android视频拍摄 实例源码下载

【实例截图】

【核心代码】

package com.xushouwei.videorecoder;

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.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.RelativeLayout;

public class MainActivity extends Activity {
	/** Called when the activity is first created. */
	private SurfaceView surfaceView;
	private RelativeLayout layout;
	private Button recorderbutton;
	private Button stopbutton;
	private MediaRecorder mediaRecorder;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		// 设置窗口无标题
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		// 设置窗口全屏
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

		setContentView(R.layout.main);
		// 找到SurfaceView显示控件
		surfaceView = (SurfaceView) this.findViewById(R.id.surfaceView);
		// 设置参数//直接输送到屏幕前段
		surfaceView.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		// 设置分辨率
		surfaceView.getHolder().setFixedSize(176, 144);
		// 要求不要锁屏
		surfaceView.getHolder().setKeepScreenOn(true);
		// 找到相对布局显示控件
		layout = (RelativeLayout) this.findViewById(R.id.layout);

		recorderbutton = (Button) this.findViewById(R.id.recorderbutton);
		stopbutton = (Button) this.findViewById(R.id.stopbutton);

	}

	public void record(View v) {
		switch (v.getId()) {
		case R.id.recorderbutton:
			try {
				File videoFile = new File(Environment.getExternalStorageDirectory(),
						System.currentTimeMillis()   ".3gp");
				// 媒体刻录类
				mediaRecorder = new MediaRecorder();
				// 设置媒体声音来源为麦克风
				mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
				// 设置媒体视频来源为摄像头
				mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
				// 设置输出格式
				mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
				// 设置视频大小
				mediaRecorder.setVideoSize(320, 240);
				// 设置每秒捕获画面的帧数
				mediaRecorder.setVideoFrameRate(5);
				// 设置视频声音编码格式
				mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
				// 设置视频编码
				mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
				// 设置文件输出位置
				mediaRecorder.setOutputFile(videoFile.getAbsolutePath());
				// 把摄像头捕获的预览画面输送到屏幕
				mediaRecorder.setPreviewDisplay(surfaceView.getHolder().getSurface());
				// 开始刻录
				// 进行缓存
				mediaRecorder.prepare();
				mediaRecorder.start();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			recorderbutton.setEnabled(false);
			stopbutton.setEnabled(true);
			break;
		case R.id.stopbutton:
			if(mediaRecorder!=null)
			{
				mediaRecorder.stop();
				mediaRecorder.release();
				mediaRecorder=null;
			}
			recorderbutton.setEnabled(true);
			stopbutton.setEnabled(false);
			break;
		}
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		// TODO Auto-generated method stub
		if (event.getAction() == MotionEvent.ACTION_DOWN) {
			// 设置可见
			layout.setVisibility(ViewGroup.VISIBLE);
		}
		return super.onTouchEvent(event);
	}
}