android 录音

importjava.io.File;

importjava.io.IOException;

importjava.util.Calendar;

importjava.util.Locale;

importandroid.app.Activity;

importandroid.media.MediaRecorder;

importandroid.os.Bundle;

importandroid.text.format.DateFormat;

importandroid.view.View;

importandroid.widget.Button;

importandroid.widget.Toast;

publicclassMainActivityextendsActivity{

privateButtonrecordButton;

privateButtonstopButton;

privateMediaRecordermr;

@Override

publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

recordButton=(Button)this.findViewById(R.id.Button01);

stopButton=(Button)this.findViewById(R.id.Button02);

//录音按钮点击事件

recordButton.setOnClickListener(newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

Filefile=newFile("/sdcard/"+"YY"+newDateFormat().format("yyyyMMdd_HHmmss",Calendar.getInstance(Locale.CHINA))+".amr");

Toast.makeText(getApplicationContext(),"正在录音，录音文件在"+file.getAbsolutePath(),Toast.LENGTH_LONG)

.show();

//创建录音对象

mr=newMediaRecorder();

//从麦克风源进行录音

mr.setAudioSource(MediaRecorder.AudioSource.DEFAULT);

//设置输出格式

mr.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);

//设置编码格式

mr.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);

//设置输出文件

mr.setOutputFile(file.getAbsolutePath());

try{

//创建文件

file.createNewFile();

//准备录制

mr.prepare();

}catch(IllegalStateExceptione){

e.printStackTrace();

}catch(IOExceptione){

e.printStackTrace();

}

//开始录制

mr.start();

recordButton.setText("录音中……");

}

});

//停止按钮点击事件

stopButton.setOnClickListener(newView.OnClickListener(){

@Override

publicvoidonClick(Viewv){

if(mr!=null){

mr.stop();

mr.release();

mr=null;

recordButton.setText("录音");

Toast.makeText(getApplicationContext(),"录音完毕",Toast.LENGTH_LONG).show();

}

}

});

}

}

<uses-permissionandroid:name="android.permission.RECORD_AUDIO"></uses-permission>

<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>