Question

我正在创建一个Android分类应用程序，并在此停留了2天，我不知道该怎么做，因为我是Firebase和android的新手。我正在尝试从相机或Firebase的存储上载图像。这是我的代码

private void executeUploadTask() {
    Toast.makeText(getActivity(), "uploading image", Toast.LENGTH_SHORT).show();

    final String postId = FirebaseDatabase.getInstance().getReference().push().getKey();

    final StorageReference storageReference = FirebaseStorage.getInstance().getReference()
            .child("posts/users/" + FirebaseAuth.getInstance().getCurrentUser().getUid() +
                    "/" + postId + "/post_image");

    UploadTask uploadTask = storageReference.putBytes(mUploadBytes);
    uploadTask.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

            Toast.makeText(getActivity(), "Post Success", Toast.LENGTH_SHORT).show();

            //insert the download url into the firebase database
            Uri firebaseUri = taskSnapshot.getDownloadUrl();

            Log.d(TAG, "onSuccess: firebase download url: " + firebaseUri.toString());
            DatabaseReference reference = FirebaseDatabase.getInstance().getReference();

            Post post = new Post();
            post.setImage(firebaseUri.toString());
            post.setCity(mCity.getText().toString());
            post.setContact_email(mContactEmail.getText().toString());
            post.setCountry(mContactEmail.getText().toString());
            post.setDescription(mDescription.getText().toString());
            post.setPost_id(postId);
            post.setPrice(mPrice.getText().toString());
            post.setState_province(mStateProvince.getText().toString());
            post.setTitle(mTitle.getText().toString());
            post.setUser_id(FirebaseAuth.getInstance().getCurrentUser().getUid());

            reference.child(getString(R.string.node_posts))
                    .child(postId)
                    .setValue(post);

            resetFields();
        }
    }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception e) {
            Toast.makeText(getActivity(), "could not upload photo", Toast.LENGTH_SHORT).show();
        }
    }).addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
        @Override
        public void onProgress(UploadTask.TaskSnapshot taskSnapshot) {
            double currentProgress = (100 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();
            if( currentProgress > (mProgress + 15)){
                mProgress = (100 * taskSnapshot.getBytesTransferred()) / taskSnapshot.getTotalByteCount();
                Log.d(TAG, "onProgress: upload is " + mProgress + "& done");
                Toast.makeText(getActivity(), mProgress + "%", Toast.LENGTH_SHORT).show();
            }
        }
    });
}

Answer 1

不推荐使用UploadTask.getDownloadUrl（）。改用StorageReference.getDownloadUrl（）。

错误：找不到具有此错误的符号方法getDownloadUrl（）

1 个答案: