Initial commit

2024-12-06 18:44:31 +01:00 · 2024-12-06 18:44:31 +01:00 · 90871d18f6
commit 90871d18f6
59 changed files with 1687 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,11 @@
+*.iml
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+/app/release
--- a/9
+++ b/9
@ -0,0 +1,9 @@
+ The MIT License (MIT)
+
+Copyright (c) 2015-2021 Aniket Suvarna
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--- a/201
+++ b/201
@ -0,0 +1,201 @@
+                                 Apache License
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+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+      origin of the Work and reproducing the content of the NOTICE file.
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+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+   Copyright 2024 Hammerhead Navigation, Inc. All Rights Reserved.
+
+   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
+
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--- a/README.md
+++ b/README.md
@ -0,0 +1,41 @@
+# Karoo Powerbar Extension
+
+> [!WARNING]  
+> Only tested on Karoo 3
+
+Simple karoo extension that shows an overlay progress bar at the bottom of the screen. For Karoo 2 and Karoo 3 devices
+running Karoo OS version 1.524.2003 and later.
+
+![Powerbar](powerbar0.png)
+![Settings](powerbar1.png)
+
+## Usage
+
+Install the app and start it from the main menu. You will be asked to grant it permission to show 
+it on top of other apps (i. e. the karoo ride app). You can select one of the following data sources:
+
+- Heart rate
+- Power
+- Average power over the last 3 seconds
+- Average power over the last 10 seconds
+
+Subsequently, the power bar will be shown at the bottom of the screen. The bar will be filled according
+to your current power output / heart rate and will change color depending on the intensity, as setup
+in your power / heart rate zones.
+
+## Installation
+
+Currently, Hammerhead has not yet released an on-device app store that allows users to easily install 
+extensions like this. Until it is available, you can sideload the app.
+
+1. Download the apk from the [releases page](https://github.com/timklge/karoo-powerbar/releases) (or build it from source)
+2. Set up your Karoo for sideloading. DC Rainmaker has a great [step-by-step guide](https://www.dcrainmaker.com/2021/02/how-to-sideload-android-apps-on-your-hammerhead-karoo-1-karoo-2.html).
+3. Install the app by running `adb install app-release.apk`.
+
+## Credits
+
+- Icons by [boxicons.com](https://boxicons.com) (MIT-licensed).
+
+## Links
+
+[karoo-ext source](https://github.com/hammerheadnav/karoo-ext)
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -0,0 +1,51 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.jetbrains.kotlin.android)
+    alias(libs.plugins.compose.compiler)
+    kotlin("plugin.serialization") version "2.0.20"
+}
+
+android {
+    namespace = "de.timklge.karoopowerbar"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "de.timklge.karoopowerbar"
+        minSdk = 26
+        targetSdk = 33
+        versionCode = 1
+        versionName = "1.0.0"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = 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"
+    }
+    buildFeatures {
+        compose = true
+    }
+}
+
+dependencies {
+    implementation(libs.hammerhead.karoo.ext)
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.bundles.androidx.lifeycle)
+    implementation(libs.androidx.activity.compose)
+    implementation(libs.bundles.compose.ui)
+    implementation(libs.androidx.navigation.runtime.ktx)
+    implementation(libs.androidx.navigation.compose)
+    implementation(libs.kotlinx.serialization.json)
+    implementation(libs.color)
+    implementation(libs.androidx.datastore.preferences)
+    implementation(libs.androidx.cardview)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+}
--- a/app/karoo-powerbar.png
+++ b/app/karoo-powerbar.png
--- a/app/manifest.json
+++ b/app/manifest.json
@ -0,0 +1,11 @@
+{
+  "label": "karoo-powerbar",
+  "packageName": "de.timklge.karoopowerbar",
+  "iconUrl": "https://github.com/timklge/karoo-powerbar/releases/latest/download/karoo-powerbar.png",
+  "latestApkUrl": "https://github.com/timklge/karoo-powerbar/releases/latest/download/app-release.apk",
+  "latestVersion": "1.0.0",
+  "latestVersionCode": 1,
+  "developer": "timklge",
+  "description": "Adds a colored power bar to the bottom of the screen",
+  "releaseNotes": "Initial release"
+}
--- 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.kts.
