import com.google.samples.apps.iosched.model.ScheduleItemHelper; //导入依赖的package包/类
public void updateItems(final List<ScheduleItem> items) {
    mItems.clear();
    if (items == null) {
        notifyDataSetChanged();
        return;
    }

    if (!mShowTimeSeparators) {
        mItems.addAll(items);
    } else {
        for (int i = 0, size = items.size(); i < size; i++) {
            final ScheduleItem prev = i > 0 ? items.get(i - 1) : null;
            final ScheduleItem item = items.get(i);

            if (prev == null || !ScheduleItemHelper.sameStartTime(prev, item, true)) {
                mItems.add(new TimeSeperatorItem(item));
            }
            mItems.add(item);
        }
    }

    // TODO use DiffUtil
    notifyDataSetChanged();
}
 

import com.google.samples.apps.iosched.model.ScheduleItemHelper; //导入依赖的package包/类
public Boolean startTest() {
    boolean success = true;
    ArrayList<ScheduleItem> items = new ArrayList<>();

    items.add(item(false, -1, "14:00", "14:30", "m1"));
    items.add(item(true, -1, "14:25", "14:50", "i1"));
    success &= check("no intersection - within range",
            ScheduleItemHelper.processItems(items),
            new ScheduleItem[]{
                    item(false, -1, "14:00", "14:30", "m1"),
                    item(true, -1, "14:25", "14:50", "i1")});

    items.clear();
    items.add(item(true, 0, "14:30", "15:00", "i1"));
    items.add(item(true, -1, "16:30", "19:00", "i2"));
    items.add(item(true, -1, "16:30", "17:00", "i3"));
    items.add(item(true, -1, "18:00", "18:30", "i4"));
    success &= check("conflicting sessions",
            ScheduleItemHelper.processItems(items),
            new ScheduleItem[]{
                    item(true, -1, "14:30", "15:00", "i1"),
                    item(true, -1, "16:30", "19:00", "i2"),
                    item(true, -1, "16:30", "17:00", "i3", true),
                    item(true, -1, "18:00", "18:30", "i4", true),
            });

    return success;
}
 

import com.google.samples.apps.iosched.model.ScheduleItemHelper; //导入依赖的package包/类
@Override
public Cursor performQuery(@NonNull CursorModelLoader<List<ScheduleItem>> loader,
        @NonNull CancellationSignal cancellationSignal) {
    return ContentResolverCompat.query(loader.getContext().getContentResolver(),
            Sessions.CONTENT_MY_SCHEDULE_URI, ScheduleItemHelper.REQUIRED_SESSION_COLUMNS,
            null, null, Sessions.SORT_BY_TIME, cancellationSignal);
}
 

import com.google.samples.apps.iosched.model.ScheduleItemHelper; //导入依赖的package包/类
@Override
public List<ScheduleItem> cursorToModel(@NonNull CursorModelLoader<List<ScheduleItem>> loader,
        @NonNull Cursor cursor) {
    return ScheduleItemHelper.cursorToItems(cursor, loader.getContext());
}
 

import com.google.samples.apps.iosched.model.ScheduleItemHelper; //导入依赖的package包/类
private void readDataFromRelatedSessionsCursor(Cursor cursor) {
    mRelatedSessions = ScheduleItemHelper.cursorToItems(cursor, mContext);
}