init

2023-09-23 19:09:54 +02:00
commit 09b3ec6d68
41 changed files with 1661 additions and 0 deletions
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -0,0 +1,44 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.example.oilcheckkotlin"
+        minSdk 28
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'com.google.android.material:material:1.9.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    implementation 'com.luckycatlabs:SunriseSunsetCalculator:1.2'
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/example/oilcheckkotlin/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/example/oilcheckkotlin/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.example.oilcheckkotlin
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.oilcheckkotlin", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.oilcheckkotlin">
+
+    <!--    for Android below 12 start -->
+    <uses-permission android:name="android.permission.BLUETOOTH"
+        android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
+        android:maxSdkVersion="30" />
+    <!--    for Android below 12 end -->
+
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
+    <!--        android:icon="@mipmap/ic_launcher"-->
+<!--    android:roundIcon="@mipmap/ic_launcher_round"-->
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/draw_icon_blue"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.OilCheckKotlin">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <service android:name=".BLEConnectionService"></service>
+        <service android:name=".NLService"
+            android:exported="true"
+            android:enabled="true"
+            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE" >
+            <intent-filter>
+                <action android:name="android.service.notification.NotificationListenerService" />
+            </intent-filter>
+        </service>
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/example/oilcheckkotlin/BLEConnectionService.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/BLEConnectionService.kt
@@ -0,0 +1,209 @@
+package com.example.oilcheckkotlin
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.app.Service
+import android.content.Context
+import android.content.Intent
+import android.graphics.Color
+import android.location.LocationManager
+import android.os.Build
+import android.os.IBinder
+import android.util.Log
+import androidx.annotation.RequiresApi
+import androidx.core.location.LocationManagerCompat
+
+class BLEConnectionService : Service() {
+    val CHANNEL_DEFAULT_IMPORTANCE = "1"
+    val ONGOING_NOTIFICATION_ID = 2
+    var bleController: BLEController? = null
+    var deviceAddress: String? = null
+    var nlService = NLService()
+    private val myThread = Thread {
+        while (true){
+            Log.d("Runnable", "Working")
+            if(bleController == null) {
+
+                val lm = getSystemService(Context.LOCATION_SERVICE) as LocationManager
+                if (!LocationManagerCompat.isLocationEnabled(lm)) {
+                    // Start Location Settings Activity, you should explain to the user why he need to enable location before.
+                    startActivity(Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS))
+                }
+                Log.d("Debug", "bleController null")
+//                bleController = BLEController.getInstance(applicationContext)
+                bleController = BLEController(applicationContext)
+
+            } else if(!bleController!!.isConnected()){
+                // not connected
+                Log.d("Debug", "bleController not null but not connected")
+                bleController!!.init()
+                Log.d("Debug", "tried to init ble controller")
+            } else{
+                // controller is connected
+                Log.d("Debug", "BLE device connected")
+                bleController!!.stopScanner()
+
+
+            }
+            Thread.sleep(12000)
+        }
+    }
+    override fun onCreate() {
+        super.onCreate()
+
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+
+        if(intent?.action.equals("STARTService")){
+            Log.d("DEBUG", "Startflag set")
+            myThread.start()
+
+            // setup ble connection
+            val channel_id =
+                if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
+                    createNotificationChannel("my_service", "My Background Service")
+                } else {
+                    ""
+                }
+
+            val serviceIntent: PendingIntent = Intent(this, BLEConnectionService::class.java).let { notificationIntent ->
+                PendingIntent.getActivity(this, 0, notificationIntent,
+                    PendingIntent.FLAG_IMMUTABLE)
+            }
+            val myIntent = Intent(this, MainActivity::class.java).apply {
+                var flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+            }
+
+            val contentIntent: PendingIntent = PendingIntent.getActivity(this, 0, myIntent, PendingIntent.FLAG_IMMUTABLE)
+            val notification: Notification = Notification.Builder(this, channel_id)
+                .setContentTitle("Oil-Check")
+                .setContentText("running")
+                .setSmallIcon(R.drawable.icon)
+                .setContentIntent(serviceIntent)
