Merge development into master for v2.0.0 release

Author: s4rify

CHANGELOG.md

@@ -0,0 +1,62 @@
+# Changelog
+
+All notable changes to SENDA are documented in this file.
+
+## [v2.0.0] – 2026-05-22
+
+This is a major release representing a complete overhaul of the SENDA codebase
+and a significant expansion of features since v1.3.0.
+
+### Breaking changes
+- The app has been **fully rewritten in Kotlin** (previously Java). The minimum
+  supported Android version remains Android 11.
+- The internal package structure was reorganised for improved modularity.
+
+### New features
+- **Dark theme** support (follows system setting).
+- **In-app tutorial** with multiple pages guiding new users through setup.
+- **About dialog** accessible from the action bar.
+- **Movella DOT** sensor support: connects once on discovery to resolve the
+  human-readable name, then reconnects for measurement.
+
+### Improvements & refactoring
+- Migrated to **MVVM architecture** with ViewModel and Repository pattern.
+- Foreground service and wakelock handling refactored for `targetSdk 34+`.
+- Permissions handling streamlined; new transient *starting* / *stopping*
+  UI states provide clearer feedback.
+- **16 KB ELF page-size compatibility**: native code compiled with the required
+  alignment flags (Google Play requirement since November 2025). Note that the
+  bundled Movella SDK library is not yet compatible.
+- Main layout simplified to `LinearLayout`; old landscape / splash layouts and
+  unused preference XMLs removed.
+- `compileSdk` / `targetSdk` raised to **35**; NDK updated to **r28**.
+- Gradle plugin updated to **8.1.2 / 8.10**; `setup-gradle` action bumped; CI
+  workflow split into separate debug and release APK jobs.
+- LSL service start/stop made concurrency-safe.
+- LocationBridge crash on startup fixed.
+- MainActivity crash fixed by lazy-initialising the ViewModel.
+- Sensor outlet race condition fixed (sensor stream now starts only after the
+  LSL outlet is initialised).
+- Unit test added for `MainViewModel`.
+- App correctly stops the foreground service when swiped away from recents.
+
+### UI / UX
+- Stream availability status text updated.
+- Layout margins adjusted in `activity_main.xml`.
+- Settings/gear menu icon removed (no configurable settings at this time).
+- Tutorial layout constraints and text corrected.
+
+### Build & CI
+- APK signed correctly via GitHub Actions using repository secrets.
+- Separate CI jobs for debug builds (feature branches) and signed release APKs
+  (master branch).
+- Signing configuration now checks for keystore existence before applying
+  settings, preventing local-build failures.
+
+---
+
+## [v1.3.0] – see [NeuropsyOL/SENDA](https://github.com/NeuropsyOL/SENDA/releases/tag/v1.3.0)
+
+Previous releases are tagged in the public repository at
+https://github.com/NeuropsyOL/SENDA/releases.
+

README.md

@@ -7,6 +7,7 @@ SENDA (Sensor Data Streamer) is an android application to stream real-time senso
 ## Features 
 The following sensors are included: 
 - Accelerometer
+- Gyroscope
 - Light
 - Proximity
 - Gravity
@@ -16,6 +17,10 @@ The following sensors are included:
 - Location
 - Movella DOT (via Bluetooth)
 
+Additional capabilities:
+- Dark theme (follows system setting)
+- In-app setup tutorial
+
 ## Data formats
 
 ### Location
@@ -52,9 +57,9 @@ On newer versions of Android, it may be necessary to prevent the system from lim
 ## Development
 
 ### Prerequisites
-- Android Studio Giraffe | 2022.3.1 Patch 2
-- Android API 34 SDK platform
-- Android NDK 25.2.9519653
+- Android Studio Meerkat | 2024.3.1 (or newer)
+- Android API 35 SDK platform
+- Android NDK r28 (28.0.12433566)
 - CMake 3.22.1
 
 Other versions may work, the above listed versions are the ones used for development and testing.

app/build.gradle

@@ -6,7 +6,14 @@ plugins {
     id 'org.jetbrains.kotlin.plugin.parcelize'
 }
 
-def appVersionName = "1.3"
+def appVersionMajorMinor = "2.0"
+// GITHUB_RUN_NUMBER is set automatically by GitHub Actions on every CI run.
+// Locally it is unset, so we fall back to 0 (which triggers the local defaults below).
+def ciBuildNumber = (System.getenv("GITHUB_RUN_NUMBER") ?: "0").toInteger()
+// versionCode must always increase. Offset by 300 so v2.0 CI run #1 (→ 301)
+// is greater than all v1.x builds (which used offset 200).
+def appVersionCode = ciBuildNumber > 0 ? (300 + ciBuildNumber) : 200
+def appVersionName  = ciBuildNumber > 0 ? "${appVersionMajorMinor}.${ciBuildNumber}" : "${appVersionMajorMinor}-local"
 
 // AGP 9 removed setProperty("archivesBaseName") from defaultConfig.
 // The replacement is the project-level base extension.
@@ -25,7 +32,7 @@ android {
         applicationId "de.uol.neuropsy.senda"
         minSdkVersion 30
         targetSdkVersion 35
-        versionCode 109
+        versionCode appVersionCode
         versionName appVersionName
     }
 

app/src/main/java/de/uol/neuropsy/senda/ui/main/MainActivity.kt

@@ -119,9 +119,6 @@ class MainActivity : AppCompatActivity() {
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         return when (item.itemId) {
-            R.id.action_settings -> {
-                true
-            }
             R.id.action_tutorial -> {
                 val intent = Intent(this, TutorialActivity::class.java)
                 startActivity(intent)

app/src/main/res/menu/menu_main.xml

@@ -8,11 +8,6 @@
         android:title="Show tutorial"
         app:showAsAction="always"/>
 
-    <!-- Settings -->
-    <item android:id="@+id/action_settings"
-        android:title="Settings"
-        android:icon="@drawable/settings_24"
-        app:showAsAction="always"/>
 
     <!-- About, must always be in the overflow. -->
     <item android:id="@+id/action_about"