Stromzaehler-App

2026-03-16 18:20:22 +01:00 · 2026-03-16 18:20:22 +01:00 · cb5c04132f
commit cb5c04132f
54 changed files with 1771 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
--- a/.idea/AndroidProjectSystem.xml
+++ b/.idea/AndroidProjectSystem.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AndroidProjectSystem">
+    <option name="providerId" value="com.android.tools.idea.GradleProjectSystem" />
+  </component>
+</project>
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="21" />
+  </component>
+</project>
--- a/.idea/deploymentTargetSelector.xml
+++ b/.idea/deploymentTargetSelector.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>
--- a/.idea/deviceManager.xml
+++ b/.idea/deviceManager.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DeviceTable">
+    <option name="columnSorters">
+      <list>
+        <ColumnSorterState>
+          <option name="column" value="Name" />
+          <option name="order" value="ASCENDING" />
+        </ColumnSorterState>
+      </list>
+    </option>
+  </component>
+</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="CHOOSE_PER_TEST" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@ -0,0 +1,61 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="ComposePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="ComposePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="GlancePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDeviceShouldUseNewSpec" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewParameterProviderOnFirstParameter" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="composableFile" value="true" />
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -0,0 +1,9 @@
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.intellij.execution.junit.AbstractAllInDirectoryConfigurationProducer" />
+        <option value="com.intellij.execution.junit.AllInPackageConfigurationProducer" />
+        <option value="com.intellij.execution.junit.PatternConfigurationProducer" />
+        <option value="com.intellij.execution.junit.TestInClassConfigurationProducer" />
+        <option value="com.intellij.execution.junit.UniqueIdConfigurationProducer" />
+        <option value="com.intellij.execution.junit.testDiscovery.JUnitTestDiscoveryConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinJUnitRunConfigurationProducer" />
+        <option value="org.jetbrains.kotlin.idea.junit.KotlinPatternConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,84 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.compose)
+    id 'com.google.devtools.ksp'
+}
+
+android {
+    namespace 'com.warzazel.stromzaehler'
+    compileSdk {
+        version = release(36) {
+            minorApiLevel = 1
+        }
+    }
+
+    defaultConfig {
+        applicationId "com.warzazel.stromzaehler"
+        minSdk 26
+        targetSdk 36
+        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_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+
+    buildFeatures {
+        compose true
+    }
+}
+
+dependencies {
+    implementation libs.androidx.core.ktx
+    implementation libs.androidx.lifecycle.runtime.ktx
+    implementation libs.androidx.activity.compose
+    implementation platform(libs.androidx.compose.bom)
+    implementation libs.androidx.compose.ui
+    implementation libs.androidx.compose.ui.graphics
+    implementation libs.androidx.compose.ui.tooling.preview
+    implementation libs.androidx.compose.material3
+    testImplementation libs.junit
+    androidTestImplementation libs.androidx.junit
+    androidTestImplementation libs.androidx.espresso.core
+    androidTestImplementation platform(libs.androidx.compose.bom)
+    androidTestImplementation libs.androidx.compose.ui.test.junit4
+    debugImplementation libs.androidx.compose.ui.tooling
+    debugImplementation libs.androidx.compose.ui.test.manifest
+    ksp 'org.jetbrains.kotlin:kotlin-metadata-jvm:2.2.10'
+    // LiveData Compose
+    implementation 'androidx.compose.runtime:runtime-livedata:1.7.8'
+
+    // ViewModel Compose
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-compose:2.8.7'
+
+    // Room
+    implementation 'androidx.room:room-runtime:2.7.0'
+    implementation 'androidx.room:room-ktx:2.7.0'
+    ksp 'androidx.room:room-compiler:2.7.0'
+
+    // ViewModel + LiveData
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0'
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.7.0'
+
+    // Diagramm
+    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
+
+    // Material Design 3
+    implementation 'com.google.android.material:material:1.12.0'
+
+    // Coroutines
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.3'
+
+    // AppCompat
+    implementation 'androidx.appcompat:appcompat:1.7.0'
+}
--- 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/warzazel/stromzaehler/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/warzazel/stromzaehler/ExampleInstrumentedTest.kt
@ -0,0 +1,24 @@
+package com.warzazel.stromzaehler
+
+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.warzazel.stromzaehler", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Stromzaehler">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.Stromzaehler">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/warzazel/stromzaehler/MainActivity.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/MainActivity.kt
@ -0,0 +1,420 @@
+package com.warzazel.stromzaehler
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import com.warzazel.stromzaehler.data.Ablesung
+import com.warzazel.stromzaehler.ui.StromViewModel
+import com.warzazel.stromzaehler.ui.theme.StromzaehlerTheme
+import java.text.SimpleDateFormat
+import java.util.*
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            StromzaehlerTheme {
+                StromScreen()
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun StromScreen(viewModel: StromViewModel = viewModel()) {
+    val ablesungen by viewModel.alleAblesungen.observeAsState(emptyList())
+    var selectedTab by remember { mutableIntStateOf(0) }
+    val tabs = listOf("Eingabe", "Tage", "Monate", "Gesamt", "Diagramm")
+
+    var eingabe by remember { mutableStateOf("") }
+    var notiz by remember { mutableStateOf("") }
+    var zeitstempel by remember { mutableStateOf(System.currentTimeMillis()) }
+    var datumText by remember { mutableStateOf(datumFormatieren(System.currentTimeMillis())) }
+
+    var verbrauchTag by remember { mutableStateOf<Double?>(null) }
+    var verbrauchWoche by remember { mutableStateOf<Double?>(null) }
+    var verbrauchMonat by remember { mutableStateOf<Double?>(null) }
+    var verbrauchGesamt by remember { mutableStateOf<Double?>(null) }
+
+    var tagesListe by remember { mutableStateOf<List<Pair<String, Double>>>(emptyList()) }
+    var monatsListe by remember { mutableStateOf<List<Pair<String, Double>>>(emptyList()) }
+    var gesamtInfo by remember { mutableStateOf<Triple<Double, Long, Long>?>(null) }
+
+    LaunchedEffect(ablesungen) {
+        verbrauchTag = viewModel.verbrauchSeit(StromViewModel.EINEN_TAG)
+        verbrauchWoche = viewModel.verbrauchSeit(StromViewModel.SIEBEN_TAGE)
+        verbrauchMonat = viewModel.verbrauchSeit(StromViewModel.DREISSIG_TAGE)
+        verbrauchGesamt = viewModel.verbrauchGesamt()
+        tagesListe = viewModel.tagesverbrauchLetzte(100)
+        monatsListe = viewModel.monatsverbrauch(12)
+        gesamtInfo = viewModel.gesamtInfo()
+    }
+
+    Scaffold(
+        topBar = {
+            Column {
+                TopAppBar(
+                    title = { Text("Stromzähler") },
+                    actions = {
+                        var zeigeSpinneDialog by remember { mutableStateOf(false) }
+
+                        if (zeigeSpinneDialog) {
+                            AlertDialog(
+                                onDismissRequest = { zeigeSpinneDialog = false },
+                                title = { Text("Info") },
+                                text = {
+                                    Column {
+                                        Text("Freeware")
+                                        Text("admin@voidofxulub.com")
+                                    }
+                                },
+                                confirmButton = {
+                                    TextButton(onClick = { zeigeSpinneDialog = false }) { Text("OK") }
+                                }
+                            )
+                        }
+
+                        IconButton(onClick = { zeigeSpinneDialog = true }) {
+                            Image(
+                                painter = painterResource(id = R.drawable.vs),
+                                contentDescription = "Logo",
+                                modifier = Modifier.size(32.dp)
+                            )
+                        }
+                    }
+                )
+                TabRow(selectedTabIndex = selectedTab) {
+                    tabs.forEachIndexed { index, title ->
+                        Tab(
+                            selected = selectedTab == index,
+                            onClick = { selectedTab = index },
+                            text = { Text(title) }
+                        )
+                    }
+                }
+            }
+        }
+    ) { padding ->
+        when (selectedTab) {
+            0 -> TabEingabe(
+                padding = padding,
+                ablesungen = ablesungen,
+                eingabe = eingabe,
+                onEingabeChange = { eingabe = it },
+                notiz = notiz,
+                onNotizChange = { notiz = it },
+                datumText = datumText,
+                onDatumChange = {
+                    datumText = it
+                    parseDatum(it)?.let { ts -> zeitstempel = ts }
+                },
+                onEintragen = {
+                    val stand = eingabe.replace(",", ".").toDoubleOrNull()
+                    if (stand != null) {
+                        viewModel.speichern(stand, zeitstempel, notiz)
+                        eingabe = ""
+                        notiz = ""
+                        zeitstempel = System.currentTimeMillis()
+                        datumText = datumFormatieren(zeitstempel)
+                    }
+                },
+                verbrauchTag = verbrauchTag,
+                verbrauchWoche = verbrauchWoche,
+                verbrauchMonat = verbrauchMonat,
+                verbrauchGesamt = verbrauchGesamt,
+                onLoeschen = { viewModel.loeschen(it) }
+            )
+            1 -> TabTage(padding = padding, liste = tagesListe)
+            2 -> TabMonate(padding = padding, liste = monatsListe)
+            3 -> TabGesamt(padding = padding, info = gesamtInfo)
+            4 -> TabDiagramm(padding = padding, liste = tagesListe)
+        }
+    }
+}
+
+@Composable
+fun TabEingabe(
+    padding: PaddingValues,
+    ablesungen: List<Ablesung>,
+    eingabe: String,
+    onEingabeChange: (String) -> Unit,
+    notiz: String,
+    onNotizChange: (String) -> Unit,
+    datumText: String,
+    onDatumChange: (String) -> Unit,
+    onEintragen: () -> Unit,
+    verbrauchTag: Double?,
+    verbrauchWoche: Double?,
+    verbrauchMonat: Double?,
+    verbrauchGesamt: Double?,
+    onLoeschen: (Ablesung) -> Unit
+) {
+    LazyColumn(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(12.dp)
+    ) {
+        item {
+            Card(modifier = Modifier.fillMaxWidth()) {
+                Column(
+                    modifier = Modifier.padding(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp)
+                ) {
+                    Text("Neue Ablesung", style = MaterialTheme.typography.titleMedium)
+                    OutlinedTextField(
+                        value = eingabe,
+                        onValueChange = onEingabeChange,
+                        label = { Text("Zählerstand (kWh)") },
+                        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Decimal),
+                        modifier = Modifier.fillMaxWidth()
+                    )
+                    OutlinedTextField(
+                        value = notiz,
+                        onValueChange = onNotizChange,
+                        label = { Text("Notiz (optional)") },
+                        modifier = Modifier.fillMaxWidth()
+                    )
+                    OutlinedTextField(
+                        value = datumText,
+                        onValueChange = onDatumChange,
+                        label = { Text("Datum (dd.MM.yyyy HH:mm)") },
+                        modifier = Modifier.fillMaxWidth()
+                    )
+                    Button(
+                        onClick = onEintragen,
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        Text("Eintragen")
+                    }
+                }
+            }
+        }
+
+        item {
+            Card(modifier = Modifier.fillMaxWidth()) {
+                Column(
+                    modifier = Modifier.padding(16.dp),
+                    verticalArrangement = Arrangement.spacedBy(8.dp)
+                ) {
+                    Text("Verbrauch", style = MaterialTheme.typography.titleMedium)
+                    VerbrauchZeile("Seit gestern", verbrauchTag)
+                    VerbrauchZeile("Letzte 7 Tage", verbrauchWoche)
+                    VerbrauchZeile("Letzte 30 Tage", verbrauchMonat)
+                    VerbrauchZeile("Gesamt", verbrauchGesamt)
+                }
+            }
+        }
+
+        item {
+            Text("Verlauf", style = MaterialTheme.typography.titleMedium)
+        }
+
+        items(ablesungen) { ablesung ->
+            AblesungEintrag(ablesung = ablesung, onLoeschen = { onLoeschen(ablesung) })
+        }
+    }
+}
+
+@Composable
+fun TabTage(padding: PaddingValues, liste: List<Pair<String, Double>>) {
+    LazyColumn(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        if (liste.isEmpty()) {
+            item { Text("Noch nicht genug Daten.") }
+        } else {
+            items(liste.reversed()) { (datum, kwh) ->
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Text(datum, style = MaterialTheme.typography.bodyMedium)
+                    Text("%.2f kWh".format(kwh), style = MaterialTheme.typography.bodyMedium)
+                }
+                HorizontalDivider()
+            }
+        }
+    }
+}
+
+@Composable
+fun TabMonate(padding: PaddingValues, liste: List<Pair<String, Double>>) {
+    LazyColumn(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        if (liste.isEmpty()) {
+            item { Text("Noch nicht genug Daten.") }
+        } else {
+            items(liste.reversed()) { (monat, kwh) ->
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Text(monat, style = MaterialTheme.typography.bodyMedium)
+                    Text("%.2f kWh".format(kwh), style = MaterialTheme.typography.bodyMedium)
+                }
+                HorizontalDivider()
+            }
+        }
+    }
+}
+
+@Composable
+fun TabGesamt(padding: PaddingValues, info: Triple<Double, Long, Long>?) {
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+            .padding(16.dp)
+    ) {
+        if (info == null) {
+            Text("Noch nicht genug Daten.")
+        } else {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                Text("Gesamtverbrauch", style = MaterialTheme.typography.titleMedium)
+                Text("%.2f kWh".format(info.first), style = MaterialTheme.typography.headlineLarge)
+                Text(
+                    "${datumFormatieren(info.second)} – ${datumFormatieren(info.third)}",
+                    style = MaterialTheme.typography.bodyMedium
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun TabDiagramm(padding: PaddingValues, liste: List<Pair<String, Double>>) {
+    LazyColumn(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+            .padding(16.dp),
+        verticalArrangement = Arrangement.spacedBy(6.dp)
+    ) {
+        if (liste.isEmpty()) {
+            item { Text("Noch nicht genug Daten.") }
+        } else {
+            val max = liste.maxOf { it.second }
+            items(liste.takeLast(30).reversed()) { (datum, kwh) ->
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(8.dp)
+                ) {
+                    Text(
+                        datum,
+                        style = MaterialTheme.typography.bodySmall,
+                        modifier = Modifier.width(40.dp)
+                    )
+                    LinearProgressIndicator(
+                        progress = { (kwh / max).toFloat() },
+                        modifier = Modifier
+                            .weight(1f)
+                            .height(8.dp)
+                    )
+                    Text(
+                        "%.1f".format(kwh),
+                        style = MaterialTheme.typography.bodySmall,
+                        modifier = Modifier.width(40.dp)
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun VerbrauchZeile(label: String, wert: Double?) {
+    Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
+        Text(label)
+        Text(if (wert != null) "%.2f kWh".format(wert) else "—")
+    }
+}
+
+@Composable
+fun AblesungEintrag(ablesung: Ablesung, onLoeschen: () -> Unit) {
+    var zeigeDialog by remember { mutableStateOf(false) }
+
+    if (zeigeDialog) {
+        AlertDialog(
+            onDismissRequest = { zeigeDialog = false },
+            title = { Text("Eintrag löschen") },
+            text = { Text("Sicher löschen?\n%.2f kWh vom %s".format(ablesung.zaehlerstand, datumFormatieren(ablesung.zeitstempel))) },
+            confirmButton = {
+                TextButton(onClick = {
+                    onLoeschen()
+                    zeigeDialog = false
+                }) { Text("Löschen") }
+            },
+            dismissButton = {
+                TextButton(onClick = { zeigeDialog = false }) { Text("Abbrechen") }
+            }
+        )
+    }
+
+    Card(modifier = Modifier.fillMaxWidth()) {
+        Row(
+            modifier = Modifier
+                .padding(12.dp)
+                .fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceBetween,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Column {
+                Text(
+                    "%.2f kWh".format(ablesung.zaehlerstand),
+                    style = MaterialTheme.typography.bodyLarge
+                )
+                Text(
+                    datumFormatieren(ablesung.zeitstempel),
+                    style = MaterialTheme.typography.bodySmall
+                )
+                if (ablesung.notiz.isNotEmpty()) {
+                    Text(ablesung.notiz, style = MaterialTheme.typography.bodySmall)
+                }
+            }
+            TextButton(onClick = { zeigeDialog = true }) { Text("Löschen") }
+        }
+    }
+}
+
+fun datumFormatieren(timestamp: Long): String {
+    val sdf = SimpleDateFormat("dd.MM.yyyy HH:mm", Locale.GERMANY)
+    return sdf.format(Date(timestamp))
+}
+
+fun parseDatum(text: String): Long? {
+    return try {
+        val sdf = SimpleDateFormat("dd.MM.yyyy HH:mm", Locale.GERMANY)
+        sdf.parse(text)?.time
+    } catch (e: Exception) {
+        null
+    }
+}
--- a/app/src/main/java/com/warzazel/stromzaehler/data/Ablesung.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/data/Ablesung.kt
@ -0,0 +1,13 @@
+package com.warzazel.stromzaehler.data
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "ablesungen")
