android - Android 同时播放音频和录制音频

Question

如何同时录制音频和播放声音。哪个进程最好在后台实现，使用什么线程或异步任务？我曾尝试在新线程中播放声音并在主线程上录制，但我遇到的问题是在某些设备上我收到主线程过载的错误。

使用本机 rocordning 是否更好，因为我还需要记录缓冲区？

有没有人有任何例子如何使用本机录音？

Answer 1

您可以使用以下自定义类：-

package com.app.controller;

导入android.content.Context；导入android.media.MediaPlayer；导入 android.media.MediaPlayer.OnPreparedListener；导入android.net.Uri；导入 android.provider.SyncStateContract.Constants；导入 android.widget.Toast；

公共类 MediaController 实现 OnPreparedListener{

public MediaController() {
    // TODO Auto-generated constructor stub
}

public MediaPlayer mp;

public void getMediaPlayObject() {

    try {
        System.out.println("00000000000000");
        mp = new MediaPlayer();

        System.out.println("2222222222");
    } catch (Exception e) {
        // TODO: handle exception
        System.out.println("exception in audia player====" + e.toString());
    }
}

public void onPrepared(MediaPlayer player) {
    mp.start();
}

boolean WORKING = true;

public void mediaPlayStart(final Context m_Context) {
    try {
        mp = new MediaPlayer();

        mp.setDataSource(m_Context, Uri.parse(Contants.audioURL_OR_PATH));
        mp.prepare();
        mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mp.setLooping(true);



    } catch (Exception e) {
        // TODO: handle exception
        Toast.makeText(m_Context, "Service unavailable this time. Please try again!", Toast.LENGTH_LONG).show();
        System.out.println("#####THE EXCEPTION IN THE MEDIA PLAYER PLAY==="+e.getMessage());
    }
}

public void mediaPlayStop() {
    try {
        if (mp.isPlaying()) {
            mp.stop();
        }
    } catch (Exception e) {
        // TODO: handle exception
    }
}

private static String getSoundPath(int countPositiong) {
    // TODO Auto-generated method stub

    String aa = "";

    try {
        if (countPositiong < 10) {
            aa = "sounds/00" + countPositiong + ".mp4";
        } else if (countPositiong < 100) {
            aa = "sounds/0" + countPositiong + ".mp4";
        } else {
            aa = "sounds/" + countPositiong + ".mp4";
        }
    } catch (Exception e) {
        // TODO: handle exception
    }
    System.out.println("name is : " + aa);
    return aa;

}

}