Android onActivityResult 从未从 Fragment 中的 DialogFragment 调用过

Question

我要显示Dialog在打开 Camera 之间进行选择/Gallery在Fragment .

经过 Button按下，我显示自定义 DialogFragment (这个 DialogFragment 是一个 inner class 在 Fragment 里面)。

public static class AddPictureDialogFragment extends DialogFragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_add_picture_dialog, container, false);
        getDialog().setTitle("New Picture");

        Button openCameraButton = (Button) rootView.findViewById(R.id.open_camera_button);
        openCameraButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d("","Open Camera Option Selected");
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent, REQUEST_CAMERA);
                getDialog().dismiss();

            }
        });

        Button openGalleryButton = (Button) rootView.findViewById(R.id.open_gallery_button);
        openGalleryButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d("","Open Gallery Option Selected");
                Intent intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                intent.setType("image/*");
                startActivityForResult(Intent.createChooser(intent, "Select File"), SELECT_FILE);
                getDialog().dismiss();
            }
        });

        return rootView;
    }

}

选择一个选项后，Camera/Gallery已初始化，但在制作/选择图片后，方法 onActivityResult永远不会被调用。

这是我创建 DialogFragment 的代码:

FragmentManager fm = getActivity().getSupportFragmentManager();
    AddPictureDialogFragment addPictureDialogFragment = new AddPictureDialogFragment();
    addPictureDialogFragment.show(fm, getTag());

奇怪的是，如果我创建 DialogFragment直接在 Fragment不使用 DialogFragment它有效...

我在创建 DialogFragment 时也试过这个:

addPictureDialogFragment.setTargetFragment(this, 1);

还有这个，在初始化 camera 时Intent :

Button openCameraButton = (Button) rootView.findViewById(R.id.open_camera_button);
    openCameraButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.d("","Open Camera Option Selected");
            getDialog().dismiss();

            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            getTargetFragment().onActivityResult(getTargetRequestCode(), 1, intent); 
            startActivityForResult(intent, REQUEST_CAMERA);         
          }
    });

Answer 1

试试这个:

private void showAddImageDialog() {
    FragmentManager fm = getActivity().getSupportFragmentManager();
    AddPictureDialogFragment addPictureDialogFragment = new AddPictureDialogFragment();
    addPictureDialogFragment.setTargetFragment(this, REQUEST_CAMERA);
    addPictureDialogFragment.show(fm, getTag());
}



public static class AddPictureDialogFragment extends DialogFragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_add_picture_dialog, container, false);
        getDialog().setTitle("New Picture");


        Button openCameraButton = (Button) rootView.findViewById(R.id.open_camera_button);
        openCameraButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d("","Open Camera Option Selected");
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                getTargetFragment().startActivityForResult(intent, getTargetRequestCode());
                getDialog().dismiss();
            }
        });

        Button openGalleryButton = (Button) rootView.findViewById(R.id.open_gallery_button);
        openGalleryButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.d("","Open Gallery Option Selected");
                Intent intent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                intent.setType("image/*");
                getTargetFragment().startActivityForResult(Intent.createChooser(intent, "Select File"), SELECT_FILE);
                getDialog().dismiss();
            }
        });

        return rootView;
    }

}