how to capture image automatically in Android [duplicate]

Question

Possible Duplicate:
Capture image with front camera without opening the camera application in android

my problem is I can do capturing only by using Intent to launch the camera and click the button to capture image. Is it possible to do it automatically by not clicking a button or what codes can I add to do this? thanks in advance.

Answer 1

public class CameraView extends Activity implements SurfaceHolder.Callback, OnClickListener{
        private static final String TAG = "CameraTest";
        Camera mCamera;
        boolean mPreviewRunning = false;

        @SuppressWarnings("deprecation")
        public void onCreate(Bundle icicle){
            super.onCreate(icicle);
            Log.e(TAG, "onCreate");

            getWindow().setFormat(PixelFormat.TRANSLUCENT);
            requestWindowFeature(Window.FEATURE_NO_TITLE);
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
            setContentView(R.layout.cameraview);
            ImageView img = (ImageView) findViewById(R.id.blankImage);

            if(CaptureCameraImage.isBlack)
                img.setBackgroundResource(android.R.color.black);
            else
                img.setBackgroundResource(android.R.color.white);

            mSurfaceView = (SurfaceView) findViewById(R.id.surface_camera);
            mSurfaceView.setOnClickListener(this);
            mSurfaceHolder = mSurfaceView.getHolder();
            mSurfaceHolder.addCallback(this);
            mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

        }

        @Override
        protected void onRestoreInstanceState(Bundle savedInstanceState){
            super.onRestoreInstanceState(savedInstanceState);
        }


        Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {

            public void onPictureTaken(byte[] data, Camera camera) {
                // TODO Auto-generated method stub
                if (data != null){
                    //Intent mIntent = new Intent();
                    //mIntent.putExtra("image",imageData);

                    mCamera.stopPreview();
                    mPreviewRunning = false;
                    mCamera.release();

                     try{
                         BitmapFactory.Options opts = new BitmapFactory.Options();
                         Bitmap bitmap= BitmapFactory.decodeByteArray(data, 0, data.length,opts);
                         bitmap = Bitmap.createScaledBitmap(bitmap, 300, 300, false);
                         int width = bitmap.getWidth();
                         int height = bitmap.getHeight();
                         int newWidth = 300;
                         int newHeight = 300;

                         // calculate the scale - in this case = 0.4f
                         float scaleWidth = ((float) newWidth) / width;
                         float scaleHeight = ((float) newHeight) / height;

                         // createa matrix for the manipulation
                         Matrix matrix = new Matrix();
                         // resize the bit map
                         matrix.postScale(scaleWidth, scaleHeight);
                         // rotate the Bitmap
                         matrix.postRotate(-90);
                         Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,
                                 width, height, matrix, true);
                         CaptureCameraImage.image.setImageBitmap(resizedBitmap);

                     }catch(Exception e){
                         e.printStackTrace();
                     }
                    //StoreByteImage(mContext, imageData, 50,"ImageName");
                    //setResult(FOTO_MODE, mIntent);
                    setResult(585);
                    finish();
                }       
            }
        };

        protected void onResume(){
            Log.e(TAG, "onResume");
            super.onResume();
        }

        protected void onSaveInstanceState(Bundle outState){
            super.onSaveInstanceState(outState);
        }

        protected void onStop(){
            Log.e(TAG, "onStop");
            super.onStop();
        }

        @TargetApi(9)
        public void surfaceCreated(SurfaceHolder holder){
            Log.e(TAG, "surfaceCreated");
            mCamera = Camera.open(CaptureCameraImage.cameraID);
        }

        public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
            Log.e(TAG, "surfaceChanged");

            // XXX stopPreview() will crash if preview is not running
            if (mPreviewRunning){
                mCamera.stopPreview();
            }

            Camera.Parameters p = mCamera.getParameters();
            p.setPreviewSize(300, 300);

            if(CaptureCameraImage.cameraID == 0){
                String stringFlashMode = p.getFlashMode();
                if (stringFlashMode.equals("torch"))
                        p.setFlashMode("on"); // Light is set off, flash is set to normal 'on' mode
                else
                        p.setFlashMode("torch");
            }

            mCamera.setParameters(p);
            try{
                mCamera.setPreviewDisplay(holder);
            }catch (Exception e){
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            mCamera.startPreview();
            mPreviewRunning = true;
            mCamera.takePicture(null, mPictureCallback, mPictureCallback);
        }

        public void surfaceDestroyed(SurfaceHolder holder) {
            Log.e(TAG, "surfaceDestroyed");
            //mCamera.stopPreview();
            //mPreviewRunning = false;
            //mCamera.release();
        }

        private SurfaceView mSurfaceView;
        private SurfaceHolder mSurfaceHolder;

        public void onClick(View v) {
            // TODO Auto-generated method stub
            mCamera.takePicture(null, mPictureCallback, mPictureCallback);
        }

    }

You need to call this activity Also check below line of code mCamera.takePicture(null, mPictureCallback, mPictureCallback); It's called twice 1) If you want user interaction to take picture you need to commit first occurrence 2) If you want no user interaction (It will take photo as soon as it start) You can find whole project at

https://github.com/sandipmjadhav/CaptureImage

Thank You