Redesign service approach

2025-12-19 15:34:26 +01:00 · 2022-02-10 16:37:22 +01:00
parent 7c69fe14a5
commit d12409cffd
14 changed files with 275 additions and 141 deletions
--- a/lib_service/src/main/java/no/nordicsemi/android/service/ConnectionObserverAdapter.kt
+++ b/lib_service/src/main/java/no/nordicsemi/android/service/ConnectionObserverAdapter.kt
@@ -45,7 +45,6 @@ class ConnectionObserverAdapter<T> : ConnectionObserver {
    }

    fun setValue(value: T) {
-        Log.d("AAATESTAAA", "setValue()")
        _status.value = SuccessResult(value)
    }
 }
--- a/lib_service/src/main/java/no/nordicsemi/android/service/NotificationService.kt
+++ b/lib_service/src/main/java/no/nordicsemi/android/service/NotificationService.kt
@@ -0,0 +1,108 @@
+package no.nordicsemi.android.service
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Intent
+import android.os.Build
+import androidx.annotation.RequiresApi
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.LifecycleService
+
+private const val CHANNEL_ID = "FOREGROUND_BLE_SERVICE"
+
+abstract class NotificationService : LifecycleService() {
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        val result = super.onStartCommand(intent, flags, startId)
+        startForegroundService()
+        return result
+    }
+
+    override fun onDestroy() {
+        // when user has disconnected from the sensor, we have to cancel the notification that we've created some milliseconds before using unbindService
+        cancelNotification()
+        stopForegroundService()
+        super.onDestroy()
+    }
+
+    /**
+     * Sets the service as a foreground service
+     */
+    private fun startForegroundService() {
+        // when the activity closes we need to show the notification that user is connected to the peripheral sensor
+        // We start the service as a foreground service as Android 8.0 (Oreo) onwards kills any running background services
+        val notification = createNotification(R.string.csc_notification_connected_message, 0)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            startForeground(NOTIFICATION_ID, notification)
+        } else {
+            val nm = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+            nm.notify(NOTIFICATION_ID, notification)
+        }
+    }
+
+    /**
+     * Stops the service as a foreground service
+     */
+    private fun stopForegroundService() {
+        // when the activity rebinds to the service, remove the notification and stop the foreground service
+        // on devices running Android 8.0 (Oreo) or above
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            stopForeground(true)
+        } else {
+            cancelNotification()
+        }
+    }
+
+    /**
+     * Creates the notification
+     *
+     * @param messageResId the message resource id. The message must have one String parameter,<br></br>
+     * f.e. `<string name="name">%s is connected</string>`
+     * @param defaults
+     */
+    private fun createNotification(messageResId: Int, defaults: Int): Notification {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            createNotificationChannel(CHANNEL_ID)
+        }
+
+        val intent: Intent? = packageManager.getLaunchIntentForPackage(packageName)
+        val pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE)
+
+        return NotificationCompat.Builder(this, CHANNEL_ID)
+            .setContentTitle(getString(R.string.app_name))
+            .setContentText(getString(messageResId, "Device"))
+            .setSmallIcon(R.drawable.ic_notification_icon)
+            .setColor(ContextCompat.getColor(this, R.color.md_theme_primary))
+            .setContentIntent(pendingIntent)
+            .build()
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    private fun createNotificationChannel(channelName: String) {
+        val channel = NotificationChannel(
+            channelName,
+            getString(R.string.channel_connected_devices_title),
+            NotificationManager.IMPORTANCE_LOW
+        )
+        channel.description = getString(R.string.channel_connected_devices_description)
+        channel.setShowBadge(false)
+        channel.lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+        val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+        notificationManager.createNotificationChannel(channel)
+    }
+
+    /**
+     * Cancels the existing notification. If there is no active notification this method does nothing
+     */
+    private fun cancelNotification() {
+        val nm = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+        nm.cancel(NOTIFICATION_ID)
+    }
+
+    companion object {
+        private const val NOTIFICATION_ID = 200
+    }
+}
--- a/lib_service/src/main/java/no/nordicsemi/android/service/ServiceManager.kt
+++ b/lib_service/src/main/java/no/nordicsemi/android/service/ServiceManager.kt
@@ -1,5 +1,6 @@
 package no.nordicsemi.android.service

