Android 记录的(MediaRecorder)而播放(MediaPlayer)

经MediaRecorder和MediaPlayer实现声音记录和回放,代码比较简单,直接附着到代码。

xml文档面对只有四个button不贴。

UI

Android 记录的(MediaRecorder)而播放(MediaPlayer)

watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQveWFuZ3lzbmcwNw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt="" align="middle" width="400" height="800">

代码:

VoiceActivity.class

package com.zy.ione;

import com.zy.media.UPlayer;
import com.zy.media.URecorder; import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast; public class VoiceActivity extends Activity { private String path = null;
private URecorder recorder;
private UPlayer player;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.activity_voice); path = Environment.getExternalStorageDirectory().getAbsolutePath();
path += "/ione.pcm"; recorder = new URecorder(path);
player = new UPlayer(path); //開始录音
findViewById(R.id.ione_record_start_btn).setOnClickListener(new OnClickListener() { @Override
public void onClick(View arg0) { Toast.makeText(VoiceActivity.this, "start record", Toast.LENGTH_SHORT).show(); recorder.start();
}
}); //停止录音
findViewById(R.id.ione_record_stop_btn).setOnClickListener(new OnClickListener() { @Override
public void onClick(View arg0) {
Toast.makeText(VoiceActivity.this, "stop record", Toast.LENGTH_SHORT).show();
recorder.stop();
}
}); //開始播放
findViewById(R.id.ione_play_start_btn).setOnClickListener(new OnClickListener() { @Override
public void onClick(View arg0) { Toast.makeText(VoiceActivity.this, "start play", Toast.LENGTH_SHORT).show();
player.start();
}
}); //停止播放
findViewById(R.id.ione_play_stop_btn).setOnClickListener(new OnClickListener() { @Override
public void onClick(View arg0) {
Toast.makeText(VoiceActivity.this, "stop play", Toast.LENGTH_SHORT).show();
player.stop();
}
});
} }

操作接口

package com.zy.media;

public interface IVoiceManager {

	public boolean start();
public boolean stop();
}

录音

package com.zy.media;

import java.io.IOException;

import android.media.MediaRecorder;
import android.util.Log; public class URecorder implements IVoiceManager{ private final String TAG = URecorder.class.getName();
private String path;
private MediaRecorder mRecorder;
public URecorder(String path){
this.path = path;
mRecorder = new MediaRecorder();
} /*
* 開始录音
* @return boolean
*/
@Override
public boolean start() {
//设置音源为Micphone
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
//设置封装格式
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setOutputFile(path);
//设置编码格式
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); try {
mRecorder.prepare();
} catch (IOException e) {
Log.e(TAG, "prepare() failed");
}
//录音
mRecorder.start();
return false;
} /*
* 停止录音
* @return boolean
*/
@Override
public boolean stop() {
mRecorder.stop();
mRecorder.release();
mRecorder = null;
return false;
} }

播放

package com.zy.media;

import android.media.MediaPlayer;
import android.util.Log; public class UPlayer implements IVoiceManager { private final String TAG = UPlayer.class.getName();
private String path; private MediaPlayer mPlayer;
public UPlayer(String path){
this.path = path;
mPlayer = new MediaPlayer();
} @Override
public boolean start() {
try {
//设置要播放的文件
mPlayer.setDataSource(path);
mPlayer.prepare();
//播放
mPlayer.start();
}catch(Exception e){
Log.e(TAG, "prepare() failed");
} return false;
} @Override
public boolean stop() {
mPlayer.stop();
mPlayer.release();
mPlayer = null;
return false;
} }

版权声明:本文博主原创文章。博客,未经同意,不得转载。

上一篇:Quartz.NET开源作业调度框架系列(四):Plugin Job-转


下一篇:转载 Android快捷键 转载