我无法使用“ getDownloadUrl”获取网址-Android 2019

Question

我知道现在我们不能使用getDownloadUrl在firebase-firestore上更新图像，但是我找不到找到它的一种方法。

您在其中的图片onClickListenner：

imagem.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                if(ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.READ_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED){
                    Toast.makeText(getActivity(),"Permission Denied", Toast.LENGTH_LONG).show();
                    ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},1);

                }else {

                    CropImage.activity().setGuidelines(CropImageView.Guidelines.ON).setAspectRatio(1,1).start(getActivity());

                }
            }
        }
    });

我正在像这样使用CropImage：

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

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

            mainImage = result.getUri();
            imagem.setImageURI(mainImage);

        } else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {

            Exception error = result.getError();
            Toast.makeText(getActivity(),"Erro "+ error, Toast.LENGTH_LONG).show();


        }
    }
}

您可以在其中将按钮保存在Firestore-firebase上的图像：

bGuardar.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (mainImage != null){

                StorageReference image_path = storageReference.child("profile_images").child(user_id + ".jpg");
                image_path.putFile(mainImage).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {

                        if(task.isSuccessful()){

                            //AQUI
                            Uri download_uri = task.getResult().getDownloadUrl();
                            Log.d("Erro", "errrrooooo: " + download_uri);

                        }else{
                            String erro = task.getException().getMessage();
                            Toast.makeText(getActivity(),"Erro: "+erro, Toast.LENGTH_LONG).show();
                        }

                    }
                });

            }
        }
    });

我正在使用片段，这就是为什么我使用“ getActivity”而不是“ this”的原因