+import android.bluetooth.BluetoothDevice
 import android.content.Context
 import android.content.Intent
 import dagger.hilt.android.qualifiers.ApplicationContext
@@ -19,4 +20,21 @@ class ServiceManager @Inject constructor(
        }
        context.startService(intent)
    }
+
+    fun <T> startService(service: Class<T>, device: BluetoothDevice) {
+        val intent = Intent(context, service).apply {
+            putExtra(DEVICE_DATA, device)
+        }
+        context.startService(intent)
+    }
+
+    fun <T> startService(service: Class<T>) {
+        val intent = Intent(context, service)
+        context.startService(intent)
+    }
+
+    fun <T> stopService(service: Class<T>) {
+        val intent = Intent(context, service)
+        context.stopService(intent)
+    }
 }
--- a/profile_bps/src/main/java/no/nordicsemi/android/bps/data/BPSRepository.kt
+++ b/profile_bps/src/main/java/no/nordicsemi/android/bps/data/BPSRepository.kt
@@ -2,18 +2,13 @@ package no.nordicsemi.android.bps.data

 import android.bluetooth.BluetoothDevice
 import android.content.Context
-import android.util.Log
 import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.android.scopes.ViewModelScoped
-import kotlinx.coroutines.CoroutineExceptionHandler
-import kotlinx.coroutines.awaitCancellation
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
-import kotlinx.coroutines.launch
-import no.nordicsemi.android.ble.ktx.suspend
 import no.nordicsemi.android.bps.repository.BPSManager
 import no.nordicsemi.android.service.BleManagerResult
 import javax.inject.Inject
@@ -32,19 +27,13 @@ internal class BPSRepository @Inject constructor(
            trySend(it)
        }.launchIn(scope)

-        try {
        manager.connect(device)
            .useAutoConnect(false)
            .retry(3, 100)
-                .suspend()
-        } catch (e: Exception) {
-            e.printStackTrace()
-        }
+            .enqueue()

        awaitClose {
-            launch {
-                manager.disconnect().suspend()
-            }
+            manager.disconnect().enqueue()
        }
    }
 }
--- a/profile_bps/src/main/java/no/nordicsemi/android/bps/view/BPSScreen.kt
+++ b/profile_bps/src/main/java/no/nordicsemi/android/bps/view/BPSScreen.kt
@@ -1,6 +1,5 @@
 package no.nordicsemi.android.bps.view

-import android.util.Log
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
@@ -29,8 +28,6 @@ fun BPSScreen() {
            viewModel.onEvent(DisconnectEvent)
        }

-        Log.d("AAATESTAAA", "state: $state")
-
        Column(modifier = Modifier.verticalScroll(rememberScrollState())) {
            when (state) {
                NoDeviceState -> NoDeviceView()
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/data/CGMRepository.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/data/CGMRepository.kt
@@ -1,49 +1,64 @@
 package no.nordicsemi.android.cgms.data

-import kotlinx.coroutines.channels.BufferOverflow
-import kotlinx.coroutines.flow.*
-import no.nordicsemi.android.service.BleManagerStatus
+import android.bluetooth.BluetoothDevice
+import android.content.Context
+import android.util.Log
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import no.nordicsemi.android.cgms.repository.CGMManager
+import no.nordicsemi.android.cgms.repository.CGMService
+import no.nordicsemi.android.service.BleManagerResult
+import no.nordicsemi.android.service.ConnectingResult
+import no.nordicsemi.android.service.ServiceManager
+import no.nordicsemi.android.utils.exhaustive
 import javax.inject.Inject
 import javax.inject.Singleton

@Singleton
-internal class CGMRepository @Inject constructor() {
+internal class CGMRepository @Inject constructor(
+    @ApplicationContext
+    private val context: Context,
+    private val serviceManager: ServiceManager,
+) {
+    private var manager: CGMManager? = null

-    private val _data = MutableStateFlow(CGMData())
-    val data: StateFlow<CGMData> = _data.asStateFlow()
+    private val _data = MutableStateFlow<BleManagerResult<CGMData>>(ConnectingResult())
+    val data = _data.asStateFlow()

