阅读每日步数总计

本部分演示了如何使用 Fit Android API 和 Fit REST API 读取当前的每日步数数据。

Android

您的应用可通过调用 HistoryClient.readDailyTotal 读取当前的每日总步数，如以下示例所示：

Fitness.getHistoryClient(this, GoogleSignIn.getAccountForExtension(this, fitnessOptions))
    .readDailyTotal(DataType.TYPE_STEP_COUNT_DELTA)
    .addOnSuccessListener { result ->
        val totalSteps =
            result.dataPoints.firstOrNull()?.getValue(Field.FIELD_STEPS)?.asInt() ?: 0
        // Do something with totalSteps
    }
    .addOnFailureListener { e ->
        Log.i(TAG, "There was a problem getting steps.", e)
    }

每日总计是根据设备当前时区的午夜计算得出的。

如需获取与 Google 健身应用相同的每日步数，请使用 com.google.android.gms 应用软件包创建一个数据源，如以下示例所示：

val startTime = LocalDate.now().atStartOfDay(ZoneId.systemDefault())
val endTime = LocalDateTime.now().atZone(ZoneId.systemDefault())

val datasource = DataSource.Builder()
    .setAppPackageName("com.google.android.gms")
    .setDataType(DataType.TYPE_STEP_COUNT_DELTA)
    .setType(DataSource.TYPE_DERIVED)
    .setStreamName("estimated_steps")
    .build()

val request = DataReadRequest.Builder()
    .aggregate(datasource)
    .bucketByTime(1, TimeUnit.DAYS)
    .setTimeRange(startTime.toEpochSecond(), endTime.toEpochSecond(), TimeUnit.SECONDS)
    .build()

Fitness.getHistoryClient(this, GoogleSignIn.getAccountForExtension(this, fitnessOptions))
    .readData(request)
    .addOnSuccessListener { response ->
        val totalSteps = response.buckets
            .flatMap { it.dataSets }
            .flatMap { it.dataPoints }
            .sumBy { it.getValue(Field.FIELD_STEPS).asInt() }
        Log.i(TAG, "Total steps: $totalSteps")
    }

如需详细了解如何使用汇总数据源，请参阅使用健身记录。

REST

您的应用可以通过发出 POST 请求并查询指定时间段内的 com.google.step_count.delta 数据类型，来读取所有数据源的当前每日步数总计。

HTTP 方法

POST

Request URL

https://www.googleapis.com/fitness/v1/users/me/dataset:aggregate

请求正文

{
  "aggregateBy": [{
    "dataTypeName": "com.google.step_count.delta",
    "dataSourceId": "derived:com.google.step_count.delta:com.google.android.gms:estimated_steps"
  }],
  "bucketByTime": { "durationMillis": 86400000 },
  "startTimeMillis": 1438705622000,
  "endTimeMillis": 1439310422000
}

“Curl”命令

curl \
-X POST \
-H "Content-Type: application/json;encoding=utf-8" \
-H "Authorization: Bearer $ACCESS_TOKEN" \
-d @aggregate.json \
https://www.googleapis.com/fitness/v1/users/me/dataset:aggregate