import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private String formatTime(long now, ScheduleItem item) {
    StringBuilder time = new StringBuilder();
    if (item.startTime <= now) {
        // session is happening now!
        if (0 != (item.flags & ScheduleItem.FLAG_HAS_LIVESTREAM)) {
            // session has live stream
            time.append(mContext.getString(R.string.watch_now));
        } else {
            time.append(mContext.getString(R.string.session_now));
        }
    } else {
        // session in the future
        time.append(TimeUtils.formatShortTime(mContext, new Date(item.startTime)));
    }
    time.append(" - ");
    time.append(TimeUtils.formatShortTime(mContext, new Date(item.endTime)));
    return time.toString();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    if (id != QUERY_TOKEN_SESSION_ROOM && id != QUERY_TOKEN_SUBTITLE) {
        return null;
    }

    final long time = TimeUtils.getCurrentTime(getActivity());
    final String roomId = args.getString(QUERY_ARG_ROOMID);
    final String roomTitle = args.getString(QUERY_ARG_ROOMTITLE);
    final int roomType = args.getInt(QUERY_ARG_ROOMTYPE);
    final String iconType = args.getString(QUERY_ARG_ICONTYPE);

    if (id == QUERY_TOKEN_SESSION_ROOM) {
        return new OverviewSessionLoader(getActivity(), roomId, roomTitle, roomType, iconType,
                time);
    } else if (id == QUERY_TOKEN_SUBTITLE) {
        return new SingleSessionLoader(getActivity(), roomId, roomTitle, roomType, iconType);
    }
    return null;
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
@Override
public void run() {
    ScheduleActivity activity = ScheduleActivity.this;
    if (activity.isDestroyed()) {
        LOGD(TAG, "Activity is not valid anymore. Stopping UI Updater");
        return;
    }

    LOGD(TAG, "Running MySchedule UI updater (now=" +
            new Date(TimeUtils.getCurrentTime(activity)) + ")");

    mPresenter.onUserAction(ScheduleModel.MyScheduleUserActionEnum.REDRAW_UI, null);

    if (TimeUtils.isConferenceInProgress(activity)) {
        scheduleNextUiUpdate();
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private String formatDescription(@NonNull Context context, @NonNull ScheduleItem item,
                                 SessionTimeFormat timeFormat) {
    final StringBuilder description = mTmpStringBuilder;
    mTmpStringBuilder.setLength(0); // clear the builder
    if (timeFormat == DURATION) {
        description.append(TimeUtils.formatDuration(context, item.startTime, item.endTime));
    } else if (timeFormat == SPAN) {
        description.append(TimeUtils.formatShortTime(context, new Date(item.startTime)));
        if (!SPECIAL_KEYNOTE.equals(item.mainTag)) {
            description.append(" - ");
            description.append(TimeUtils.formatShortTime(context, new Date(item.endTime)));
        }
    }
    if (!TextUtils.isEmpty(item.room)) {
        description.append(" / ");
        description.append(item.room);
    }
    return description.toString();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
public void scheduleFeedbackAlarm(final long sessionEnd,
        final long alarmOffset, final String sessionTitle) {
    // By default, feedback alarms fire 5 minutes before session end time. If alarm offset is
    // provided, alarm is set to go off that much time from now (useful for testing).
    long alarmTime;
    if (alarmOffset == UNDEFINED_ALARM_OFFSET) {
        alarmTime = sessionEnd - MILLI_FIVE_MINUTES;
    } else {
        alarmTime = TimeUtils.getCurrentTime(this) + alarmOffset;
    }

    LOGD(TAG, "Scheduling session feedback alarm for session '" + sessionTitle + "'");
    LOGD(TAG, "  -> end time: " + sessionEnd + " = " + (new Date(sessionEnd)).toString());
    LOGD(TAG, "  -> alarm time: " + alarmTime + " = " + (new Date(alarmTime)).toString());

    final Intent feedbackIntent = new Intent(
            ACTION_NOTIFY_SESSION_FEEDBACK,
            null,
            this,
            SessionAlarmService.class);
    PendingIntent pi = PendingIntent.getService(
            this, 1, feedbackIntent, PendingIntent.FLAG_CANCEL_CURRENT);
    final AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    am.set(AlarmManager.RTC_WAKEUP, alarmTime, pi);
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private void rewriteKeynoteDetails(SessionData keynoteData) {
    long startTime, endTime, currentTime;
    currentTime = UIUtils.getCurrentTime(mContext);
    if (keynoteData.getStartDate() != null) {
        startTime = keynoteData.getStartDate().getTime();
    } else {
        LOGD(TAG, "Keynote start time wasn't set");
        startTime = 0;
    }
    if (keynoteData.getEndDate() != null) {
        endTime = keynoteData.getEndDate().getTime();
    } else {
        LOGD(TAG, "Keynote end time wasn't set");
        endTime = Long.MAX_VALUE;
    }