-    private val _command = MutableSharedFlow<CGMServiceCommand>(extraBufferCapacity = 1, onBufferOverflow = BufferOverflow.DROP_LATEST)
-    val command = _command.asSharedFlow()
-
-    private val _status = MutableStateFlow(BleManagerStatus.CONNECTING)
-    val status = _status.asStateFlow()
-
-    fun emitNewBatteryLevel(batterLevel: Int) {
-        _data.tryEmit(_data.value.copy(batteryLevel = batterLevel))
+    fun launch(device: BluetoothDevice) {
+        serviceManager.startService(CGMService::class.java, device)
    }

-    fun emitNewRecords(records: List<CGMRecord>) {
-        _data.tryEmit(_data.value.copy(records = records))
-    }
+    fun startManager(device: BluetoothDevice, scope: CoroutineScope) {
+        val manager = CGMManager(context, scope)

-    fun setRequestStatus(requestStatus: RequestStatus) {
-        _data.tryEmit(_data.value.copy(requestStatus = requestStatus))
+        manager.dataHolder.status.onEach {
+            _data.value = it
+            Log.d("AAATESTAAA", "data: $it")
+        }.launchIn(scope)
+
+        manager.connect(device)
+            .useAutoConnect(false)
+            .retry(3, 100)
+            .enqueue()
    }

    fun sendNewServiceCommand(workingMode: CGMServiceCommand) {
-        if (_command.subscriptionCount.value > 0) {
-            _command.tryEmit(workingMode)
-        } else {
-            _status.tryEmit(BleManagerStatus.DISCONNECTED)
-        }
+        when (workingMode) {
+            CGMServiceCommand.REQUEST_ALL_RECORDS -> manager?.requestAllRecords()
+            CGMServiceCommand.REQUEST_LAST_RECORD -> manager?.requestLastRecord()
+            CGMServiceCommand.REQUEST_FIRST_RECORD -> manager?.requestFirstRecord()
+            CGMServiceCommand.DISCONNECT -> release()
+        }.exhaustive
    }

-    fun setNewStatus(status: BleManagerStatus) {
-        _status.value = status
-    }
-
-    fun clear() {
-        _status.value = BleManagerStatus.CONNECTING
-        _data.tryEmit(CGMData())
+    private fun release() {
+        serviceManager.stopService(CGMService::class.java)
+        manager?.disconnect()?.enqueue()
+        manager = null
    }
 }
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/repository/CGMManager.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/repository/CGMManager.kt
@@ -26,11 +26,11 @@ import android.bluetooth.BluetoothGattCharacteristic
 import android.content.Context
 import android.util.Log
 import android.util.SparseArray
-import kotlinx.coroutines.CoroutineExceptionHandler
-import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
-import kotlinx.coroutines.launch
+import no.nordicsemi.android.ble.BleManager
 import no.nordicsemi.android.ble.common.callback.RecordAccessControlPointResponse
 import no.nordicsemi.android.ble.common.callback.cgm.CGMFeatureResponse
 import no.nordicsemi.android.ble.common.callback.cgm.CGMSpecificOpsControlPointResponse
@@ -43,10 +43,10 @@ import no.nordicsemi.android.ble.common.profile.cgm.CGMSpecificOpsControlPointCa
 import no.nordicsemi.android.ble.ktx.asValidResponseFlow
 import no.nordicsemi.android.ble.ktx.suspend
 import no.nordicsemi.android.ble.ktx.suspendForValidResponse
+import no.nordicsemi.android.cgms.data.CGMData
 import no.nordicsemi.android.cgms.data.CGMRecord
-import no.nordicsemi.android.cgms.data.CGMRepository
 import no.nordicsemi.android.cgms.data.RequestStatus
-import no.nordicsemi.android.service.BatteryManager
+import no.nordicsemi.android.service.ConnectionObserverAdapter
 import java.util.*

 val CGMS_SERVICE_UUID: UUID = UUID.fromString("0000181F-0000-1000-8000-00805f9b34fb")
@@ -57,11 +57,13 @@ private val CGM_OPS_CONTROL_POINT_UUID = UUID.fromString("00002AAC-0000-1000-800

 private val RACP_UUID = UUID.fromString("00002A52-0000-1000-8000-00805f9b34fb")