+//            .setTicker(getText(R.string.ticker_text))
+                .build()
+
+            startForeground(101, notification)
+
+//            startService(Intent(this, NLService::class.java)
+//                .setAction("StartNLService")
+//            )
+
+
+            val nlServiceIntent: PendingIntent = Intent(this, NLService::class.java).let { notificationIntent ->
+                PendingIntent.getActivity(this, 0, notificationIntent,
+                    PendingIntent.FLAG_IMMUTABLE)
+            }
+
+            val nlNotification: Notification = Notification.Builder(this, channel_id)
+                .setContentTitle("Oil-Check")
+                .setContentText("running")
+                .setSmallIcon(R.drawable.icon)
+                .setContentIntent(nlServiceIntent)
+//            .setTicker(getText(R.string.ticker_text))
+                .build()
+            startForeground(101, nlNotification)
+
+
+
+
+            // setup notification listener
+//            val nlServiceIntent: PendingIntent = Intent(this, NLService::class.java).let { notificationIntent ->
+//                PendingIntent.getActivity(this, 0, notificationIntent,
+//                    PendingIntent.FLAG_IMMUTABLE)
+//            }
+//
+//            val nlNotification: Notification = Notification.Builder(this, channel_id)
+//                .setContentTitle("Oil-Check")
+//                .setContentText("running")
+//                .setSmallIcon(R.drawable.icon)
+//                .setContentIntent(nlServiceIntent)
+////            .setTicker(getText(R.string.ticker_text))
+//                .build()
+//            startForeground(101, nlNotification)
+
+
+        } else if (intent?.action.equals("STOPService")){
+            Log.d("DEBUG", "Stopflag set")
+            stopForeground(true)
+            stopSelfResult(101)
+            stopSelf()
+
+        } else if (intent?.action.equals("StartNLService")) {
+            //
+        }
+        else if(intent?.action.equals("Toggle")){
+            try {
+                bleController!!.sendData("X".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "tried to toggle, but failed")
+            }
+        } else if(intent?.action.equals("X")){
+            try {
+                bleController!!.sendData("X".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "Tried to send X, but connection failed")
+            }
+        } else if(intent?.action.equals("XX")){
+            try {
+                bleController!!.sendData("XX".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "Tried to send XX, but connection failed")
+            }
+        } else if(intent?.action.equals("XXX")){
+            try {
+                bleController!!.sendData("XXX".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "Tried to send XXX, but connection failed")
+            }
+        } else if(intent?.action.equals("XXXX")){
+            try {
+                bleController!!.sendData("XXXX".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "Tried to send XXXX, but connection failed")
+            }
+        } else if(intent?.action.equals("OTA")) {
+            try {
+                bleController!!.sendData("U".toByteArray(Charsets.UTF_8))
+            }
+            catch (e: Exception){
+                Log.d("Debug", "Tried to update firmware, but connection failed")
+            }
+        }
+        else{
+            Log.d("Debug", "Intent without arguments occured in service")
+        }
+
+
+        return START_STICKY
+    }
+    @RequiresApi(Build.VERSION_CODES.O)
+    private fun createNotificationChannel(channelId: String, channelName: String): String{
+        val chan = NotificationChannel(channelId,
+            channelName, NotificationManager.IMPORTANCE_NONE)
+        chan.lightColor = Color.BLUE
+        chan.lockscreenVisibility = Notification.VISIBILITY_PRIVATE
+        val service = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+        service.createNotificationChannel(chan)
+        return channelId
+    }
+    override fun onBind(p0: Intent?): IBinder? {
+//        TODO("Not yet implemented")
+        return null;
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        this.myThread.interrupt()
+
+    }
+
+}
--- a/app/src/main/java/com/example/oilcheckkotlin/BLEController.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/BLEController.kt
@@ -0,0 +1,338 @@
+package com.example.oilcheckkotlin
+
+import android.Manifest
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothGatt
+import android.bluetooth.BluetoothGattCallback
+import android.bluetooth.BluetoothGattCharacteristic
+import android.bluetooth.BluetoothManager
+import android.bluetooth.BluetoothProfile
+import android.bluetooth.le.BluetoothLeScanner
+import android.bluetooth.le.ScanCallback
+import android.bluetooth.le.ScanResult
+import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
+import android.util.Log
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.app.ActivityCompat
+import java.util.Locale
+
+class BLEController(ctx: Context) : BLEControllerListener{
+    companion object{
+        var instance: BLEController? = null
+        fun getInstance(ctx: Context?): BLEController? {
+            Log.d("BLEController", "called")
+            if (null == instance){
+                instance = BLEController(ctx!!)
