fixed the_stream_is_down not playing (IMPORTANT). Shrink release APK.

app/build.gradle

     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
 
     implementation "androidx.media:media:1.1.0"
     implementation 'com.google.android.exoplayer:exoplayer:2.11.0'
-    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.1.0'
 
     // RSS parser library @ https://github.com/prof18/RSS-Parser
     implementation 'com.prof.rssparser:rssparser:2.0.4'
 
-    def work_version = "2.2.0"
-    implementation "androidx.work:work-runtime-ktx:$work_version"
-
-
     // new implems
     implementation deps.kotlin.stdlib
     implementation deps.support.app_compat

app/src/main/java/fr/forum_thalie/tsumugi/RadioService.kt

             {
                 Thread.sleep(1000)
                 i++
+                Log.d(tag, "$i, isAlarmStopped=$isAlarmStopped")
             }
         }
         val post: (Any?) -> Unit = {
     // stop playing but keep the notification.
     fun stopPlaying()
     {
-        isAlarmStopped = true
         if (mediaSession.controller.playbackState.state == PlaybackStateCompat.STATE_STOPPED)
             return // nothing to do here
+
+        if (PlayerStore.instance.playbackState.value == PlaybackStateCompat.STATE_PLAYING)
+            isAlarmStopped = true
+
         PlayerStore.instance.playbackState.value = PlaybackStateCompat.STATE_STOPPED
 
         // STOP THE PLAYBACK

app/src/main/java/fr/forum_thalie/tsumugi/playerstore/Song.kt

                 title.value = data.substring(hyphenPos + 3)
         } catch (e: Exception) {
             if (artist.value != "")
-                artist.value = ""
+                artist.postValue("")
             if (title.value != data)
-                title.value = data
+                title.postValue(data)
         }
     }