UploadImage.java

public class ProfileActivity extends Fragment {
    private static final int CHOOSE_IMAGE = 101;
    Context context;
    ImageView imageView;
    EditText editTextName, editTextEmail, editTextPhone, editTextAddress, editTextCity;
    Button update;

    private static final String KEY_EMAIL = "email";
    private static final String KEY_NUMBER = "number";
    private static final String KEY_ADDRESS = "address";
    private static final String KEY_CITY = "city";


    Uri uriProfileImage;
    ProgressBar progressBar;

    String profileImageUrl;

    FirebaseAuth mAuth;


    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View navigationView = inflater.inflate(R.layout.activity_profile, container, false);

        editTextName = navigationView.findViewById(R.id.editName);
        editTextEmail = navigationView.findViewById(R.id.editEmail);
        editTextPhone = navigationView.findViewById(R.id.editPhone);
        editTextAddress = navigationView.findViewById(R.id.editAddress);
        editTextCity = navigationView.findViewById(R.id.editCity);
        imageView = navigationView.findViewById(R.id.imageView);
        progressBar = navigationView.findViewById(R.id.progressbar);
        update = navigationView.findViewById(R.id.btnSave);
        ImageView imageEditpen = navigationView.findViewById(R.id.editPen);


        imageEditpen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                showImageChooser();
            }
        });

        loadUserInformation();

        update.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                saveUserInformation();
            }
        });

        return navigationView;
    }

    private void showImageChooser() {
        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(intent, "Select Profile Image"), CHOOSE_IMAGE);
    }


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


        if (requestCode == CHOOSE_IMAGE && resultCode == RESULT_OK && data != null && data.getData() != null) {
            uriProfileImage = data.getData();
            try {
                Bitmap bitmap = MediaStore.Images.Media.getBitmap(getActivity().getContentResolver(), uriProfileImage);
                imageView.setImageBitmap(bitmap);
                uploadImageToFireBaseStorage();

            } catch (IOException e) {
                Toast.makeText(getActivity(), e.getMessage(), Toast.LENGTH_LONG).show();
            }
        }
    }

    private void uploadImageToFireBaseStorage() {
        StorageReference profileImageRef =
                FirebaseStorage.getInstance().getReference("profilepics/" + System.currentTimeMillis() + ".jpg");

        if (uriProfileImage != null) {
            progressBar.setVisibility(View.VISIBLE);
            profileImageRef.putFile(uriProfileImage)
                    .addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                        @Override
                        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                            progressBar.setVisibility(View.GONE);

                            Toast.makeText(getActivity(), "Profile picture uploaded", Toast.LENGTH_SHORT).show();

                            Task<Uri> urlTask = taskSnapshot.getStorage().getDownloadUrl();
                            while (!urlTask.isSuccessful()) ;
                            Uri downloadUrl = urlTask.getResult();
                            profileImageUrl = downloadUrl.toString();
                        }
                    })
                    .addOnFailureListener(new OnFailureListener() {
                        @Override
                        public void onFailure(@NonNull Exception e) {
                            progressBar.setVisibility(View.GONE);
                            Toast.makeText(context, e.getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    });
        }
    }