+#
+# 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/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.AppCompat">
+        <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=".ForegroundService"
+            android:enabled="true"
+            android:exported="true"/>
+
+        <service
+            android:name="de.timklge.karoopowerbar.KarooPowerbarExtension"
+            android:exported="true"
+            tools:ignore="ExportedService">
+            <intent-filter>
+                <action android:name="io.hammerhead.karooext.KAROO_EXTENSION" />
+            </intent-filter>
+            <meta-data
+                android:name="io.hammerhead.karooext.EXTENSION_INFO"
+                android:resource="@xml/extension_info" />
+        </service>
+
+        <!-- Provide Karoo System with information about delivery of your app -->
+        <meta-data
+            android:name="io.hammerhead.karooext.MANIFEST_URL"
+            android:value="https://github.com/timklge/karoo-powerbar/releases/latest/download/manifest.json" />
+    </application>
+
+
+</manifest>
--- a/app/src/main/ic_launcher-playstore.png
+++ b/app/src/main/ic_launcher-playstore.png
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/CustomProgressBar.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/CustomProgressBar.kt
@ -0,0 +1,74 @@
+package de.timklge.karoopowerbar
+
+import android.content.Context
+import android.content.res.Configuration
+import android.graphics.BlurMaskFilter
+import android.graphics.Canvas
+import android.graphics.Paint
+import android.graphics.RectF
+import android.util.AttributeSet
+import android.view.View
+import androidx.annotation.ColorInt
+import androidx.core.graphics.ColorUtils
+
+class CustomProgressBar @JvmOverloads constructor(
+    context: Context, attrs: AttributeSet? = null
+) : View(context, attrs) {
+    private val mPaddedRect = RectF()
+    private val mBlurRadius = 4
+
+    var progress: Double = 0.5
+    @ColorInt var progressColor: Int = 0xFF2b86e6.toInt()
+
+    fun isDarkMode(context: Context): Boolean {
+        val flags = context.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+        return flags == Configuration.UI_MODE_NIGHT_YES
+    }
+
+    override fun onDrawForeground(canvas: Canvas) {
+        super.onDrawForeground(canvas)
+
+        val linePaint = Paint().apply {
+            isAntiAlias = true
+            strokeWidth = 1f
+            style = Paint.Style.FILL_AND_STROKE
+            color = progressColor
+        }
+
+        val blurPaint = Paint().apply {
+            isAntiAlias = true
+            strokeWidth = 2f
+            style = Paint.Style.STROKE
+            color = progressColor
+            maskFilter = BlurMaskFilter(3f, BlurMaskFilter.Blur.NORMAL)
+        }
+
+        val blurPaintHighlight = Paint().apply {
+            isAntiAlias = true
+            strokeWidth = 4f
+            style = Paint.Style.FILL_AND_STROKE
+            color = ColorUtils.blendARGB(progressColor, 0xFFFFFF, 0.5f)
+            maskFilter = BlurMaskFilter(3f, BlurMaskFilter.Blur.NORMAL)
+        }
+
+        val background = Paint().apply {
+            style = Paint.Style.FILL_AND_STROKE
+            color = 0x70000000
+            strokeWidth = 2f
+        }
+
+        val halfStrokeWidth = 1f
+        mPaddedRect.left = halfStrokeWidth
+        mPaddedRect.top = halfStrokeWidth + mBlurRadius
+        mPaddedRect.right =
+            ((canvas.width.toDouble() - halfStrokeWidth) * progress.coerceIn(0.0, 1.0)).toFloat()
+        mPaddedRect.bottom = canvas.height.toFloat() - halfStrokeWidth
+
+        val corners = 2f
+        canvas.drawRoundRect(0f, 2f + mBlurRadius, canvas.width.toFloat(), canvas.height.toFloat(), 2f, 2f, background)
+        canvas.drawRoundRect(mPaddedRect, corners, corners, blurPaint)
+        canvas.drawRoundRect(mPaddedRect, corners, corners, linePaint)
+
+        canvas.drawRoundRect(mPaddedRect.right-4, mPaddedRect.top, mPaddedRect.right+4, mPaddedRect.bottom, 2f, 2f, blurPaintHighlight)
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/Extensions.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/Extensions.kt
@ -0,0 +1,86 @@
+package de.timklge.karoopowerbar
+
+import android.content.Context
+import android.util.Log
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import de.timklge.karoopowerbar.screens.SelectedSource
+import io.hammerhead.karooext.KarooSystemService
+import io.hammerhead.karooext.models.OnStreamState
+import io.hammerhead.karooext.models.RideState
+import io.hammerhead.karooext.models.StreamState
+import io.hammerhead.karooext.models.UserProfile
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.channels.trySendBlocking
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+
+val jsonWithUnknownKeys = Json { ignoreUnknownKeys = true }
+
+val settingsKey = stringPreferencesKey("settings")
+
+@Serializable
+data class PowerbarSettings(
+    val source: SelectedSource = SelectedSource.POWER,