+data class Ablesung(
+    @PrimaryKey(autoGenerate = true)
+    val id: Long = 0,
+    val zaehlerstand: Double,
+    val zeitstempel: Long,
+    val notiz: String = ""
+)
--- a/app/src/main/java/com/warzazel/stromzaehler/data/AblesungDao.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/data/AblesungDao.kt
@ -0,0 +1,32 @@
+package com.warzazel.stromzaehler.data
+
+import androidx.lifecycle.LiveData
+import androidx.room.*
+
+@Dao
+interface AblesungDao {
+
+    @Insert
+    suspend fun einfuegen(ablesung: Ablesung)
+
+    @Delete
+    suspend fun loeschen(ablesung: Ablesung)
+
+    @Query("SELECT * FROM ablesungen ORDER BY zeitstempel DESC")
+    fun alle(): LiveData<List<Ablesung>>
+
+    @Query("SELECT * FROM ablesungen ORDER BY zeitstempel DESC LIMIT 1")
+    suspend fun letzteAblesung(): Ablesung?
+
+    @Query("SELECT * FROM ablesungen WHERE zeitstempel <= :bis ORDER BY zeitstempel DESC LIMIT 1")
+    suspend fun naechsteVor(bis: Long): Ablesung?
+
+    @Query("SELECT * FROM ablesungen ORDER BY zeitstempel ASC LIMIT 1")
+    suspend fun ersteAblesung(): Ablesung?
+
+    @Query("SELECT * FROM ablesungen WHERE zeitstempel >= :von AND zeitstempel <= :bis ORDER BY zeitstempel ASC")
+    suspend fun ablesungenImZeitraum(von: Long, bis: Long): List<Ablesung>
+
+    @Query("SELECT * FROM ablesungen ORDER BY zeitstempel ASC")
+    suspend fun alleAsList(): List<Ablesung>
+}
--- a/app/src/main/java/com/warzazel/stromzaehler/data/StromDatenbank.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/data/StromDatenbank.kt
@ -0,0 +1,27 @@
+package com.warzazel.stromzaehler.data
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+
+@Database(entities = [Ablesung::class], version = 1)
+abstract class StromDatenbank : RoomDatabase() {
+
+    abstract fun ablesungDao(): AblesungDao
+
+    companion object {
+        @Volatile
+        private var INSTANCE: StromDatenbank? = null
+
+        fun getInstance(context: Context): StromDatenbank {
+            return INSTANCE ?: synchronized(this) {
+                Room.databaseBuilder(
+                    context.applicationContext,
+                    StromDatenbank::class.java,
+                    "strom_datenbank"
+                ).build().also { INSTANCE = it }
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Color.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Color.kt
@ -0,0 +1,11 @@
+package com.warzazel.stromzaehler.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
--- a/app/src/main/java/com/warzazel/stromzaehler/ui/theme/StromViewModel.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/ui/theme/StromViewModel.kt
@ -0,0 +1,132 @@
+package com.warzazel.stromzaehler.ui
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.viewModelScope
+import com.warzazel.stromzaehler.data.Ablesung
+import com.warzazel.stromzaehler.data.StromDatenbank
+import kotlinx.coroutines.launch
+import java.util.*
+import java.util.concurrent.TimeUnit
+
+class StromViewModel(application: Application) : AndroidViewModel(application) {
+
+    private val dao = StromDatenbank.getInstance(application).ablesungDao()
+
+    val alleAblesungen: LiveData<List<Ablesung>> = dao.alle()
+
+    fun speichern(zaehlerstand: Double, zeitstempel: Long, notiz: String = "") {
+        viewModelScope.launch {
+            dao.einfuegen(Ablesung(
+                zaehlerstand = zaehlerstand,
+                zeitstempel = zeitstempel,
+                notiz = notiz
+            ))
+        }
+    }
+
+    fun loeschen(ablesung: Ablesung) {
+        viewModelScope.launch {
+            dao.loeschen(ablesung)
+        }
+    }
+
+    suspend fun verbrauchSeit(millisZurueck: Long): Double? {
+        val jetzt = System.currentTimeMillis()
+        val letzte = dao.letzteAblesung() ?: return null
+        val frueher = dao.naechsteVor(jetzt - millisZurueck) ?: return null
+        if (frueher.id == letzte.id) return null
+        return letzte.zaehlerstand - frueher.zaehlerstand
+    }
+
+    suspend fun verbrauchGesamt(): Double? {
+        val letzte = dao.letzteAblesung() ?: return null
+        val erste = dao.ersteAblesung() ?: return null
+        if (erste.id == letzte.id) return null
+        return letzte.zaehlerstand - erste.zaehlerstand
+    }
+
+    // Tagesverbrauch für die letzten X Tage
