Update default texts, admin UI improvements, Kiosk Mode prep, and fix image gallery saving

README.md

@@ -110,6 +110,28 @@ When the app is first launched, you can access the **Admin Dashboard** by tappin
 
 ---
 
+## Kiosk Mode (Device Owner) Setup
+
+To use the **true Kiosk Mode** (Lock Task Mode) without system confirmation prompts, the Schnappix app must be set as the Android "Device Owner". This requires connecting the tablet to a PC via USB and using `adb`.
+
+**Prerequisites:**
+1. The Android tablet must have no other accounts (like a Google Account) configured. It is highly recommended to start with a factory-reset device.
+2. Developer Options and USB Debugging must be enabled on the tablet.
+3. The Schnappix APK must be installed on the tablet.
+
+**Setup Command:**
+Run the following command in your terminal/command prompt while the tablet is connected:
+
+```bash
+adb shell dpm set-device-owner de.orfel.schnappix/expo.modules.kioskmode.AdminReceiver
+```
+
+If successful, the terminal will output `Success: Device owner set to package de.orfel.schnappix`. You can now safely disconnect the tablet and toggle the Kiosk Mode in the app's Admin Dashboard.
+
+*Note: Once set as Device Owner, the app cannot be uninstalled normally. You must either factory reset the device or implement a programmatic way to remove the active admin status.*
+
+---
+
 ## Photo Frames — Setup Guide
 
 Schnappix supports custom photo frame overlays. Frames are transparent PNG images that are layered on top of photos before saving or printing.

android/.gitignore

@@ -0,0 +1,16 @@
+# OSX
+#
+.DS_Store
+
+# Android/IntelliJ
+#
+build/
+.idea
+.gradle
+local.properties
+*.iml
+*.hprof
+.cxx/
+
+# Bundle artifacts
+*.jsbundle

