Convert image to base64 android

This is the working code, to take a photo of the camera and gallery and convert it to base64 to be able to send the web services through its string and bitmap to show it in the app. I hope you help them.

Running.

Variables:

private  int RESULT_LOAD_IMG = 0;
private int REQUEST_CAMERA = 0, SELECT_FILE = 1;
String imgDecodableString;
private String userChoosenTask;

Code to choose camera or gallery:

 public void addImage(View view){
    boolean result = CategoryUtility.checkPermission(CreateBits.this);

    //Ajustamos los elementos al DialogBox usando un AlertDialog...
    final CharSequence[] items = { "Tomar Foto", "Elegir Imagen", "Cancelar" };
    AlertDialog.Builder builder = new AlertDialog.Builder(CreateBits.this);
    builder.setTitle("Agregar Foto!");
    builder.setItems(items, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int item) {
            //Se revisa los permisos de la camara para android mas actuales si el andrpoid es menor a Marshmallow
            // checkPermission() devuelve true...
            boolean result = CategoryUtility.checkPermission(CreateBits.this);
            //Comprobamos la solicitud de la camara...
            if(items[item].equals("Tomar Foto")){
                //Almacené toma la foto en la variable de cadena userChoosenTask..
                userChoosenTask = "Tomar Foto";
                if(result)
                    cameraIntent();
                //Elegir desde la galeria
            }else if (items[item].equals("Elegir Imagen")){
                userChoosenTask = "Elegir Imagen";
                if(result)
                    galleryIntent();
            }else if(items[item].equals("Cancelar")){
                dialog.dismiss();
            }
        }
    });
    builder.show();
}
//Metodo de la camara
private void cameraIntent(){
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    //Nos da la captura de la camara
    startActivityForResult(intent, REQUEST_CAMERA);

}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults){
    switch (requestCode){
        case CategoryUtility.MY_PERMISSIONS_REQUEST_READ_EXTERNAL_STORAGE:
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
                if (userChoosenTask.equals("Tomar Foto"))
                    cameraIntent();
                else if (userChoosenTask.equals("Elegir Imagen"))
                    galleryIntent();
            }else {
                //denegar
            }
            break;
    }
}
private void galleryIntent(){
    Intent galleryIntent = new Intent(Intent.ACTION_PICK,
            MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    // Start the Intent
    startActivityForResult(galleryIntent, RESULT_LOAD_IMG);
}

Processing code:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    try {
        if (requestCode == RESULT_LOAD_IMG && resultCode == RESULT_OK) {
            final Uri imageUri = data.getData();
            final InputStream imageStream = getContentResolver().openInputStream(imageUri);
            final Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
            imgDecodableString = encodeImage(selectedImage);
            ImageView imgView = (ImageView) findViewById(R.id.imgCreateBit);
            // Set the Image in ImageView after decoding the String
            imgView.setImageBitmap(BitmapFactory
                    .decodeFile(imgDecodableString));


            Uri selectedImages = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };

            // Get the cursor
            Cursor cursor = getContentResolver().query(selectedImages,
                    filePathColumn, null, null, null);
            // Move to first row
            cursor.moveToFirst();
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            imgDecodableString = cursor.getString(columnIndex);

            imgDecodableString = encodeImages(imgDecodableString);
            cursor.close();
            Log.i("Main",imgDecodableString);

            imgView = (ImageView) findViewById(R.id.imgCreateBit);
            // Set the Image in ImageView after decoding the String

            Bitmap myBitmapAgain = decodeBase64(imgDecodableString);
            imgView.setImageBitmap(myBitmapAgain);


        } else {
            Toast.makeText(this, "No haz escogido una imagen",
                    Toast.LENGTH_LONG).show();
        }
    } catch (Exception e) {
        Toast.makeText(this, "Algo salio mal", Toast.LENGTH_LONG)
                .show();
    }
}
private String encodeImage(Bitmap bm) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bm.compress(Bitmap.CompressFormat.JPEG,100,baos);
    byte[] b = baos.toByteArray();
    imgDecodableString = Base64.encodeToString(b, Base64.DEFAULT);

    return imgDecodableString;
}

public static Bitmap decodeBase64(String input)
{
    byte[] decodedBytes = Base64.decode(input.getBytes(), Base64.DEFAULT);
    return BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.length);
}
private String encodeImages(String path) {
    File imagefile = new File(path);
    FileInputStream fis = null;
    try{
        fis = new FileInputStream(imagefile);
    }catch(FileNotFoundException e){
        e.printStackTrace();
    }
    Bitmap bm = BitmapFactory.decodeStream(fis);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bm.compress(Bitmap.CompressFormat.JPEG,100,baos);
    byte[] b = baos.toByteArray();
    imgDecodableString = Base64.encodeToString(b, Base64.DEFAULT);
    //Base64.de
    return imgDecodableString;

}