+){
+    companion object {
+        val defaultSettings = Json.encodeToString(PowerbarSettings())
+    }
+}
+
+suspend fun saveSettings(context: Context, settings: PowerbarSettings) {
+    context.dataStore.edit { t ->
+        t[settingsKey] = Json.encodeToString(settings)
+    }
+}
+
+fun Context.streamSettings(): Flow<PowerbarSettings> {
+    return dataStore.data.map { settingsJson ->
+        try {
+            jsonWithUnknownKeys.decodeFromString<PowerbarSettings>(
+                settingsJson[settingsKey] ?: PowerbarSettings.defaultSettings
+            )
+        } catch(e: Throwable){
+            Log.e("karoo-powerbar", "Failed to read preferences", e)
+            jsonWithUnknownKeys.decodeFromString<PowerbarSettings>(PowerbarSettings.defaultSettings)
+        }
+    }.distinctUntilChanged()
+}
+
+fun KarooSystemService.streamDataFlow(dataTypeId: String): Flow<StreamState> {
+    return callbackFlow {
+        val listenerId = addConsumer(OnStreamState.StartStreaming(dataTypeId)) { event: OnStreamState ->
+            trySendBlocking(event.state)
+        }
+        awaitClose {
+            removeConsumer(listenerId)
+        }
+    }
+}
+
+fun KarooSystemService.streamRideState(): Flow<RideState> {
+    return callbackFlow {
+        val listenerId = addConsumer { rideState: RideState ->
+            trySendBlocking(rideState)
+        }
+        awaitClose {
+            removeConsumer(listenerId)
+        }
+    }
+}
+
+fun KarooSystemService.streamUserProfile(): Flow<UserProfile> {
+    return callbackFlow {
+        val listenerId = addConsumer { userProfile: UserProfile ->
+            trySendBlocking(userProfile)
+        }
+        awaitClose {
+            removeConsumer(listenerId)
+        }
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/ForegroundService.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/ForegroundService.kt
@ -0,0 +1,54 @@
+package de.timklge.karoopowerbar
+
+import android.R
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Context
+import android.content.Intent
+import android.os.IBinder
+import androidx.core.app.NotificationCompat
+
+
+class ForegroundService : Service() {
+    override fun onBind(intent: Intent?): IBinder {
+        throw UnsupportedOperationException("Not yet implemented")
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        setupForeground()
+        val window = Window(this)
+        window.open()
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    private fun setupForeground() {
+        val channelId = "de.timklge.karoopowerbar"
+        val channelName = "Background Service"
+        val chan = NotificationChannel(
+            channelId,
+            channelName,
+            NotificationManager.IMPORTANCE_MIN
+        )
+
+        val manager =
+            checkNotNull(getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager?)
+        manager.createNotificationChannel(chan)
+
+        val notificationBuilder: NotificationCompat.Builder =
+            NotificationCompat.Builder(this, channelId)
+        val notification: Notification = notificationBuilder.setOngoing(true)
+            .setContentTitle("Powerbar service running")
+            .setContentText("Displaying on top of other apps")
+            .setSmallIcon(R.drawable.ic_menu_add)
+            .setPriority(NotificationManager.IMPORTANCE_MIN)
+            .setCategory(Notification.CATEGORY_SERVICE)
+            .build()
+        startForeground(2, notification)
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/KarooPowerbarExtension.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/KarooPowerbarExtension.kt
@ -0,0 +1,47 @@
+package de.timklge.karoopowerbar
+
+import android.content.Intent
+import android.provider.Settings
+import android.util.Log
+import io.hammerhead.karooext.KarooSystemService
+import io.hammerhead.karooext.extension.KarooExtension
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+
+class KarooPowerbarExtension : KarooExtension("karoo-powerbar", "1.0.0") {
+
+    companion object {
+        const val TAG = "karoo-powerbar"
+    }
+
+    private lateinit var karooSystem: KarooSystemService
+
+    private var serviceJob: Job? = null
+
+    override fun onCreate() {
+        super.onCreate()
+
+        karooSystem = KarooSystemService(applicationContext)
+
+        if (Settings.canDrawOverlays(this)) {
+            startForegroundService(Intent(this, ForegroundService::class.java))
+        }
+
+        serviceJob = CoroutineScope(Dispatchers.IO).launch {
+            karooSystem.connect { connected ->
+                if (connected) {
+                    Log.i(TAG, "Connected")
+                }
+            }
+        }
+    }
+
+    override fun onDestroy() {
+        serviceJob?.cancel()
+        serviceJob = null
+        karooSystem.disconnect()
+        super.onDestroy()
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/MainActivity.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/MainActivity.kt
