我在幾個活動中使用下一個相機代碼，我想做一個類來封裝在Android中使用相機的方法。我試圖得到的是活動類是這樣的：Public class Myfragment extends Fragment{@Nullable@Overridepublic View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {    View v = inflater.inflate(R.layout.profile_fragment, container, false);        mButtonProfilePhoto = v.findViewById(R.id.buttonProfilePhoto);        mButtonProfilePhoto.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {        //Here I call the camera intent.            Camera.dispatchTakePictureIntent(getActivity(), mPhotoFile);            }            });    return v;    }        @Override        public void onActivityResult(int requestCode, int resultCode, Intent data) {              //handle the camera result}相機類如下所示：public class Camera{public static void dispatchTakePictureIntent(Activity activity, File file) {    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);    // Ensure that there's a camera activity to handle the intent    if (takePictureIntent.resolveActivity(activity.getPackageManager()) != null) {        // Create the File where the photo should go        file = null;        try {            file = Camera.createImageFile(activity);        } catch (IOException ex) {            // Error occurred while creating the File        }        // Continue only if the File was successfully created        if (file  != null) {            Uri photoURI = FileProvider.getUriForFile(activity,                    "com.itcom202.weroom.fileprovider",                    file );            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);            startActivityForResult( takePictureIntent, REQUEST_IMAGE_CAPTURE);        }    }}}我現(xiàn)在遇到的問題是，我從來沒有從片段中接到回電。onActivityResult