Android 裝置上的多部分裝置自動化動作

自動化動作可能會參照多部分裝置，方式與未採用多部分裝置的自動化動作類似。

首先，請照常取得元件。如要瞭解如何使用多部分裝置，請參閱「多部分裝置」。

接著，針對要在自動化動作中使用的每個部分，建立 AutomationPartPath，以便在自動化動作啟動器、條件和動作中參照該部分。

// Obtain a reference to the device:
val multipartDevices = structure.devices(enableMultipartDevices = true).first().toList()

val lights = multipartDevices.filter { it.has(OnOffLightDevice) && it.has(OnOff) }

val light = lights.first()

// get the AutomationPartPath for the device
val lightPartPath = light.automationPart(light.part(OnOffLightDevice).first())

此外，自動化動作通常會將裝置和裝置類型做為參數。不過，如果自動化動作參照元件裝置 (同樣使用 AutomationPartPath)，則只需要 AutomationPartPath，因為 AutomationPartPath 除了元件裝置參照之外，也已包含裝置類型參照。

舉例來說，在 Automation API 中，Refrigerator 裝置類型可能會視為多部分裝置。這項元素包含根 RefrigeratorDevice，其中可包含多個子零件櫃，例如冷凍櫃或 TemperatureControlledCabinetDevice 類型的標準櫃。

如要建構冰箱自動化作業，主要會與以下兩個標準特徵互動：Matter

  • RefrigeratorAlarm：透過 state 欄位的 doorOpen 屬性公開門鎖狀態警報。
  • RefrigeratorAndTemperatureControlledCabinetMode：允許讀取和指令模式。舉例來說，執行 changeToMode 等指令，即可切換至 LowEnergy、RapidCool 或 LowNoise 等模式。

這個自動化動作範例會在冰箱門開啟時觸發，如果門開啟超過兩分鐘，自動化動作會在智慧音箱上廣播語音通知、閃爍廚房燈光，並傳送推播通知。請注意，這項自動化功能只會影響裝置的冷藏室，不會影響冷凍室 (如有)：

import com.google.home.automation.action
import com.google.home.automation.automation
import com.google.home.automation.condition
import com.google.home.automation.equals
import com.google.home.automation.starter
import com.google.home.google.AssistantBroadcast
import com.google.home.google.Notification
import com.google.home.matter.standard.OnOff
import com.google.home.matter.standard.OnOffLightDevice
import com.google.home.matter.standard.RefrigeratorAlarm
import com.google.home.matter.standard.RefrigeratorAlarm.Companion.state
import com.google.home.matter.standard.RefrigeratorDevice
import com.google.home.matter.standard.SpeakerDevice
import java.time.Duration

val structure: Structure = home.structures().first()

// Fetch devices using the multipart device model.
var multipartDevices = homeManager.devices(enableMultipartDevices = true)

// Obtain a reference to the refrigerator device.
val refrigeratorDevice = multipartDevices.first {
  it.has(TemperatureControlledCabinetDevice) &&
  it.has(RefrigeratorAndTemperatureControlledCabinetMode) &&
  it.has(RefrigeratorAlarm)
}

// Get all temperature-controlled cabinet parts of the refrigerator
val cabinets = refrigeratorDevice.parts(TemperatureControlledCabinetDevice)

// Find the cabinet part with the 'refrigerator' semantic tag
val refrigeratorCabinet = cabinets.firstOrNull {
  it.metadata.tags.contains(SemanticTag.Refrigerator.refrigerator)
}

val cabinetPartPath = refrigeratorCabinet.automationPath(TemperatureControlledCabinetDevice)

val speaker = home.devices().list().first { device -> device.has(SpeakerDevice) }

val refrigeratorDoorAlert = automation {
  name = "Refrigerator Door Open Alert"
  description = "Warn when the refrigerator door has been open for over 2 min"
  isActive = true

  sequential {
    // 1. Starter: Monitor the refrigerator door alarm trait
    val alarmStarter = starter<_>(cabinetPartPath, RefrigeratorAlarm)

    // 2. Condition: Ensure the 'doorOpen' alarm remains active for 2 continuous min
    condition {
      expression = alarmStarter.state.doorOpen equals true
      forDuration(Duration.ofMinutes(2))
    }

    // 3. Actions: Execute parallel reactions
    parallel {
      // Broadcast warning to household speakers
      action(speaker, SpeakerDevice) {
        command(AssistantBroadcast.broadcast("The refrigerator door has been left open!"))
      }

      // Push a notification alerts to home members' mobile devices
      action(structure) {
        command(Notification.sendNotifications(
          "Fridge Alert",
          { body = "The refrigerator door has been open for over 2 min" }
        ))
      }
    }
  }
}

以下範例會在偵測到無人在家時，將冰箱切換為低耗電模式。

import com.google.home.automation.action
import com.google.home.automation.automation
import com.google.home.automation.condition
import com.google.home.automation.equals
import com.google.home.automation.starter
import com.google.home.google.AreaPresenceState
import com.google.home.google.AreaPresenceState.Companion.presenceState
import com.google.home.google.AreaPresenceStateTrait.PresenceState
import com.google.home.matter.standard.RefrigeratorAndTemperatureControlledCabinetMode
import com.google.home.matter.standard.RefrigeratorAndTemperatureControlledCabinetMode.Companion.changeToMode
import com.google.home.matter.standard.RefrigeratorDevice
import com.google.home.matter.standard.TemperatureControlledCabinetDevice

val structure: Structure = home.structures().first()

// Fetch devices using the multipart device model.
var multipartDevices = homeManager.devices(enableMultipartDevices = true)

// Obtain a reference to the refrigerator device.
val refrigeratorDevice = multipartDevices.first {
  it.has(TemperatureControlledCabinetDevice) &&
  it.has(RefrigeratorAndTemperatureControlledCabinetMode) &&
  it.has(RefrigeratorAlarm)
}

val refrigeratorPartPath = refrigeratorDevice.automationPart(refrigeratorDevice.part(RefrigeratorDevice).first())

// Get all temperature-controlled cabinet parts of the refrigerator
val cabinets = refrigeratorDevice.parts(TemperatureControlledCabinetDevice )

// Find the cabinet part with the 'refrigerator' semantic tag
val refrigeratorCabinet = cabinets.firstOrNull {
  it.metadata.tags.contains(SemanticTag.Refrigerator.refrigerator)
}

val refrigeratorEcoMode = automation {
  name = "Refrigerator Eco Mode"
  description = "Automatically changes refrigerator to low energy mode when house is vacant."
  isActive = true

  sequential {
    // 1. Starter: Monitor household presence changes
    val presenceStarter = starter<_>(structure, AreaPresenceState)

    // 2. Condition: Verify presence state transitions to vacant
    condition {
      expression = presenceStarter.presenceState equals PresenceState.PresenceStateVacant
    }

    // 3. Action: Set refrigerator cabinet Mode to 'Low Energy' (e.g. Mode 1u)
    action(refrigeratorPartPath {
      command(RefrigeratorAndTemperatureControlledCabinetMode.changeToMode(1u))
    }
  }
}