Firebase匿名身份验证赢得了工作

如何解决Firebase匿名身份验证赢得了工作

我正在尝试将图片上传到Firebase存储中，而拍照则采用位图的形式。但是我根本不需要任何身份验证，因此我遵循了匿名登录的Firebase教程。运行该应用程序时，我没有收到任何错误，但图片无法上传。我并不在乎参与的图片是否完美，现在我要集中精力上传到Firebase上。

public class MainActivity extends AppCompatActivity {
    private FirebaseAuth mAuth;

    ImageView imageView;
    Button btnOpen;
    TextView textView;


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

        mAuth = FirebaseAuth.getInstance();
        imageView = findViewById(R.id.image_view);
        btnOpen = findViewById(R.id.btn_open);
        textView = findViewById(R.id.textView);


        if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(MainActivity.this,new String[]{
                    Manifest.permission.CAMERA
            },100);
        }


        btnOpen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent,100);
            }
        });


    }

    @Override
    public void onStart() {
        super.onStart();
        FirebaseUser currentUser = mAuth.getCurrentUser();
        Log.e("USER",currentUser.toString());
    }


    public void signInAnonymously() {
        mAuth.signInAnonymously()
                .addOnCompleteListener(this,new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {
                            // Sign in success,update UI with the signed-in user's information
                            Log.d("TAG","signInAnonymously:success");
                            FirebaseUser user = mAuth.getCurrentUser();
                        } else {
                            // If sign in fails,display a message to the user.
                            Log.w("TAG","signInAnonymously:failure",task.getException());

                        }

                    }
                });
    }


    @Override
    protected void onActivityResult(int requestCode,int resultCode,@Nullable Intent data) {

        super.onActivityResult(requestCode,resultCode,data);
        if (requestCode == 100) {
            assert data != null;
            Bitmap takenImage = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

            signInAnonymously();
//            saveImage(takenImage);
            imageView.setImageBitmap(takenImage);

        }

    }

    private void saveImage(Bitmap inBitmap) {
        long tsLong = System.currentTimeMillis() / 1000;
        String ts = Long.toString(tsLong);

        FirebaseStorage storage = FirebaseStorage.getInstance();
        StorageReference storageRef = storage.getReferenceFromUrl("gs://savephototest.appspot.com");
        StorageReference mountainImagesRef = storageRef.child(ts + ".jpg");
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        inBitmap.compress(Bitmap.CompressFormat.JPEG,20,baos);
        byte[] data = baos.toByteArray();
        UploadTask uploadTask = mountainImagesRef.putBytes(data);

        uploadTask.addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception exception) {
            }
        }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                Uri downloadUrl = taskSnapshot.getUploadSessionUri();
                Log.d("downloadUrl-->","" + downloadUrl);
            }
        });


    }
}

解决方法

您将在登录（异步发生）完成之前开始上传图像。因此，如果您具有存储安全规则，可以在用户上载之前登录该安全规则，那么这将拒绝写入。

由于您将onFailure保留为空，因此不会看到该错误。因此，验证是否正在发生的第一步是不要忽略该错误，而是将其浮出水面。例如：

public void onFailure(@NonNull Exception exception) {
  throw exception;
}

---

如果这确实是问题的原因，则需要确保仅在登录完成后才开始上传。

一种非常快速的方法是将对saveImage的调用移至登录方法：

public void signInAnonymouslyAndUpload() {
    mAuth.signInAnonymously()
        .addOnCompleteListener(this,new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if (task.isSuccessful()) {
                    Log.d("TAG","signInAnonymously:success");
                    FirebaseUser user = mAuth.getCurrentUser();
                    saveImage(takenImage);
                } else {
                    // If sign in fails,display a message to the user.
                    Log.w("TAG","signInAnonymously:failure",task.getException());
                }
            }
        });
}


@Override
protected void onActivityResult(int requestCode,int resultCode,@Nullable Intent data) {
    super.onActivityResult(requestCode,resultCode,data);
    if (requestCode == 100) {
        assert data != null;
        Bitmap takenImage = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

        signInAnonymouslyAndUpload();
        imageView.setImageBitmap(takenImage);
    }
}