android/app/build.gradle

@@ -0,0 +1,186 @@
+apply plugin: "com.android.application"
+apply plugin: "org.jetbrains.kotlin.android"
+apply plugin: "com.facebook.react"
+
+def projectRoot = rootDir.getAbsoluteFile().getParentFile().getAbsolutePath()
+
+/**
+ * This is the configuration block to customize your React Native Android app.
+ * By default you don't need to apply any configuration, just uncomment the lines you need.
+ */
+react {
+    entryFile = file(["node", "-e", "require('expo/scripts/resolveAppEntry')", projectRoot, "android", "absolute"].execute(null, rootDir).text.trim())
+    reactNativeDir = new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsoluteFile()
+    hermesCommand = new File(["node", "--print", "require.resolve('react-native/package.json')"].execute(null, rootDir).text.trim()).getParentFile().getAbsolutePath() + "/sdks/hermesc/%OS-BIN%/hermesc"
+    codegenDir = new File(["node", "--print", "require.resolve('@react-native/codegen/package.json', { paths: [require.resolve('react-native/package.json')] })"].execute(null, rootDir).text.trim()).getParentFile().getAbsoluteFile()
+
+    enableBundleCompression = (findProperty('android.enableBundleCompression') ?: false).toBoolean()
+    // Use Expo CLI to bundle the app, this ensures the Metro config
+    // works correctly with Expo projects.
+    cliFile = new File(["node", "--print", "require.resolve('@expo/cli', { paths: [require.resolve('expo/package.json')] })"].execute(null, rootDir).text.trim())
+    bundleCommand = "export:embed"
+
+    /* Folders */
+     //   The root of your project, i.e. where "package.json" lives. Default is '../..'
+    // root = file("../../")
+    //   The folder where the react-native NPM package is. Default is ../../node_modules/react-native
+    // reactNativeDir = file("../../node_modules/react-native")
+    //   The folder where the react-native Codegen package is. Default is ../../node_modules/@react-native/codegen
+    // codegenDir = file("../../node_modules/@react-native/codegen")
+
+    /* Variants */
+    //   The list of variants to that are debuggable. For those we're going to
+    //   skip the bundling of the JS bundle and the assets. By default is just 'debug'.
+    //   If you add flavors like lite, prod, etc. you'll have to list your debuggableVariants.
+    // debuggableVariants = ["liteDebug", "prodDebug"]
+
+    /* Bundling */
+    //   A list containing the node command and its flags. Default is just 'node'.
+    // nodeExecutableAndArgs = ["node"]
+
+    //
+    //   The path to the CLI configuration file. Default is empty.
+    // bundleConfig = file(../rn-cli.config.js)
+    //
+    //   The name of the generated asset file containing your JS bundle
+    // bundleAssetName = "MyApplication.android.bundle"
+    //
+    //   The entry file for bundle generation. Default is 'index.android.js' or 'index.js'
+    // entryFile = file("../js/MyApplication.android.js")
+    //
+    //   A list of extra flags to pass to the 'bundle' commands.
+    //   See https://github.com/react-native-community/cli/blob/main/docs/commands.md#bundle
+    // extraPackagerArgs = []
+
+    /* Hermes Commands */
+    //   The hermes compiler command to run. By default it is 'hermesc'
+    // hermesCommand = "$rootDir/my-custom-hermesc/bin/hermesc"
+    //
+    //   The list of flags to pass to the Hermes compiler. By default is "-O", "-output-source-map"
+    // hermesFlags = ["-O", "-output-source-map"]
+
+    /* Autolinking */
+    autolinkLibrariesWithApp()
+}
+
+/**
+ * Set this to true in release builds to optimize the app using [R8](https://developer.android.com/topic/performance/app-optimization/enable-app-optimization).
+ */
+def enableMinifyInReleaseBuilds = (findProperty('android.enableMinifyInReleaseBuilds') ?: false).toBoolean()
+
+/**
+ * The preferred build flavor of JavaScriptCore (JSC)
+ *
+ * For example, to use the international variant, you can use:
+ * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
+ *
+ * The international variant includes ICU i18n library and necessary data
+ * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
+ * give correct results when using with locales other than en-US. Note that
+ * this variant is about 6MiB larger per architecture than default.
+ */
+def jscFlavor = 'io.github.react-native-community:jsc-android:2026004.+'
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    buildToolsVersion rootProject.ext.buildToolsVersion
+    compileSdk rootProject.ext.compileSdkVersion
+
+    namespace 'de.orfel.schnappix'
+    defaultConfig {
+        applicationId 'de.orfel.schnappix'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 3
+        versionName "1.0.2"
+
+        buildConfigField "String", "REACT_NATIVE_RELEASE_LEVEL", "\"${findProperty('reactNativeReleaseLevel') ?: 'stable'}\""
+    }
+    signingConfigs {
+        debug {
+            storeFile file('debug.keystore')
+            storePassword 'android'
+            keyAlias 'androiddebugkey'
+            keyPassword 'android'
+        }
+    }
+    buildTypes {
+        debug {
+            signingConfig signingConfigs.debug
+        }
+        release {
+            // Caution! In production, you need to generate your own keystore file.
+            // see https://reactnative.dev/docs/signed-apk-android.
+            signingConfig signingConfigs.debug
+            def enableShrinkResources = findProperty('android.enableShrinkResourcesInReleaseBuilds') ?: 'false'
+            shrinkResources enableShrinkResources.toBoolean()
+            minifyEnabled enableMinifyInReleaseBuilds
+            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
+            def enablePngCrunchInRelease = findProperty('android.enablePngCrunchInReleaseBuilds') ?: 'true'
+            crunchPngs enablePngCrunchInRelease.toBoolean()
+        }
+    }
+    packagingOptions {
+        jniLibs {
+            def enableLegacyPackaging = findProperty('expo.useLegacyPackaging') ?: 'false'
+            useLegacyPackaging enableLegacyPackaging.toBoolean()
+        }
+    }
+    androidResources {
+        ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:!CVS:!thumbs.db:!picasa.ini:!*~'
+    }
+}
+
+// Apply static values from `gradle.properties` to the `android.packagingOptions`
+// Accepts values in comma delimited lists, example:
+// android.packagingOptions.pickFirsts=/LICENSE,**/picasa.ini
+["pickFirsts", "excludes", "merges", "doNotStrip"].each { prop ->
+    // Split option: 'foo,bar' -> ['foo', 'bar']
+    def options = (findProperty("android.packagingOptions.$prop") ?: "").split(",");
+    // Trim all elements in place.
+    for (i in 0..<options.size()) options[i] = options[i].trim();
+    // `[] - ""` is essentially `[""].filter(Boolean)` removing all empty strings.
+    options -= ""
+
+    if (options.length > 0) {
+        println "android.packagingOptions.$prop += $options ($options.length)"
+        // Ex: android.packagingOptions.pickFirsts += '**/SCCS/**'
+        options.each {
+            android.packagingOptions[prop] += it
+        }
+    }
+}
+
+dependencies {
+    // Added by withLocalAars plugin
+    implementation files("../../modules/usb-camera/android/libs/immersionbar-3.0.0.aar")
+    implementation files("../../modules/usb-camera/android/libs/webpdecoder-1.6.4.9.0.aar")
+
+    // The version of react-native is set by the React Native Gradle Plugin
+    implementation("com.facebook.react:react-android")
+
+    def isGifEnabled = (findProperty('expo.gif.enabled') ?: "") == "true";
+    def isWebpEnabled = (findProperty('expo.webp.enabled') ?: "") == "true";
+    def isWebpAnimatedEnabled = (findProperty('expo.webp.animated') ?: "") == "true";
+
+    if (isGifEnabled) {
+        // For animated gif support
+        implementation("com.facebook.fresco:animated-gif:${expoLibs.versions.fresco.get()}")
+    }
+
+    if (isWebpEnabled) {
+        // For webp support
+        implementation("com.facebook.fresco:webpsupport:${expoLibs.versions.fresco.get()}")
+        if (isWebpAnimatedEnabled) {
+            // Animated webp support
+            implementation("com.facebook.fresco:animated-webp:${expoLibs.versions.fresco.get()}")
+        }
+    }
+
+    if (hermesEnabled.toBoolean()) {
+        implementation("com.facebook.react:hermes-android")
+    } else {
+        implementation jscFlavor
+    }
+}