+    // Gibt Liste von Paaren (DatumLabel, kWh) zurück
+    suspend fun tagesverbrauchLetzte(tage: Int): List<Pair<String, Double>> {
+        val alle = dao.alleAsList()
+        if (alle.size < 2) return emptyList()
+
+        val ergebnis = mutableListOf<Pair<String, Double>>()
+        val cal = Calendar.getInstance()
+        val heute = cal.timeInMillis
+
+        for (i in 0 until tage) {
+            val tagEnde = heute - i * EINEN_TAG
+            val tagStart = tagEnde - EINEN_TAG
+
+            val letzterAmTag = alle.lastOrNull { it.zeitstempel <= tagEnde } ?: continue
+            val letzterVorTag = alle.lastOrNull { it.zeitstempel <= tagStart } ?: continue
+            if (letzterAmTag.id == letzterVorTag.id) continue
+
+            val verbrauch = letzterAmTag.zaehlerstand - letzterVorTag.zaehlerstand
+            if (verbrauch < 0) continue
+
+            val datum = Calendar.getInstance().apply { timeInMillis = tagEnde }
+            val label = "%02d.%02d".format(datum.get(Calendar.DAY_OF_MONTH), datum.get(Calendar.MONTH) + 1)
+            ergebnis.add(0, Pair(label, verbrauch))
+        }
+        return ergebnis
+    }
+
+    // Monatsverbrauch für die letzten X Monate
+    suspend fun monatsverbrauch(monate: Int): List<Pair<String, Double>> {
+        val alle = dao.alleAsList()
+        if (alle.size < 2) return emptyList()
+
+        val ergebnis = mutableListOf<Pair<String, Double>>()
+        val cal = Calendar.getInstance()
+
+        for (i in 0 until monate) {
+            val endCal = Calendar.getInstance().apply {
+                set(Calendar.DAY_OF_MONTH, 1)
+                set(Calendar.HOUR_OF_DAY, 0)
+                set(Calendar.MINUTE, 0)
+                set(Calendar.SECOND, 0)
+                set(Calendar.MILLISECOND, 0)
+                add(Calendar.MONTH, -i)
+                add(Calendar.MONTH, 1)
+                add(Calendar.MILLISECOND, -1)
+            }
+            val startCal = Calendar.getInstance().apply {
+                set(Calendar.DAY_OF_MONTH, 1)
+                set(Calendar.HOUR_OF_DAY, 0)
+                set(Calendar.MINUTE, 0)
+                set(Calendar.SECOND, 0)
+                set(Calendar.MILLISECOND, 0)
+                add(Calendar.MONTH, -i)
+            }
+
+            val letzterImMonat = alle.lastOrNull { it.zeitstempel <= endCal.timeInMillis } ?: continue
+            val letzterVorMonat = alle.lastOrNull { it.zeitstempel < startCal.timeInMillis } ?: continue
+            if (letzterImMonat.id == letzterVorMonat.id) continue
+
+            val verbrauch = letzterImMonat.zaehlerstand - letzterVorMonat.zaehlerstand
+            if (verbrauch < 0) continue
+
+            val label = "%02d.%04d".format(startCal.get(Calendar.MONTH) + 1, startCal.get(Calendar.YEAR))
+            ergebnis.add(0, Pair(label, verbrauch))
+        }
+        return ergebnis
+    }
+
+    suspend fun gesamtInfo(): Triple<Double, Long, Long>? {
+        val letzte = dao.letzteAblesung() ?: return null
+        val erste = dao.ersteAblesung() ?: return null
+        if (erste.id == letzte.id) return null
+        val verbrauch = letzte.zaehlerstand - erste.zaehlerstand
+        return Triple(verbrauch, erste.zeitstempel, letzte.zeitstempel)
+    }
+
+    companion object {
+        val EINEN_TAG = TimeUnit.DAYS.toMillis(1)
+        val SIEBEN_TAGE = TimeUnit.DAYS.toMillis(7)
+        val DREISSIG_TAGE = TimeUnit.DAYS.toMillis(30)
+    }
+}
--- a/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Theme.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Theme.kt
@ -0,0 +1,58 @@
+package com.warzazel.stromzaehler.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun StromzaehlerTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
--- a/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Type.kt
+++ b/app/src/main/java/com/warzazel/stromzaehler/ui/theme/Type.kt
@ -0,0 +1,34 @@
+package com.warzazel.stromzaehler.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
--- 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/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/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/vs.png
+++ b/app/src/main/res/drawable/vs.png
