android - onActivityResult() is not working in fragment " OUTPUT: You haven't picked Image "

This is my code and when i run the code then
output will be "**you haven't picked
images"**

sdk
which i use currently in this
app

android {

compileSdkVersion 28
defaultConfig {
applicationId
"com.example.letsget.humanitysavior"
minSdkVersion 21

targetSdkVersion 28
versionCode 1

versionName
"1.0"
testInstrumentationRunner
"androidx.test.runner.AndroidJUnitRunner"
}
buildTypes
{
release {
minifyEnabled false
proguardFiles
getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

}
}

Here is
the manifests
permissions

            android:name="android.permission.INTERNET" />
            android:name="android.permission.READ_EXTERNAL_STORAGE"/>
            android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
            android:name="android.permission.RECORD_AUDIO"
            />

Here
is the fragment code

public class NewPostPublicFragment
extends Fragment {

public
            NewPostPublicFragment() {
 // Required empty public
            constructor
}

private int PICK_IMAGE_MULTIPLE =
            3;
String imageEncoded;
List
            imagesEncodedList;

private GridView gvGallery;
private
            NewPostImagesAdapter galleryAdapter;
CarouselView
            carouselView;

private ArrayList
            mArrayUri;

@Override
public View
            onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
            {
 // Inflate the layout for this fragment
 View view =
            inflater.inflate(R.layout.fragment_new_post_public, container,
            false);


 gvGallery =
            view.findViewById(R.id.gridview);
 ImageView selectimgicon =
            view.findViewById(R.id.selectimgicon);
 ImageView selectvideoicon =
            view.findViewById(R.id.selectvideoicon);
 ImageView selectcameraicon =
            view.findViewById(R.id.selectcameraicon);
 carouselView =
            view.findViewById(R.id.carouselview);
 final TextInputEditText postcategories
            = view.findViewById(R.id.postcategories);


            //carouselView.setPageCount(mThumbIds.length);

            //carouselView.setImageListener(imageListener);


 //for
            image selection
 selectimgicon.setOnClickListener(new View.OnClickListener()
            {
 @Override
 public void onClick(View v) {
 //LOGIC FOR
            PROFILE PICTURE
 selectImagesFromGallery();
 }

            });


 postcategories.setOnClickListener(new
            View.OnClickListener() {
 @Override
 public void onClick(View v)
            {

 final CharSequence[] items = { "Book", "Cloth", "Electronic",
            "Furniture", "Bag", "Social Post", "Other" };

 AlertDialog.Builder
            postCategoryBuilder = new
            AlertDialog.Builder(v.getContext(),AlertDialog.THEME_HOLO_LIGHT);

            postCategoryBuilder.setTitle("Select Post Category");

            postCategoryBuilder.setIcon(R.mipmap.categoryicon);

            postCategoryBuilder.setItems(items, new DialogInterface.OnClickListener()
            {

 @Override
 public void onClick(DialogInterface dialog,
            int which) {
 // the user clicked on colors[which]

            postcategories.setText(items[which]);
 }
 });

            postCategoryBuilder.show();
 }
 });



            return view;
}

ImageListener imageListener = new
            ImageListener() {
 @Override
 public void setImageForPosition(int
            position, ImageView imageView) {

            //imageView.setImageResource(mThumbIds[position]);

            imageView.setImageURI(mArrayUri.get(position));

            }
};


private void selectImagesFromGallery()
            {

 Intent intent = new Intent();

            intent.setType("image/*");
 intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE,
            true);
 intent.setAction(Intent.ACTION_GET_CONTENT);

            startActivityForResult(Intent.createChooser(intent, "Select Image"),
            PICK_IMAGE_MULTIPLE);

}


@Override
public
            void onActivityResult(int requestCode, int resultCode, Intent data) {

            super.onActivityResult(requestCode, resultCode, data);

 try
            {

 Log.v(TAG, "requestCode=" + requestCode + ", resultCode = "+
            resultCode + ", data = " + data);
 // When an Image is picked
 if
            (requestCode == PICK_IMAGE_MULTIPLE && resultCode == RESULT_OK && data
            != null) {

 // Get the Image from data


            String[] filePathColumn = { MediaStore.Images.Media.DATA };
 imagesEncodedList
            = new ArrayList();

            if(data.getData()!=null){

 Uri mImageUri =
            data.getData();

 // Get the cursor
 Cursor cursor =
            getActivity().getContentResolver().query(mImageUri,


            filePathColumn, null, null, null);
 // Move to first row

            cursor.moveToFirst();

 int columnIndex =
            cursor.getColumnIndex(filePathColumn[0]);
 imageEncoded =
            cursor.getString(columnIndex);
 cursor.close();


            ArrayList mArrayUri = new ArrayList();

            mArrayUri.add(mImageUri);

 galleryAdapter = new
            NewPostImagesAdapter(getActivity().getApplicationContext(),mArrayUri);

            gvGallery.setAdapter(galleryAdapter);

            gvGallery.setVerticalSpacing(gvGallery.getHorizontalSpacing());

            ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) gvGallery

            .getLayoutParams();
 mlp.setMargins(0, gvGallery.getHorizontalSpacing(), 0,
            0);

 carouselView.setPageCount(mArrayUri.size());

            carouselView.setImageListener(imageListener);


 } else
            {
 if (data.getClipData() != null) {
 ClipData mClipData =
            data.getClipData();
 ArrayList mArrayUri = new
            ArrayList();
 for (int i = 0; i < mClipData.getItemCount(); i++)
            {

 ClipData.Item item = mClipData.getItemAt(i);
 Uri uri
            = item.getUri();
 mArrayUri.add(uri);
 // Get the
            cursor

 Cursor cursor =
            getActivity().getContentResolver().query(uri, filePathColumn, null, null,
            null);
 // Move to first row

            cursor.moveToFirst();

 int columnIndex =
            cursor.getColumnIndex(filePathColumn[0]);
 imageEncoded =
            cursor.getString(columnIndex);

            imagesEncodedList.add(imageEncoded);
 cursor.close();


            galleryAdapter = new
            NewPostImagesAdapter(getActivity().getApplicationContext(),mArrayUri);


            gvGallery.setAdapter(galleryAdapter);

            gvGallery.setVerticalSpacing(gvGallery.getHorizontalSpacing());

            ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) gvGallery

            .getLayoutParams();
 mlp.setMargins(0, gvGallery.getHorizontalSpacing(), 0,
            0);

 }
 Log.v("LOG_TAG", "Selected Images" +
            mArrayUri.size());
 }
 }

 } else {

            Toast.makeText(getContext(), "You haven't picked Image",

            Toast.LENGTH_LONG).show();
 }
 } catch (Exception e) {

            Toast.makeText(getContext(), "Something went wrong", Toast.LENGTH_LONG)

            .show();

            }
}

}

when
i run this app and tap on image button then it open the gallery and select the images
after that when i press the done button then it's not display images it just display
toast message you haven't picked images