将文本上传到Firebase数据库

Question

我正在尝试将一些文本和图像上传到我的数据库，并且 getDownloadURL（）方法无法识别，因为我正在使用

firebase 16.0.9

我想。所以现在我这样做：

Buildings upload = new 
Buildings(mEditTextFileName.getText().toString().trim(), 
downloadUrl.toString());

这有效，但是我不确定如何上传两个文本字段。在旧方法getDownloadURL（）中，我将执行以下操作：

Buildings upload = new      
Buildings(mEditTextAddress.getText().toString().trim(),
taskSnapshot.getDownloadUrl().toString(),
mEditTextAddress.getText ().toString ());

但是我不确定如何使用新方法上传多个文本字段。

UploadActivity.java

`private static final int PICK_IMAGE_REQUEST = 1;

private Button mButtonChooseImage;
private Button mButtonUpload;
private TextView mTextViewShowUploads;
private EditText mEditTextFileName;
private ImageView mImageView;
private ProgressBar mProgressBar;
private EditText mEditTextAddress;
private EditText mEditTextDescription;
private EditText mEditTextCategory;

private Uri mImageUri;

private StorageReference mStorageRef;
private DatabaseReference mDatabaseRef;

private StorageTask mUploadTask;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_upload);

    FirebaseApp.initializeApp(this);
    mButtonChooseImage = findViewById(R.id.chose_image_btn);
    mButtonUpload = findViewById(R.id.upload_btn);
    mTextViewShowUploads = findViewById(R.id.showRecycler_textView);
    mEditTextFileName = findViewById(R.id.name_editText2);
    mEditTextAddress = findViewById(R.id.address_editText3);
    mEditTextDescription = findViewById(R.id.desc_editText4);
    mEditTextCategory = findViewById(R.id.category_editText);
    mImageView = findViewById(R.id.uploadedImgPreview);
    mProgressBar = findViewById(R.id.progressBar);
    mStorageRef = FirebaseStorage.getInstance().getReference("Buildings");
    mDatabaseRef = 
FirebaseDatabase.getInstance().getReference("Buildings");


    mButtonChooseImage.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openFileChooser();
        }
    });

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


            if (mUploadTask != null && mUploadTask.isInProgress()) {
                Toast.makeText(UploadActivity.this, "Upload in progress", 
Toast.LENGTH_SHORT).show();
            } else {
                uploadFile();
            }
        }
    });

    mTextViewShowUploads.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            openImagesActivity();
        }
    });
}

private void openFileChooser() {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(intent, PICK_IMAGE_REQUEST);
}

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

    if (requestCode == PICK_IMAGE_REQUEST && resultCode == RESULT_OK
            && data != null && data.getData() != null) {
        mImageUri = data.getData();

        Picasso.get().load(mImageUri).into(mImageView);
    }
}

private String getFileExtension(Uri uri) {
    ContentResolver cR = getContentResolver();
    MimeTypeMap mime = MimeTypeMap.getSingleton();
    return mime.getExtensionFromMimeType(cR.getType(uri));
}

private void uploadFile() {
    if (mImageUri != null) {
        StorageReference fileReference = 
mStorageRef.child(System.currentTimeMillis()
                + "." + getFileExtension(mImageUri));

        mUploadTask = fileReference.putFile(mImageUri)
                .addOnSuccessListener(new 
OnSuccessListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onSuccess(UploadTask.TaskSnapshot 
taskSnapshot) {
                        Handler handler = new Handler();
                        handler.postDelayed(new Runnable() {
                            @Override
                            public void run() {
                                mProgressBar.setProgress(0);
                            }
                        }, 500);

                        Toast.makeText(UploadActivity.this, "Upload 
successful", Toast.LENGTH_LONG).show();

                        Task<Uri> urlTask = 
taskSnapshot.getStorage().getDownloadUrl();
                        while (!urlTask.isSuccessful()) ;
                        Uri downloadUrl = urlTask.getResult();

                        Buildings upload = new 
Buildings(mEditTextFileName.getText().toString().trim(), 
downloadUrl.toString());


                        String uploadId = mDatabaseRef.push().getKey();
                        mDatabaseRef.child(uploadId).setValue(upload);

                    }
                })
                .addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        Toast.makeText(UploadActivity.this, 
e.getMessage(), Toast.LENGTH_SHORT).show();
                    }
                })
                .addOnProgressListener(new 
OnProgressListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onProgress(UploadTask.TaskSnapshot 
taskSnapshot) {
                        double progress = (100.0 * 
taskSnapshot.getBytesTransferred() / taskSnapshot.getTotalByteCount());
                        mProgressBar.setProgress((int) progress);
                    }
                });
    } else {
        Toast.makeText(this, "No file selected", 
Toast.LENGTH_SHORT).show();
    }
}


private void openImagesActivity() {
    Intent intent = new Intent(this, MainActivity.class);
    startActivity(intent);
}`