+private val BATTERY_SERVICE_UUID = UUID.fromString("0000180F-0000-1000-8000-00805f9b34fb")
+private val BATTERY_LEVEL_CHARACTERISTIC_UUID = UUID.fromString("00002A19-0000-1000-8000-00805f9b34fb")
+
 internal class CGMManager(
    context: Context,
-    scope: CoroutineScope,
-    private val repository: CGMRepository
-) : BatteryManager(context, scope) {
+    private val scope: CoroutineScope
+) : BleManager(context) {

    private var cgmStatusCharacteristic: BluetoothGattCharacteristic? = null
    private var cgmFeatureCharacteristic: BluetoothGattCharacteristic? = null
@@ -69,6 +71,7 @@ internal class CGMManager(
    private var cgmSpecificOpsControlPointCharacteristic: BluetoothGattCharacteristic? = null
    private var recordAccessControlPointCharacteristic: BluetoothGattCharacteristic? = null
    private val records: SparseArray<CGMRecord> = SparseArray<CGMRecord>()
+    private var batteryLevelCharacteristic: BluetoothGattCharacteristic? = null

    private var secured = false

@@ -80,15 +83,22 @@ internal class CGMManager(
        Log.e("COROUTINE-EXCEPTION", "Uncaught exception", t)
    }

-    override fun onBatteryLevelChanged(batteryLevel: Int) {
-        repository.emitNewBatteryLevel(batteryLevel)
+    private val data = MutableStateFlow(CGMData())
+    val dataHolder = ConnectionObserverAdapter<CGMData>()
+
+    init {
+        setConnectionObserver(dataHolder)
+
+        data.onEach {
+            dataHolder.setValue(it)
+        }.launchIn(scope)
    }

-    override fun getGattCallback(): BatteryManagerGattCallback {
+    override fun getGattCallback(): BleManagerGattCallback {
        return CGMManagerGattCallback()
    }

-    private inner class CGMManagerGattCallback : BatteryManagerGattCallback() {
+    private inner class CGMManagerGattCallback : BleManagerGattCallback() {
        override fun initialize() {
            super.initialize()

@@ -98,6 +108,12 @@ internal class CGMManager(
                this@CGMManager.secured = response.features.e2eCrcSupported
            }

+            scope.launch(exceptionHandler) {
+                val response =
+                    readCharacteristic(cgmFeatureCharacteristic).suspendForValidResponse<CGMFeatureResponse>()
+                this@CGMManager.secured = response.features.e2eCrcSupported
+            }
+
            scope.launch(exceptionHandler) {
                val response =
                    readCharacteristic(cgmStatusCharacteristic).suspendForValidResponse<CGMStatusResponse>()
@@ -115,7 +131,8 @@ internal class CGMManager(
                    val timestamp = sessionStartTime + it.timeOffset * 60000L
                    val record = CGMRecord(it.timeOffset, it.glucoseConcentration, timestamp)
                    records.put(record.sequenceNumber, record)
-                    repository.emitNewRecords(records.toList())
+
+                    data.value = data.value.copy(records = records.toList())
                }.launchIn(scope)

            setIndicationCallback(cgmSpecificOpsControlPointCharacteristic).asValidResponseFlow<CGMSpecificOpsControlPointResponse>()
@@ -152,15 +169,10 @@ internal class CGMManager(
                    }
                }.launchIn(scope)

-            scope.launch(exceptionHandler) {
-                enableNotifications(cgmMeasurementCharacteristic).suspend()
-            }
-            scope.launch(exceptionHandler) {
-                enableIndications(cgmSpecificOpsControlPointCharacteristic).suspend()
-            }
-            scope.launch(exceptionHandler) {
-                enableIndications(recordAccessControlPointCharacteristic).suspend()
-            }
+            enableNotifications(cgmMeasurementCharacteristic).enqueue()
+            enableIndications(cgmSpecificOpsControlPointCharacteristic).enqueue()
+            enableIndications(recordAccessControlPointCharacteristic).enqueue()
+            enableNotifications(batteryLevelCharacteristic).enqueue()