+            }
+            return instance
+        }
+    }
+    private val SCAN_PERIOD: Long = 10000
+
+    private var deviceAddress: String? = null
+
+    var ctx: Context
+    private var devices = hashMapOf<String, BluetoothDevice>()
+    private var scanner: BluetoothLeScanner? = null
+    var bluetoothManager: BluetoothManager? = null
+    private var btGattChar: BluetoothGattCharacteristic? = null
+    private lateinit var bluetoothGatt: BluetoothGatt
+    private var device: BluetoothDevice? = null
+    private val listeners: ArrayList<BLEControllerListener> = ArrayList<BLEControllerListener>()
+    private var connectionState = false
+
+    fun stopScanner(){
+        if (ActivityCompat.checkSelfPermission(
+                ctx,
+                Manifest.permission.BLUETOOTH_SCAN
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            // TODO: Consider calling
+            //    ActivityCompat#requestPermissions
+            // here to request the missing permissions, and then overriding
+            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            //                                          int[] grantResults)
+            // to handle the case where the user grants the permission. See the documentation
+            // for ActivityCompat#requestPermissions for more details.
+            return
+        }
+        try {
+            scanner!!.stopScan(bleCallback)
+        }
+        catch (e: Exception){
+            Log.d("Debug", "Scanner seems to run, stopping")
+        }
+    }
+
+    // constructor
+    init  {
+        Log.d("Debug", "constructor called")
+        this.bluetoothManager = ctx.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
+        this.ctx = ctx
+    }
+
+    fun init(){
+        Log.d("Debug", "init")
+        this.devices?.clear()
+        Log.d("Debug", "get scanner")
+        this.scanner = this.bluetoothManager?.adapter?.bluetoothLeScanner
+        Log.d("Debug", "got scanner")
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            if (ActivityCompat.checkSelfPermission(
+                    ctx,
+                    Manifest.permission.BLUETOOTH_SCAN
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+//            val enableBtIntent = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
+//            requestBluetooth.launch(enableBtIntent)
+                Log.d("Debug", "permission needed")
+                // TODO: Consider calling
+                //    ActivityCompat#requestPermissions
+                // here to request the missing permissions, and then overriding
+                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                //                                          int[] grantResults)
+                // to handle the case where the user grants the permission. See the documentation
+                // for ActivityCompat#requestPermissions for more details.
+                return
+            } else{
+                Log.d("Debug", "permission granted")
+            }
+        }
+
+        Log.d("Debug", "try to scan")
+
+        this.scanner?.startScan(bleCallback)
+
+    }
+    var bleCallback = object: ScanCallback(){
+
+        override fun onScanResult(callbackType: Int, result: ScanResult?) {
+//            Log.d("Debug", "onScanResult called")
+            val device = result?.device
+//            Log.d("Debug", "device result exists")
+            if (!devices?.containsKey(device?.address)!! && isThisTheDevice(device)) {
+                Log.d("Debug", "found the device")
+                deviceFound(device!!)
