[BGF] audio stream can not switch to earpiece fixed.

Author: oOJohn6Oo

Android/APIExample/app/src/main/java/io/agora/api/example/examples/basic/JoinChannelAudio.java

@@ -72,6 +72,7 @@ public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceStat
         mute = view.findViewById(R.id.microphone);
         mute.setOnClickListener(this);
         speaker = view.findViewById(R.id.btn_speaker);
+        speaker.setActivated(true);
         speaker.setOnClickListener(this);
     }
 
@@ -195,9 +196,10 @@ else if (v.getId() == R.id.microphone)
         else if (v.getId() == R.id.btn_speaker)
         {
             speaker.setActivated(!speaker.isActivated());
-            speaker.setText(getString(speaker.isActivated() ? R.string.earpiece : R.string.speaker));
+            speaker.setText(getString(!speaker.isActivated() ? R.string.earpiece : R.string.speaker));
             /**Turn off / on the speaker and change the audio playback route.*/
             engine.setEnableSpeakerphone(speaker.isActivated());
+            engine.setDefaultAudioRoutetoSpeakerphone(speaker.isActivated());
         }
     }