android/app/proguard-rules.pro

@@ -0,0 +1,14 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# react-native-reanimated
+-keep class com.swmansion.reanimated.** { *; }
+-keep class com.facebook.react.turbomodule.** { *; }
+
+# Add any project specific keep options here:

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+
+    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" tools:replace="android:usesCleartextTraffic" />
+</manifest>

android/app/src/debugOptimized/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+
+    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" tools:replace="android:usesCleartextTraffic" />
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,44 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+  <uses-permission android:name="android.permission.CAMERA"/>
+  <uses-permission android:name="android.permission.INTERNET"/>
+  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_AUDIO"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_VIDEO"/>
+  <uses-permission android:name="android.permission.READ_MEDIA_VISUAL_USER_SELECTED"/>
+  <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+  <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+  <uses-permission android:name="android.permission.VIBRATE"/>
+  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+  <uses-feature android:name="android.hardware.usb.host" android:required="false"/>
+  <queries>
+    <intent>
+      <action android:name="android.intent.action.VIEW"/>
+      <category android:name="android.intent.category.BROWSABLE"/>
+      <data android:scheme="https"/>
+    </intent>
+  </queries>
+  <application android:name=".MainApplication" android:label="@string/app_name" android:icon="@mipmap/ic_launcher" android:roundIcon="@mipmap/ic_launcher_round" android:allowBackup="true" android:theme="@style/AppTheme" android:supportsRtl="true" android:enableOnBackInvokedCallback="false" android:requestLegacyExternalStorage="true">
+    <meta-data android:name="expo.modules.updates.ENABLED" android:value="false"/>
+    <meta-data android:name="expo.modules.updates.EXPO_UPDATES_CHECK_ON_LAUNCH" android:value="ALWAYS"/>
+    <meta-data android:name="expo.modules.updates.EXPO_UPDATES_LAUNCH_WAIT_MS" android:value="0"/>
+    <activity android:name=".MainActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenSize|screenLayout|uiMode" android:launchMode="singleTask" android:windowSoftInputMode="adjustResize" android:theme="@style/Theme.App.SplashScreen" android:exported="true" android:screenOrientation="landscape">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN"/>
+        <category android:name="android.intent.category.LAUNCHER"/>
+      </intent-filter>
+      <intent-filter>
+        <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"/>
+      </intent-filter>
+      <meta-data android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" android:resource="@xml/device_filter"/>
+    </activity>
+    <receiver android:name="expo.modules.kioskmode.AdminReceiver" android:label="Schnappix Kiosk Admin" android:permission="android.permission.BIND_DEVICE_ADMIN" android:exported="true">
+      <meta-data android:name="android.app.device_admin" android:resource="@xml/device_admin_receiver"/>
+      <intent-filter>
+        <action android:name="android.app.action.DEVICE_ADMIN_ENABLED"/>
+        <action android:name="android.app.action.DEVICE_ADMIN_DISABLED"/>
+      </intent-filter>
+    </receiver>
+  </application>
+</manifest>

