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Take photo without intent in Android program


Take photo without intent in Android/Capture image without using intent in android/ Camera using preview  in android/Camera preview example/Take photo using surface view in android 





package com.sample;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.FrameLayout;

public class CameraExampleActivity extends Activity  {
      private static final String TAG = "CameraDemo";
      Camera camera;
      Preview preview;
      Button buttonClick;

      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);

            preview = new Preview(this);
            ((FrameLayout) findViewById(R.id.preview)).addView(preview);

            buttonClick = (Button) findViewById(R.id.buttonClick);
            buttonClick.setOnClickListener(new OnClickListener() {
                  public void onClick(View v) {
                        preview.camera.takePicture(shutterCallback, rawCallback,
                                    jpegCallback);
                  }
            });

            Log.d(TAG, "onCreate'd");
      }

      ShutterCallback shutterCallback = new ShutterCallback() {
            public void onShutter() {
                  Log.d(TAG, "onShutter'd");
            }
      };

      /** Handles data for raw picture */
      PictureCallback rawCallback = new PictureCallback() {
            public void onPictureTaken(byte[] data, Camera camera) {
                  Log.d(TAG, "onPictureTaken - raw");
            }
      };

      /** Handles data for jpeg picture */
      PictureCallback jpegCallback = new PictureCallback() {
            public void onPictureTaken(byte[] data, Camera camera) {
                  FileOutputStream outStream = null;
                  try {
                       
                        outStream = new FileOutputStream(String.format(
                                    "/sdcard/%d.jpg", System.currentTimeMillis()));
                        outStream.write(data);
                        outStream.close();
                       
                  } catch (FileNotFoundException e) {
                        e.printStackTrace();
                  } catch (IOException e) {
                        e.printStackTrace();
                  }
           
            }
      };

}

package com.sample;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.hardware.Camera;
import android.hardware.Camera.PreviewCallback;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class Preview  extends SurfaceView implements SurfaceHolder.Callback {
                private static final String TAG = "Preview";

                SurfaceHolder mHolder;
                public Camera camera;

                Preview(Context context) {
                                super(context);

                                // Install a SurfaceHolder.Callback so we get notified when the
                                // underlying surface is created and destroyed.
                                mHolder = getHolder();
                                mHolder.addCallback(this);
                                mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
                }

                public void surfaceCreated(SurfaceHolder holder) {
                                // The Surface has been created, acquire the camera and tell it where
                                // to draw.
                                camera = Camera.open();
                                try {
                                                camera.setPreviewDisplay(holder);

                                                camera.setPreviewCallback(new PreviewCallback() {

                                                                public void onPreviewFrame(byte[] data, Camera arg1) {
//                                                           
                                                                                Preview.this.invalidate();
                                                                }
                                                });
                                } catch (IOException e) {
                                                e.printStackTrace();
                                }
                }

                public void surfaceDestroyed(SurfaceHolder holder) {
                                // Surface will be destroyed when we return, so stop the preview.
                                // Because the CameraDevice object is not a shared resource, it's very
                                // important to release it when the activity is paused.
                                camera.stopPreview();
                                camera = null;
                }

                public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
                                // Now that the size is known, set up the camera parameters and begin
                                // the preview.
                                Camera.Parameters parameters = camera.getParameters();
                                parameters.setPreviewSize(w, h);
                                camera.setParameters(parameters);
                                camera.startPreview();
                }

}


<uses-permission android:name="android.permission.CAMERA"/>

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