[android] Simplify TTS code using AudioManagerCompat

Signed-off-by: Isira Seneviratne <31027858+Isira-Seneviratne@users.noreply.github.com>

android/gradle/libs.versions.toml

@@ -20,6 +20,7 @@ androidx-preference = { module = "androidx.preference:preference", version = "1.
 androidx-recyclerview = { module = "androidx.recyclerview:recyclerview", version = "1.4.0" }
 androidx-work-runtime = { module = "androidx.work:work-runtime", version = "2.10.5" }
 androidx-lifecycle-process = { module = "androidx.lifecycle:lifecycle-process", version = "2.9.4" }
+androidx-media = { module = "androidx.media:media", version = "1.7.1" }
 android-material = { module = "com.google.android.material:material", version = "1.12.0" }
 google-guava = { module = "com.google.guava:guava", version = "33.4.8-android" }
 appdevnext-androidchart = { module = "com.github.AppDevNext:AndroidChart", version = "3.1.0.31" }

android/sdk/build.gradle

@@ -122,6 +122,7 @@ dependencies {
   implementation libs.androidx.annotation
   implementation libs.androidx.fragment
   implementation libs.androidx.lifecycle.process
+  implementation libs.androidx.media
   implementation libs.androidx.recyclerview
   implementation libs.android.material
 

android/sdk/src/main/java/app/organicmaps/sdk/sound/TtsPlayer.java

@@ -2,6 +2,7 @@ package app.organicmaps.sdk.sound;
 
 import android.content.Context;
 import android.database.ContentObserver;
+import android.media.AudioManager;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -12,6 +13,10 @@ import android.text.TextUtils;
 import android.util.Pair;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+import androidx.media.AudioAttributesCompat;
+import androidx.media.AudioFocusRequestCompat;
+import androidx.media.AudioManagerCompat;
 import app.organicmaps.sdk.util.Config;
 import app.organicmaps.sdk.util.concurrency.UiThread;
 import app.organicmaps.sdk.util.log.Logger;
@@ -51,7 +56,16 @@ public enum TtsPlayer
   private TextToSpeech mTts;
   private boolean mInitializing;
   private boolean mReloadTriggered = false;
-  private AudioFocusManager mAudioFocusManager;
+
+  private final AudioFocusRequestCompat mAudioFocusRequest =
+      new AudioFocusRequestCompat.Builder(AudioManagerCompat.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK)
+          .setAudioAttributes(new AudioAttributesCompat.Builder()
+                                  .setUsage(AudioAttributesCompat.USAGE_ASSISTANCE_NAVIGATION_GUIDANCE)
+                                  .setContentType(AudioAttributesCompat.CONTENT_TYPE_SPEECH)
+                                  .build())
+          .setOnAudioFocusChangeListener(focusChange -> {})
+          .build();
+  private AudioManager mAudioManager;
 
   private final Bundle mParams = new Bundle();
 
@@ -167,29 +181,29 @@ public enum TtsPlayer
         @Override
         public void onStart(String utteranceId)
         {
-          mAudioFocusManager.requestAudioFocus();
+          AudioManagerCompat.requestAudioFocus(mAudioManager, mAudioFocusRequest);
         }
 
         @Override
         public void onDone(String utteranceId)
         {
-          mAudioFocusManager.releaseAudioFocus();
+          AudioManagerCompat.abandonAudioFocusRequest(mAudioManager, mAudioFocusRequest);
         }
 
         @Override
         @SuppressWarnings("deprecated") // abstract method must be implemented
         public void onError(String utteranceId)
         {
-          mAudioFocusManager.releaseAudioFocus();
+          AudioManagerCompat.abandonAudioFocusRequest(mAudioManager, mAudioFocusRequest);
         }
 
         @Override
         public void onError(String utteranceId, int errorCode)
         {
-          mAudioFocusManager.releaseAudioFocus();
+          AudioManagerCompat.abandonAudioFocusRequest(mAudioManager, mAudioFocusRequest);
         }
       });
-      mAudioFocusManager = new AudioFocusManager(context);
+      mAudioManager = ContextCompat.getSystemService(context, AudioManager.class);
       mParams.putFloat(TextToSpeech.Engine.KEY_PARAM_VOLUME, Config.TTS.getVolume());
       mInitializing = false;
       if (mReloadTriggered && sOnReloadCallback != null)
@@ -230,12 +244,10 @@ public enum TtsPlayer
     if (Config.TTS.isEnabled())
       try
       {
-        boolean isMusicActive = mAudioFocusManager.requestAudioFocus();
+        final boolean isMusicActive = mAudioManager.isMusicActive();
-        if (isMusicActive)
+        AudioManagerCompat.requestAudioFocus(mAudioManager, mAudioFocusRequest);
-          delayHandler.postDelayed(
+        final long delay = isMusicActive ? TTS_SPEAK_DELAY_MILLIS : 0;
-              () -> mTts.speak(textToSpeak, TextToSpeech.QUEUE_ADD, mParams, textToSpeak), TTS_SPEAK_DELAY_MILLIS);
+        delayHandler.postDelayed(() -> mTts.speak(textToSpeak, TextToSpeech.QUEUE_ADD, mParams, textToSpeak), delay);
-        else
-          mTts.speak(textToSpeak, TextToSpeech.QUEUE_ADD, mParams, textToSpeak);
       }
       catch (IllegalArgumentException e)
       {
@@ -255,7 +267,7 @@ public enum TtsPlayer
     if (isReady())
       try
       {
-        mAudioFocusManager.releaseAudioFocus();
+        AudioManagerCompat.abandonAudioFocusRequest(mAudioManager, mAudioFocusRequest);
         mTts.stop();
       }
       catch (IllegalArgumentException e)