堆栈溢出新增功能，一般编程功能也新增功能。我正在Android Studio上使用Java创建一个应用程序。我目前正在尝试使用firebase创建登录和注册屏幕。我自己尝试了一下，直到我决定遵循教程，而不是因为我几乎没有经验。教程讲师似乎没有问题，但我无法摆脱这个错误：意外的隐式投射到TextInputLayout：布局标签是第35行的EditText。

我不完全确定为什么会出现这个错误，我尝试在XML和Java文件中三重检查我的语法和标点符号。我确信我错过了一些简单的东西，我看不到它。这是我的java代码：

public class RegisterActivity extends AppCompatActivity {

private TextInputLayout inputEmail, inputPassword, inputConfirmPassword;
Button btnRegister;
TextView alreadyHaveAccount;
FirebaseAuth mAuth;
ProgressDialog mLoadingBar;

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

    inputEmail = findViewById(R.id.inputEmail);
    inputPassword = findViewById(R.id.inputPassword);
    inputConfirmPassword = findViewById(R.id.inputConfirmPassword);
    btnRegister = findViewById(R.id.btnRegister);
    alreadyHaveAccount = findViewById(R.id.alreadyHaveAccount);
    mAuth = FirebaseAuth.getInstance();
    mLoadingBar = new ProgressDialog(this);

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


 alreadyHaveAccount.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        Intent intent = new Intent(RegisterActivity.this, LoginActivity.class);
        startActivity(intent);
     }
  });
}


private void attemptRegistration(){
String email = inputEmail.getEditText().getText().toString();
String password = inputPassword.getEditText().getText().toString();
String confirmPassword = inputConfirmPassword.getEditText().getText().toString();

    if (email.isEmpty() || !email.contains("@gmail")) {
    showError(inputEmail, "Email  is not valid");

    } else if (password.isEmpty() || password.length() <= 7) {
    showError(inputPassword, "Password must be at least 8 characters");

    } else if (!confirmPassword.equals(password)) {
    showError(inputConfirmPassword, "Passwords do not match");
    } else {
        mLoadingBar.setTitle("Registration");
        mLoadingBar.setMessage("Please wait");
        mLoadingBar.setCanceledOnTouchOutside(false);
        mLoadingBar.show();
        mAuth.createUserWithEmailAndPassword(email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(@NonNull Task<AuthResult> task) {
                if (task.isSuccessful())
                {
                    mLoadingBar.dismiss();
                    Toast.makeText(RegisterActivity.this, "Registered successfully!", Toast.LENGTH_SHORT).show();
                    Intent intent = new Intent(RegisterActivity.this, SetupActivity.class);
                    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivity(intent);
                    finish();
                }
                else {
                    mLoadingBar.dismiss();
                    Toast.makeText(RegisterActivity.this, "Failed registration, please try again later", Toast.LENGTH_SHORT).show();
                    }
            }
        });
    }
}

private void showError(TextInputLayout field, String text) {
    field.setError(text);
    field.requestFocus();
}

}

这是我的XML代码：

<EditText
    android:id="@+id/inputPassword"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="16dp"
    android:ems="10"
    android:inputType="textPassword"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    android:importantForAutofill="no"
    tools:ignore="LabelFor" />

<Button
    android:id="@+id/btnRegister"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Register"
    android:textColor="@color/colorBlack"
    android:textStyle="bold"
    app:iconTint="@color/colorGray"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.498"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/inputConfirmPassword" />

<EditText
    android:id="@+id/username"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="16dp"
    android:ems="10"
    android:importantForAutofill="no"
    android:inputType="textPersonName"
    android:text="User Name"
    app:layout_constraintBottom_toTopOf="@+id/inputPassword"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="LabelFor" />

<EditText
    android:id="@+id/inputEmail"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="16dp"
    android:ems="10"
    android:importantForAutofill="no"
    android:inputType="textPersonName|textEmailAddress"
    android:text="Email"
    app:layout_constraintBottom_toTopOf="@+id/username"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.502"
    app:layout_constraintStart_toStartOf="parent"
    tools:ignore="LabelFor" />

<EditText
    android:id="@+id/inputConfirmPassword"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="16dp"
    android:ems="10"
    android:importantForAutofill="no"
    android:inputType="textPassword"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/inputPassword"
    tools:ignore="LabelFor" />

<TextView
    android:id="@+id/alreadyHaveAccount"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Already have an account?"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/btnRegister" />

<TextView
    android:id="@+id/registerText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Register"
    android:textSize="34sp"
    app:layout_constraintBottom_toTopOf="@+id/inputEmail"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

下面是我得到的堆栈跟踪错误:

2021-08-16 08：12：20.026 1168-2163/com.google.android.gms E/angh： 表型 API 错误.事件 # caox@a4027c2b， 事件代码： 12 [上下文 service_id=51 ] anfl： 29503 2021-08-16 08：13：49.830 7617-7617/com.example.branchmanager W/e.branchmanage： Access hidden method Landroid/app/ResourcesManager;-