android 视频录制与播放 实例源码下载

【核心代码】

package com.example.mediaviewdemo;

import java.io.File;
import java.io.IOException;
import java.util.Timer;
import java.util.TimerTask;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.view.Menu;

import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class MainActivity extends Activity implements OnClickListener{
	MediaRecorder recorder;
	MediaPlayer player;
	SurfaceHolder holder;
    SurfaceView sview;
    Button btn1,btn2,btn3,btn4;
    File filder,file;
    boolean is;
    SeekBar seek;
    int position;
	@SuppressWarnings("deprecation")
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		SetUpView();
		
		//holder.addCallback((Callback) MainActivity.this);
		btn2.setEnabled(false);
		holder.setKeepScreenOn(true);
		holder.setFixedSize(600, 400);
		holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		//holder.addCallback(new MYSurFaceHolderCall());
	  
		seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
			
			@Override
			public void onStopTrackingTouch(SeekBar arg0) {
				// TODO Auto-generated method stub
			position=seek.getProgress();
				player.seekTo(position);
				//player.pause();
				
				player.start();
				is=true;
				btn4.setText("暂停");
			}
			
			@Override
			public void onStartTrackingTouch(SeekBar seek) {
				// TODO Auto-generated method stub
			
			
				
			
			}
			
			@Override
			public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) {
				// TODO Auto-generated method stub
				
			}
		});
	}

	private void SetUpView() {
		// TODO Auto-generated method stub
		
		player=new MediaPlayer();
		sview=(SurfaceView) findViewById(R.id.surfaceView1);
		holder=sview.getHolder();
		btn1=(Button) findViewById(R.id.button1);
		btn2=(Button) findViewById(R.id.button2);
		btn3=(Button) findViewById(R.id.button3);
		btn4=(Button) findViewById(R.id.button4);
		btn1.setOnClickListener(this);
		btn2.setOnClickListener(this);
		btn3.setOnClickListener(this);
		btn4.setOnClickListener(this);
		seek=(SeekBar) findViewById(R.id.seekBar1);
		String state=Environment.getExternalStorageState();
		if(Environment.MEDIA_MOUNTED.endsWith(state)){
			String sdcardroot=Environment.getExternalStorageDirectory().getAbsolutePath();
			 filder=new File(sdcardroot,"/savemp4/shipin");
			if(!filder.exists()){
				filder.mkdirs();
			}
			file=new File(filder, "shipin.mp4");
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch (v.getId()) {
		case R.id.button1:
			try {
				recorder=new MediaRecorder();
				//sview.refreshDrawableState();
				player.reset();
				recorder.reset();
				recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
				recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
				recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
				recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
				recorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
				recorder.setVideoSize(600, 400);
				recorder.setVideoFrameRate(2);
				recorder.setOutputFile(file.getAbsolutePath());
				recorder.setPreviewDisplay(holder.getSurface());
				recorder.prepare();
				btn1.setEnabled(false);
				btn2.setEnabled(true);
				is=true;
				recorder.start();
			} catch (Exception e) {
				// TODO: handle exception
			}
	
			
			break;
		case R.id.button2:
			if(is){
				recorder.stop();
				recorder.release();
				recorder=null;
				btn1.setEnabled(true);
				btn2.setEnabled(false);
			}
			break;
		case R.id.button3:
			try {
				player.reset();
				player.setDataSource(file.getAbsolutePath());
				player.setAudioStreamType(AudioManager.STREAM_MUSIC);
				player.setDisplay(holder);
				
				player.prepare();
				seek.setMax(player.getDuration());
				Timer mt=new Timer();
				TimerTask tit=new TimerTask() {
					
					@Override
					public void run() {
						// TODO Auto-generated method stub
						
							seek.setProgress(player.getCurrentPosition());
						
					}
				};
				mt.schedule(tit, 0, 10);
				btn4.setText("暂停");
				player.start();
			
				is=true;
			} catch (IllegalArgumentException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (SecurityException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IllegalStateException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		
			break;
		case R.id.button4:
			if(is){
				player.pause();
			
				is=false;
				btn4.setText("开始");
			}else{
				//player.reset();
				player.start();
			
				is=true;
				btn4.setText("暂停");
			}
			
			break;	
		
		default:
			break;
		}
		
	}
	/**
	 * class MYSurFaceHolderCall implements SurfaceHolder.Callback2{

	@Override
	public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void surfaceCreated(SurfaceHolder arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void surfaceDestroyed(SurfaceHolder arg0) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void surfaceRedrawNeeded(SurfaceHolder arg0) {
		// TODO Auto-generated method stub
		
	}
	
}
	 */

}