如何将多个图像上传到Firebase数据库

Question

在我的应用程序个人资料活动中，我希望允许用户上传两种类型的图片：个人资料图片和封面图片，但由于我不知道采用正确的方法，因此我陷入了困境。我已经成功完成了用户个人资料图片的代码，现在我面临的唯一问题是封面图片。

下面是从设备中选择封面图像的代码

new AlertDialog.Builder(SettingsActivity.this)
                    .setTitle("Change Cover")
                    // .setMessage("Change Cover")
                    .setPositiveButton("CHANGE", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {

                            Intent galleryIntent = new Intent();
                            galleryIntent.setType("image/*");
                            galleryIntent.setAction(Intent.ACTION_GET_CONTENT);

                            startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLERY_PICKER);

                        }


                    })
                    .show();

这是用于个人资料图片的

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


            Intent galleryIntent = new Intent();
            galleryIntent.setType("image/*");
            galleryIntent.setAction(Intent.ACTION_GET_CONTENT);

            startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLERY_PICK);

        }
    });

这是处理两个任务的代码

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

            if (requestCode == GALLERY_PICK && resultCode == RESULT_OK) {

                mPdialog = new ProgressDialog(SettingsActivity.this);
        mPdialog.setTitle("Uploading");
        mPdialog.setMessage("please wait....");
        mPdialog.show();

        Uri imageUri = data.getData();

        CropImage.activity(imageUri)
                .setAspectRatio(1, 1)
                .setMinCropWindowSize(500,500)
                .start(SettingsActivity.this);
    }

    if(requestCode == GALLERY_PICKER && resultCode == RESULT_OK
            && data != null && data.getData() != null )
    {
        filePath = data.getData();
        try {
            Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), filePath);
            mProfileCover.setImageBitmap(bitmap);
        }

        catch (IOException e)
        {
            e.printStackTrace();
        }
        File file_thumb = new File(filePath.getPath());

        Bitmap thumb_bitmap = new Compressor(this)
                .setMaxWidth(200)
                .setMaxHeight(200)
                .setQuality(75)
                .compressToBitmap(file_thumb);

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
       // thumb_bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        final byte[] thumb_byte = baos.toByteArray();

        String current_uid = mCurrentuser.getUid();

        StorageReference filepath = mImageReference.child("profile_cover").child(current_uid + ".jpg");
        final StorageReference thumb_path = mImageReference.child("profile_cover").child("thumbs").child(current_uid + ".jpg");
        filepath.putFile(filePath).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {

                if (task.isSuccessful()){

                    final String download_url = task.getResult().getDownloadUrl().toString();
                    UploadTask uploadTask = thumb_path.putBytes(thumb_byte);

                    uploadTask.addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
                        @Override
                        public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> thumb_task) {

                            String thumb_downloadurl = thumb_task.getResult().getDownloadUrl().toString();

                            if (thumb_task.isSuccessful()){

                                Map update_hashmap = new HashMap();
                                update_hashmap.put("cover_image",download_url);
                                update_hashmap.put("cover_thumb", thumb_downloadurl);

                                mDatabase.updateChildren(update_hashmap).addOnCompleteListener(new OnCompleteListener() {
                                    @Override
                                    public void onComplete(@NonNull Task task) {
                                        if (task.isSuccessful()){
                                            mPdialog.dismiss();
                                            Toast.makeText(SettingsActivity.this,"success",Toast.LENGTH_LONG).show();
                                        }

                                    }
                                });
                            }else {
                                Toast.makeText(SettingsActivity.this,"failed",Toast.LENGTH_LONG).show();
                                mPdialog.dismiss();
                            }
                        }
                    });

                }

            }
        });
    }
 if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
        CropImage.ActivityResult result = CropImage.getActivityResult(data);
        if (resultCode == RESULT_OK) {
            Uri resultUri = result.getUri();

            File file_thumb = new File(resultUri.getPath());

            String current_uid = mCurrentuser.getUid();

            Bitmap thumb_bitmap = new Compressor(this)
                    .setMaxWidth(200)
                    .setMaxHeight(200)
                    .setQuality(75)
                    .compressToBitmap(file_thumb);

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            thumb_bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
            final byte[] thumb_byte = baos.toByteArray();

//the rest of the profile image task

但是我现在很困惑，因为我在想这个
startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLERY_PICK);和

startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLERY_PICKER);

应该区分任务，但不能完全那样工作。上传图片时，将调用CropImage，尽管按预期在数据库中创建了文件夹，但上传的图像也会替换当前的个人资料图像。

请问什么是正确处理两种任务的正确方法