package eoe.demo.Media;import java.io.File;
import java.io.IOException;import android.app.Activity;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;public class VideoActivity extends Activity {private File myRecAudioFile;
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private Button buttonStart;
private Button buttonStop;
private File dir;
private MediaRecorder recorder;@Override
public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.video);mSurfaceView = (SurfaceView) findViewById(R.id.videoView);mSurfaceHolder = mSurfaceView.getHolder();mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);buttonStart=(Button)findViewById(R.id.start);buttonStop=(Button)findViewById(R.id.stop);File defaultDir = Environment.getExternalStorageDirectory();String path = defaultDir.getAbsolutePath()+File.separator+"V"+File.separator;
//创建文件夹存放视频dir = new File(path);if(!dir.exists()){dir.mkdir();}recorder = new MediaRecorder();buttonStart.setOnClickListener(new OnClickListener() {
@Overridepublic void onClick(View v) {recorder();}
});buttonStop.setOnClickListener(new OnClickListener() {
@Overridepublic void onClick(View v) {recorder.stop();recorder.reset();recorder.release();recorder=null;}});
}public void recorder() {
try {myRecAudioFile = File.createTempFile("video", ".3gp",dir);//创建临时文件recorder.setPreviewDisplay(mSurfaceHolder.getSurface());//预览recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//视频源recorder.setAudioSource(MediaRecorder.AudioSource.MIC); //录音源为麦克风recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//输出格式为3gprecorder.setVideoSize(800, 480);//视频尺寸recorder.setVideoFrameRate(15);//视频帧频率recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);//视频编码recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音频编码recorder.setMaxDuration(10000);//最大期限recorder.setOutputFile(myRecAudioFile.getAbsolutePath());//保存路径recorder.prepare();recorder.start();
} catch (IOException e) {e.printStackTrace();}}
} 

    <?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"><SurfaceView android:id="@+id/videoView"android:visibility="visible"android:layout_width="320px"android:layout_height="240px"></SurfaceView><RelativeLayoutandroid:layout_width="fill_parent"android:layout_height="wrap_content"><Buttonandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="录制"android:id="@+id/start"/><Buttonandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_toRightOf="@id/start"android:text="停止"android:id="@+id/stop"/></RelativeLayout></LinearLayout> 

 　 <!-- 授予该程序录制声音的权限 --><uses-permission android:name="android.permission.RECORD_AUDIO"/><!-- 授予该程序使用摄像头的权限 -->    <uses-permission android:name="android.permission.CAMERA"/><uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/><!-- 授予使用外部存储器的权限 --><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>