--- a/app/src/main/res/mipmap-anydpi/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher.xml
@ -0,0 +1,6 @@
+<?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" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
@ -0,0 +1,6 @@
+<?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" />
+    <monochrome 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/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">Stromzaehler</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.Stromzaehler" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>
--- a/app/src/main/res/xml/backup_rules.xml
+++ b/app/src/main/res/xml/backup_rules.xml
@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older than API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
--- a/app/src/main/res/xml/data_extraction_rules.xml
+++ b/app/src/main/res/xml/data_extraction_rules.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
--- a/app/src/test/java/com/warzazel/stromzaehler/ExampleUnitTest.kt
+++ b/app/src/test/java/com/warzazel/stromzaehler/ExampleUnitTest.kt
@ -0,0 +1,17 @@
+package com.warzazel.stromzaehler
+
+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)
+    }
+}
--- a/build.gradle
+++ b/build.gradle
@ -0,0 +1,5 @@
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.kotlin.compose) apply false
+    id 'com.google.devtools.ksp' version '2.3.5' apply false
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,15 @@
+# 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. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
--- a/gradle/gradle-daemon-jvm.properties
+++ b/gradle/gradle-daemon-jvm.properties
@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73bcfb608d1fde9fb62e462f834a3299/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/846ee0d876d26a26f37aa1ce8de73224/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9482ddec596298c84656d31d16652665/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/39701d92e1756bb2f141eb67cd4c660e/redirect
+toolchainVersion=21
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@ -0,0 +1,31 @@
+[versions]
+agp = "9.1.0"
+coreKtx = "1.18.0"
+junit = "4.13.2"
+junitVersion = "1.3.0"
+espressoCore = "3.7.0"
+lifecycleRuntimeKtx = "2.10.0"
+activityCompose = "1.13.0"
+kotlin = "2.2.10"
+composeBom = "2024.09.00"
+
+[libraries]
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-lifecycle-runtime-ktx = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
+androidx-activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
+androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+androidx-compose-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-compose-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-compose-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-compose-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-compose-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+androidx-compose-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+androidx-compose-material3 = { group = "androidx.compose.material3", name = "material3" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+
--- 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 +1,9 @@
+#Sun Mar 15 18:08:17 CET 2026
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionSha256Sum=b266d5ff6b90eada6dc3b20cb090e3731302e553a27c5d3e4df1f0d76beaff06
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/251
+++ b/251
@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   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/platforms/jvm/plugins-application/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##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# 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 "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$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
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# 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 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+: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/settings.gradle
+++ b/settings.gradle
@ -0,0 +1,27 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '1.0.0'
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+        maven { url 'https://jitpack.io' }
+    }
+}
+
+rootProject.name = "Stromzaehler"
+include ':app'