How to specify whether intent is from camera or gallery in another Activity

Question

I'm pretty new with android and I'm having problems specifying whether Intent is coming from camera or gallery in second activity. Here's my code:

MainActivity:

public class MainActivity extends ActionBarActivity implements OnClickListener {

private static final int CAMERA_REQUEST = 1888;
private static final int PICK_FROM_CAMERA = 1;
private static final int PICK_FROM_GALLERY = 2;

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);

    Button cameraButton = (Button) this.findViewById(R.id.cameraButton);
    Button galleryButton = (Button) this.findViewById(R.id.galleryButton);

    //Here we choose to take a new picture
    cameraButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(cameraIntent, CAMERA_REQUEST);

            cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT,MediaStore.Images.Media.EXTERNAL_CONTENT_URI.toString()); 

        }
    });

    // Here we choose a photo from the gallery
    galleryButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent galleryIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            startActivityForResult(galleryIntent, PICK_FROM_GALLERY);
        }
    }); 


}       

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    super.onActivityResult(requestCode, resultCode, data); 
    switch(requestCode)
    {
        case PICK_FROM_CAMERA:
            if (resultCode == Activity.RESULT_OK) 
            {
                Bundle extras = data.getExtras();
                Bitmap imageBitmap = (Bitmap) extras.get("data");

                Intent captureIntent = new Intent(MainActivity.this, ImageViewerActivity.class);
                captureIntent.putExtra("data", imageBitmap);
                startActivity(captureIntent);

            }
            break;

        case PICK_FROM_GALLERY:
            if (resultCode == Activity.RESULT_OK)
            {
                Uri selectedImage = data.getData();
                String[] filePathColumn = { MediaStore.Images.Media.DATA };

                Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
                cursor.moveToFirst();

                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                String picturePath = cursor.getString(columnIndex);
                cursor.close();

                Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
                byte[] byteArray = stream.toByteArray();

                Intent intent = new Intent(this, ImageViewerActivity.class);
                intent.putExtra("picture", byteArray);
                startActivity(intent);
            }
            break;
    }
 }

    public String getPath(Uri uri) {

        // just some safety built in 
        if( uri == null ) {
            // TODO perform some logging or show user feedback
            return null;
        }
        // try to retrieve the image from the media store first
        // this will only work for images selected from gallery
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        if( cursor != null ){
            int column_index = cursor
            .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        }
        // this is our fallback here
        return uri.getPath();
    }

ImageViewerActivity:

public class ImageViewerActivity extends Activity {

public static ImageView imageView;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.photo_view);

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

}

private void getData() {
    // TODO Auto-generated method stub

        if(//image is from camera)
        {
            Intent intent = getIntent();
            Bitmap bitmap = (Bitmap) intent.getParcelableExtra("data");
            imageView.setImageBitmap(bitmap);
        }


        if(//image is from gallery)
        {
            Bundle extras = getIntent().getExtras();
            byte[] byteArray = extras.getByteArray("picture");

            Bitmap bmp = BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);
            imageView.setImageBitmap(bmp);      
        }
}

Any help is needed! Thanks a lot!

Answer 1

In your extras, you can pass another field with "INTENT_FROM" and put a String with a identifier = CAMERA, GALLERY or whatever.

To attach it, before sending your intent, create a bundle and add it to the intent that will be sent, like this:

Intent mIntent = new Intent(this, Example.class);
Bundle mBundle = new Bundle();
mBundle.putString(key, value);
mIntent.putExtras(mBundle);

You can find tips to manage bundles here.

Passing a Bundle on startActivity()?

I hope this would help you!