android/app/src/main/java/de/orfel/schnappix/MainActivity.kt

@@ -0,0 +1,61 @@
+package de.orfel.schnappix
+
+import android.os.Build
+import android.os.Bundle
+
+import com.facebook.react.ReactActivity
+import com.facebook.react.ReactActivityDelegate
+import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.fabricEnabled
+import com.facebook.react.defaults.DefaultReactActivityDelegate
+
+import expo.modules.ReactActivityDelegateWrapper
+
+class MainActivity : ReactActivity() {
+  override fun onCreate(savedInstanceState: Bundle?) {
+    // Set the theme to AppTheme BEFORE onCreate to support
+    // coloring the background, status bar, and navigation bar.
+    // This is required for expo-splash-screen.
+    setTheme(R.style.AppTheme);
+    super.onCreate(null)
+  }
+
+  /**
+   * Returns the name of the main component registered from JavaScript. This is used to schedule
+   * rendering of the component.
+   */
+  override fun getMainComponentName(): String = "main"
+
+  /**
+   * Returns the instance of the [ReactActivityDelegate]. We use [DefaultReactActivityDelegate]
+   * which allows you to enable New Architecture with a single boolean flags [fabricEnabled]
+   */
+  override fun createReactActivityDelegate(): ReactActivityDelegate {
+    return ReactActivityDelegateWrapper(
+          this,
+          BuildConfig.IS_NEW_ARCHITECTURE_ENABLED,
+          object : DefaultReactActivityDelegate(
+              this,
+              mainComponentName,
+              fabricEnabled
+          ){})
+  }
+
+  /**
+    * Align the back button behavior with Android S
+    * where moving root activities to background instead of finishing activities.
+    * @see <a href="https://developer.android.com/reference/android/app/Activity#onBackPressed()">onBackPressed</a>
+    */
+  override fun invokeDefaultOnBackPressed() {
+      if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
+          if (!moveTaskToBack(false)) {
+              // For non-root activities, use the default implementation to finish them.
+              super.invokeDefaultOnBackPressed()
+          }
+          return
+      }
+
+      // Use the default back button implementation on Android S
+      // because it's doing more than [Activity.moveTaskToBack] in fact.
+      super.invokeDefaultOnBackPressed()
+  }
+}

android/app/src/main/java/de/orfel/schnappix/MainApplication.kt

@@ -0,0 +1,56 @@
+package de.orfel.schnappix
+
+import android.app.Application
+import android.content.res.Configuration
+
+import com.facebook.react.PackageList
+import com.facebook.react.ReactApplication
+import com.facebook.react.ReactNativeApplicationEntryPoint.loadReactNative
+import com.facebook.react.ReactNativeHost
+import com.facebook.react.ReactPackage
+import com.facebook.react.ReactHost
+import com.facebook.react.common.ReleaseLevel
+import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint
+import com.facebook.react.defaults.DefaultReactNativeHost
+
+import expo.modules.ApplicationLifecycleDispatcher
+import expo.modules.ReactNativeHostWrapper
+
+class MainApplication : Application(), ReactApplication {
+
+  override val reactNativeHost: ReactNativeHost = ReactNativeHostWrapper(
+      this,
+      object : DefaultReactNativeHost(this) {
+        override fun getPackages(): List<ReactPackage> =
+            PackageList(this).packages.apply {
+              // Packages that cannot be autolinked yet can be added manually here, for example:
+              // add(MyReactNativePackage())
+            }
+
+          override fun getJSMainModuleName(): String = ".expo/.virtual-metro-entry"
+
+          override fun getUseDeveloperSupport(): Boolean = BuildConfig.DEBUG
+
+          override val isNewArchEnabled: Boolean = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED
+      }
+  )
+
+  override val reactHost: ReactHost
+    get() = ReactNativeHostWrapper.createReactHost(applicationContext, reactNativeHost)
+
+  override fun onCreate() {
+    super.onCreate()
+    DefaultNewArchitectureEntryPoint.releaseLevel = try {
+      ReleaseLevel.valueOf(BuildConfig.REACT_NATIVE_RELEASE_LEVEL.uppercase())
+    } catch (e: IllegalArgumentException) {
+      ReleaseLevel.STABLE
+    }
+    loadReactNative(this)
+    ApplicationLifecycleDispatcher.onApplicationCreate(this)
+  }
+
+  override fun onConfigurationChanged(newConfig: Configuration) {
+    super.onConfigurationChanged(newConfig)
+    ApplicationLifecycleDispatcher.onConfigurationChanged(this, newConfig)
+  }
+}

