android视屏录制源代码,android 视频录制并保存至本地

package com.media.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() {

@Override

public void onClick(View v) {

recorder();

}

});

buttonStop.setOnClickListener(new OnClickListener() {

@Override

public 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3gp

recorder.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();

}

}

}

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