButton.getLocationInWindow(gloc);
549                    r.offsetTo(gloc[0], gloc[1]); // convert to window coords
550
551                    if (!r.contains((int) event.getX(), (int) event.getY())) {
552                        mDimmed = false;
553                        doDim(true);
554                    }
555                }
556                return false; // always pass the click through
557            }
558        });
559
560        // Tidy up awkward focus behavior: the first view to be focused in
561        // trackball mode should be the alarms button
562        final ViewTreeObserver vto = alarmControl.getViewTreeObserver();
563        final View alarmView = alarmControl;
564        vto.addOnGlobalFocusChangeListener(new ViewTreeObserver.OnGlobalFocusChangeListener() {
565            public void onGlobalFocusChanged(View oldFocus, View newFocus) {
566                if (oldFocus == null && newFocus == nightmodeButton) {
567                    alarmView.requestFocus();
568                }
569            }
570        });
571    }
572
573    @Override
574    public void onConfigurationChanged(Configuration newConfig) {
575        super.onConfigurationChanged(newConfig);
576        if (mScreenSaverMode) {
577            moveScreenSaver();
578        } else {
579            initViews();
580            doDim(false);
581            refreshAll();
582        }
583    }
584
585    @Override
586    public boolean onOptionsItemSelected(MenuItem item) {
587        switch (item.getItemId()) {
588            case R.id.menu_item_alarms:
589                startActivity(new Intent(DeskClock.this, AlarmClock.class));
590                return true;
591            case R.id.menu_item_add_alarm:
592                startActivity(new Intent(this, SetAlarm.class));
593                return true;
594            case R.id.menu_item_dock_settings:
595                startActivity(new Intent(DOCK_SETTINGS_ACTION));
596                return true;
597            default:
598                return false;
599        }
600    }
601
602    @Override
603    public boolean onCreateOptionsMenu(Menu menu) {
604        MenuInflater inflater = getMenuInflater();
605        inflater.inflate(R.menu.desk_clock_menu, menu);
606        return true;
607    }
608
609    @Override
610    public boolean onPrepareOptionsMenu(Menu menu) {
611        // Only show the "Dock settings" menu item if the device supports it.
612        boolean isDockSupported =
613                (getPackageManager().resolveActivity(new Intent(DOCK_SETTINGS_ACTION), 0) != null);
614        menu.findItem(R.id.menu_item_dock_settings).setVisible(isDockSupported);
615        return super.onPrepareOptionsMenu(menu);
616    }
617
618    @Override
619    protected void onCreate(Bundle icicle) {
620        super.onCreate(icicle);
621
622        mRNG = new Random();
623
624        initViews();
625    }
626}
627