Ошибка: не удается найти символьный метод getDownloadUrl () типа com.google.firebase.storage.UploadTask.TaskSnapshot

UploadTask.getDownloadUrl() устарел. Вместо этого используйте StorageReference.getDownloadUrl ().

Как указал Дуг, UploadTask.getDownloadUrl() устарел, поэтому используйте StorageReference.getDownloadUrl ().

Но StorageReference.getDownloadUrl () возвращает Task, который должен обрабатываться асинхронно, вы не могу делаете Uri downloadUrl = photoRef.getDownloadUrl().getResult();, иначе вы получите java.lang.IllegalStateException: Task is not yet complete

Поэтому обрабатывайте его асинхронно следующим образом

 photoRef.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                    @Override
                    public void onSuccess(Uri uri) {
                        Uri downloadUrl = uri;
                        Toast.makeText(getBaseContext(), "Upload success! URL - " + downloadUrl.toString() , Toast.LENGTH_SHORT).show();
                    }
                });

Если у вас есть image_uri и вы поместили его в хранилище firebase, этот код вам поможет.

private StorageReference storageReference= FirebaseStorage.getInstance().getReference();

 final StorageReference ref = storageReference.child("picture.jpg");
    ref.putFile(image_uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
            ref.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                @Override
                public void onSuccess(Uri uri) {
                    final Uri downloadUrl = uri;


                }
            });

uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
    filePath.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
        @Override
        public void onSuccess(Uri uri) {
            Map newImage = new HashMap();
            newImage.put("profileImageUrl", uri.toString());
            mDriverDatabase.updateChildren(newImage);

            finish();
            return;
        }
    }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception exception) {
            finish();
            return;
        }
    });
}

}); ** мы можем использовать получить URL-адрес загрузки таким образом, потому что firebase внесла некоторые изменения **

getDownloadUrl больше не существует.

Итак, новый метод:

final StorageReference ref = storageRef.child("images/mountains.jpg");
uploadTask = ref.putFile(file);

Task<Uri> urlTask = uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
    @Override
    public Task<Uri> then(@NonNull Task<UploadTask.TaskSnapshot> task) throws Exception {
        if (!task.isSuccessful()) {
            throw task.getException();
        }

        // Continue with the task to get the download URL
        return ref.getDownloadUrl();
    }
}).addOnCompleteListener(new OnCompleteListener<Uri>() {
    @Override
    public void onComplete(@NonNull Task<Uri> task) {
        if (task.isSuccessful()) {
            Uri downloadUri = task.getResult();
        } else {
            // Handle failures
            // ...
        }
    }
});

Документ Firebase

Попробуйте этот код ..

public class MainActivity extends AppCompatActivity {

String LOG_TAG = MainActivity.class.getSimpleName();

Button buttonUpload, buttonDownload;
RadioGroup radioGroup;
ImageView imageviewResult;

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

    buttonUpload = findViewById(R.id.upload_button);
    buttonDownload = findViewById(R.id.download_button);
    radioGroup = findViewById(R.id.radio_group);
    imageviewResult = findViewById(R.id.resultant_imageview);

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

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

private void uploadImage() {
    // Start by getting our StorageReference
    FirebaseStorage storage = FirebaseStorage.getInstance();
    StorageReference rootRef = storage.getReference();
    StorageReference bearRef = rootRef.child("images/bear.jpg");
    final ProgressDialog progressDialog = new ProgressDialog(this);
    progressDialog.setTitle("Uploading");
    progressDialog.show();

    // Get the data from the image as bytes
    ImageView bearImage = getSelectedBearImage();
    bearImage.setDrawingCacheEnabled(true);
    bearImage.buildDrawingCache();
    Bitmap bitmap = bearImage.getDrawingCache();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] data = baos.toByteArray();

    // Upload it to our reference
    UploadTask uploadTask = bearRef.putBytes(data);
    buttonDownload.setEnabled(false);
    uploadTask.addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception exception) {
            // Handle unsuccessful uploads
            progressDialog.dismiss();

            Log.w(LOG_TAG, "Upload failed: " + exception.getMessage());
        }
    }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
            // taskSnapshot.getMetadata() contains file metadata such as size, content-type, and download URL.
            Uri downloadUrl = taskSnapshot.getDownloadUrl();
            progressDialog.dismiss();

            Log.d(LOG_TAG, "Download Url: " + downloadUrl);
            buttonDownload.setEnabled(true);
        }
    });
}

private void downloadImage() {
    // Start by getting a reference to the same location we uploaded to
    FirebaseStorage storage = FirebaseStorage.getInstance();
    StorageReference rootRef = storage.getReference();
    StorageReference bearRef = rootRef.child("images/bear.jpg");
    final ProgressDialog progressDialog = new ProgressDialog(this);
    progressDialog.setTitle("Uploading");
    progressDialog.show();

