android - take a photo button [ capture image from camera ]

Onclick

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 

MainActivity.this.startActivityForResult(intent, CAMERA_REQUEST);

OnActivityResult

Bitmap photo = (Bitmap)data.getExtras().get("data");

ImageView imageView = (ImageView)findViewById(R.id.imageView);

imageView.setImageBitmap(photo);