@ -0,0 +1,53 @@
+package de.timklge.karoopowerbar
+
+import android.R
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.os.Bundle
+import android.provider.Settings
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.material3.Text
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.preferencesDataStore
+import de.timklge.karoopowerbar.screens.MainScreen
+import de.timklge.karoopowerbar.theme.AppTheme
+
+val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "settings")
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContent {
+            AppTheme {
+                MainScreen()
+            }
+        }
+
+        checkOverlayPermission()
+        startService()
+    }
+
+    // method for starting the service
+    private fun startService() {
+        if (Settings.canDrawOverlays(this)) {
+            startForegroundService(Intent(this, ForegroundService::class.java))
+        }
+    }
+
+    // method to ask user to grant the Overlay permission
+    private fun checkOverlayPermission() {
+        if (!Settings.canDrawOverlays(this)) {
+            val myIntent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION)
+            startActivity(myIntent)
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+        startService()
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/Window.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/Window.kt
@ -0,0 +1,230 @@
+package de.timklge.karoopowerbar
+
+import android.content.Context
+import android.content.Context.WINDOW_SERVICE
+import android.graphics.PixelFormat
+import android.os.Build
+import android.util.DisplayMetrics
+import android.util.Log
+import android.view.Gravity
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.view.WindowInsets
+import android.view.WindowManager
+import de.timklge.karoopowerbar.screens.SelectedSource
+import io.hammerhead.karooext.KarooSystemService
+import io.hammerhead.karooext.models.DataType
+import io.hammerhead.karooext.models.StreamState
+import io.hammerhead.karooext.models.UserProfile
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.mapNotNull
+import kotlinx.coroutines.launch
+
+
+enum class PowerZone(val colorResource: Int) {
+    ACTIVE_RECOVERY(R.color.zoneActiveRecovery),
+    ENDURANCE(R.color.zoneEndurance),
+    TEMPO(R.color.zoneTempo),
+    THRESHOLD(R.color.zoneThreshold),
+    VO2_MAX(R.color.zoneVO2Max),
+    AEROBIC_CAPACITY(R.color.zoneAerobic),
+    ANAEROBIC_CAPACITY(R.color.zoneAnaerobic),
+}
+
+enum class HrZone(val colorResource: Int) {
+    ACTIVE_RECOVERY(R.color.zoneActiveRecovery),
+    ENDURANCE(R.color.zoneEndurance),
+    TEMPO(R.color.zoneTempo),
+    VO2_MAX(R.color.zoneAerobic),
+}
+
+fun UserProfile.getUserPowerZone(power: Int): PowerZone? {
+    powerZones.forEachIndexed { index, zone ->
+        if (power in zone.min..zone.max) {
+            return PowerZone.entries[index]
+        }
+    }
+
+    return null
+}
+
+fun UserProfile.getUserHrZone(hr: Int): HrZone? {
+    heartRateZones.forEachIndexed { index, zone ->
+        if (hr in zone.min..<zone.max) {
+            return HrZone.entries[index]
+        }
+    }
+
+    return null
+}
+
+fun remap(value: Double, fromMin: Double, fromMax: Double, toMin: Double, toMax: Double): Double {
+    return (value - fromMin) * (toMax - toMin) / (fromMax - fromMin) + toMin
+}
+
+class Window(
+    private val context: Context
+) {
+    // private var mProgressBar: ProgressBar
+    private val mView: View
+    private var mParams: WindowManager.LayoutParams? = null
+    private val mWindowManager: WindowManager
+    private val layoutInflater: LayoutInflater
+    private val mProgressBar: CustomProgressBar
+
+    init {
+        mParams = WindowManager.LayoutParams(
+            WindowManager.LayoutParams.WRAP_CONTENT,
+            WindowManager.LayoutParams.WRAP_CONTENT,
+            WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
+            WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
+            PixelFormat.TRANSLUCENT
+        )
+
+        layoutInflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        mView = layoutInflater.inflate(R.layout.popup_window, null)
+        mProgressBar = mView.findViewById(R.id.progressBar)
+        mProgressBar.progress = 0.5
+
+        mWindowManager = context.getSystemService(WINDOW_SERVICE) as WindowManager
+        val displayMetrics = DisplayMetrics()
+
+        if (Build.VERSION.SDK_INT >= 30) {
+            val windowMetrics = mWindowManager.currentWindowMetrics
+            val insets = windowMetrics.windowInsets.getInsetsIgnoringVisibility(WindowInsets.Type.systemBars())
+            val bounds = windowMetrics.bounds
+            displayMetrics.widthPixels = bounds.width() - insets.left - insets.right
+            displayMetrics.heightPixels = bounds.height() - insets.top - insets.bottom
+        } else {
+            @Suppress("DEPRECATION")
+            mWindowManager.getDefaultDisplay().getMetrics(displayMetrics)
