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Adds check for Wearable API #137

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Merged
garanj merged 3 commits into from
Sep 17, 2025
Merged

Adds check for Wearable API #137

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92b2c31
Adds Wearable API check
garanj Sep 16, 2025
b7de6ea
Apply spotless
garanj Sep 16, 2025
6478983
Addresses comments
garanj Sep 16, 2025
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2 changes: 1 addition & 1 deletion watchface/src/main/java/com/android/developers/androidify/watchface/creator/Signer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@ import java.security.cert.X509Certificate
import java.util.Calendar
import java.util.Date

private val keyAlias : String
private val keyAlias: String
get() = "com.android.developers.androidify.ApkSigningKey-" + BuildConfig.BUILD_TYPE
private val certAlias: String
get() = "com.android.developers.androidify.Cert-" + BuildConfig.BUILD_TYPE
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30 changes: 20 additions & 10 deletions ...rc/main/java/com/android/developers/androidify/watchface/transfer/WearAssetTransmitter.kt
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Expand Up @@ -82,20 +82,30 @@ class WearAssetTransmitterImpl @Inject constructor(
*/
override val watchFaceInstallationUpdates = callbackFlow {
trySend(WatchFaceInstallationStatus.NotStarted)
val listener = MessageClient.OnMessageReceivedListener { event ->
if (event.path.contains(transferId)) {
val response =
ProtoBuf.decodeFromByteArray<WatchFaceInstallationStatus.Complete>(event.data)
if (response.transferId == transferId) {
trySend(response)

var listener: MessageClient.OnMessageReceivedListener? = null

/**
* Some devices don't have access to Wearable API via Play Services, so it is necessary to
* check for this scenario first before trying to use the API.
*/
val apiAvailable = WearableApiAvailability.isAvailable(messageClient)
if (apiAvailable) {
listener = MessageClient.OnMessageReceivedListener { event ->
if (event.path.contains(transferId)) {
val response =
ProtoBuf.decodeFromByteArray<WatchFaceInstallationStatus.Complete>(event.data)
if (response.transferId == transferId) {
trySend(response)
}
}
}
messageClient.addListener(listener).await()
}

messageClient.addListener(listener).await()

awaitClose {
messageClient.removeListener(listener).addOnSuccessListener { }
listener?.let {
messageClient.removeListener(it).addOnSuccessListener { }
}
}
}

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38 changes: 27 additions & 11 deletions ...rc/main/java/com/android/developers/androidify/watchface/transfer/WearDeviceRepository.kt
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Expand Up @@ -45,23 +45,39 @@ class WearDeviceRepositoryImpl @Inject constructor(
private val capabilityClient: CapabilityClient by lazy { Wearable.getCapabilityClient(context) }

override val connectedWatch = callbackFlow {
val allDevices = nodeClient.connectedNodes.await().toSet()
val reachableCapability =
capabilityClient.getCapability(ANDROIDIFY_INSTALLED, CapabilityClient.FILTER_REACHABLE)
.await()
var capabilityListener: CapabilityClient.OnCapabilityChangedListener? = null

val installedDevices = reachableCapability.nodes.toSet()
/**
* Some devices don't have access to Wearable API via Play Services, so it is necessary to
* check for this scenario first before trying to use the API.
*/
val apiAvailable = WearableApiAvailability.isAvailable(nodeClient)
if (apiAvailable) {
val allDevices = nodeClient.connectedNodes.await().toSet()
val reachableCapability =
capabilityClient.getCapability(
ANDROIDIFY_INSTALLED,
CapabilityClient.FILTER_REACHABLE,
)
.await()

trySend(selectConnectedDevice(installedDevices, allDevices))
val installedDevices = reachableCapability.nodes.toSet()
trySend(selectConnectedDevice(installedDevices, allDevices))

val capabilityListener = CapabilityClient.OnCapabilityChangedListener { capabilityInfo ->
val installedDevicesUpdated = capabilityInfo.nodes.toSet()
capabilityListener =
CapabilityClient.OnCapabilityChangedListener { capabilityInfo ->
val installedDevicesUpdated = capabilityInfo.nodes.toSet()

trySend(selectConnectedDevice(installedDevicesUpdated, allDevices))
trySend(selectConnectedDevice(installedDevicesUpdated, allDevices))
}
capabilityClient.addListener(capabilityListener, ANDROIDIFY_INSTALLED)
} else {
trySend(null)
}
capabilityClient.addListener(capabilityListener, ANDROIDIFY_INSTALLED)
awaitClose {
capabilityClient.removeListener(capabilityListener)
capabilityListener?.let {
capabilityClient.removeListener(it)
}
}
}

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43 changes: 43 additions & 0 deletions ...main/java/com/android/developers/androidify/watchface/transfer/WearableApiAvailability.kt
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@@ -0,0 +1,43 @@
/*
* Copyright 2025 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.developers.androidify.watchface.transfer

import android.util.Log
import com.google.android.gms.common.GoogleApiAvailability
import com.google.android.gms.common.api.AvailabilityException
import com.google.android.gms.common.api.GoogleApi
import kotlinx.coroutines.tasks.await

/**
* Checks whether a given Wearable Data Layer API is available on this device.
*/
object WearableApiAvailability {
suspend fun isAvailable(api: GoogleApi<*>) = try {
GoogleApiAvailability.getInstance()
.checkApiAvailability(api)
.await()

true
} catch (e: AvailabilityException) {
Log.d(
TAG,
"${api.javaClass.simpleName} API is not available in this device.",
)
false
}
}

private const val TAG = "WearableApiAvailability"