尝试使用 Google Fit 查找某些活动消耗的卡路里

Question

因此，我尝试使用 Google Fit 查找一个月的活动消耗的卡路里并显示信息，但这需要很长时间（大约 45 秒）。我正在做的是检索用户在该时间段内完成的所有活动，并为每个活动在该时间段内消耗的卡路里创建另一个读取请求。我知道这是一个非常糟糕的方法，但我想不出任何其他方法。

@Override
            protected ArrayList<DayActivities> doInBackground(Void... params)
            {
                Calendar cal = Calendar.getInstance();
                Date now = new Date();
                cal.setTime(now);
                cal.set(Calendar.DAY_OF_MONTH, 30);
                cal.add(Calendar.MONTH, -1);
                int currTime;
                ArrayList<CalorieActivity> activityList = new ArrayList<>();

                long endTime = cal.getTimeInMillis();
                SetCalendar.setLessOneMonth(cal);
                long startTime = cal.getTimeInMillis();

                DataReadRequest readRequest = ReadRequestFactory.getActivityReadRequest(startTime, endTime);
                DataReadResult dataReadResult = Fitness.HistoryApi.readData(mClient, readRequest).await(1, TimeUnit.MINUTES);

                if (dataReadResult.getBuckets().size() > 0)
                {
                    Log.i("MyApp", "Number of returned buckets of DataSets is: "
                            + dataReadResult.getBuckets().size());
                    for (Bucket bucket : dataReadResult.getBuckets())
                    {
                        List<DataSet> dataSets = bucket.getDataSets();
                        for (DataSet dataSet : dataSets)
                        {
                            Calendar startDate;
                            Calendar endDate;
                            DayActivities currActivity;
                            Date date;

                            for (DataPoint dp : dataSet.getDataPoints())
                            {
                                startDate = Calendar.getInstance();
                                endDate = Calendar.getInstance();
                                currActivity = new DayActivities();
                                CalorieActivity calorieActivity = new CalorieActivity();

                                startDate.setTime(new Date(dp.getStartTime(TimeUnit.MILLISECONDS)));
                                currActivity.setStartDate(startDate);
                                calorieActivity.setStartDate(startDate);
                                currTime = startDate.get(Calendar.DAY_OF_MONTH);
                                endDate.setTime(new Date(dp.getEndTime(TimeUnit.MILLISECONDS)));
                                currActivity.setEndDate(endDate);
                                calorieActivity.setEndDate(endDate);

                                for (Field field : dp.getDataType().getFields())
                                {
                                    if (field.getName().equals("activity"))
                                    {
                                        calorieActivity.setActivity(ActivityTypes.findActivity(Integer.parseInt(dp.getValue(field).toString())));
                                        calorieActivity.setActivityNumber(Integer.parseInt(dp.getValue(field).toString()));
                                    }
                                }

                                cal.setTime(calorieActivity.getStartDate().getTime());
                                startTime = cal.getTimeInMillis();
                                cal.setTime(calorieActivity.getEndDate().getTime());
                                endTime = cal.getTimeInMillis();

                                DataReadRequest readRequest2 = ReadRequestFactory.getCaloriesReadRequest(startTime, endTime);
                                DataReadResult dataReadResult2 = Fitness.HistoryApi.readData(mClient, readRequest2).await(1, TimeUnit.MINUTES);

                                for (Bucket bucket2 : dataReadResult2.getBuckets())
                                {
                                    List<DataSet> dataSets2 = bucket2.getDataSets();
                                    for (DataSet dataSet2 : dataSets2)
                                    {
                                        for (DataPoint dp2 : dataSet2.getDataPoints())
                                        {
                                            for (Field field2 : dp2.getDataType().getFields())
                                            {
                                                if (field2.getName().equals("calories"))
                                                {
                                                    calorieActivity.setCalorie((int) Double.parseDouble(dp2.getValue(field2).toString()));
                                                }
                                            }
                                        }
                                    }
                                }


                                boolean added = false;
                                for(int j=0; j<dayActivities.size(); j++)
                                {
                                    DayActivities currDay = dayActivities.get(j);
                                    if(currActivity.getStartDate().get(Calendar.DAY_OF_MONTH) == currDay.getStartDate().get(Calendar.DAY_OF_MONTH))
                                    {
                                        currDay.addActivity(calorieActivity);
                                        added = true;
                                    }
                                }
                                if(!added)
                                {
                                    DayActivities newDay = new DayActivities();
                                    Calendar start = Calendar.getInstance();
                                    start.setTime(currActivity.getStartDate().getTime());
                                    Calendar end = Calendar.getInstance();
                                    end.setTime(currActivity.getEndDate().getTime());
                                    SetCalendar.setStartTime(start);
                                    SetCalendar.setEndTime(end);
                                    newDay.setStartDate(start);
                                    newDay.setEndDate(end);
                                    newDay.addActivity(calorieActivity);
                                    dayActivities.add(newDay);
                                }
                            }
                        }
                    }
                }
                else
                {
                    Log.i("MyApp", "No data");
                }
                Log.i("MyApp", "We're done here");
                return dayActivities;
            }

如您所见，for 循环的数量不合理，这是因为我必须找到所有活动，这需要三个 for 循环，然后我需要找到每个活动燃烧的卡路里，其中（对于每个活动）需要另外三个 for 循环。这很荒谬，但我找不到任何其他方法。

Answer 1

重做我的答案：我尝试让自己获得一个月的活动所消耗的总卡路里。首先，这是我使用的请求：

new DataReadRequest.Builder()
        .aggregate(DataType.TYPE_CALORIES_EXPENDED, DataType.AGGREGATE_CALORIES_EXPENDED)
        .bucketByActivitySegment(5, TimeUnit.MINUTES)
        .setTimeRange(startTime, endTime, TimeUnit.MILLISECONDS)
        .build();

这是不言自明的。我请求每次活动消耗的总卡路里（aggregate 和 bucketByActivitySegment），将活动的最短时间设置为 5 分钟。时间范围设置为1个月，返回的信息非常快（

这将为您提供每次活动消耗的卡路里（定义为至少 5 分钟），并且您可以通过 Bucket.getActivity() 返回一个字符串来了解它是什么类型的活动。