+        }
+
+        // Define the position of the
+        // window within the screen
+        mParams?.gravity = Gravity.BOTTOM
+        mParams?.width = displayMetrics.widthPixels
+        mParams?.alpha = 1.0f
+    }
+
+    private val karooSystem: KarooSystemService = KarooSystemService(context)
+
+    data class StreamData(val userProfile: UserProfile, val value: Double)
+
+    private var serviceJob: Job? = null
+
+    fun open() {
+        serviceJob = CoroutineScope(Dispatchers.IO).launch {
+            karooSystem.connect { connected ->
+                if (connected) {
+                    Log.i("karoo-powerbar", "Connected")
+                }
+            }
+
+            context.streamSettings().distinctUntilChanged().collectLatest { settings ->
+                mProgressBar.progressColor = context.resources.getColor(R.color.zoneAerobic)
+                mProgressBar.progress = 0.5
+                mProgressBar.invalidate()
+
+                Log.i("karoo-powerbar", "Streaming ${settings.source}")
+
+                when (settings.source){
+                    SelectedSource.POWER -> streamPower(PowerStreamSmoothing.RAW)
+                    SelectedSource.POWER_3S -> streamPower(PowerStreamSmoothing.SMOOTHED_3S)
+                    SelectedSource.POWER_10S -> streamPower(PowerStreamSmoothing.SMOOTHED_10S)
+                    // SelectedSource.POWER_30S -> streamPower(PowerStreamSmoothing.SMOOTHED_30S)
+                    SelectedSource.HEART_RATE -> streamHeartrate()
+                }
+            }
+        }
+
+        try {
+            if (mView.windowToken == null && mView.parent == null) {
+                mWindowManager.addView(mView, mParams)
+            }
+        } catch (e: Exception) {
+            Log.d("Error1", e.toString())
+        }
+    }
+
+    private suspend fun streamHeartrate() {
+        val powerFlow = karooSystem.streamDataFlow(DataType.Type.HEART_RATE)
+            .mapNotNull { (it as? StreamState.Streaming)?.dataPoint?.singleValue }
+            .distinctUntilChanged()
+
+        karooSystem.streamUserProfile()
+            .distinctUntilChanged()
+            .combine(powerFlow) { userProfile, hr -> userProfile to hr }
+            .map { (userProfile, hr) -> StreamData(userProfile, hr) }
+            .distinctUntilChanged()
+            .collect { streamData ->
+                val color = context.getColor(
+                    streamData.userProfile.getUserHrZone(streamData.value.toInt())?.colorResource
+                        ?: R.color.zoneAerobic
+                )
+                val minHr = streamData.userProfile.restingHr
+                val maxHr = streamData.userProfile.maxHr
+                val progress =
+                    remap(streamData.value, minHr.toDouble(), maxHr.toDouble(), 0.0, 1.0)
+
+                mProgressBar.progressColor = color
+                mProgressBar.progress = progress
+                mProgressBar.invalidate()
+
+                Log.i("karoo-powerbar", "Hr: ${streamData.value} min: $minHr max: $maxHr")
+            }
+    }
+
+    enum class PowerStreamSmoothing(val dataTypeId: String){
+        RAW(DataType.Type.POWER),
+        SMOOTHED_3S(DataType.Type.SMOOTHED_3S_AVERAGE_POWER),
+        SMOOTHED_10S(DataType.Type.SMOOTHED_10S_AVERAGE_POWER),
+        SMOOTHED_30S(DataType.Type.SMOOTHED_30S_AVERAGE_POWER),
+    }
+
+    private suspend fun streamPower(smoothed: PowerStreamSmoothing) {
+        val powerFlow = karooSystem.streamDataFlow(smoothed.dataTypeId)
+            .mapNotNull { (it as? StreamState.Streaming)?.dataPoint?.singleValue }
+            .distinctUntilChanged()
+
+        karooSystem.streamUserProfile()
+            .distinctUntilChanged()
+            .combine(powerFlow) { userProfile, power -> userProfile to power }
+            .map { (userProfile, power) -> StreamData(userProfile, power) }
+            .distinctUntilChanged()
+            .collect { streamData ->
+                val color = context.getColor(
+                    streamData.userProfile.getUserPowerZone(streamData.value.toInt())?.colorResource
+                        ?: R.color.zoneAerobic
+                )
+                val minPower = streamData.userProfile.powerZones.first().min
+                val maxPower = streamData.userProfile.powerZones.last().min + 50
+                val progress =
+                    remap(streamData.value, minPower.toDouble(), maxPower.toDouble(), 0.0, 1.0)
+
+                mProgressBar.progressColor = color
+                mProgressBar.progress = progress
+                mProgressBar.invalidate()
+
+                Log.i("karoo-powerbar", "Power: ${streamData.value} min: $minPower max: $maxPower")
+            }
+    }
+
+    fun close() {
+        try {
+            serviceJob?.cancel()
+            (context.getSystemService(WINDOW_SERVICE) as WindowManager).removeView(mView)
+            mView.invalidate()
+            (mView.parent as ViewGroup).removeAllViews()