+                Log.d("Debug", device.address)
+
+
+            }
+        }
+
+        override fun onBatchScanResults(results: List<ScanResult?>?) {
+            Log.d("Debug", "onBatchScanResults called")
+            for (sr in results!!) {
+                val device = sr?.device
+                if (!devices!!.containsKey(device!!.address) && isThisTheDevice(device)) {
+                    deviceFound(device!!)
+                }
+            }
+        }
+
+        override fun onScanFailed(errorCode: Int) {
+            Log.i("[BLE]", "scan failed with errorcode: $errorCode")
+        }
+    }
+    private fun isThisTheDevice(device: BluetoothDevice?): Boolean {
+        try {
+            if (ActivityCompat.checkSelfPermission(
+                    ctx,
+                    Manifest.permission.BLUETOOTH_CONNECT
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                // TODO: Consider calling
+                //    ActivityCompat#requestPermissions
+                // here to request the missing permissions, and then overriding
+                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                //                                          int[] grantResults)
+                // to handle the case where the user grants the permission. See the documentation
+                // for ActivityCompat#requestPermissions for more details.
+                return false
+            }
+            Log.d("BLE", device!!.name)
+        } catch (e: Exception) {
+            Log.d("BLE", "Device with null-Name found")
+        }
+        return null != device!!.name && device.name.startsWith("OilCheck")
+    }
+    private fun deviceFound(device: BluetoothDevice) {
+        Log.d("Debug", "deviceFound called")
+//        connectToDevice(device.address)
+        devices.put(device.address, device)
+        fireDeviceFound(device)
+        if (ActivityCompat.checkSelfPermission(
+                ctx,
+                Manifest.permission.BLUETOOTH_SCAN
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            // TODO: Consider calling
+            //    ActivityCompat#requestPermissions
+            // here to request the missing permissions, and then overriding
+            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            //                                          int[] grantResults)
+            // to handle the case where the user grants the permission. See the documentation
+            // for ActivityCompat#requestPermissions for more details.
+            return
+        }
+        scanner!!.stopScan(bleCallback)
+    }
+    private fun fireDeviceFound(device: BluetoothDevice) {
+//        for (l in listeners) {
+            if (ActivityCompat.checkSelfPermission(
+                    ctx,
+                    Manifest.permission.BLUETOOTH_CONNECT
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                // TODO: Consider calling
+                //    ActivityCompat#requestPermissions
+                // here to request the missing permissions, and then overriding
+                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                //                                          int[] grantResults)
+                // to handle the case where the user grants the permission. See the documentation
+                // for ActivityCompat#requestPermissions for more details.
+                return
+            }
+            Log.d("Debug", "BLEDeviceFound called")
+            BLEDeviceFound(device.name.trim { it <= ' ' }, device.address)
+//        }
+    }
+    fun connectToDevice(address: String?) {
+        Log.d("Debug", "connectToDevice")
+        this.device = devices[address!!]
+        if (ActivityCompat.checkSelfPermission(
+                ctx,
+                Manifest.permission.BLUETOOTH_SCAN
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            // TODO: Consider calling
+            //    ActivityCompat#requestPermissions
+            // here to request the missing permissions, and then overriding
+            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            //                                          int[] grantResults)
+            // to handle the case where the user grants the permission. See the documentation
+            // for ActivityCompat#requestPermissions for more details.
+            return
+        }
+        scanner!!.stopScan(bleCallback)
+        try {
+            Log.i("[BLE]", "connect to device " + device!!.getAddress())
+        } catch (e: java.lang.Exception) {
+            Log.d("Debug", "Connection to device failed :(")
+        }
+        this.bluetoothGatt = device!!.connectGatt(null, true, this.bleConnectCallback)
+    }
+
+    private val bleConnectCallback: BluetoothGattCallback = object : BluetoothGattCallback() {
+        val CHANNEL_ID = "ForegroundServiceChannel"
+        override fun onConnectionStateChange(gatt: BluetoothGatt, status: Int, newState: Int) {
+            if (newState == BluetoothProfile.STATE_CONNECTED) {
+                connectionState = true
+                Log.d("Debug", "connection state changed to connected")
+
+                if (ActivityCompat.checkSelfPermission(
+                        ctx,
+                        Manifest.permission.BLUETOOTH_CONNECT
+                    ) != PackageManager.PERMISSION_GRANTED
+                ) {
+                    // TODO: Consider calling
+                    //    ActivityCompat#requestPermissions
+                    // here to request the missing permissions, and then overriding
+                    //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                    //                                          int[] grantResults)
+                    // to handle the case where the user grants the permission. See the documentation
+                    // for ActivityCompat#requestPermissions for more details.