    // Download our data with a max allocation of 1MB
    final long ONE_MEGABYTE = 1024 * 1024;
    bearRef.getBytes(ONE_MEGABYTE).addOnSuccessListener(new OnSuccessListener<byte[]>() {
        @Override
        public void onSuccess(byte[] bytes) {
            // Convert bytes to bitmap and call setImageBitmap
            progressDialog.dismiss();
            Log.d(LOG_TAG, "Download successful");
            Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
            imageviewResult.setImageBitmap(bitmap);
        }
    }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception exception) {
            // Handle any errors
            progressDialog.dismiss();

            Log.w(LOG_TAG, "Download failed: " + exception.getMessage());
        }
    });
}

private ImageView getSelectedBearImage() {
    switch (radioGroup.getCheckedRadioButtonId()) {
        case R.id.radio1:
            return findViewById(R.id.image_bear1);
        case R.id.radio2:
            return findViewById(R.id.image_bear2);
        case R.id.radio3:
            return findViewById(R.id.image_bear3);
        case R.id.radio4:
            return findViewById(R.id.image_bear4);
        default:
            return findViewById(R.id.image_bear1);
    }
}

}

activity.xml ..

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
xmlns:app = "http://schemas.android.com/apk/res-auto"
xmlns:tools = "http://schemas.android.com/tools"
android:layout_width = "match_parent"
android:layout_height = "match_parent"
android:orientation = "vertical"
tools:context = "com.example.adruser.firebasestorageapp.MainActivity">

<LinearLayout
    android:layout_width = "match_parent"
    android:layout_height = "96dp"
    android:orientation = "horizontal">
    <ImageView
        android:id = "@+id/image_bear1"
        android:layout_width = "0dp"
        android:layout_height = "wrap_content"
        android:layout_weight = "1"
        android:scaleType = "centerInside"
        android:src = "@drawable/a"/>
    <ImageView
        android:id = "@+id/image_bear2"
        android:layout_width = "0dp"
        android:layout_height = "wrap_content"
        android:layout_weight = "1"
        android:scaleType = "centerInside"
        android:src = "@drawable/tiger"/>
    <ImageView
        android:layout_width = "0dp"
        android:id = "@+id/image_bear3"
        android:layout_height = "wrap_content"
        android:layout_weight = "1"
        android:scaleType = "centerInside"
        android:src = "@drawable/download"/>
    <ImageView
        android:layout_width = "0dp"
        android:id = "@+id/image_bear4"
        android:layout_height = "wrap_content"
        android:layout_weight = "1"
        android:scaleType = "centerInside"
        android:src = "@drawable/add"/>
</LinearLayout>

<RadioGroup
    android:id = "@+id/radio_group"
    android:layout_width = "match_parent"
    android:layout_height = "wrap_content"
    android:orientation = "horizontal">
    <RadioButton
        android:id = "@+id/radio1"
        android:layout_width = "0dp"
        android:layout_weight = "1"
        android:checked = "true"
        android:layout_height = "wrap_content" />
    <RadioButton
        android:id = "@+id/radio2"
        android:layout_width = "0dp"
        android:layout_weight = "1"
        android:layout_height = "wrap_content" />
    <RadioButton
        android:id = "@+id/radio3"
        android:layout_width = "0dp"
        android:layout_weight = "1"
        android:layout_height = "wrap_content" />
    <RadioButton
        android:id = "@+id/radio4"
        android:layout_width = "0dp"
        android:layout_weight = "1"
        android:layout_height = "wrap_content" />
</RadioGroup>

<TextView
    android:layout_marginTop = "16dp"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content"
    android:text = "Downloaded Image"/>

<ImageView
    android:id = "@+id/resultant_imageview"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content"
    android:layout_marginTop = "16dp"/>

<Button
    android:id = "@+id/upload_button"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content"
    android:layout_marginTop = "24dp"
    android:text = "Upload"/>

<Button
    android:id = "@+id/download_button"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content"
    android:enabled = "false"
    android:layout_marginTop = "8dp"
    android:text = "Download"/>

</LinearLayout>

и я надеюсь, что вы подключились к хранилищу firebase и разрешили доступ в Интернет.

    <uses-permission android:name = "android.permission.INTERNET"/>

дополнительную информацию см. по этой ссылке .. https://code.tutsplus.com/tutorials/image-upload-to-firebase-in-android-application--cms-29934

Для котлина

val uploadTask = fileReference.putFile(Uri.fromFile(primaryFile), metadata)

а также

        uploadTask
                .addOnProgressListener { taskSnapshot ->

                }

                .addOnPausedListener { 

                }

                .addOnSuccessListener { taskSnapshot ->
                }
                .continueWithTask { task ->
                    if (!task.isSuccessful) {
                        throw task.exception!!
                    }
                 fileReference.downloadUrl
                }

                .addOnCompleteListener { task ->

                    if (task.isSuccessful) {
                        val downloadUrl: Uri = task.result

                    } else {
                        // Handle failures
                    }
                }

                .addOnFailureListener { e ->

                }

val downloadUrl - это ваш загруженный URL.