+        } catch (e: Exception) {
+            Log.d("karoo-powerbar", e.toString())
+        }
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/screens/Dropdown.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/screens/Dropdown.kt
@ -0,0 +1,62 @@
+package de.timklge.karoopowerbar.screens
+
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExposedDropdownMenuBox
+import androidx.compose.material3.ExposedDropdownMenuDefaults
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.MenuAnchorType
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+
+
+data class DropdownOption(val id: String, val name: String)
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun Dropdown(label: String, options: List<DropdownOption>, initialSelection: DropdownOption, onSelect: (selectedOption: DropdownOption) -> Unit) {
+    var expanded by remember { mutableStateOf(false) }
+    var selected by remember { mutableStateOf(initialSelection) }
+
+    ExposedDropdownMenuBox(
+        expanded = expanded,
+        onExpandedChange = { expanded = it },
+    ) {
+        OutlinedTextField(
+            readOnly = true,
+            value = selected.name,
+            onValueChange = { },
+            modifier = Modifier.menuAnchor(MenuAnchorType.PrimaryEditable, true).fillMaxWidth(),
+            label = { Text(label) },
+            trailingIcon = {
+                ExposedDropdownMenuDefaults.TrailingIcon(
+                    expanded = expanded
+                )
+            },
+            colors = ExposedDropdownMenuDefaults.textFieldColors()
+        )
+        ExposedDropdownMenu(
+            expanded = expanded,
+            onDismissRequest = { expanded = false },
+        ) {
+            options.forEach { option ->
+                DropdownMenuItem(
+                    text = { Text(option.name, style = MaterialTheme.typography.bodyLarge) },
+                    onClick = {
+                        selected = option
+                        expanded = false
+                        onSelect(selected)
+                    },
+                    contentPadding = ExposedDropdownMenuDefaults.ItemContentPadding,
+                )
+            }
+        }
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/screens/MainScreen.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/screens/MainScreen.kt
@ -0,0 +1,153 @@
+package de.timklge.karoopowerbar.screens
+
+import android.content.Intent
+import android.provider.Settings
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Build
+import androidx.compose.material.icons.filled.Done
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import androidx.core.content.ContextCompat.startActivity
+import androidx.lifecycle.compose.LifecycleResumeEffect
+import de.timklge.karoopowerbar.PowerbarSettings
+import de.timklge.karoopowerbar.saveSettings
+import de.timklge.karoopowerbar.streamSettings
+import io.hammerhead.karooext.KarooSystemService
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+
+enum class SelectedSource(val id: String, val label: String) {
+    HEART_RATE("hr", "Heart Rate"),
+    POWER("power", "Power"),
+    POWER_3S("power_3s", "Power (3 second avg)"),
+    POWER_10S("power_10s", "Power (10 second avg)"),
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MainScreen() {
+    var karooConnected by remember { mutableStateOf(false) }
+    val ctx = LocalContext.current
+    val coroutineScope = rememberCoroutineScope()
+    val karooSystem = remember { KarooSystemService(ctx) }
+
+    var selectedSource by remember { mutableStateOf(SelectedSource.POWER) }
+    var savedDialogVisible by remember { mutableStateOf(false) }
+    var showAlerts by remember { mutableStateOf(false) }
+    var givenPermissions by remember { mutableStateOf(false) }
+
+    LaunchedEffect(Unit) {
+        ctx.streamSettings().collect { settings ->
+            selectedSource = settings.source
+        }
+
+        givenPermissions = Settings.canDrawOverlays(ctx)
+    }
+
+    LaunchedEffect(Unit) {
+        delay(1_000)
+        showAlerts = true
+    }
+
+    LaunchedEffect(Unit) {
+        karooSystem.connect { connected ->
+            karooConnected = connected
+        }
+    }
+
+    LifecycleResumeEffect(Unit) {
+        givenPermissions = Settings.canDrawOverlays(ctx)
+
+        onPauseOrDispose {  }
+    }
+
+
+    Column(modifier = Modifier
+        .fillMaxSize()
+        .background(MaterialTheme.colorScheme.background)) {
+        TopAppBar(title = { Text("Powerbar") })
+        Column(modifier = Modifier
+            .padding(5.dp)
+            .verticalScroll(rememberScrollState())
+            .fillMaxWidth(), verticalArrangement = Arrangement.spacedBy(10.dp)) {
+
+            val powerSourceDropdownOptions = SelectedSource.entries.toList().map { unit -> DropdownOption(unit.id, unit.label) }
+            val powerSourceInitialSelection = powerSourceDropdownOptions.find { option -> option.id == selectedSource.id }!!
