public void onActivityResult(final int requestCode, final int resultCode, final Intent intent) {
        if (requestCode == mRequestCodeFilePicker) {
            if (resultCode == Activity.RESULT_OK) {
                if (intent != null) {
                    if (mFileUploadCallbackFirst != null) {
                        Uri dataUri = intent.getData();

                        if(dataUri == null) dataUri = mImageCaptureHelper.getCapturedImageUri(); // handle image from camera

                        mFileUploadCallbackFirst.onReceiveValue(dataUri);
                        mFileUploadCallbackFirst = null;
                    }
                    else if (mFileUploadCallbackSecond != null) {
                        Uri[] dataUris = null;

                        try {
                            if (intent.getDataString() != null) {
                                dataUris = new Uri[] { Uri.parse(intent.getDataString()) };
                            }
                            else {
                                if (Build.VERSION.SDK_INT >= 16) {
                                    if (intent.getClipData() != null) {
                                        final int numSelectedFiles = intent.getClipData().getItemCount();

                                        dataUris = new Uri[numSelectedFiles];

                                        for (int i = 0; i < numSelectedFiles; i++) {
                                            dataUris[i] = intent.getClipData().getItemAt(i).getUri();
                                        }
                                    }
                                }
                            }
                        }
                        catch (Exception ignored) { }

                        if(dataUris == null) dataUris = mImageCaptureHelper.getCapturedImageUris(); // handle image from camera

                        mFileUploadCallbackSecond.onReceiveValue(dataUris);
                        mFileUploadCallbackSecond = null;
                    }
                }
                else {
                    if(mImageCaptureHelper != null) {
                        if (mFileUploadCallbackFirst != null) {
                            Uri dataUri = mImageCaptureHelper.getCapturedImageUri();
                            mFileUploadCallbackFirst.onReceiveValue(dataUri);
                            mFileUploadCallbackFirst = null;
                        }
                        else if (mFileUploadCallbackSecond != null) {
                            Uri[] dataUris = mImageCaptureHelper.getCapturedImageUris();
                            mFileUploadCallbackSecond.onReceiveValue(dataUris);
                            mFileUploadCallbackSecond = null;
                        }
                    }
                }
            }
            else {
                if (mFileUploadCallbackFirst != null) {
                    mFileUploadCallbackFirst.onReceiveValue(null);
                    mFileUploadCallbackFirst = null;
                }
                else if (mFileUploadCallbackSecond != null) {
                    mFileUploadCallbackSecond.onReceiveValue(null);
                    mFileUploadCallbackSecond = null;
                }
            }
        }
    }