            if (sessionStartTime == 0L) {
                scope.launch(exceptionHandler) {
@@ -179,9 +191,7 @@ internal class CGMManager(
                    val sequenceNumber = records.keyAt(records.size() - 1) + 1
                    writeCharacteristic(
                        recordAccessControlPointCharacteristic,
-                        RecordAccessControlPointData.reportStoredRecordsGreaterThenOrEqualTo(
-                            sequenceNumber
-                        ),
+                        RecordAccessControlPointData.reportStoredRecordsGreaterThenOrEqualTo(sequenceNumber),
                        BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT
                    ).suspend()
                } else {
@@ -193,32 +203,31 @@ internal class CGMManager(
                }
            } else {
                recordAccessRequestInProgress = false
-                repository.setRequestStatus(RequestStatus.SUCCESS)
+                data.value = data.value.copy(requestStatus = RequestStatus.SUCCESS)
            }
        }

        private fun onNoRecordsFound() {
            recordAccessRequestInProgress = false
-            repository.setRequestStatus(RequestStatus.SUCCESS)
+            data.value = data.value.copy(requestStatus = RequestStatus.SUCCESS)
        }

        private fun onOperationCompleted(response: RecordAccessControlPointResponse) {
            when (response.requestCode) {
-                RecordAccessControlPointCallback.RACP_OP_CODE_ABORT_OPERATION -> repository.setRequestStatus(
-                    RequestStatus.ABORTED
-                )
+                RecordAccessControlPointCallback.RACP_OP_CODE_ABORT_OPERATION ->
+                    data.value = data.value.copy(requestStatus = RequestStatus.ABORTED)
                else -> {
                    recordAccessRequestInProgress = false
-                    repository.setRequestStatus(RequestStatus.SUCCESS)
+                    data.value = data.value.copy(requestStatus = RequestStatus.SUCCESS)
                }
            }
        }

        private fun onError(response: RecordAccessControlPointResponse) {
            if (response.errorCode == RecordAccessControlPointCallback.RACP_ERROR_OP_CODE_NOT_SUPPORTED) {
-                repository.setRequestStatus(RequestStatus.NOT_SUPPORTED)
+                data.value = data.value.copy(requestStatus = RequestStatus.NOT_SUPPORTED)
            } else {
-                repository.setRequestStatus(RequestStatus.FAILED)
+                data.value = data.value.copy(requestStatus = RequestStatus.FAILED)
            }
        }

@@ -255,7 +264,7 @@ internal class CGMManager(
    fun requestLastRecord() {
        if (recordAccessControlPointCharacteristic == null) return
        clear()
-        repository.setRequestStatus(RequestStatus.PENDING)
+        data.value = data.value.copy(requestStatus = RequestStatus.PENDING)
        recordAccessRequestInProgress = true
        scope.launch(exceptionHandler) {
            writeCharacteristic(
@@ -269,7 +278,7 @@ internal class CGMManager(
    fun requestFirstRecord() {
        if (recordAccessControlPointCharacteristic == null) return
        clear()
-        repository.setRequestStatus(RequestStatus.PENDING)
+        data.value = data.value.copy(requestStatus = RequestStatus.PENDING)
        recordAccessRequestInProgress = true
        scope.launch(exceptionHandler) {
            writeCharacteristic(
@@ -283,7 +292,7 @@ internal class CGMManager(
    fun requestAllRecords() {
        if (recordAccessControlPointCharacteristic == null) return
        clear()
-        repository.setRequestStatus(RequestStatus.PENDING)
+        data.value = data.value.copy(requestStatus = RequestStatus.PENDING)
        recordAccessRequestInProgress = true
        scope.launch(exceptionHandler) {
            writeCharacteristic(
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/repository/CGMService.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/repository/CGMService.kt
@@ -1,38 +1,27 @@
 package no.nordicsemi.android.cgms.repository

+import android.bluetooth.BluetoothDevice
+import android.content.Intent
+import androidx.lifecycle.lifecycleScope
 import dagger.hilt.android.AndroidEntryPoint
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
 import no.nordicsemi.android.cgms.data.CGMRepository
-import no.nordicsemi.android.cgms.data.CGMServiceCommand
-import no.nordicsemi.android.service.ForegroundBleService
-import no.nordicsemi.android.utils.exhaustive
+import no.nordicsemi.android.service.DEVICE_DATA
+import no.nordicsemi.android.service.NotificationService
 import javax.inject.Inject

@AndroidEntryPoint
-internal class CGMService : ForegroundBleService() {
+internal class CGMService : NotificationService() {

    @Inject
    lateinit var repository: CGMRepository

-    override val manager: CGMManager by lazy { CGMManager(this, scope, repository) }
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        super.onStartCommand(intent, flags, startId)

-    override fun onCreate() {
-        super.onCreate()
+        val device = intent!!.getParcelableExtra<BluetoothDevice>(DEVICE_DATA)!!