+            Dropdown(label = "Data Source", options = powerSourceDropdownOptions, initialSelection = powerSourceInitialSelection) { selectedOption ->
+                selectedSource = SelectedSource.entries.find { unit -> unit.id == selectedOption.id }!!
+            }
+
+            FilledTonalButton(modifier = Modifier
+                .fillMaxWidth()
+                .height(50.dp), onClick = {
+                val newSettings = PowerbarSettings(source = selectedSource)
+
+                coroutineScope.launch {
+                    saveSettings(ctx, newSettings)
+                    savedDialogVisible = true
+                }
+            }) {
+                Icon(Icons.Default.Done, contentDescription = "Save")
+                Spacer(modifier = Modifier.width(5.dp))
+                Text("Save")
+            }
+
+            if (showAlerts){
+                if(!karooConnected){
+                    Text(modifier = Modifier.padding(5.dp), text = "Could not read device status. Is your Karoo updated?")
+                }
+
+                if (!givenPermissions) {
+                    Text(modifier = Modifier.padding(5.dp), text = "You have not given permissions to show the power bar overlay. Please do so.")
+
+                    FilledTonalButton(modifier = Modifier
+                        .fillMaxWidth()
+                        .height(50.dp), onClick = {
+                        val myIntent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION)
+                        startActivity(ctx, myIntent, null)
+                    }) {
+                        Icon(Icons.Default.Build, contentDescription = "Give permission")
+                        Spacer(modifier = Modifier.width(5.dp))
+                        Text("Give permission")
+                    }
+                }
+            }
+        }
+    }
+
+    if (savedDialogVisible){
+        AlertDialog(onDismissRequest = { savedDialogVisible = false },
+            confirmButton = { Button(onClick = {
+                savedDialogVisible = false
+            }) { Text("OK") } },
+            text = { Text("Settings saved successfully.") }
+        )
+    }
+}
--- a/app/src/main/kotlin/de/timklge/karoopowerbar/theme/Theme.kt
+++ b/app/src/main/kotlin/de/timklge/karoopowerbar/theme/Theme.kt
@ -0,0 +1,13 @@
+package de.timklge.karoopowerbar.theme
+
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+
+@Composable
+fun AppTheme(
+    content: @Composable () -> Unit,
+) {
+    MaterialTheme(
+        content = content,
+    )
+}
--- a/app/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-hdpi/ic_launcher.png
--- a/app/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-mdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xhdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xxhdpi/ic_launcher.png
--- a/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/drawable/glow.png
+++ b/app/src/main/res/drawable/glow.png
--- a/app/src/main/res/drawable/solid_background.xml
+++ b/app/src/main/res/drawable/solid_background.xml
@ -0,0 +1,7 @@
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="#ff000000" />
+        </shape>
+    </item>
+</layer-list>
--- a/app/src/main/res/layout/popup_window.xml
+++ b/app/src/main/res/layout/popup_window.xml
@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="16dp">
+
+    <de.timklge.karoopowerbar.CustomProgressBar
+        android:id="@+id/progressBar"
+        android:layout_width="match_parent"
+        android:layout_height="16dp"
+        android:layout_gravity="center"
+        />
+
+</FrameLayout>
--- 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="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/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="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/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_foreground.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.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_foreground.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.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_foreground.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.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_foreground.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.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_foreground.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.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/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#6200EE</color>
+    <color name="colorPrimaryDark">#2600B3</color>
+
+    <color name="zoneActiveRecovery">#00B988</color>
+    <color name="zoneEndurance">#60EEB2</color>
+    <color name="zoneTempo">#FFF500</color>
+    <color name="zoneThreshold">#FB8C65</color>
+    <color name="zoneVO2Max">#FE581F</color>
+    <color name="zoneAerobic">#D60404</color>
+    <color name="zoneAnaerobic">#B700A2</color>
+</resources>
--- a/app/src/main/res/values/ic_launcher_background.xml
+++ b/app/src/main/res/values/ic_launcher_background.xml