android/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,6 @@
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:drawable="@color/splashscreen_background"/>
+  <item>
+    <bitmap android:gravity="center" android:src="@drawable/splashscreen_logo"/>
+  </item>
+</layer-list>

android/app/src/main/res/drawable/rn_edit_text_material.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://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.
+-->
+<inset xmlns:android="http://schemas.android.com/apk/res/android"
+       android:insetLeft="@dimen/abc_edit_text_inset_horizontal_material"
+       android:insetRight="@dimen/abc_edit_text_inset_horizontal_material"
+       android:insetTop="@dimen/abc_edit_text_inset_top_material"
+       android:insetBottom="@dimen/abc_edit_text_inset_bottom_material"
+       >
+
+    <selector>
+        <!--
+          This file is a copy of abc_edit_text_material (https://bit.ly/3k8fX7I).
+          The item below with state_pressed="false" and state_focused="false" causes a NullPointerException.
+          NullPointerException:tempt to invoke virtual method 'android.graphics.drawable.Drawable android.graphics.drawable.Drawable$ConstantState.newDrawable(android.content.res.Resources)'
+
+          <item android:state_pressed="false" android:state_focused="false" android:drawable="@drawable/abc_textfield_default_mtrl_alpha"/>
+
+          For more info, see https://bit.ly/3CdLStv (react-native/pull/29452) and https://bit.ly/3nxOMoR.
+        -->
+        <item android:state_enabled="false" android:drawable="@drawable/abc_textfield_default_mtrl_alpha"/>
+        <item android:drawable="@drawable/abc_textfield_activated_mtrl_alpha"/>
+    </selector>
+
+</inset>

android/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/iconBackground"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/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/iconBackground"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/values-night/colors.xml

@@ -0,0 +1 @@
+<resources/>

android/app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<resources>
+  <color name="splashscreen_background">#FFFFFF</color>
+  <color name="iconBackground">#050510</color>
+  <color name="colorPrimary">#023c69</color>
+  <color name="colorPrimaryDark">#ffffff</color>
+</resources>

android/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+  <string name="app_name">Schnappix</string>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,11 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+  <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
+    <item name="android:enforceNavigationBarContrast" tools:targetApi="29">true</item>
+    <item name="android:editTextBackground">@drawable/rn_edit_text_material</item>
+    <item name="colorPrimary">@color/colorPrimary</item>
+    <item name="android:statusBarColor">#ffffff</item>
+  </style>
+  <style name="Theme.App.SplashScreen" parent="AppTheme">
+    <item name="android:windowBackground">@drawable/ic_launcher_background</item>
+  </style>
+</resources>

android/app/src/main/res/xml/device_admin_receiver.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-policies>
+        <force-lock />
+    </uses-policies>
+</device-admin>

android/app/src/main/res/xml/device_filter.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <usb-device class="239" subclass="2" />
+    <usb-device class="239" subclass="2" protocol="1" />
+    <usb-device class="239" subclass="2" protocol="2" />
+</resources>

android/build.gradle

@@ -0,0 +1,24 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+  repositories {
+    google()
+    mavenCentral()
+  }
+  dependencies {
+    classpath('com.android.tools.build:gradle')
+    classpath('com.facebook.react:react-native-gradle-plugin')
+    classpath('org.jetbrains.kotlin:kotlin-gradle-plugin')
+  }
+}
+
+allprojects {
+  repositories {
+    google()
+    mavenCentral()
+    maven { url 'https://www.jitpack.io' }
+  }
+}
+
+apply plugin: "expo-root-project"
+apply plugin: "com.facebook.react.rootproject"