-//        status.onEach {
-//            val status = it.mapToSimpleManagerStatus()
-//            repository.setNewStatus(status)
-//            stopIfDisconnected(status)
-//        }.launchIn(scope)
+        repository.startManager(device, lifecycleScope)

-        repository.command.onEach {
-            when (it) {
-                CGMServiceCommand.REQUEST_ALL_RECORDS -> manager.requestAllRecords()
-                CGMServiceCommand.REQUEST_LAST_RECORD -> manager.requestLastRecord()
-                CGMServiceCommand.REQUEST_FIRST_RECORD -> manager.requestFirstRecord()
-                CGMServiceCommand.DISCONNECT -> stopSelf()
-            }.exhaustive
-        }.launchIn(scope)
+        return START_REDELIVER_INTENT
    }
 }
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMScreen.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMScreen.kt
@@ -10,7 +10,13 @@ import androidx.compose.ui.res.stringResource
 import androidx.hilt.navigation.compose.hiltViewModel
 import no.nordicsemi.android.cgms.R
 import no.nordicsemi.android.cgms.viewmodel.CGMScreenViewModel
+import no.nordicsemi.android.service.*
 import no.nordicsemi.android.theme.view.BackIconAppBar
+import no.nordicsemi.android.theme.view.scanner.DeviceConnectingView
+import no.nordicsemi.android.theme.view.scanner.DeviceDisconnectedView
+import no.nordicsemi.android.theme.view.scanner.NoDeviceView
+import no.nordicsemi.android.theme.view.scanner.Reason
+import no.nordicsemi.android.utils.exhaustive

@Composable
 fun CGMScreen() {
@@ -23,10 +29,17 @@ fun CGMScreen() {
        }

        Column(modifier = Modifier.verticalScroll(rememberScrollState())) {
-//            when (state) {
-//                is DisplayDataState -> CGMContentView(state.data) { viewModel.onEvent(it) }
-//                LoadingState -> DeviceConnectingView()
-//            }.exhaustive
+            when (state) {
+                NoDeviceState -> NoDeviceView()
+                is WorkingState -> when (state.result) {
+                    is ConnectingResult -> DeviceConnectingView()
+                    is DisconnectedResult -> DeviceDisconnectedView(Reason.USER)
+                    is LinkLossResult -> DeviceDisconnectedView(Reason.LINK_LOSS)
+                    is MissingServiceResult -> DeviceDisconnectedView(Reason.MISSING_SERVICE)
+                    is ReadyResult -> DeviceConnectingView()
+                    is SuccessResult -> CGMContentView(state.result.data) { viewModel.onEvent(it) }
+                }
+            }.exhaustive
        }
    }
 }
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMViewEvent.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMViewEvent.kt
@@ -6,4 +6,6 @@ internal sealed class CGMViewEvent

 internal data class OnWorkingModeSelected(val workingMode: CGMServiceCommand) : CGMViewEvent()

+internal object NavigateUp : CGMViewEvent()
+
 internal object DisconnectEvent : CGMViewEvent()
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMViewState.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/view/CGMViewState.kt
@@ -1,9 +1,9 @@
 package no.nordicsemi.android.cgms.view

 import no.nordicsemi.android.cgms.data.CGMData
+import no.nordicsemi.android.service.BleManagerResult

-internal sealed class CGMViewState
+internal sealed class BPSViewState

-internal object LoadingState : CGMViewState()
-
-internal data class DisplayDataState(val data: CGMData) : CGMViewState()
+internal data class WorkingState(val result: BleManagerResult<CGMData>) : BPSViewState()
+internal object NoDeviceState : BPSViewState()
--- a/profile_cgms/src/main/java/no/nordicsemi/android/cgms/viewmodel/CGMScreenViewModel.kt
+++ b/profile_cgms/src/main/java/no/nordicsemi/android/cgms/viewmodel/CGMScreenViewModel.kt
@@ -1,36 +1,32 @@
 package no.nordicsemi.android.cgms.viewmodel