@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#000000</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">Powerbar</string>
+    <string name="extension_name">Powerbar</string>
+</resources>
--- a/app/src/main/res/xml/extension_info.xml
+++ b/app/src/main/res/xml/extension_info.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ExtensionInfo
+    displayName="@string/extension_name"
+    icon="@drawable/ic_launcher"
+    id="karoo-powerbar"
+    scansDevices="false">
+    <!-- DataType ... -->
+</ExtensionInfo>
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -0,0 +1,6 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.jetbrains.kotlin.android) apply false
+    alias(libs.plugins.compose.compiler) apply false
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,23 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@ -0,0 +1,52 @@
+[versions]
+agp = "8.5.0"
+color = "1.3.0"
+datastorePreferences = "1.1.1"
+kotlin = "2.0.0"
+
+androidxCore = "1.13.1"
+androidxLifecycle = "2.8.6"
+androidxActivity = "1.9.3"
+androidxComposeUi = "1.7.4"
+androidxComposeMaterial = "1.3.0"
+glance = "1.1.1"
+kotlinxSerializationJson = "1.7.3"
+lifecycleRuntimeKtx = "2.8.7"
+navigationRuntimeKtx = "2.8.4"
+navigationCompose = "2.8.4"
+cardview = "1.0.0"
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
+compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+
+[libraries]
+androidx-datastore-preferences = { module = "androidx.datastore:datastore-preferences", version.ref = "datastorePreferences" }
+androidx-lifecycle-runtime-ktx = { module = "androidx.lifecycle:lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
+color = { module = "com.maxkeppeler.sheets-compose-dialogs:color", version.ref = "color" }
+hammerhead-karoo-ext = { group = "io.hammerhead", name = "karoo-ext", version = "1.1.1" }
+
+androidx-core-ktx = { module = "androidx.core:core-ktx", version.ref = "androidxCore" }
+
+# compose
+androidx-lifecycle-runtime-compose = { module = "androidx.lifecycle:lifecycle-runtime-compose", version.ref = "androidxLifecycle" }
+androidx-lifecycle-viewmodel-compose = { module = "androidx.lifecycle:lifecycle-viewmodel-compose", version.ref = "androidxLifecycle" }
+
+androidx-activity-compose = { module = "androidx.activity:activity-compose", version.ref = "androidxActivity" }
+androidx-compose-ui = { module = "androidx.compose.ui:ui", version.ref = "androidxComposeUi" }
+androidx-compose-ui-tooling-preview = { module = "androidx.compose.ui:ui-tooling-preview", version.ref = "androidxComposeUi" }
+androidx-compose-ui-tooling = { module = "androidx.compose.ui:ui-tooling", version.ref = "androidxComposeUi" }
+androidx-compose-material = { module = "androidx.compose.material3:material3", version.ref = "androidxComposeMaterial" }
+
+# Glance
+androidx-glance-appwidget = { group = "androidx.glance", name = "glance-appwidget", version.ref = "glance" }
+androidx-glance-preview = { group = "androidx.glance", name = "glance-preview", version.ref = "glance" }
+androidx-navigation-runtime-ktx = { group = "androidx.navigation", name = "navigation-runtime-ktx", version.ref = "navigationRuntimeKtx" }
+androidx-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
+kotlinx-serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinxSerializationJson" }
+androidx-cardview = { group = "androidx.cardview", name = "cardview", version.ref = "cardview" }
+
+[bundles]
+androidx-lifeycle = ["androidx-lifecycle-runtime-compose", "androidx-lifecycle-viewmodel-compose"]
+compose-ui = ["androidx-compose-ui", "androidx-compose-material", "androidx-compose-ui-tooling-preview", "androidx-compose-ui-tooling"]
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/244
+++ b/244
@ -0,0 +1,244 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# 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.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/powerbar0.png
+++ b/powerbar0.png
--- a/powerbar1.png
+++ b/powerbar1.png
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@ -0,0 +1,38 @@
+fun getLocalProperty(key: String, file: String = "local.properties"): String? {
+    val properties = java.util.Properties()
+    val localProperties = File(file)
+    if (localProperties.isFile) {
+        java.io.InputStreamReader(java.io.FileInputStream(localProperties), Charsets.UTF_8).use { reader ->
+            properties.load(reader)
+        }
+    } else error("File from not found")
+
+    return properties.getProperty(key)
+}
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        google()
+        mavenCentral()
+    }
+}
+val gprUser = getLocalProperty("gpr.user")
+val gprKey = getLocalProperty("gpr.key")
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+        // karoo-ext from Github Packages
+        maven {
+            url = uri("https://maven.pkg.github.com/hammerheadnav/karoo-ext")
+            credentials {
+                username = gprUser
+                password = gprKey
+            }
+        }
+    }
+}
+
+rootProject.name = "Karoo Powerbar"
+include("app")