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89 changes: 89 additions & 0 deletions
89
...core/src/main/java/com/google/android/horologist/networks/battery/BatteryStatusMonitor.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /* | ||
| * Copyright 2023 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.google.android.horologist.networks.battery | ||
|
|
||
| import android.content.BroadcastReceiver | ||
| import android.content.Context | ||
| import android.content.Intent | ||
| import android.content.Intent.ACTION_BATTERY_LOW | ||
| import android.content.Intent.ACTION_BATTERY_OKAY | ||
| import android.content.IntentFilter | ||
| import android.os.BatteryManager | ||
| import android.os.BatteryManager.ACTION_CHARGING | ||
| import android.os.BatteryManager.ACTION_DISCHARGING | ||
| import android.os.PowerManager | ||
| import android.os.PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED | ||
| import android.os.PowerManager.ACTION_POWER_SAVE_MODE_CHANGED | ||
| import androidx.core.content.ContextCompat | ||
| import androidx.core.content.ContextCompat.RECEIVER_EXPORTED | ||
| import kotlinx.coroutines.channels.awaitClose | ||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.callbackFlow | ||
| import kotlinx.coroutines.flow.emitAll | ||
| import kotlinx.coroutines.flow.flow | ||
|
|
||
| public class BatteryStatusMonitor( | ||
| private val context: Context, | ||
| ) { | ||
| private val powerManager: PowerManager = context.getSystemService(PowerManager::class.java) | ||
| private val batteryManager: BatteryManager = | ||
| context.getSystemService(BatteryManager::class.java) | ||
|
|
||
| private val subscriptionFlow = callbackFlow { | ||
| val receiver = object : BroadcastReceiver() { | ||
| override fun onReceive(context: Context, intent: Intent) { | ||
| trySend(batteryStatus()) | ||
| } | ||
| } | ||
|
|
||
| ContextCompat.registerReceiver( | ||
| context, | ||
| receiver, | ||
| IntentFilter().apply { | ||
| addAction(ACTION_DEVICE_IDLE_MODE_CHANGED) | ||
| addAction(ACTION_POWER_SAVE_MODE_CHANGED) | ||
| addAction(ACTION_CHARGING) | ||
| addAction(ACTION_DISCHARGING) | ||
| addAction(ACTION_BATTERY_LOW) | ||
| addAction(ACTION_BATTERY_OKAY) | ||
| }, | ||
| RECEIVER_EXPORTED, | ||
| ) | ||
|
|
||
| awaitClose { | ||
| context.unregisterReceiver(receiver) | ||
| } | ||
| } | ||
|
|
||
| public val status: Flow<BatteryStatus> = flow { | ||
| emit(batteryStatus()) | ||
| emitAll(subscriptionFlow) | ||
| } | ||
|
|
||
| private fun batteryStatus() = | ||
| BatteryStatus( | ||
| batteryManager.isCharging, | ||
| powerManager.isDeviceIdleMode, | ||
| powerManager.isPowerSaveMode, | ||
| ) | ||
|
|
||
| public data class BatteryStatus( | ||
| val charging: Boolean, | ||
| val deviceIdleMode: Boolean, | ||
| val powerSaveMode: Boolean, | ||
| ) | ||
| } |
85 changes: 85 additions & 0 deletions
85
.../src/test/java/com/google/android/horologist/networks/battery/BatteryStatusMonitorTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * Copyright 2023 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. | ||
| */ | ||
|
|
||
| @file:OptIn(ExperimentalCoroutinesApi::class) | ||
|
|
||
| package com.google.android.horologist.networks.battery | ||
|
|
||
| import android.app.Application | ||
| import android.os.BatteryManager | ||
| import android.os.PowerManager | ||
| import androidx.test.core.app.ApplicationProvider | ||
| import androidx.test.ext.junit.runners.AndroidJUnit4 | ||
| import com.google.common.truth.Truth.assertThat | ||
| import kotlinx.coroutines.ExperimentalCoroutinesApi | ||
| import kotlinx.coroutines.flow.first | ||
| import kotlinx.coroutines.test.runTest | ||
| import org.junit.Before | ||
| import org.junit.Test | ||
| import org.junit.runner.RunWith | ||
| import org.robolectric.Shadows.shadowOf | ||
| import org.robolectric.annotation.Config | ||
|
|
||
| @RunWith(AndroidJUnit4::class) | ||
| @Config(sdk = [33]) | ||
| class BatteryStatusMonitorTest { | ||
| private lateinit var powerManager: PowerManager | ||
| private lateinit var batteryManager: BatteryManager | ||
| private lateinit var batteryStatusMonitor: BatteryStatusMonitor | ||
|
|
||
| @Before | ||
| fun setup() { | ||
| val applicationContext = ApplicationProvider.getApplicationContext<Application>() | ||
| batteryManager = applicationContext.getSystemService(BatteryManager::class.java) | ||
| powerManager = applicationContext.getSystemService(PowerManager::class.java) | ||
| batteryStatusMonitor = BatteryStatusMonitor(applicationContext) | ||
| } | ||
|
|
||
| @Test | ||
| fun readsFromBatteryManager() = runTest { | ||
| var status = batteryStatusMonitor.status.first() | ||
|
|
||
| assertThat(status).isEqualTo( | ||
| BatteryStatusMonitor.BatteryStatus( | ||
| batteryManager.isCharging, | ||
| powerManager.isDeviceIdleMode, | ||
| powerManager.isPowerSaveMode, | ||
| ), | ||
| ) | ||
|
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| shadowOf(batteryManager).setIsCharging(false) | ||
| status = batteryStatusMonitor.status.first() | ||
|
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| assertThat(status).isEqualTo( | ||
| BatteryStatusMonitor.BatteryStatus( | ||
| false, | ||
| powerManager.isDeviceIdleMode, | ||
| powerManager.isPowerSaveMode, | ||
| ), | ||
| ) | ||
|
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| shadowOf(batteryManager).setIsCharging(true) | ||
| status = batteryStatusMonitor.status.first() | ||
|
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| assertThat(status).isEqualTo( | ||
| BatteryStatusMonitor.BatteryStatus( | ||
| true, | ||
| powerManager.isDeviceIdleMode, | ||
| powerManager.isPowerSaveMode, | ||
| ), | ||
| ) | ||
| } | ||
| } |