Fix running service lead to sticky notification

Stop service started using `BackgroundMode` before new video is played in foreground.

app/src/main/java/com/github/libretube/ui/fragments/PlayerFragment.kt

@@ -1,7 +1,6 @@
 package com.github.libretube.ui.fragments
 
 import android.annotation.SuppressLint
-import android.app.ActivityManager
 import android.app.PictureInPictureParams
 import android.content.Context
 import android.content.pm.ActivityInfo
@@ -195,6 +194,9 @@ class PlayerFragment : BaseFragment(), OnlinePlayerOptions {
         super.onViewCreated(view, savedInstanceState)
         context?.hideKeyboard(view)
 
+        // Stop [BackgroundMode] service if it is running.
+        BackgroundHelper.stopBackgroundPlay(requireContext())
+
         // clear the playing queue
         PlayingQueue.resetToDefaults()
 
@@ -315,6 +317,8 @@ class PlayerFragment : BaseFragment(), OnlinePlayerOptions {
         }
 
         binding.playImageView.setOnClickListener {
+            // Stop [BackgroundMode] service if it is running.
+            BackgroundHelper.stopBackgroundPlay(requireContext())
             if (!exoPlayer.isPlaying) {
                 // start or go on playing
                 binding.playImageView.setImageResource(R.drawable.ic_pause)
@@ -1398,22 +1402,11 @@ class PlayerFragment : BaseFragment(), OnlinePlayerOptions {
             return false
         }
 
-        val backgroundModeRunning = isServiceRunning(requireContext(), BackgroundMode::class.java)
+        val backgroundModeRunning = BackgroundHelper.isServiceRunning(requireContext(), BackgroundMode::class.java)
 
         return exoPlayer.isPlaying && !backgroundModeRunning
     }
 
-    private fun isServiceRunning(context: Context, serviceClass: Class<*>): Boolean {
-        val manager = context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
-        @Suppress("DEPRECATION")
-        for (service in manager.getRunningServices(Int.MAX_VALUE)) {
-            if (serviceClass.name == service.service.className) {
-                return true
-            }
-        }
-        return false
-    }
-
     override fun onConfigurationChanged(newConfig: Configuration) {
         super.onConfigurationChanged(newConfig)
 

app/src/main/java/com/github/libretube/util/BackgroundHelper.kt

@@ -1,5 +1,6 @@
 package com.github.libretube.util
 
+import android.app.ActivityManager
 import android.content.Context
 import android.content.Intent
 import android.os.Build
@@ -10,6 +11,11 @@ import com.github.libretube.services.BackgroundMode
  * Helper for starting a new Instance of the [BackgroundMode]
  */
 object BackgroundHelper {
+
+    /**
+     * Start the foreground service [BackgroundMode] to play in background. [position]
+     * is seek to position specified in milliseconds in the current [videoId].
+     */
     fun playOnBackground(
         context: Context,
         videoId: String,
@@ -29,4 +35,29 @@ object BackgroundHelper {
             context.startService(intent)
         }
     }
+
+    /**
+     * Stop the [BackgroundMode] service if it is running.
+     */
+    fun stopBackgroundPlay(context: Context) {
+        if (!isServiceRunning(context, BackgroundMode::class.java)) return
+
+        // Intent to stop background mode service
+        val intent = Intent(context, BackgroundMode::class.java)
+        context.stopService(intent)
+    }
+
+    /**
+     * Check if the given service as [serviceClass] is currently running.
+     */
+    fun isServiceRunning(context: Context, serviceClass: Class<*>): Boolean {
+        val manager = context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
+        @Suppress("DEPRECATION")
+        for (service in manager.getRunningServices(Int.MAX_VALUE)) {
+            if (serviceClass.name == service.service.className) {
+                return true
+            }
+        }
+        return false
+    }
 }