CameraTest.java :  » App » augmented-reality-android-diploma-thesis » cz » papezzde » Android Open Source

package cz.papezzde;

import java.io.IOException;
import java.util.List;

import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.Size;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.SurfaceHolder.Callback;

public class CameraTest extends Activity implements Callback {
    private Camera mCamera;
  private boolean mPreviewRunning;

  /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        
        SurfaceView cameraSurface = (SurfaceView) findViewById(R.id.surface_camera);
        SurfaceHolder surfaceHolder = cameraSurface.getHolder();
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        
        
    }

  @Override
  public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
    if (mPreviewRunning) {

      mCamera.stopPreview();

      }

      Camera.Parameters p = mCamera.getParameters();

        List<Size> l = p.getSupportedPreviewSizes();                       
      p.setPreviewSize(l.get(0).width, l.get(0).height);
      mCamera.setParameters(p);
      

      try {

      mCamera.setPreviewDisplay(holder);

      } catch (IOException e) {


      e.printStackTrace();

      }

      mCamera.startPreview();

      mPreviewRunning = true;
    
  }

  @Override
  public void surfaceCreated(SurfaceHolder arg0) {
    mCamera = Camera.open();
  }

  @Override
  public void surfaceDestroyed(SurfaceHolder arg0) {
  
    mCamera.stopPreview();

    mPreviewRunning = false;

    mCamera.release();
    
  }
}