+                    return
+                }
+                Log.i("[BLE]", "start service discovery " + bluetoothGatt.discoverServices())
+            } else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
+                connectionState = false
+
+                Log.d("Debug", "connection state changed to not connected")
+                btGattChar = null
+                Log.w("[BLE]", "DISCONNECTED with status $status")
+                fireDisconnected()
+            } else {
+                Log.i("[BLE]", "unknown state $newState and status $status")
+            }
+        }
+
+        override fun onServicesDiscovered(gatt: BluetoothGatt, status: Int) {
+            if (null == btGattChar) {
+                for (service in gatt.services) {
+                    if (service.uuid.toString().uppercase(Locale.getDefault())
+                            .startsWith("00001811")
+                    ) {
+                        val gattCharacteristics = service.characteristics
+                        for (bgc in gattCharacteristics) {
+                            if (bgc.uuid.toString().uppercase(Locale.getDefault())
+                                    .startsWith("00002A46")
+                            ) {
+                                val chprop = bgc.properties
+                                if (chprop and BluetoothGattCharacteristic.PROPERTY_WRITE or (chprop and BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) > 0) {
+                                    btGattChar = bgc
+                                    Log.i("[BLE]", "CONNECTED and ready to send")
+                                    fireConnected()
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    private fun fireDisconnected() {
+        for (l in listeners){
+            l.BLEControllerDisconnected()
+        }
+        device = null
+    }
+    fun isConnected():Boolean {
+         if(!connectionState){
+             return false
+        }
+        return true
+    }
+    fun sendData(data: ByteArray?) {
+        btGattChar!!.value = data
+        if (ActivityCompat.checkSelfPermission(
+                ctx,
+                Manifest.permission.BLUETOOTH_CONNECT
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            // TODO: Consider calling
+            //    ActivityCompat#requestPermissions
+            // here to request the missing permissions, and then overriding
+            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            //                                          int[] grantResults)
+            // to handle the case where the user grants the permission. See the documentation
+            // for ActivityCompat#requestPermissions for more details.
+            return
+        }
+        bluetoothGatt.writeCharacteristic(btGattChar)
+    }
+    private fun fireConnected() {
+        for (l in listeners) {
+            l.BLEControllerConnected()
+        }
+    }
+
+    override fun BLEControllerConnected() {
+        TODO("Not yet implemented")
+    }
+
+    override fun BLEControllerDisconnected() {
+        TODO("Not yet implemented")
+    }
+
+    override fun BLEDeviceFound(name: String?, address: String?) {
+//        log("Device $name found with address $address")
+        deviceAddress = address
+        Log.d("Debug", "connectToDevice called")
+//        btnConnect.setEnabled(true)
+        connectToDevice(deviceAddress)
+    }
+
+
+}
--- a/app/src/main/java/com/example/oilcheckkotlin/BLEControllerListener.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/BLEControllerListener.kt
@@ -0,0 +1,14 @@
+package com.example.oilcheckkotlin
+
+/*
+ * (c) Matey Nenov (https://www.thinker-talk.com)
+ *
+ * Licensed under Creative Commons: By Attribution 3.0
+ * http://creativecommons.org/licenses/by/3.0/
+ *
+ */
+interface BLEControllerListener {
+    fun BLEControllerConnected()
+    fun BLEControllerDisconnected()
+    fun BLEDeviceFound(name: String?, address: String?)
