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Для того, чтобы одновременно проигрывать в гарнитуру и поток с сервера, и локальный медиафайл с устройства, необходимо установить атрибут AudioAttributes.USAGE_VOICE_COMMUNICATION и запросить аудио фокус для медиаплеера, например

Code Block
languagejava
themeRDark
                                                        /**
                                                         * Audio focus example
                                                         */
                                                        MediaPlayer music playStream.play();

= MediaPlayer.create(getBaseContext(), R.raw.sound1);
                                                        /**
music.setAudioAttributes(
                                                           *   Audio focus example
new AudioAttributes.Builder()
                                                               */     .setUsage(AudioAttributes.USAGE_VOICE_COMMUNICATION)
                                                        MediaPlayer music = MediaPlayer.create(getBaseContext(), R.raw.sound1            .build());
                                                        music.start();
                                                        AudioManager.OnAudioFocusChangeListener audioFocusChangeListener = new AudioManager.OnAudioFocusChangeListener() {
                                                            @Override
                                                            public void onAudioFocusChange(int focusChange) {
                                                                Log.d("AudioFocus,", "onAudioFocusChange="+focusChange);
                                                                music.setVolume(1, 1);
                                                            }
                                                        };
                                                        // Request audio focus for playback
                                                        int requestResult = Flashphoner.getAudioManager().getAudioManager().requestAudioFocus(audioFocusChangeListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN);
                                                        Log.d("AudioFocus,", "requestResult="+requestResult);
                                                        // Abandon audio focus when playback complete
                                                        music.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                                                            @Override
                                                            public void onCompletion(MediaPlayer mp) {
                                                                Flashphoner.getAudioManager().getAudioManager().abandonAudioFocus(audioFocusChangeListener);
                                                            }
                                                        });