android 錄音代碼

import android.app.Activity;

import android.media.MediaRecorder;

import android.os.Bundle;

import android.os.Environment;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class MainActivity extends Activity {

private Button start, end;  
private MediaRecorder mediaRecorder;  
private String fileName;  
@Override  
protected void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.main);  
    start= (Button) findViewById(R.id.start);  
    end = (Button) findViewById(R.id.end);  
    fileName= Environment.getExternalStorageDirectory().getAbsolutePath() + "/audioRecorder.3gp";  
    start.setOnClickListener(new OnClickListener() {  

        @Override  
        public void onClick(View v) {  
            //一共七步  
            mediaRecorder = new MediaRecorder();  
            mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//設置麥克風  
            mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//輸出音頻格式  
            mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//編碼格式  
            mediaRecorder.setOutputFile(fileName);//輸出路徑  
            try {  
                mediaRecorder.prepare();//準備  
            } catch (Exception e) {  
                e.printStackTrace();  
            }  
            mediaRecorder.start();//開始錄音  
        }  
    });  
    //結束錄音  
    end.setOnClickListener(new OnClickListener() {  

        @Override  
        public void onClick(View v) {  
            mediaRecorder.stop();  
            mediaRecorder.release();  
        }  
    });  
}  

}  </pre>