Android语音录制的代码，android语音录制,使用MediaRecor
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Android语音录制的代码，android语音录制,使用MediaRecor
使用MediaRecorder的步骤： 1、创建MediaRecorder对象 2、调用MediRecorder对象的setAudioSource()方法设置声音的来源，一般传入MediaRecorder.MIC 3、调用MediaRecorder对象的setOutputFormat()设置所录制的音频文件的格式 4、调用MediaRecorder对象的setAudioRncoder()、setAudioEncodingBitRate(int bitRate)、setAudioSamlingRate(int SamplingRate)设置所录音的编码格式、编码位率、采样率等， 5、调用MediaRecorder对象的setOutputFile(String path)方法设置录制的音频文件的保存位置 6、调用MediaRecoder对象的Prepare()方法准备录制 7、调用MediaRecoder对象的start()方法开始录制 8、调用MediaRecoder对象的stop()方法停止录制，并调用release()方法释放资源 -。启用权限 <uses-permission android:name="android.permission.MOUNT_FORMAT_FILESYSTEMS"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.RECORD_AUDIO"/> 布局就不用说了 ，附上代码吧 主要代码： public class MainActivity extends Activity implements OnClickListener { private Button start; private Button stop; private ListView listView; // 录音文件播放 private MediaPlayer myPlayer; // 录音 private MediaRecorder myRecorder; // 音频文件保存地址 private String path; private String paths = path; private File saveFilePath; // 所录音的文件 String[] listFile = null; ShowRecorderAdpter showRecord; AlertDialog aler = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); start = (Button) findViewById(R.id.start); stop = (Button) findViewById(R.id.stop); listView = (ListView) findViewById(R.id.list); myPlayer = new MediaPlayer(); myRecorder = new MediaRecorder(); // 从麦克风源进行录音 myRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT); // 设置输出格式 myRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); // 设置编码格式 myRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); showRecord = new ShowRecorderAdpter(); if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { try { path = Environment.getExternalStorageDirectory() .getCanonicalPath().toString() + "/RECORDERS"; File files = new File(path); if (!files.exists()) { files.mkdir(); } listFile = files.list(); } catch (IOException e) { e.printStackTrace(); } } start.setOnClickListener(this); stop.setOnClickListener(this); if (listFile != null) { listView.setAdapter(showRecord); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); return true; } class ShowRecorderAdpter extends BaseAdapter { @Override public int getCount() { return listFile.length; } @Override public Object getItem(int arg0) { return arg0; } @Override public long getItemId(int arg0) { return arg0; } @Override public View getView(final int postion, View arg1, ViewGroup arg2) { View views = LayoutInflater.from(MainActivity.this).inflate( R.layout.list_show_filerecorder, null); TextView filename = (TextView) views .findViewById(R.id.show_file_name); Button plays = (Button) views.findViewById(R.id.bt_list_play); Button stop = (Button) views.findViewById(R.id.bt_list_stop); filename.setText(listFile[postion]); // 播放录音 plays.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { try { myPlayer.reset(); myPlayer.setDataSource(path + "/" + listFile[postion]); if (!myPlayer.isPlaying()) { myPlayer.prepare(); myPlayer.start(); } else { myPlayer.pause(); } } catch (IOException e) { e.printStackTrace(); } } }); // 停止播放 stop.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { if (myPlayer.isPlaying()) { myPlayer.stop(); } } }); return views; } } @Override public void onClick(View v) { switch (v.getId()) { case R.id.start: final EditText filename = new EditText(this); Builder alerBuidler = new Builder(this); alerBuidler .setTitle("请输入要保存的文件名") .setView(filename) .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String text = filename.getText().toString(); try { paths = path + "/" + text + new SimpleDateFormat( "yyyyMMddHHmmss").format(System .currentTimeMillis()) + ".amr"; saveFilePath = new File(paths); Log.e("activity", saveFilePath+""); myRecorder.setOutputFile(saveFilePath .getAbsolutePath()); saveFilePath.createNewFile(); myRecorder.prepare(); // 开始录音 myRecorder.start(); start.setText("正在录音中。。"); start.setEnabled(false); aler.dismiss(); // 重新读取 文件 File files = new File(path); listFile = files.list(); // 刷新ListView showRecord.notifyDataSetChanged(); } catch (Exception e) { e.printStackTrace(); } } }); aler = alerBuidler.create(); aler.setCanceledOnTouchOutside(false); aler.show(); break; case R.id.stop: if (saveFilePath.exists() && saveFilePath != null) { myRecorder.stop(); myRecorder.release(); // 判断是否保存 如果不保存则删除 new AlertDialog.Builder(this) .setTitle("是否保存该录音") .setPositiveButton("确定", null) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { saveFilePath.delete(); // 重新读取 文件 File files = new File(path); listFile = files.list(); // 刷新ListView showRecord.notifyDataSetChanged(); } }).show(); } start.setText("录音"); start.setEnabled(true); default: break; } } @Override protected void onDestroy() { // 释放资源 if (myPlayer.isPlaying()) { myPlayer.stop(); myPlayer.release(); } myPlayer.release(); myRecorder.release(); super.onDestroy(); } }
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