+}
--- a/app/src/main/java/com/example/oilcheckkotlin/MainActivity.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/MainActivity.kt
@@ -0,0 +1,58 @@
+package com.example.oilcheckkotlin
+
+import android.app.Notification
+import android.app.PendingIntent
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import com.luckycatlabs.sunrisesunset.SunriseSunsetCalculator
+import com.luckycatlabs.sunrisesunset.dto.Location
+import java.util.Calendar
+
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        var location = Location("52.3759", "9.7320")
+        var calculator = SunriseSunsetCalculator(location, "GMT+0200")
+
+        var sunrise = calculator.getOfficialSunsetForDate(Calendar.getInstance())
+
+        Log.d("Debug", sunrise)
+
+
+        findViewById<Button>(R.id.btnStop)
+            .setOnClickListener{
+                Log.d("Debug", "stop clicked")
+                val intent = Intent(this, BLEConnectionService::class.java)
+                    .setAction("STOPService")
+                startService(intent)
+            }
+        findViewById<Button>(R.id.btnToggle)
+            .setOnClickListener {
+                Log.d("Debug", "Button Toggle")
+                val intent = Intent(this, BLEConnectionService::class.java)
+                    .setAction("Toggle")
+                startService(intent)
+            }
+        findViewById<Button>(R.id.btnOTA)
+            .setOnClickListener{
+                val intent = Intent(this, BLEConnectionService::class.java)
+                .setAction("OTA")
+                startService(intent)
+
+            }
+        startForegroundService(
+            Intent(this, BLEConnectionService::class.java)
+            .setAction("STARTService")
+        )
+
+
+
+    }
+
+}
--- a/app/src/main/java/com/example/oilcheckkotlin/NLService.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/NLService.kt
@@ -0,0 +1,213 @@
+package com.example.oilcheckkotlin
+
+import android.app.Notification
+import android.content.Intent
+import android.os.IBinder
+import android.service.notification.NotificationListenerService
+import android.service.notification.StatusBarNotification
+import android.util.Log
+import java.util.regex.Pattern
+
+class NLService : NotificationListenerService() {
+
+//    override fun onBind(intent: Intent?): IBinder? {
+//        return super.onBind(intent)
+//    }
+//
+//    override fun onNotificationPosted(sbn: StatusBarNotification?) {
+//        // Implement what you want here
+//    }
+//
+//    override fun onNotificationRemoved(sbn: StatusBarNotification?) {
+//        // Implement what you want here
+//    }
+//
+    //    private final IBinder mBinder = new LocalBinder();
+    override fun onBind(intent: Intent): IBinder? {
+        return super.onBind(intent)
+    }
+
+    //returns the instance of the service
+    //    public class LocalBinder extends Binder{
+    //        public NLService getServiceInstance(){
+    //            return NLService.this;
+    //        }
+    //    }
+    override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
+
+        Log.d("Debug: ", "BLE service onStartCommand called")
+//        //        String input = intent.getStringExtra("inputExtra");
+//        val input = "Text"
+//        createNotificationChannel()
+//        val notificationIntent = Intent(this, MainActivity::class.java)
+//        val pendingIntent = PendingIntent.getActivity(
+//            this,
+//            0, notificationIntent, 0
+//        )
+//        val notification = NotificationCompat.Builder(this, CHANNEL_ID)
+//            .setContentTitle("Oil Check")
+//            .setContentText(input) //.setSmallIcon(R.drawable.ic_launcher_foreground)
+//            .setSmallIcon(R.drawable.icon)
+//            .setContentIntent(pendingIntent)
+//            .build()
+//        startForeground(1, notification)
+//        //        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
+////        notificationManager.notify(3, notification);
+//        try {
+//            bleController = BLEController.getInstance(applicationContext)
+//            Log.d("BLE", "bleController instance")
+//        } catch (e: Exception) {
+//            Log.d("BLE", "bleController not available")
+//        }
+        return START_NOT_STICKY
+    }
+
+//    private fun createNotificationChannel() {
+//        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+//            val serviceChannel = NotificationChannel(
+//                CHANNEL_ID,
+//                "Foreground Service Channel",
+//                NotificationManager.IMPORTANCE_DEFAULT
+//            )
+//            val manager = getSystemService(
+//                NotificationManager::class.java
+//            )
+//            manager.createNotificationChannel(serviceChannel)
+//        }
+//    }
+
+    override fun onNotificationPosted(sbn: StatusBarNotification) {
