WearableCalendarContract 查询 "Sort order is not supported" 错误

Question

我在尝试对我的查询应用排序顺序时收到 Sort order is not supported 错误。如果排序顺序为空，查询运行得很好。有人能帮我一下吗？代码如下：

            long currentTime = System.currentTimeMillis();
            Uri.Builder builder = WearableCalendarContract.Instances.CONTENT_URI.buildUpon();
            ContentUris.appendId(builder, currentTime);
            ContentUris.appendId(builder, currentTime + DateUtils.DAY_IN_MILLIS);

            final String[] PROJECTION = {
                    CalendarContract.Calendars._ID, // 0
                    CalendarContract.Instances.BEGIN, // 1
                    CalendarContract.Instances.END, // 2
                    CalendarContract.Events.DISPLAY_COLOR, // 3
                    CalendarContract.Events.TITLE, // 4
                    CalendarContract.Events.ALL_DAY // 5
            };

            final Cursor cursor = getContentResolver()
                    .query(builder.build(),
                            PROJECTION,
                            null, // selection (all)
                            null, // selection args
                            CalendarContract.Instances.BEGIN + " ASC"); // order

Answer 1

正如错误信息所说，WearableCalendarContract.Instances.CONTENT_URI不支持排序。它是与 CalendarContract 完全独立的实现，即使它共享相同的字段。