Android Open Source - video Main Activity

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License

The source code is released under:

Apache License

Java Source Code

package edu.cs4730.videocapture3;
//  www.ja v a2 s  . c o  m
import java.io.IOException;

import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;

public class MainActivity extends Activity implements OnClickListener, SurfaceHolder.Callback {
  MediaRecorder recorder;
  SurfaceHolder holder;
  boolean recording = false;
     int num = 0;
     
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

    recorder = new MediaRecorder();
    initRecorder();
    setContentView(R.layout.activity_main);

    SurfaceView cameraView = (SurfaceView) findViewById(R.id.cameraView);
    holder = cameraView.getHolder();
    holder.addCallback(this);
    holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

    cameraView.setClickable(true);
    cameraView.setOnClickListener(this);
  }


  private void initRecorder() {
    // recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
    recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);

    CamcorderProfile cpHigh = CamcorderProfile
        .get(CamcorderProfile.QUALITY_HIGH);
    recorder.setProfile(cpHigh);
    num++; //so it doesn't overwrite the previous file.
    recorder.setOutputFile(Environment.getExternalStorageDirectory().getPath()+"/videocapture_example"+num+".mp4");
    recorder.setMaxDuration(50000); // 50 seconds
    recorder.setMaxFileSize(5000000); // Approximately 5 megabytes
  }

  private void prepareRecorder() {
    recorder.setPreviewDisplay(holder.getSurface());

    try {
      recorder.prepare();
    } catch (IllegalStateException e) {
      e.printStackTrace();
      finish();
    } catch (IOException e) {
      e.printStackTrace();
      finish();
    }
  }

  public void onClick(View v) {
    if (recording) {
      recorder.stop();
      recording = false;

      // Let's initRecorder so we can record again
      initRecorder();
      prepareRecorder();
    } else {
      recording = true;
      recorder.start();
    }
  }

  public void surfaceCreated(SurfaceHolder holder) {
    prepareRecorder();
  }

  public void surfaceChanged(SurfaceHolder holder, int format, int width,
      int height) {
  }

  public void surfaceDestroyed(SurfaceHolder holder) {
    if (recording) {
      recorder.stop();
      recording = false;
    }
    recorder.release();
    finish();
  }



  @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 boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }
}

Java Source Code List

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