android/gradle.properties

@@ -0,0 +1,68 @@
+# 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.
+# Default value: -Xmx512m -XX:MaxMetaspaceSize=256m
+org.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=512m
+
+# 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
+
+# Enable AAPT2 PNG crunching
+android.enablePngCrunchInReleaseBuilds=true
+
+# Use this property to specify which architecture you want to build.
+# You can also override it from the CLI using
+# ./gradlew <task> -PreactNativeArchitectures=x86_64
+reactNativeArchitectures=armeabi-v7a,arm64-v8a,x86,x86_64
+
+# Use this property to enable support to the new architecture.
+# This will allow you to use TurboModules and the Fabric render in
+# your application. You should enable this flag either if you want
+# to write custom TurboModules/Fabric components OR use libraries that
+# are providing them.
+newArchEnabled=true
+
+# Use this property to enable or disable the Hermes JS engine.
+# If set to false, you will be using JSC instead.
+hermesEnabled=true
+
+# Use this property to enable edge-to-edge display support.
+# This allows your app to draw behind system bars for an immersive UI.
+# Note: Only works with ReactActivity and should not be used with custom Activity.
+edgeToEdgeEnabled=true
+
+# Enable GIF support in React Native images (~200 B increase)
+expo.gif.enabled=true
+# Enable webp support in React Native images (~85 KB increase)
+expo.webp.enabled=true
+# Enable animated webp support (~3.4 MB increase)
+# Disabled by default because iOS doesn't support animated webp
+expo.webp.animated=false
+
+# Enable network inspector
+EX_DEV_CLIENT_NETWORK_INSPECTOR=true
+
+# Use legacy packaging to compress native libraries in the resulting APK.
+expo.useLegacyPackaging=false
+
+# Specifies whether the app is configured to use edge-to-edge via the app config or plugin
+# WARNING: This property has been deprecated and will be removed in Expo SDK 55. Use `edgeToEdgeEnabled` or `react.edgeToEdgeEnabled` to determine whether the project is using edge-to-edge.
+expo.edgeToEdgeEnabled=true
+
+android.targetSdkVersion=33
+android.extraMavenRepos=[{"url":"https://jitpack.io"}]

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

android/gradlew

@@ -0,0 +1,251 @@
+#!/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.
+#
+# 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, 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 "$JAVACMD" "$@"

android/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

android/settings.gradle

@@ -0,0 +1,39 @@
+pluginManagement {
+  def reactNativeGradlePlugin = new File(
+    providers.exec {
+      workingDir(rootDir)
+      commandLine("node", "--print", "require.resolve('@react-native/gradle-plugin/package.json', { paths: [require.resolve('react-native/package.json')] })")
+    }.standardOutput.asText.get().trim()
+  ).getParentFile().absolutePath
+  includeBuild(reactNativeGradlePlugin)
+  
+  def expoPluginsPath = new File(
+    providers.exec {
+      workingDir(rootDir)
+      commandLine("node", "--print", "require.resolve('expo-modules-autolinking/package.json', { paths: [require.resolve('expo/package.json')] })")
+    }.standardOutput.asText.get().trim(),
+    "../android/expo-gradle-plugin"
+  ).absolutePath
+  includeBuild(expoPluginsPath)
+}
+
+plugins {
+  id("com.facebook.react.settings")
+  id("expo-autolinking-settings")
+}
+
+extensions.configure(com.facebook.react.ReactSettingsExtension) { ex ->
+  if (System.getenv('EXPO_USE_COMMUNITY_AUTOLINKING') == '1') {
+    ex.autolinkLibrariesFromCommand()
+  } else {
+    ex.autolinkLibrariesFromCommand(expoAutolinking.rnConfigCommand)
+  }
+}
+expoAutolinking.useExpoModules()
+
+rootProject.name = 'Schnappix'
+
+expoAutolinking.useExpoVersionCatalog()
+
+include ':app'
+includeBuild(expoAutolinking.reactNativeGradlePlugin)

app.json

@@ -9,10 +9,10 @@
     "userInterfaceStyle": "dark",
     "ios": {
       "supportsTablet": true,
-      "bundleIdentifier": "com.schnappix"
+      "bundleIdentifier": "de.orfel.schnappix"
     },
     "android": {
-      "package": "com.schnappix",
+      "package": "de.orfel.schnappix",
       "versionCode": 3,
       "adaptiveIcon": {
         "backgroundColor": "#050510",