+        Log.d("Debug", "NL Notification fired")
+        // Implement what you want here
+        if (sbn.packageName.contains("de.blitzer.plus")) {
+            Log.d(sbn.packageName, "sbn.getTag()")
+            Log.d("MyNotification", sbn.notification.toString())
+
+            // filter for digits
+            try {
+                val notification =
+                    sbn.notification.extras.getCharSequence(Notification.EXTRA_TEXT).toString()
+                // check of unit in m or km
+                val unitM = "(.*)[\\d][m][\\s](.*)"
+                val unitKm = "(.*)[\\d][k][m][\\s](.*)"
+                Log.d("Unit", unitM)
+                if (notification.matches(unitM.toRegex())) {
+                    Log.d("Notification", "meter")
+                    Log.d("Notification", notification)
+                    // notification in meters
+                    // get digits
+                    val pattern = Pattern.compile("[\\d]+[m][\\s]")
+                    val matcher = pattern.matcher(notification)
+                    while (matcher.find()) {
+                        Log.d("Matcher", "Match found")
+                        val start = matcher.start()
+                        val end = matcher.end()
+                        //                        Log.d("Start", )
+                        // end -2 (one for blank and one for unit(m))
+                        val digits = notification.substring(start, end - 2)
+                        Log.d("Matcher", digits)
+                        val distance = digits.toInt()
+                        Log.d("Distanz", digits)
+                        try {
+                            if (distance > 500) {
+                                Log.d("Distanz", "groesser 500")
+                                val intent = Intent(this, BLEConnectionService::class.java)
+                                    .setAction("X")
+                                startService(intent)
+//                                bleController!!.sendData(String("X").toByteArray())
+                            } else if (distance > 300) {
+                                Log.d("Distanz", "groesser 300")
+                                val intent = Intent(this, BLEConnectionService::class.java)
+                                    .setAction("XX")
+                                startService(intent)
+                            } else if (distance > 150) {
+                                Log.d("Distanz", "groesser 150")
+                                val intent = Intent(this, BLEConnectionService::class.java)
+                                    .setAction("XXX")
+                                startService(intent)
+                            } else {
+                                Log.d("Distanz", "kleiner 100")
+                                val intent = Intent(this, BLEConnectionService::class.java)
+                                    .setAction("XXXX")
+                                startService(intent)
+                            }
+                        } catch (e: Exception) {
+                            //
+                            Log.d("DEBUG", "Send Data failed :(")
+                        }
+                        // end while loop after first match
+                        break
+                    }
+                } else if (notification.matches(unitKm.toRegex())) {
+                    // notification in kilometers
+                    // no need to differ, to much distance
+//                    bleController!!.sendData(String("X").toByteArray())
+                    val intent = Intent(this, BLEConnectionService::class.java)
+                        .setAction("X")
+                    startService(intent)
+                }
+                //                else if(sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("nicht gefunden") ||
+//                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("ungenau")){
+//                    bleController.sendData(new String("XXXXX").getBytes());
+//                }
+//                else{
+//                    bleController.sendData(new String("XXX").getBytes());
+//                }
+            } // old version not working anymore because of update of Blitzer.de
+            //            try {
+            //                if (sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("1.0km") ||
+            //                    sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("1000m")) {
+            //                    bleController.sendData(new String("X").getBytes());
+            //                }
+            //                else if(sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("500m")){
+            //                    bleController.sendData(new String("XX").getBytes());
+            //                }
+            //                else if(sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("300m") ||
