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Take a snapshot

package app.test; import java.io.IOException; import java.io.OutputStream; import java.util.Iterator; import java.util.List; import android.app.Activity; import android.content.ContentValues; import android.content.res.Configuration; import android.hardware.Camera; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore.Images.Media; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.View.OnClickListener; import android.widget.Toast; public class Test extends Activity implements OnClickListener,     SurfaceHolder.Callback, Camera.PictureCallback {   SurfaceView cameraView;   SurfaceHolder surfaceHolder;   Camera camera;   @Override   public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.main);     cameraView = (SurfaceView) this.findViewById(R.id.CameraView);     surfaceHolder = cameraView.getHolder();     surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);     surfaceHolder.addCallback(this);     cameraView.setFocusable(true);     cameraView.setFocusableInTouchMode(true);     cameraView.setClickable(true);     cameraView.setOnClickListener(this);   }   public void onClick(View v) {     camera.takePicture(null, null, this);   }   public void onPictureTaken(byte[] data, Camera camera) {     Uri imageFileUri = getContentResolver().insert(         Media.EXTERNAL_CONTENT_URI, new ContentValues());     try {       OutputStream imageFileOS = getContentResolver().openOutputStream(           imageFileUri);       imageFileOS.write(data);       imageFileOS.flush();       imageFileOS.close();     } catch (Exception e) {       Toast t = Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT);       t.show();     }     camera.startPreview();   }   public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {     camera.startPreview();   }   public void surfaceCreated(SurfaceHolder holder) {     camera = Camera.open();     try {       camera.setPreviewDisplay(holder);       Camera.Parameters parameters = camera.getParameters();       if (this.getResources().getConfiguration().orientation != Configuration.ORIENTATION_LANDSCAPE) {         parameters.set("orientation", "portrait");         camera.setDisplayOrientation(90);       }       List<String> colorEffects = parameters.getSupportedColorEffects();       Iterator<String> cei = colorEffects.iterator();       while (cei.hasNext()) {         String currentEffect = cei.next();         if (currentEffect.equals(Camera.Parameters.EFFECT_SOLARIZE)) {           parameters.setColorEffect(Camera.Parameters.EFFECT_SOLARIZE);           break;         }       }       camera.setParameters(parameters);     } catch (IOException exception) {       camera.release();     }   }   public void surfaceDestroyed(SurfaceHolder holder) {     camera.stopPreview();     camera.release();   } } //layout/main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:orientation="vertical"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     > <SurfaceView android:id="@+id/CameraView"               android:layout_width="fill_parent"               android:layout_height="fill_parent"> </SurfaceView> </LinearLayout>