google_play_kiosk_declaration.md

@@ -0,0 +1,22 @@
+# Erklärung für Berechtigungen (Google Play Console)
+
+Wenn du die App im Google Play Store veröffentlichen möchtest, fordert Google möglicherweise eine Begründung für die Nutzung der Berechtigung `android.permission.BIND_DEVICE_ADMIN` und des `DeviceAdminReceiver` an.
+
+Nutze für die Play Console-Erklärung (Core Features / Permissions Declaration) am besten den folgenden Text (in Englisch, da die Reviewer das so am schnellsten verstehen):
+
+## Permission Justification
+
+**Permission Requested:** 
+`android.permission.BIND_DEVICE_ADMIN` (Device Admin / Device Owner)
+
+**Core Feature Justification:**
+*Schnappix is a specialized Photobooth (Event Photo) application designed to be used on tablets set up as unattended public kiosks at events (e.g., weddings, corporate parties). A core requirement for this specific use case is to prevent event guests from exiting the application, accessing system settings, or tampering with the device. To provide this true "Lock Task Mode" (Kiosk Mode) experience without system disruption, the app utilizes the Device Admin/Device Owner APIs. This feature is entirely optional for standard users but is an essential core feature for the intended event-organizer target audience.*
+
+**Video Demonstration (falls gefordert):**
+Mache ein kurzes Handy-Video (lade es auf YouTube als "Nicht gelistet" hoch), in dem du zeigst:
+1. Wie du in der App auf "Kiosk-Modus starten" klickst.
+2. Wie danach der Home-Button und die Statusleiste nicht mehr funktionieren.
+3. Dass dies für eine Fotobox-Situation essenziell ist.
+4. Wie du den Modus mit dem Admin-Passwort wieder ausschaltest.
+
+Füge den YouTube-Link bei der Google Play Einreichung mit hinzu. Das steigert die Akzeptanz-Chance enorm!

src/screens/AdminScreen.tsx

@@ -11,6 +11,7 @@ import {
   Modal,
   BackHandler,
   PanResponder,
+  Linking,
 } from 'react-native';
 import { LinearGradient } from 'expo-linear-gradient';
 import Animated, { FadeIn, FadeOut } from 'react-native-reanimated';
@@ -347,7 +348,7 @@ export default function AdminScreen({ currentSettings, onSave, onClose }: AdminS
             <Text style={styles.label}>Begrüßungstext</Text>
             <TextInput
               style={styles.input}
-              placeholder="Willkommen zu unserer Feier!"
+              placeholder="Zeit für ein Erinnerungsfoto!"
               placeholderTextColor={THEME.colors.textMuted}
               value={welcomeText}
               onChangeText={setWelcomeText}
@@ -357,7 +358,7 @@ export default function AdminScreen({ currentSettings, onSave, onClose }: AdminS
             <Text style={styles.label}>Subtext (Footer)</Text>
             <TextInput
               style={styles.input}
-              placeholder="ZUM STARTEN TIPPEN..."
+              placeholder="👆 Display tippen! • 😊 Lächeln! • 📸 Foto schnappen!"
               placeholderTextColor={THEME.colors.textMuted}
               value={footerText}
               onChangeText={setFooterText}
@@ -367,7 +368,7 @@ export default function AdminScreen({ currentSettings, onSave, onClose }: AdminS
             <Text style={styles.label}>Event-Name (wird auch im Datum-Sticker & Collage verwendet)</Text>
             <TextInput
               style={styles.input}
-              placeholder="z.B. Jannik's Party"
+              placeholder="Schnappix-Party"
               placeholderTextColor={THEME.colors.textMuted}
               value={eventText}
               onChangeText={setEventText}
@@ -662,7 +663,10 @@ export default function AdminScreen({ currentSettings, onSave, onClose }: AdminS
         </TouchableOpacity>
 
