Question

我正在开发一个社交媒体类型的应用程序，它也具有Firebase连接。突然我收到此错误：

无法解析方法.addOnCompleteListener（）。

我尝试使缓存无效并重新启动，重新构建项目，再次同步项目，还删除了.gradle文件夹中的内容，并且未进行任何重建。

这些是一些项目文件的图像，如果需要，我可以提供更多。

RegisterActivity.java RegisterActivity.java

RegisterActivity.java导入区域 RegisterActivity.java import area

build.gradle（模块应用） build.gradle(module app)

build.grale（项目） build.grale(project)

RegisterActivity.java的代码

package com.socialnetwork.socialnet;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import android.app.ProgressDialog;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;



public class RegisterActivity extends AppCompatActivity
{
private EditText UserEmail, UserPassword, UserConfirmPassword;
private Button CreateAccountButton;
private ProgressDialog loadingBar;

private FirebaseAuth mAuth;


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


    mAuth = FirebaseAuth.getInstance();


    UserEmail = (EditText) findViewById(R.id.register_email);
    UserPassword = (EditText) findViewById(R.id.register_password);
    UserConfirmPassword = (EditText) findViewById(R.id.register_confirm_password);
    CreateAccountButton = (Button) findViewById(R.id.register_create_account);
    loadingBar = new ProgressDialog(this);


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



private void CreateNewAccount()
{
    String email = UserEmail.getText().toString();
    String password = UserPassword.getText().toString();
    String confirmPassword = UserConfirmPassword.getText().toString();

    if(TextUtils.isEmpty(email))
    {
        Toast.makeText(this, "Please write your email...", Toast.LENGTH_SHORT).show();
    }
    else if(TextUtils.isEmpty(password))
    {
        Toast.makeText(this, "Please write your password...", Toast.LENGTH_SHORT).show();
    }
    else if(TextUtils.isEmpty(confirmPassword))
    {
        Toast.makeText(this, "Please confirm your password...", Toast.LENGTH_SHORT).show();
    }
    else if(!password.equals(confirmPassword))
    {
        Toast.makeText(this, "your password do not match with your confirm password...", Toast.LENGTH_SHORT).show();
    }
    else
    {
        loadingBar.setTitle("Creating New Account");
        loadingBar.setMessage("Please wait, while we are creating your new Account...");
        loadingBar.show();
        loadingBar.setCanceledOnTouchOutside(true);

        mAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task)
                    {
                        if(task.isSuccessful())
                        {
                            SendUserToSetupActivity();

                            Toast.makeText(RegisterActivity.this, "you are authenticated successfully...", Toast.LENGTH_SHORT).show();
                            loadingBar.dismiss();
                        }
                        else
                        {
                            String message = task.getException().getMessage();
                            Toast.makeText(RegisterActivity.this, "Error Occured: " + message, Toast.LENGTH_SHORT).show();
                            loadingBar.dismiss();
                        }
                    }
                });
    }
}



private void SendUserToSetupActivity()
{
    Intent setupIntent = new Intent(RegisterActivity.this, SetupActivity.class);
    setupIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
    startActivity(setupIntent);
    finish();
}
}

Answer 1

您缺少this关键字。试试

.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() { .... }

检查Set up Firebase Authentication for Android的“注册新用户”部分，您将看到丢失的地方

或尝试

我已经检查了您的代码和我的代码之间的区别，唯一重要的区别是我在其中实现的应用build.gradle文件中

implementation 'com.google.firebase:firebase-core:16.0.1'

而你没有。尝试实施。

无法解析方法addOnCompleteListener

1 个答案: