Не загружаются данные в Firebase отдельно друг от друга

 public class PostActivity extends AppCompatActivity {
 
private ImageButton mSelectImage;
private EditText mPostTitle;
private EditText mPostDesc;
 
private Button mSubmitBtn;
 
private Uri mImageUri = null;
 
private StorageReference mStorage;
private DatabaseReference mDatabase;
 
private ProgressDialog mProgress;
 
private static final int GALLERY_REQUEST = 1;
 
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_post);
 
    mStorage = FirebaseStorage.getInstance().getReference();
    mDatabase = FirebaseDatabase.getInstance().getReference().child("Blog");
 
 
    mSelectImage = (ImageButton) findViewById(R.id.imageSelect);
 
    mPostTitle =(EditText)findViewById(R.id.titleField);
    mPostDesc = (EditText)findViewById(R.id.descField);
    mSubmitBtn = (Button)findViewById(R.id.submitBtn);
    mProgress = new ProgressDialog(this);
 
    mSelectImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
 
            Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
            galleryIntent.setType("image/*");
            startActivityForResult(galleryIntent,GALLERY_REQUEST);
        }
    });
 
    mSubmitBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
 
            startposting();
        }
    });
}
 
private void startposting() {
 
    //mProgress.setMessage("Uploading Post..");
    //mProgress.show();
 
    final String title_val = mPostTitle.getText().toString().trim();
    final String desc_val = mPostDesc.getText().toString().trim();
 
    if(!TextUtils.isEmpty(title_val)&& !TextUtils.isEmpty(desc_val)&& mImageUri!=null){
 
        StorageReference filepath = mStorage.child("Blog_images").child(mImageUri.getLastPathSegment());
 
        filepath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
 
                @SuppressWarnings("VisibleForTests") Uri downloadUri = taskSnapshot.getDownloadUrl();
 
                DatabaseReference newPost = mDatabase.push();
                newPost.child("title").setValue(title_val);
                newPost.child("desc").setValue(desc_val);
                newPost.child("image").setValue(downloadUri.toString());
 
 
                mProgress.dismiss();
 
                startActivity(new Intent(PostActivity.this, MainActivity.class));
            }
        }).addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
                        //calculating progress percentage
                        @SuppressWarnings("VisibleForTests") double progress = (100.0 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();
 
                        //displaying percentage in progress dialog
                        mProgress.setMessage("Uploading " + ((int) progress) + "%...");
                        mProgress.show();
                    }
                });
    }
 
 
}
 
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
 
    if ( requestCode == GALLERY_REQUEST && resultCode == RESULT_OK ){
        mImageUri = data.getData();
        mSelectImage.setImageURI(mImageUri);
    }
}
}

mImageUri!=null