         <View style={{ alignItems: 'center', marginTop: 20, marginBottom: 40 }}>
-          <Text style={{ color: '#555', fontSize: 14 }}>App Version {appConfig.expo.version}</Text>
+          <Text style={{ color: '#555', fontSize: 14, marginBottom: 10 }}>App Version {appConfig.expo.version}</Text>
+          <TouchableOpacity onPress={() => Linking.openURL('https://schnappix.orfel.de')}>
+            <Text style={{ color: THEME.colors.accent, fontSize: 16, textDecorationLine: 'underline' }}>schnappix.orfel.de</Text>
+          </TouchableOpacity>
         </View>
       </ScrollView>
       

src/services/settings.ts

@@ -43,11 +43,11 @@ const DEFAULT_SETTINGS: AppSettings = {
   availableFrameIds: FRAMES.map(f => f.id),
   dateOverlay: 'off',
   dateOverlayTransform: { x: 0, y: 0, rotation: 0, scale: 1 },
-  eventText: '',
+  eventText: 'Schnappix-Party',
   burstCount: 1,
   burstIntervalSec: 5,
-  welcomeText: 'Willkommen zu unserer Feier!',
-  footerText: 'ZUM STARTEN TIPPEN • Fotos machen • Collage • Drucken',
+  welcomeText: 'Zeit für ein Erinnerungsfoto!',
+  footerText: '👆 Display tippen! • 😊 Lächeln! • 📸 Foto schnappen!',
   useFrontCamera: false,
   enableLogs: true,
 };

src/services/storage.ts

@@ -6,17 +6,18 @@ import * as FileSystem from 'expo-file-system';
  * @returns Promise<boolean> True if permissions are granted.
  */
 export async function requestStoragePermission(): Promise<boolean> {
-  const { status, canAskAgain } = await getPermissionsAsync();
+  const { status, canAskAgain } = await getPermissionsAsync(true);
   if (status === 'granted') {
     return true;
   }
   
   if (canAskAgain) {
-    const { status: newStatus } = await requestPermissionsAsync();
+    const { status: newStatus } = await requestPermissionsAsync(true);
     return newStatus === 'granted';
   }
   
-  return false;
+  // On Android 13+, writeOnly permissions don't block MediaStore inserts
+  return true;
 }
 
 function getFormattedDateTime(): string {
@@ -58,9 +59,9 @@ export async function saveToGallery(localUri: string, type: 'Raw' | 'Collage', e
   // 1. Create a media asset from the renamed file
   const asset = await createAssetAsync(newLocalUri);
   
-  // Define album name (e.g. "Schnappix/EventName/Originale")
+  // Define album name
   const subFolder = type === 'Raw' ? 'Originale' : 'Collagen';
-  const ALBUM_NAME = `Schnappix/${safeEventName}/${subFolder}`;
+  const ALBUM_NAME = `Schnappix - ${safeEventName} - ${subFolder}`;
   
   try {
     // 2. Check if the album already exists
@@ -68,31 +69,18 @@ export async function saveToGallery(localUri: string, type: 'Raw' | 'Collage', e
     
     if (!album) {
       // 3. If it doesn't exist, create it with our asset
-      await createAlbumAsync(ALBUM_NAME, asset, true);
+      await createAlbumAsync(ALBUM_NAME, asset, false);
       console.log(`Created new album "${ALBUM_NAME}" and copied photo.`);
     } else {
       // 4. If it exists, add our asset to it
-      await addAssetsToAlbumAsync([asset], album, true);
+      await addAssetsToAlbumAsync([asset], album, false);
       console.log(`Copied photo to existing album "${ALBUM_NAME}".`);
     }
     
     return asset.uri;
   } catch (e: any) {
-    console.error(`Error saving asset to album ${ALBUM_NAME}, trying fallback flat album name:`, e);
-    // Fallback if Android blocks slashes in album names
-    const fallbackAlbumName = `Schnappix - ${safeEventName} - ${subFolder}`;
-    try {
-      const fallbackAlbum = await getAlbumAsync(fallbackAlbumName);
-      if (!fallbackAlbum) {
-        await createAlbumAsync(fallbackAlbumName, asset, true);
-      } else {
-        await addAssetsToAlbumAsync([asset], fallbackAlbum, true);
-      }
-      return asset.uri;
-    } catch (fallbackErr) {
-      console.error('Fallback album also failed, returning asset URI anyway:', fallbackErr);
-      return asset.uri;
-    }
+    console.error(`Error saving asset to album ${ALBUM_NAME}:`, e);
+    return asset.uri;
   } finally {
     // Cleanup our temp renamed file
     try {