Android - onActivityResult from DialogFragment

Question

I have a webview app and I want to upload image files from camera of from gallery to my web page.

I successfully implemented the camera upload but now I'm trying to implement a DialogFragment to let user choose from where upload the file.

The code is in a fragment and I can't pass camera results to onActivityResult function, this is the DialogFragment class`public static class EditNameDialog extends DialogFragment {

    private Button buttonCamera;

    public File createImageFile() throws IOException {
        // Create an image file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "JPEG_" + timeStamp + "_";
        File storageDir = getActivity().getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File image = File.createTempFile(
                imageFileName,  /* prefix */
                ".jpg",         /* suffix */
                storageDir      /* directory */
        );

        // Save a file: path for use with ACTION_VIEW intents
        mCurrentPhotoPath = "file:" + image.getAbsolutePath();
        return image;
    }

    public void dispatchTakePictureIntent() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        // Ensure that there's a camera activity to handle the intent
        if (takePictureIntent.resolveActivity(getActivity().getPackageManager()) != null) {
            // Create the File where the photo should go
            File photoFile = null;
            try {
                photoFile = createImageFile();
            } catch (IOException ex) {
                // Error occurred while creating the File
            }
            // Continue only if the File was successfully created
            if (photoFile != null) {
                Uri photoURI = FileProvider.getUriForFile(getActivity(),
                        "com.mysite.fileprovider",
                        photoFile);
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                finalphotoURI = photoURI;
                getActivity().startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
            }
        }
    }

    public EditNameDialog() {
        // Empty constructor required for DialogFragment
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_photo, container);
        return view;
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        // Get field from view
        buttonCamera = (Button) view.findViewById(R.id.buttonCamera);
        buttonCamera.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                dispatchTakePictureIntent();
            }

        });
    }
}`

And this is my onActivityResult class:

@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
    super.onActivityResult(requestCode, resultCode, intent);
    if(requestCode==REQUEST_FILE_PICKER)
    {
        if(mFilePathCallback5!=null)
        {
            if (finalphotoURI != null) {
                mFilePathCallback5.onReceiveValue(new Uri[]{ finalphotoURI });
            }
        }
        mFilePathCallback5 = null;
    }
}

How can I pass finalphotoURI to onActivityResult function?

Answer 1

将您的dialogFragment更改为一个appCompatActivity，并将其主题从清单更改为对话框，然后调用StartActivityForResult（），然后使用该函数获取结果