無法決議“FirebaseStorage”中的方法“集合”

我想訪問我的 firebasecollection但不知何故它在這個 java 檔案上不起作用，否則我的 android 專案上有另一個 java 檔案，它包含相同的語法并且它實際作業..我不知道解決這一行

在 Signupn.java 上（作業）

fAuth.createUserWithEmailAndPassword(email, password)
                    .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        Toast.makeText(SignUp.this, "User Created", Toast.LENGTH_SHORT).show();
                        userId = fAuth.getCurrentUser().getUid();
                        DocumentReference documentReference =fStore.collection("users").document(userId);
                        Map<String,Object> user =new HashMap<>();
                        user.put("fName",fullName);
                        user.put("email",email);
                        user.put("phone",phone);
                        documentReference.set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
                            @Override
                            public void onSuccess(Void unused) {
                                Log.d(TAG,"onSuccess: user Profile is created for "  userId);
                            }
                        });
                        startActivity(new Intent(getApplicationContext(), MainActivity.class));
                    }else{
                        Toast.makeText(SignUp.this, "Error!" task.getException().getMessage(), Toast.LENGTH_SHORT).show();
                        progressBar.setVisibility(View.GONE);
                    }
                }
            });

關于 EditProfile.java（錯誤）

 saveBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (editFullName.getText().toString().isEmpty() || editEmail.getText().toString().isEmpty()
                        || editPhone.getText().toString().isEmpty()) {
                    Toast.makeText(EditProfile.this, "All Fields Are Required.", Toast.LENGTH_SHORT).show();
                    return;
                }

                String email = editEmail.getText().toString();
                user.updateEmail(email).addOnSuccessListener(new OnSuccessListener<Void>() {
                    @Override
                    public void onSuccess(Void unused) {
                        DocumentReference docRef = fStore.collection("users").document(user.getUid());
                        Map<String, Object> edited = new HashMap<>();
                        edited.put("email", email);
                        edited.put("fName", editFullName.getText().toString());
                        edited.put("phone", editPhone.getText().toString());
                        docRef.update(edited);
                        Toast.makeText(EditProfile.this, "Email Changed Successfully.", Toast.LENGTH_SHORT).show();
                    }
                }).addOnFailureListener(new OnFailureListener() {
                    @Override
                    public void onFailure(@NonNull Exception e) {
                        Toast.makeText(EditProfile.this, "Error!", Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });

here is where the error line

DocumentReference docRef = fStore.collection("users").document(user.getUid());

在collection句子中。

這張圖片來自 editProfile.java

此圖片來自 signup.java

感謝您提供有價值的答案，任何答案我都非常滿意。

uj5u.com熱心網友回復：

請在兩個類中驗證 fstore 物件的資料型別，或者在宣告 fstore 和初始化它的任何地方發布完整代碼

標籤：Google Cloud Collective 爪哇安卓火力基地google-cloud-firestore

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