Android Preview Picture on Multiple ImageButtons

Question

I'm trying to create an app that has an activity with two ImageButtons. When clicking each of the buttons, the camera opens and a picture is taken. once the picture is saved, it is presented as a preview inside the image button. I can do it for one of them but when clicking on the second it overrides the first image.

Is there a way to pass the element that was clicked to the onActivityResult method in order to set which ImageButton should include the picture?

The code is as follows:

// Activity request codes
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;

// directory name to store captured images and videos
private static final String IMAGE_DIRECTORY_NAME = "Hello Camera";

private Uri fileUri; // file url to store image/video

private ImageButton imageButton;
private ImageButton imageButton2;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.ask_activity_layout);

    imageButton =(ImageButton) findViewById(R.id.imageButton);
    imageButton2 =(ImageButton) findViewById(R.id.imageButton2);


    // Checking camera availability
    if (!isDeviceSupportCamera()) {
        Toast.makeText(getApplicationContext(),
                "Sorry! Your device doesn't support camera",
                Toast.LENGTH_LONG).show();
        // will close the app if the device does't have camera
        finish();
    }
}

The method that starts the capture image:

public void captureImage(View view) {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

    fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE);

    intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

    // start the image capture Intent

    startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
}

The onActivityResult method:

 @Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // if the result is capturing Image
    if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            // successfully captured the image
            // display it in image view
           // data.getComponent();
            previewCapturedImage(null);
        } else if (resultCode == RESULT_CANCELED) {
            // user cancelled Image capture
            Toast.makeText(getApplicationContext(),
                    "User cancelled image capture", Toast.LENGTH_SHORT)
                    .show();
        } else {
            // failed to capture image
            Toast.makeText(getApplicationContext(),
                    "Sorry! Failed to capture image", Toast.LENGTH_SHORT)
                    .show();
        }
    } else if (requestCode == CAMERA_CAPTURE_VIDEO_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            // video successfully recorded
            // preview the recorded video
            previewCapturedImage(null);
        } else if (resultCode == RESULT_CANCELED) {
            // user cancelled recording
            Toast.makeText(getApplicationContext(),
                    "User cancelled video recording", Toast.LENGTH_SHORT)
                    .show();
        } else {
            // failed to record video
            Toast.makeText(getApplicationContext(),
                    "Sorry! Failed to record video", Toast.LENGTH_SHORT)
                    .show();
        }
    }
}

Finally the previewCapturedImage method:

  private void previewCapturedImage(View view) {
    try {
        // hide video preview
        //videoPreview.setVisibility(View.GONE);

       imageButton.setVisibility(View.VISIBLE);

        // bimatp factory
        BitmapFactory.Options options = new BitmapFactory.Options();

        // downsizing image as it throws OutOfMemory Exception for larger
        // images
        options.inSampleSize = 8;

        final Bitmap bitmap = BitmapFactory.decodeFile(fileUri.getPath(),
                options);

        **imageButton.setImageBitmap(bitmap);**
    } catch (NullPointerException e) {
        e.printStackTrace();
    }
}

I would like to pass the actual ImageButton clicked from the onActivityResult to the previewCaptureImage method to dynamically set the image either in ImageButton or ImageButton2.

Any help with this will be highly appreciated.

Thanks

Seb

PS: the code posted here was taken from the following example: http://www.androidhive.info/2013/09/android-working-with-camera-api/

Answer 1

Yes. That's the purpose of the requestCode parameter of the startActivityForResult function. You'll have to have a different code for each of the buttons that will 'receive' the image.

Something like:

private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE_SECONDARY = 101;
private static final int CAMERA_CAPTURE_VIDEO_REQUEST_CODE = 200;

And based on the requestCode choose the ImageView that will be assigned the captured bitmap.