+            //                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("200m")){
+            //                    bleController.sendData(new String("XXX").getBytes());
+            //                }
+            //                else if(sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("100m") ||
+            //                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("90m") ||
+            //                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("80m") ||
+            //                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("70m") ||
+            //                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("50m")){
+            //                    bleController.sendData(new String("XXXX").getBytes());
+            //                }
+            ////                else if(sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("nicht gefunden") ||
+            ////                        sbn.getNotification().extras.getCharSequence(Notification.EXTRA_TEXT).toString().contains("ungenau")){
+            ////                    bleController.sendData(new String("XXXXX").getBytes());
+            ////                }
+            ////                else{
+            ////                    bleController.sendData(new String("XXX").getBytes());
+            ////                }
+            //            }
+            catch (e: Exception) {
+                Log.d("DEBUG", "Send notification failed :(")
+            }
+            //            try {
+//                bleController.sendData(new String("X").getBytes());
+//            }
+//            catch(Exception e){
+//
+//            }
+        }
+        //        Log.d(sbn.getPackageName(), "packagename");
+    }
+
+    override fun onNotificationRemoved(sbn: StatusBarNotification) {
+        // Implement what you want here
+        this.stopForeground(STOP_FOREGROUND_REMOVE)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        Log.d("BLE:", "Service onDestory called")
+        this.stopForeground(STOP_FOREGROUND_REMOVE)
+        stopForeground(true)
+        //        stopSelf();
+    }
+
+    companion object {
+        const val CHANNEL_ID = "ForegroundServiceChannel"
+    }
+}
--- a/app/src/main/java/com/example/oilcheckkotlin/NotificationCreator.kt
+++ b/app/src/main/java/com/example/oilcheckkotlin/NotificationCreator.kt
@@ -0,0 +1,32 @@
+package com.example.oilcheckkotlin
+
+import android.R
+import android.app.Notification
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import androidx.core.app.NotificationCompat
+
+
+class NotificationCreator {
+    private val NOTIFICATION_ID = 1094
+    private val CHANNEL_ID = "Foreground Service Channel"
+    private var notification: Notification? = null
+
+    fun getNotification(context: Context?, intent: PendingIntent): Notification? {
+        if (notification == null) {
+
+            notification = NotificationCompat.Builder(context!!, CHANNEL_ID)
+                .setContentTitle("Oil-Check")
+                .setContentText("running")
+                .setSmallIcon(com.example.oilcheckkotlin.R.drawable.icon)
+                .setContentIntent(intent)
+                .build()
+        }
+        return notification
+    }
+
+    fun getNotificationId(): Int {
+        return NOTIFICATION_ID
+    }
+}
--- a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/drawable/draw_icon_blue.png
+++ b/app/src/main/res/drawable/draw_icon_blue.png
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/drawable/icon.png
+++ b/app/src/main/res/drawable/icon.png
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <LinearLayout
+        android:layout_width="400dp"
+        android:layout_height="257dp"
+        android:orientation="vertical"
+        tools:layout_editor_absoluteX="1dp"
+        tools:layout_editor_absoluteY="1dp">
+
+        <Button
+            android:id="@+id/btnStop"
+            android:layout_width="match_parent"
+            android:layout_height="46dp"
+            android:text="Stop" />
+
+        <Button
+            android:id="@+id/btnToggle"
+            android:layout_width="match_parent"
+            android:layout_height="55dp"
+            android:text="Toggle" />
+
+        <Button
+            android:id="@+id/btnOTA"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="OTA Update" />
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.OilCheckKotlin" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">OilCheckKotlin</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.OilCheckKotlin" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
--- a/app/src/test/java/com/example/oilcheckkotlin/ExampleUnitTest.kt
+++ b/app/src/test/java/com/example/oilcheckkotlin/ExampleUnitTest.kt
@@ -0,0 +1,17 @@
+package com.example.oilcheckkotlin
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}