    StringBuilder stringBuilder = new StringBuilder();
    if (currentTime >= startTime && currentTime < endTime) {
        stringBuilder.append(mContext.getString(R.string
                .live_now));
    } else {
        String shortDate = TimeUtils.formatShortDate(mContext, keynoteData.getStartDate());
        stringBuilder.append(shortDate);

        if (startTime > 0) {
            stringBuilder.append(" / " );
            stringBuilder.append(TimeUtils.formatShortTime(mContext,
                    new java.util.Date(startTime)));
        }
    }
    keynoteData.setDetails(stringBuilder.toString());
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
/**
 * Defines the Navigation Drawer items to display by updating {@code mNavDrawerItems} then
 * forces the Navigation Drawer to redraw itself.
 */
private void populateNavDrawer() {
    boolean attendeeAtVenue = SettingsUtils.isAttendeeAtVenue(this);
    boolean conferenceInProgress = TimeUtils.isConferenceInProgress(this);
    mNavDrawerItems.clear();

    // decide which items will appear in the nav drawer
    if (AccountUtils.hasActiveAccount(this)) {
        // Only logged-in users can save sessions, so if there is no active account,
        // there is no My Schedule
        mNavDrawerItems.add(NAVDRAWER_ITEM_MY_SCHEDULE);
    } else {
        // If no active account, show Sign In
        mNavDrawerItems.add(NAVDRAWER_ITEM_SIGN_IN);
    }

    // Explore is always shown.
    mNavDrawerItems.add(NAVDRAWER_ITEM_EXPLORE);

    // If the attendee is on-site, show Map on the nav drawer
    if (attendeeAtVenue) {
        mNavDrawerItems.add(NAVDRAWER_ITEM_MAP);
    }
    mNavDrawerItems.add(NAVDRAWER_ITEM_SEPARATOR);

    // Other items that are always in the nav drawer.
    mNavDrawerItems.add(NAVDRAWER_ITEM_SOCIAL);
    mNavDrawerItems.add(NAVDRAWER_ITEM_VIDEO_LIBRARY);
    mNavDrawerItems.add(NAVDRAWER_ITEM_SEPARATOR_SPECIAL);
    mNavDrawerItems.add(NAVDRAWER_ITEM_SETTINGS);
    mNavDrawerItems.add(NAVDRAWER_ITEM_ABOUT);

    // Debug menu only on debug builds.
    if (BuildConfig.DEBUG) {
        mNavDrawerItems.add(NAVDRAWER_ITEM_DEBUG);
    }

    createNavDrawerItems();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private String formatDescription(ScheduleItem item) {
    StringBuilder description = new StringBuilder();
    description.append(TimeUtils.formatShortTime(mContext, new Date(item.startTime)));
    if (!Config.Tags.SPECIAL_KEYNOTE.equals(item.mainTag)) {
        description.append(" - ");
        description.append(TimeUtils.formatShortTime(mContext, new Date(item.endTime)));
    }
    if (!TextUtils.isEmpty(item.room)) {
        description.append(" / ");
        description.append(item.room);
    }
    return description.toString();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private void setupWifiOfferCard(final MessageCardView card) {
    card.setText(getString(TimeUtils.hasConferenceStarted(getActivity()) ?
            R.string.question_setup_wifi_after_i_o_start :
            R.string.question_setup_wifi_before_i_o_start));
    card.setButton(0, getString(R.string.no_thanks), CARD_ANSWER_NO,
            false, 0);
    card.setButton(1, getString(R.string.setup_wifi_yes), CARD_ANSWER_YES,
            true, 0);
    final Context context = getActivity().getApplicationContext();
    card.setListener(new MessageCardView.OnMessageCardButtonClicked() {
        @Override
        public void onMessageCardButtonClicked(final String tag) {
            card.dismiss(true);

            // post delayed to give card time to animate
            mHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    if (CARD_ANSWER_YES.equals(tag)) {
                        WiFiUtils.showWiFiDialog(SessionsFragment.this.getActivity());
                    } else {
                        PrefUtils.markDeclinedWifiSetup(context);
                    }
                }
            }, CARD_DISMISS_ACTION_DELAY);
        }
    });
    card.show();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private void moveToCurrentTimeSlot() {
    // don't auto-scroll to current time outside of the conf or if user has manually scrolled
    if (mScrolled || !TimeUtils.isConferenceInProgress(getContext())) return;

