Require Android 6 at minimum (API 23)

app/src/main/java/org/jellyfin/mobile/bridge/NativeInterface.kt

@@ -57,7 +57,7 @@ class NativeInterface(private val context: Context) : KoinComponent {
         val clientInfo = apiClient.clientInfo
 
         buildJsonObject {
-            put("deviceId", deviceInfo.id.toString())
+            put("deviceId", deviceInfo.id)
             // normalize the name by removing special characters
             // and making sure it's at least 1 character long
             // otherwise the webui will fail to send it to the server

app/src/main/java/org/jellyfin/mobile/utils/AndroidVersion.kt

@@ -10,14 +10,6 @@ import android.os.Build
  * @see Build.VERSION.SDK_INT
  */
 object AndroidVersion {
-    /**
-     * Checks whether the current Android version is at least Android 6 Marshmallow, API 23.
-     *
-     * @see Build.VERSION_CODES.M
-     */
-    inline val isAtLeastM: Boolean
-        get() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
-
     /**
      * Checks whether the current Android version is at least Android 7 Nougat, API 24.
      *

app/src/main/java/org/jellyfin/mobile/utils/Constants.kt

@@ -62,10 +62,7 @@ object Constants {
     const val PLAYBACK_MANAGER_COMMAND_VOL_DOWN = "volumeDown"
 
     // Notification
-    val PENDING_INTENT_FLAGS = PendingIntent.FLAG_UPDATE_CURRENT or when {
-        AndroidVersion.isAtLeastM -> PendingIntent.FLAG_IMMUTABLE
-        else -> 0
-    }
+    const val PENDING_INTENT_FLAGS = PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
     const val MEDIA_NOTIFICATION_CHANNEL_ID = "org.jellyfin.mobile.media.NOW_PLAYING"
     const val DOWNLOAD_NOTIFICATION_CHANNEL_ID = "org.jellyfin.mobile.download.DOWNLOAD_PROGRESS"
 

app/src/main/java/org/jellyfin/mobile/utils/SystemUtils.kt

@@ -33,26 +33,24 @@ import java.util.UUID
 import kotlin.coroutines.resume
 
 fun WebViewFragment.requestNoBatteryOptimizations(rootView: CoordinatorLayout) {
-    if (AndroidVersion.isAtLeastM) {
-        val powerManager = requireContext().getSystemService(Activity.POWER_SERVICE) as PowerManager
-        if (
-            !appPreferences.ignoreBatteryOptimizations &&
-            !powerManager.isIgnoringBatteryOptimizations(BuildConfig.APPLICATION_ID)
-        ) {
-            Snackbar.make(rootView, R.string.battery_optimizations_message, Snackbar.LENGTH_INDEFINITE).apply {
-                setAction(android.R.string.ok) {
-                    try {
-                        val intent = Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS)
-                        startActivity(intent)
-                    } catch (e: ActivityNotFoundException) {
-                        Timber.e(e)
-                    }
-
-                    // Ignore after the user interacted with the snackbar at least once
-                    appPreferences.ignoreBatteryOptimizations = true
+    val powerManager = requireContext().getSystemService(Activity.POWER_SERVICE) as PowerManager
+    if (
+        !appPreferences.ignoreBatteryOptimizations &&
+        !powerManager.isIgnoringBatteryOptimizations(BuildConfig.APPLICATION_ID)
+    ) {
+        Snackbar.make(rootView, R.string.battery_optimizations_message, Snackbar.LENGTH_INDEFINITE).apply {
+            setAction(android.R.string.ok) {
+                try {
+                    val intent = Intent(Settings.ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS)
+                    startActivity(intent)
+                } catch (e: ActivityNotFoundException) {
+                    Timber.e(e)
                 }
-                show()
+
+                // Ignore after the user interacted with the snackbar at least once
+                appPreferences.ignoreBatteryOptimizations = true
             }
+            show()
         }
     }
 }

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 # Android
 android-compileSdk = "36"
-android-minSdk = "21"
+android-minSdk = "23"
 android-targetSdk = "36"
 
 # Plugins