Firebase电子邮件身份验证

Question

因此，我正在创建一个需要登录并注册的应用程序。 我应该在此处添加什么，以便Firebase将电子邮件验证链接发送到输入的电子邮件，如果找不到电子邮件，则返回“输入有效电子邮件”。我的应用程序与Firebase相关联。我成功完成了重置密码验证链接，但无法进行注册。我想念什么？

     package com.sellit.AccountActivity;

     import android.content.Intent;
     import android.support.annotation.NonNull;
     import android.support.v7.app.AppCompatActivity;
     import android.os.Bundle;
     import android.text.TextUtils;
     import android.view.View;
     import android.widget.Button;
     import android.widget.EditText;
     import android.widget.ProgressBar;
     import android.widget.Toast;

    import com.sellit.AccountActivity.MainActivity;
    import com.sellit.AccountActivity.ResetPasswordActivity;
    import com.sellit.R;
    import com.google.android.gms.tasks.OnCompleteListener;
    import com.google.android.gms.tasks.Task;
    import com.google.firebase.auth.AuthResult;
    import com.google.firebase.auth.FirebaseAuth;

    public class SignupActivity extends AppCompatActivity {

private EditText inputEmail, inputPassword;     //hit option + enter if you on mac , for windows hit ctrl + enter
private Button btnSignIn, btnSignUp, btnResetPassword;
private ProgressBar progressBar;
private FirebaseAuth auth;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_signup);
    //Get Firebase auth instance
    auth = FirebaseAuth.getInstance();

    btnSignIn = (Button) findViewById(R.id.sign_in_button);
    btnSignUp = (Button) findViewById(R.id.sign_up_button);
    inputEmail = (EditText) findViewById(R.id.email);
    inputPassword = (EditText) findViewById(R.id.password);
    progressBar = (ProgressBar) findViewById(R.id.progressBar);
    btnResetPassword = (Button) findViewById(R.id.btn_reset_password);

    btnResetPassword.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            startActivity(new Intent(SignupActivity.this, ResetPasswordActivity.class));
        }
    });

    btnSignIn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

    btnSignUp.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            String email = inputEmail.getText().toString().trim();
            String password = inputPassword.getText().toString().trim();

            if (TextUtils.isEmpty(email)) {
                Toast.makeText(getApplicationContext(), "Enter email address!", Toast.LENGTH_SHORT).show();
                return;
            }

            if (TextUtils.isEmpty(password)) {
                Toast.makeText(getApplicationContext(), "Enter password!", Toast.LENGTH_SHORT).show();
                return;
            }

            if (password.length() < 6) {
                Toast.makeText(getApplicationContext(), "Password too short, enter minimum 6 characters!", Toast.LENGTH_SHORT).show();
                return;
            }

            progressBar.setVisibility(View.VISIBLE);
            //create user
            auth.createUserWithEmailAndPassword(email, password)
                    .addOnCompleteListener(SignupActivity.this, new OnCompleteListener<AuthResult>() {
                        @Override
                        public void onComplete(@NonNull Task<AuthResult> task) {
                            Toast.makeText(SignupActivity.this, "createUserWithEmail:onComplete:" + task.isSuccessful(), Toast.LENGTH_SHORT).show();
                            progressBar.setVisibility(View.GONE);
                            // If sign in fails, display a message to the user. If sign in succeeds
                            // the auth state listener will be notified and logic to handle the
                            // signed in user can be handled in the listener.
                            if (!task.isSuccessful()) {
                                Toast.makeText(SignupActivity.this, "Authentication failed." + task.getException(),
                                        Toast.LENGTH_SHORT).show();
                            } else {
                                startActivity(new Intent(SignupActivity.this, MainActivity.class));
                                finish();
                            }
                        }
                    });

        }
    });
}

@Override
protected void onResume() {
    super.onResume();
    progressBar.setVisibility(View.GONE);
}

}

我了解我们需要使用sendEmailVerification（）方法，但是当我在主要活动中使用以下代码时

 @Override
    public void sendEmailVerification() {
        // [START send_email_verification]
         FirebaseAuth auth = FirebaseAuth.getInstance();
         FirebaseUser user = auth.getCurrentUser();

        user.sendEmailVerification()
                .addOnCompleteListener(new OnCompleteListener<Void>() {
                  @Override
                    public void onComplete(@NonNull Task<Void> task) {
                      if (task.isSuccessful()) {
                          Log.d(TAG, "Email sent.");
                        }
                     }
                 });
        // [END send_email_verification]
     }

它说无法在user.sendemailverification（）中解析sendemailverification（） 并显示错误“;”预期在公共无效的sendemailverification（）

中

我也将TAG设置为

    private static final String TAG = "MainActivity";