    int nowPos = mAdapter.findPositionForTime(TimeUtils.getCurrentTime(getContext()));
    if (nowPos > 0) {
        LinearLayoutManager lm = (LinearLayoutManager) mRecyclerView.getLayoutManager();
        lm.scrollToPositionWithOffset(nowPos,
                getResources().getDimensionPixelOffset(R.dimen.spacing_normal));
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
/**
 * Live stream should be shown if url is available and the session will start in no more than 10
 * minutes, or is ongoing or has ended.
 */
public boolean showLiveStream() {
    if (!hasLiveStream()) {
        return false;
    }
    long currentTimeMillis = TimeUtils.getCurrentTime(mContext);
    return currentTimeMillis >
            mSessionStart - SessionDetailConstants.LIVESTREAM_BEFORE_SESSION_START_MS;
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
/**
 * Returns the number of minutes, rounded down, since session has started, or 0 if not started
 * yet.
 */
public long minutesSinceSessionStarted() {
    if (!hasSessionStarted()) {
        return 0l;
    } else {
        long currentTimeMillis = TimeUtils.getCurrentTime(mContext);
        // Rounded down number of minutes.
        return (currentTimeMillis - mSessionStart) / 60000;
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
/**
 * Returns the number of minutes, rounded up, until session stars, or 0 if already started.
 */
public long minutesUntilSessionStarts() {
    if (hasSessionStarted()) {
        return 0l;
    } else {
        long currentTimeMillis = TimeUtils.getCurrentTime(mContext);
        int minutes = (int) ((mSessionStart - currentTimeMillis) / 60000);
        // Rounded up number of minutes.
        return minutes * 60000 < (mSessionStart - currentTimeMillis) ? minutes + 1 : minutes;
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
public long minutesUntilSessionEnds() {
    if (hasSessionEnded()) {
        // If session has ended, return 0 minutes until end of session.
        return 0l;
    } else {
        long currentTimeMillis = TimeUtils.getCurrentTime(mContext);
        int minutes = (int) ((mSessionEnd - currentTimeMillis) / 60000);
        // Rounded up number of minutes.
        return minutes * 60000 < (mSessionEnd - currentTimeMillis) ? minutes + 1 : minutes;
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private void moveToCurrentTimeSlot(boolean animate) {
    final long now = TimeUtils.getCurrentTime(getContext());
    final int pos = mViewAdapter.findTimeHeaderPositionForTime(now);
    if (pos >= 0) {
        if (animate) {
            mRecyclerView.smoothScrollToPosition(pos);
        } else {
            LinearLayoutManager lm = (LinearLayoutManager) mRecyclerView.getLayoutManager();
            lm.scrollToPositionWithOffset(pos,
                    getResources().getDimensionPixelSize(R.dimen.spacing_normal));
        }
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
@Override
public void onResume() {
    super.onResume();

    if (TimeUtils.isConferenceInProgress(this)) {
        scheduleNextUiUpdate();
    }
    mModel.addDataObservers();
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
private void calculateCurrentDay() {
    final long now = TimeUtils.getCurrentTime(getContext());

    // If we are before or after the conference, the first day is considered the current day
    mToday = 0;

    for (int i = 0; i < Config.CONFERENCE_DAYS.length; i++) {
        if (now >= Config.CONFERENCE_DAYS[i][0] && now <= Config.CONFERENCE_DAYS[i][1]) {
            // mToday is set to 1 for the first day, 2 for the second etc
            mToday = i;
            break;
        }
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
public static List<ConfMessageCard> getActiveSimpleCards(Context context) {
    ArrayList<ConfMessageCard> activeSimpleCards = new ArrayList<>();
    for (ConfMessageCard card : ConfMessageCard.values()) {
        if (card.isSimpleMessageCard() && card.isTimeActive(TimeUtils.getCurrentTime(context))
                && !hasDismissedConfMessageCard(context, card)) {
            activeSimpleCards.add(card);
        }
    }
    return activeSimpleCards;
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
/**
 * Mark appropriate cards active.
 *
 * @param context Context to be used to lookup the {@link android.content.SharedPreferences}.
 */
public static void enableActiveCards(final Context context) {
    long currentTime = TimeUtils.getCurrentTime(context);
    for (ConfMessageCard card : ConfMessageCard.values()) {
        if (card.isTimeActive(currentTime)) {
            markShouldShowConfMessageCard(context, card, true);
        }
    }
}
 

import com.google.samples.apps.iosched.util.TimeUtils; //导入依赖的package包/类
public int getItemViewType(int position) {
    if (position < 0 || position >= mScheduleItems.size()) {
        LOGE(TAG, "Invalid view position passed to ScheduleDayAdapter: " + position);
        return VIEW_TYPE_NORMAL;
    }
    ScheduleItem item = mScheduleItems.get(position);
    long now = TimeUtils.getCurrentTime(mContext);
    if (item.startTime <= now && now <= item.endTime && item.type == ScheduleItem.SESSION) {
        return VIEW_TYPE_NOW;
    } else {
        return VIEW_TYPE_NORMAL;
    }
}