如何从电话，电话扬声器，耳机或蓝牙设备切换音频输出

问题描述

我正在尝试在我的应用中的不同来源之间切换音频来源.我们使用第三方视频库，并使用AudioManager播放声音.现在，我们尝试使用UI选项在手机听筒，手机扬声器，耳机/蓝牙(已连接)之间进行音频输出之间进行选择.就像我们在电话"应用中看到的一样(当有多个音频输出源可用时，电话，扬声器，蓝牙).

Im trying to switch the audio source between different source in my app. We use a 3rd party Video Library and use AudioManager to play the sound. Now we are trying to have a UI option to select between audio output between Phone ear piece, Phone Speaker, Headphones/ Bluetooth (is any connected).Like we see in Phone Call app (when multiple audio output sources are available phone, speaker, bluetooth).

推荐答案

Got it working:                                                                                                      'if(false) {
            //For BT
            mAudioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
            mAudioManager.startBluetoothSco();
            mAudioManager.setBluetoothScoOn(true);
        } else if(true) {
            //For phone ear piece
            mAudioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
            mAudioManager.stopBluetoothSco();
            mAudioManager.setBluetoothScoOn(false);
            mAudioManager.setSpeakerphoneOn(false);
        } else {
            //For phone speaker(loudspeaker)
            mAudioManager.setMode(AudioManager.MODE_NORMAL);
            mAudioManager.stopBluetoothSco();
            mAudioManager.setBluetoothScoOn(false);
            mAudioManager.setSpeakerphoneOn(true);
        }

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