+import android.util.Log
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
-import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
 import no.nordicsemi.android.cgms.data.CGMRepository
 import no.nordicsemi.android.cgms.data.CGMServiceCommand
 import no.nordicsemi.android.cgms.repository.CGMS_SERVICE_UUID
-import no.nordicsemi.android.cgms.repository.CGMService
 import no.nordicsemi.android.cgms.view.*
 import no.nordicsemi.android.navigation.*
-import no.nordicsemi.android.service.BleManagerStatus
-import no.nordicsemi.android.service.ServiceManager
 import no.nordicsemi.android.utils.exhaustive
 import no.nordicsemi.android.utils.getDevice
+import no.nordicsemi.ui.scanner.DiscoveredBluetoothDevice
 import no.nordicsemi.ui.scanner.ScannerDestinationId
 import javax.inject.Inject

@HiltViewModel
 internal class CGMScreenViewModel @Inject constructor(
    private val repository: CGMRepository,
-    private val serviceManager: ServiceManager,
    private val navigationManager: NavigationManager
 ) : ViewModel() {

-    val state = repository.data.combine(repository.status) { data, status ->
-//        when (status) {
-//            BleManagerStatus.CONNECTING -> LoadingState
-//            BleManagerStatus.OK,
-//            BleManagerStatus.DISCONNECTED -> DisplayDataState(data)
-//        }
-    }.stateIn(viewModelScope, SharingStarted.Lazily, LoadingState)
+    private val _state = MutableStateFlow<BPSViewState>(NoDeviceState)
+    val state = _state.asStateFlow()

    init {
        navigationManager.navigateTo(ScannerDestinationId, UUIDArgument(CGMS_SERVICE_UUID))
@@ -41,17 +37,16 @@ internal class CGMScreenViewModel @Inject constructor(
            }
        }.launchIn(viewModelScope)

-        repository.status.onEach {
-            if (it == BleManagerStatus.DISCONNECTED) {
-                navigationManager.navigateUp()
-            }
+        repository.data.onEach {
+            _state.value = WorkingState(it)
+            Log.d("AAATESTAAA", "vm data: $it")
        }.launchIn(viewModelScope)
    }

    private fun handleArgs(args: DestinationResult) {
        when (args) {
            is CancelDestinationResult -> navigationManager.navigateUp()
-            is SuccessDestinationResult -> serviceManager.startService(CGMService::class.java, args.getDevice())
+            is SuccessDestinationResult -> connectDevice(args.getDevice())
        }.exhaustive
    }

@@ -59,16 +54,15 @@ internal class CGMScreenViewModel @Inject constructor(
        when (event) {
            DisconnectEvent -> disconnect()
            is OnWorkingModeSelected -> repository.sendNewServiceCommand(event.workingMode)
+            NavigateUp -> navigationManager.navigateUp()
        }.exhaustive
    }

+    private fun connectDevice(deviceHolder: DiscoveredBluetoothDevice) {
+        repository.launch(deviceHolder.device)
+    }
+
    private fun disconnect() {
        repository.sendNewServiceCommand(CGMServiceCommand.DISCONNECT)
-        repository.clear()
-    }
-
-    override fun onCleared() {
-        super.onCleared()
-        repository.clear()
    }
 }
--- a/profile_hrs/src/main/java/no/nordicsemi/android/hrs/view/HRSScreen.kt
+++ b/profile_hrs/src/main/java/no/nordicsemi/android/hrs/view/HRSScreen.kt
@@ -4,6 +4,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
--- a/settings.gradle
+++ b/settings.gradle
@@ -37,7 +37,7 @@ dependencyResolutionManagement {
            alias('compose-activity').to('androidx.activity:activity-compose:1.4.0')
            alias('compose-lifecycle').to('androidx.lifecycle:lifecycle-viewmodel-compose:2.4.0')

-            version('compose', '1.0.5')
+            version('compose', '1.1.0')
            alias('compose-livedata').to('androidx.compose.runtime', 'runtime-livedata').versionRef('compose')
            alias('compose-ui').to('androidx.compose.ui', 'ui').versionRef('compose')
            alias('compose-material').to('androidx.compose.material3:material3:1.0.0-alpha04')